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Caterpillar UPS 900
Maintenance schedule, common problems & OEM parts breakdown
The Cat UPS 900 is a stationary, battery-free flywheel Uninterruptible Power Supply rated near 900 kVA / 720 kW at 480 VAC, not an engine-generator set despite naming conventions some asset registers use. No series in this line carries an onboard combustion engine; ride-through power comes from a magnetically suspended flywheel rotor spinning inside a sealed, low-vacuum housing, converted through an IGBT-based bi-directional converter. The current 900Z rating, part of the paralleled-module 300Z/600Z/900Z/1200Z platform, weighs about 7144 kg (15,750 lb); earlier CleanSource-derived single-module UPS units built under the Cat brand from around 2000 onward are not documented to the same weight detail, so treat any weight figure as varying by configuration and series. The product line traces to a 1999 development partnership and a 2000 worldwide distribution agreement between Caterpillar and Active Power, and configuration choices for this class are electrical rather than mechanical: breaker sizing, enclosure footprint, and an optional 24 VDC start module that signals a separate standby generator set during extended outages.
Across generations, Cat's flywheel UPS moved from fixed single-module CleanSource-based units toward the paralleled Z-series platform, where cabinet depth and height hold constant while width and module count scale with rated capacity; a 900-rated cabinet and a 1200-rated cabinet from the same family can look nearly identical from across the room, so always confirm the rating off the data plate rather than the footprint. Active Power, Caterpillar's original co-developer and supplier for this platform, was acquired by another power-systems manufacturer in 2016, which shapes parts and firmware support for older non-Z units today. In the used market, a UPS 900 is valued for data-center and critical-facility standby duty precisely because it carries no battery bank to age out or dispose of; resale value hinges on flywheel bearing and vacuum-pump service history rather than an hour meter, since those two items drive most of the unit's remaining service life.
Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.
Caterpillar UPS 900 specifications
Engine
| Power source | No onboard combustion engine. Battery-free flywheel energy storage system with IGBT-based bi-directional converter (static power-conditioning unit, not a rotary diesel/gas set). |
| Generator set interface | Optional 24 VDC generator-set start module supplies redundant starting power to a separate standby generator set for extended outages; that generator set is a distinct machine and its engine data is not part of this package. |
| Product family | UPS 900Z rating is one capacity point of the Cat UPS 1200Z multi-module system, built from paralleled power modules on a shared platform alongside the UPS 300Z, 600Z, and 1200Z ratings. |
Weights
| System weight (UPS 900Z) | 7144 kg (15,750 lb) |
| Shipping configuration | Shipped split into separate cabinets (input/output cabinet, system cabinet, and paralleled module units) due to overall size; per-piece breakdown for the 900Z rating specifically is not published. |
| Ground pressure | Not applicable — stationary indoor switchgear-style cabinet, not a mobile or tracked machine. |
Dimensions
| Depth (system) | 865 mm (34.0 in) |
| Width (system, UPS 900Z) | 5410 mm (213.0 in) |
| Height (system) | 2438 mm (96.0 in) |
| Footprint note | Marketed as the smallest footprint in its class; width scales with rated capacity across the 300Z/600Z/900Z/1200Z line, depth and height stay constant. |
Performance
| Rated output | 900 kVA / 720 kW at 480 VAC, 3-phase, 60 Hz |
| Input current | Nominal 898 A; maximum continuous 1200 A; maximum non-continuous 1260 A |
| Output current | 1084 A |
| System efficiency | 98% |
| Overload capability | Up to 105% continuous; 125% for 10 minutes; 150% for 2 minutes; 200% for 30 seconds; over 200% for 10 milliseconds |
| Ride-through time | 14 sec at 100% load; 19 sec at 75% load; 28 sec at 50% load; 52 sec at 25% load |
| Voltage regulation | Steady-state within ±1% of nominal for ±10% input variation; transient within ±1% inside 50 milliseconds of a 100% load step |
| Frequency slew rate | Adjustable from 0.2 Hz/sec to 3.0 Hz/sec |
Service capacities (summary)
| Fuel tank | Not applicable — no onboard engine or fuel system. |
| Hydraulic system | Not applicable — no hydraulic system fitted. |
| Engine oil | Not applicable — no onboard engine. |
| Cooling system | Forced-air cooling via redundant cooling fans; no liquid coolant capacity published. Rated heat rejection at full 900 kVA load is 62,975 Btu/hr (18.4 kW), used for HVAC sizing in place of a fluid capacity. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
UPS 900 fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | Not applicable | The UPS 900 (and UPS 900Z) is a Cat flywheel-based uninterruptible power supply, not an engine-driven generator set. It has no internal combustion engine, so no crankcase oil fill or filter exists on this unit. |
| Cooling system | Not a liquid-coolant system; no fill capacity documented | Heat from the motor/generator and power electronics is removed by forced-air fans through the flywheel housing and converter cabinet. No radiator, liquid coolant loop, or antifreeze/ELC spec applies. |
| Fuel tank | Not applicable | No fuel system is fitted. The unit runs off incoming utility power and stores ride-through energy mechanically in the flywheel rotor; there is no diesel tank. |
| Flywheel bearing / rotor support | Not a fluid-fill item — sealed rotor assembly, no liter capacity published | Cat flywheel UPS units in this size range (UPS 300 through UPS 900/900Z/1200Z) suspend the flywheel rotor on magnetic bearings inside a sealed, evacuated housing. This design does not take an oil or grease fill; periodic maintenance covers vacuum-level and bearing-wear checks under the dealer PM plan, not a fluid change. |
| Transmission / final drives / axles | Not applicable | Stationary power-conditioning equipment. No transmission, final drive, or axle/differential components are fitted. |
| Hydraulic system and tank | Not applicable | No hydraulic circuit exists on the UPS 900. |
| Grease points (general) | Not applicable — no external grease fittings documented for this model | No serviceable grease points are called out for the UPS 900 flywheel assembly; the rotor bearing design is sealed/magnetic rather than a grease-lubricated mechanical bearing. |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar UPS 900 maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 168 h |
|
| Every 2,160 h |
|
| Every 8,760 h |
|
| Every 43,800 h |
|
| Every 70,080 h |
|
| Every 131,400 h |
|
Servicing the UPS 900 beyond the schedule
Predictive Maintenance & Condition Monitoring
The UPS 900 carries no engine oil or hydraulic fluid to sample, so predictive care centers on the flywheel rotor and converter cabinet instead. Track vibration signatures on the flywheel module; a rising trend flags bearing wear or alignment drift well before an unplanned trip. Log vacuum-pump run time and enclosure vacuum level, since a slow leak raises windage drag on the rotor. Pull the fault-event history off the touch-screen quarterly and watch for repeat input-voltage or bypass events that hint at upstream problems.
Corrective & Common Repairs
Most trips trace to inverter or IGBT faults from overcurrent, overvoltage, or restricted converter cooling, not to the flywheel itself. The static bypass switch shifts connected load to raw utility power automatically when a fault is sensed, so confirm bypass operation cleanly transfers load before troubleshooting further. Check input contactors, terminal torque, and fuses first on an input-voltage or DC-bus-undervoltage alarm. Never probe the DC bus or inverter section by hand; stored capacitor energy remains even with input power removed. Route inverter faults to a certified Cat UPS technician.
Overhaul & Rebuild Points
Two wear items drive a UPS 900 overhaul: the sealed flywheel bearing assembly, typically due 5 to 8 years into service, and the vacuum pump maintaining the rotor's low-drag enclosure, typically due 8 to 10 years, both varying by duty cycle. Budget for controller-board battery and DC bus capacitor replacement around the 5-year mark. After bearing or pump work, have the dealer recommission the module and re-run a load-bank and ride-through verification test before returning it to service. Compare rebuild cost against a current-generation Z-series module on higher-cycle units.
Seasonal & Environment Servicing
The UPS 900 cools itself with redundant forced-air fans through the flywheel housing and converter cabinet; there is no liquid coolant loop to winterize. Keep the room's HVAC or CRAC capacity sized to the unit's roughly 18.4 kW (62,975 Btu/hr) heat rejection at full load, not to nameplate kVA. Clean or replace cabinet air filters every three months, more often in dusty environments, and keep intake and exhaust vents clear. A single fan failure should only trigger an alarm; running long on reduced airflow raises inverter temperature and IGBT fault risk.
UPS 900 common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 240-2526 | Filter Element-Encl Air | Air intake service | Check fitment → |
| 180-6264 | Filter Element As-Encl Air | Air intake service | Check fitment → |
| 180-6265 | Filter Element As-Encl Air | Air intake service | Check fitment → |
| 259-3199 | Board As-Circuit | Scheduled service item | Check fitment → |
| 180-6228 | Board As | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
UPS 900 fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| Input Voltage Fault (RMS out of tolerance) | Input AC voltage RMS value has drifted outside the programmed tolerance window, sampled every fifth cycle | Utility sag, brownout, or upstream distribution fault; loose or corroded input terminal connections | Check incoming utility voltage at the input terminals with a meter, verify input tolerance settings on the touch-screen, inspect input contactor and wiring |
| Input Voltage Transient Fault | Instantaneous input voltage sample deviates from the stored reference sine wave beyond the programmed limit, triggering a fast transfer to flywheel discharge | Lightning-induced surge, switching transient on the utility or generator feed, nearby large motor starting | Review event log timestamp against known site switching events, inspect surge protection devices upstream, confirm unit returned to normal operation after the transient cleared |
| DC Bus Undervoltage | DC bus voltage between the utility converter and flywheel converter has decayed below the preprogrammed threshold, indicating current cannot be drawn from the input even though input voltage reads nominal | Failed or fault-tripped upstream breaker, blown input fuse, high source impedance limiting available current | Verify upstream breaker and fuse status, measure available fault current at the input, inspect static disconnect switch SCRs |
| Input Frequency Fault | Measured input frequency deviates from nominal beyond the programmed band, checked every cycle against zero-crossing timing | Generator-set governor instability when running on standby power, weak or islanded utility grid segment | Check generator set governor and speed control if running on genset power, confirm utility frequency stability, review programmed frequency tolerance |
| On Bypass / Static Switch Active | Load has been transferred to the bypass path through the static disconnect switch and bypass contactor rather than being conditioned through the power stage | Manual bypass command, power-stage fault, or start-up sequence still in progress | Check touch-screen status page for the specific trip that forced bypass, confirm utility converter and flywheel converter status before returning to normal mode |
| Flywheel Undercharge / Low Speed | Flywheel speed has not reached the minimum charged threshold needed to support full ride-through, so available ride-through time is reduced | Recent discharge event without a completed recharge cycle, flywheel charging circuit fault, bearing drag | Allow the programmed recharge cycle to complete, verify recharge power setting, inspect flywheel converter and bearing system if charge time is abnormally long |
| Output Overload | Load current has exceeded the module's rated overload capability for the applicable time window | Connected load exceeds the module's 900 kVA/kW rating, non-linear load drawing high peak current, downstream fault | Check connected load against nameplate rating, inspect downstream distribution for a fault, reduce load or add parallel modules if sized correctly |
| Emergency Power Off (EPO) Activated | Local or remote EPO input has been triggered, immediately de-energizing the UPS output | Manual EPO pushbutton pressed, remote EPO contact closed by a building fire/safety system | Confirm no safety hazard exists, reset the EPO circuit per the unit's start-up procedure, have a trained Cat UPS technician verify the unit before re-energizing; note high voltage can remain inside the cabinet for several minutes after an EPO event |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
UPS 900 attachments & work tools
Not applicable — no work-tool attachments
The Cat UPS 900 (UPS 900Z) is a flywheel-based Uninterruptible Power Supply, a stationary electrical power-conditioning unit, not an engine-generator set or an earthmoving/construction machine. It has no boom, bucket, coupler, or hydraulic circuit and accepts no work tools or attachments.
Actual function and configuration
UPS 900Z stores kinetic energy in a flywheel to ride through utility power dips, surges, or outages, then hands load off to a standby generator set during an extended outage. Rated around 900 kW / 720 kVA at 480 V, with UL 1778, CSA, and CE listings; it is part of the same flywheel UPS lineup as the UPS 250, 300, 500, 600, and 750 units.
Integration options (not attachments)
Configuration choices for this class are electrical, not mechanical: breaker sizing (around 1600 A typical for the 900Z), enclosure/footprint options, and pairing with a separate diesel generator set for extended runtime. These are system-integration decisions made with the dealer, not field-installed work tools.
All UPS 900 assemblies by section
Every catalogued assembly group for the Caterpillar UPS 900. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Electrical And Starting System
228-4095 Adapter Gp-Communication -Ethernet Hub
| 22***95 | Adapter Group-Communication; -Ethernet Hub | 1 |
255-6648 Adapter Gp-Communication -Ethernet Hub
| 22***95 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 25***48 | Adapter Group-Communication; -Ethernet Hub | 1 |
248-8796 Adapter Gp-Communication -Ethernet
| 24***96 | Adapter Group-Communication; -Ethernet | 1 |
228-4094 Adapter Gp-Communication -Ethernet
| 22***94 | Adapter Group-Communication; -Ethernet | 1 |
| 22***05 | Adapter Group-Communication; -Ethernet Hub | 1 |
228-4090 Adapter Gp-Communication -Ethernet
| 22***90 | Adapter Group-Communication; -Ethernet | 1 |
| 22***95 | Adapter Group-Communication; -Ethernet Hub | 1 |
206-8863 Adapter Gp-Communication
| 20***63 | Adapter Group-Communication | 1 |
228-4089 Adapter Gp-Communication -Ethernet
| 22***89 | Adapter Group-Communication; -Ethernet | 1 |
| 22***05 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 24***09 | Transformer | 1 |
255-6649 Adapter Gp-Communication -Ethernet Hub
| 22***05 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 25***49 | Adapter Group-Communication; -Ethernet Hub | 1 |
228-4105 Adapter Gp-Communication -Ethernet Hub
| 22***95 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 22***05 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 26***28 | Cable; (6-Foot) | 1 |
255-6647 Adapter Gp-Communication -Ethernet Hub
| 22***05 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 24***09 | Transformer | 1 |
| 25***47 | Adapter Group-Communication; -Ethernet Hub | 1 |
255-6646 Adapter Gp-Communication -Ethernet Hub
| 24***09 | Transformer | 1 |
| 25***46 | Adapter Group-Communication; -Ethernet Hub | 1 |
| 30***89 | Adapter-Communication; (Ethernet Hub), Hexagon Head Cap Screw; M10 X 1.50 X 55 | 1 |
201-2605 Board As-Circuit -Fan Monitor
| 20***05 | Board As-Circuit; -Fan Monitor | 1 |
| 24***46 | Fuse; (3.15-Ampere) | 6 |
201-3177 Board As-Circuit -Power Distribution
| 18***55 | Fuse; (3-Ampere)(Output) | 5 |
| 20***67 | Fuse; (1-Ampere) | 5 |
| 20***69 | Fuse; (2-Ampere) | 1 |
201-2188 Board As-Circuit -System Input/Output
| 18***60 | Fuse; (2-Ampere) | 4 |
| 19***04 | Fuse; (3-Ampere) | 1 |
| 20***88 | Board As-Circuit; -System Input/Output | 1 |
180-6221 Board As-Circuit -Static Switch Interface
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 29***60 | Cable As | 1 |
242-7424 Board As-Circuit
| 24***24 | Board As-Circuit | 1 |
259-3199 Board As-Circuit -Emi Filter
| 24***51 | Capacitor | 6 |
| 25***99 | Board As-Circuit; -Emi Filter | 1 |
226-5485 Board As-Circuit -System I/O, Daughter
| 20***59 | Cable As | 1 |
| 20***60 | Cable As | 1 |
| 22***85 | Board As-Circuit; -System I/O, Daughter | 1 |
235-6333 Board As-Circuit -Electro Magnetic Interference
| 23***51 | Capacitor | 3 |
| 23***33 | Board As-Circuit; -Electro Magnetic Interference | 1 |
201-2706 Board As-Circuit -Power Distribution
| 18***54 | Fuse; (20-Ampere)(Output) | 2 |
| 19***99 | Fuse; (10-Ampere) | 4 |
| 20***67 | Fuse; (1-Ampere) | 2 |
226-5486 Board As-Circuit -System I/O, Daughter
| 20***26 | Resistor; -Termination | 1 |
| 22***86 | Board As-Circuit; -System I/O, Daughter | 1 |
| 23***95 | Connector | 1 |
243-2250 Board As-Circuit -Controller
| 23***29 | Battery; (Lithium) | 1 |
| 24***50 | Board As-Circuit; -Controller | 1 |
201-2604 Board As-Circuit -Ac Interface
| 18***60 | Fuse; (2-Ampere) | 1 |
| 20***04 | Board As-Circuit; -Ac Interface | 1 |
| 23***53 | Fuse; (5-Ampere) | 4 |
201-2190 Board As-Circuit -System Input/Output
| 18***60 | Fuse; (2-Ampere) | 2 |
| 20***73 | Fuse; (1-Ampere) | 1 |
| 20***90 | Board As-Circuit; -System Input/Output | 1 |
242-9378 Board As-Circuit -Fan Monitor
| 24***46 | Fuse; (3.15-Ampere) | 6 |
| 24***78 | Board As-Circuit; -Fan Monitor | 1 |
259-3201 Board As-Circuit -Interface
| 24***46 | Fuse; (3.15-Ampere) | 1 |
| 25***01 | Board As-Circuit; -Interface | 1 |
243-2251 Board As-Circuit -Controller
| 20***71 | Diskette | 1 |
| 20***76 | Diskette | 1 |
| 23***29 | Battery; (Lithium) | 1 |
206-5380 Box Gp-Connection
| 20***80 | Box Group-Connection | 1 |
| 23***95 | Parts Group-Miscellaneous; (Genset Start Driver) | 1 |
| 23***34 | Parts Group-Miscellaneous; (Genset Start Driver) | 1 |
204-0303 Box Gp-Connection
| 18***28 | Board As; (Emi Filter)(Flywheel) | 1 |
| 19***75 | Fuse; (1000-Ampere) | 1 |
| 19***78 | Capacitor; (50vdc, Scr Term) | 2 |
207-8642 Box Gp-Connection
| 20***42 | Box Group-Connection | 1 |
| 23***19 | Clamp | 1 |
| 23***20 | Diode | 2 |
208-2265 Box Gp-Junction
| 20***65 | Box Group-Junction | 1 |
205-3120 Bus Bar Gp
| 20***20 | Bus Bar Group | 1 |
203-4227 Cable As-Communication
| 20***27 | Cable As-Communication | 1 |
203-4296 Cable As-Communication
| 20***96 | Cable As-Communication | 1 |
203-4297 Cable As-Communication
| 20***97 | Cable As-Communication | 1 |
203-5546 Cable Gp
| 18***67 | Cable As-Ribbon; (Ac Interface) | 1 |
| 18***70 | Cable As-Ribbon; (System Input, Output 1) | 1 |
| 18***72 | Cable As-Ribbon; (Static Switch) | 1 |
249-5619 Circuit Breaker Gp -Generator Start Module
| 24***19 | Circuit Breaker Group; -Generator Start Module | 1 |
| 25***67 | Cable As | 1 |
| 29***26 | Circuit Breaker; (40-Ampere) | 1 |
249-5622 Circuit Breaker Gp -Generator Start, Dual
| 24***22 | Circuit Breaker Group; -Generator Start, Dual | 1 |
| 25***67 | Cable As | 2 |
| 29***26 | Circuit Breaker; (40-Ampere) | 2 |
249-5617 Circuit Breaker Gp -Generator Start Module
| 24***17 | Circuit Breaker Group; -Generator Start Module | 1 |
| 25***67 | Cable As | 1 |
| 29***26 | Circuit Breaker; (40-Ampere) | 1 |
249-5618 Circuit Breaker Gp -Generator Start, Dual
| 24***18 | Circuit Breaker Group; -Generator Start, Dual | 1 |
| 25***67 | Cable As | 2 |
| 29***59 | Kit-Circuit Breaker; (40-Ampere) | 2 |
249-5621 Circuit Breaker Gp -Generator Start Module
| 24***21 | Circuit Breaker Group; -Generator Start Module | 1 |
| 25***67 | Cable As | 1 |
| 29***26 | Circuit Breaker; (40-Ampere) | 1 |
249-5620 Circuit Breaker Gp -Generator Start, Dual
| 24***20 | Circuit Breaker Group; -Generator Start, Dual | 1 |
| 25***67 | Cable As | 2 |
| 29***26 | Circuit Breaker; (40-Ampere) | 2 |
226-4886 Conduit Gp
| 22***86 | Conduit Group | 1 |
| 27***83 | Cable; (24-Ga) | 2 |
226-4887 Conduit Gp
| 22***87 | Conduit Group | 1 |
| 27***83 | Cable; (24-Ga) | 2 |
| 27***84 | Cable; (24-Ga) | 1 |
207-4320 Conduit Gp
| 20***20 | Conduit Group | 1 |
| 22***86 | Conduit Group | 1 |
226-4883 Conduit Gp
| 22***83 | Conduit Group | 1 |
| 27***83 | Cable; (24-Ga) | 2 |
207-4323 Conduit Gp
| 20***23 | Conduit Group | 1 |
| 22***87 | Conduit Group | 1 |
207-4315 Conduit Gp
| 20***15 | Conduit Group | 1 |
| 22***83 | Conduit Group | 1 |
207-8641 Conduit Gp
| 20***41 | Conduit Group | 1 |
| 22***88 | Conduit Group; (Fourth Enclosure) | 1 |
203-4683 Conduit Gp
| 20***83 | Conduit Group, .. Cyl. | 1 |
203-5456 Connection Gp-Electrical
| 20***56 | Connection Group-Electrical | 1 |
| 23***75 | Harness As-Wiring; (Ground) | 1 |
| 25***84 | Panel Group-Electrical | 1 |
203-4292 Connector -Ethernet
| 20***92 | Connector; -Ethernet | 1 |
200-8330 Contact As-Electrical
| 20***30 | Contact As-Electrical | 1 |
| 24***25 | Contact | 1 |
| 24***26 | Bracket | 1 |
228-4112 Conversion Gp-Communication
| 22***12 | Conversion Group-Communication | 1 |
226-5484 Conversion Gp-Communication
| 22***84 | Conversion Group-Communication | 1 |
228-4114 Conversion Gp-Communication
| 22***14 | Conversion Group-Communication | 1 |
229-2890 Conversion Gp-Communication -Modbus Functionality
| 22***90 | Conversion Group-Communication; -Modbus Functionality | 1 |
229-2889 Conversion Gp-Communication -Protocol Functionality
| 22***89 | Conversion Group-Communication; -Protocol Functionality | 1 |
203-3976 Diskette
| 20***76 | Diskette | 1 |
203-3971 Diskette
| 20***71 | Diskette | 1 |
243-9258 Fuse Gp
| 18***54 | Fuse; (20-Ampere)(Output) | 1 |
| 19***99 | Fuse; (10-Ampere) | 2 |
| 23***55 | Fuse; (7-Ampere) | 2 |
180-6295 Ground Gp-Electrical -Electrical Drain
| 18***95 | Ground Group-Electrical; -Electrical Drain | 1 |
| 20***30 | Contact As-Electrical | 1 |
| 23***35 | Seal-O-Ring | 1 |
203-4293 Installation Gp-Adapter
| 20***93 | Installation Group-Adapter | 1 |
| 24***09 | Transformer | 1 |
| 30***89 | Adapter-Communication; (Ethernet Hub), Hexagon Head Cap Screw; M10 X 1.50 X 55 | 1 |
293-5402 Kit-Switch -Emergency Power Off
| 28***13 | Switch As-Push Button; (Emergency Power Off) | 1 |
| 29***02 | Kit-Switch; -Emergency Power Off | 1 |
293-5403 Kit-Switch -Emergency Power Off
| 28***13 | Switch As-Push Button; (Emergency Power Off) | 1 |
| 29***03 | Kit-Switch; -Emergency Power Off | 1 |
203-5458 Panel Gp-Circuit Breaker
| 20***31 | Cable As; (Thyristor) | 1 |
| 20***90 | Fuse; (600-Ampere) | 1 |
| 20***71 | Diskette | 1 |
207-8726 Resistor -Termination
| 20***26 | Resistor; -Termination | 1 |
222-5438 Resistor As
| 22***38 | Resistor As | 1 |
250-5523 Switch As -Static Bypass
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 20***39 | Cable As; (Static Switch Thermistor) | 1 |
| 20***89 | Suppressor As-Arc; (Static Switch) | 3 |
251-4572 Switch As -Static Bypass
| 20***77 | Fuse; (200-Ampere) | 3 |
| 20***31 | Cable As; (Thyristor) | 1 |
| 20***06 | Board As; (Bypass Cabinet Control) | 2 |
203-5547 Switch As -Emergency Module Off
| 20***06 | Cable As; (System Cabinet Emo) | 1 |
| 20***47 | Switch As; -Emergency Module Off | 1 |
| 22***41 | Cover; (Switch) | 1 |
259-3200 Switch As -Static Bypass
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 20***39 | Cable As; (Static Switch Thermistor) | 1 |
| 24***22 | Thyristor | 3 |
199-5096 Switch As -Static Bypass-Static
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 19***96 | Switch As; -Static Bypass-Static | 1 |
| 20***61 | Switch; (Static) | 1 |
294-7319 Switch As-Push Button -Emergency Power Off
| 28***13 | Switch As-Push Button; (Emergency Power Off) | 1 |
| 29***19 | Switch As-Push Button; -Emergency Power Off | 1 |
294-5574 Switch As-Push Button -Emergency Power Off
| 28***13 | Switch As-Push Button; (Emergency Power Off) | 1 |
| 29***74 | Switch As-Push Button; -Emergency Power Off | 1 |
203-4324 Switch Gp-Disconnect
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 6 |
| 20***24 | Switch Group-Disconnect | 1 |
203-4323 Switch Gp-Disconnect
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 4 |
| 20***23 | Switch Group-Disconnect | 1 |
203-4325 Switch Gp-Disconnect
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 8 |
| 20***25 | Switch Group-Disconnect | 1 |
307-6546 Switch Gp-Disconnect
| 24***07 | Handle | 1 |
| 25***57 | Shaft | 1 |
| 30***46 | Switch Group-Disconnect | 1 |
183-9379 Switch Gp-Remote
| 18***79 | Switch Group-Remote | 1 |
| 25***72 | Switch-Push Button; (Remote Emergency Stop) | 1 |
254-9922 Transformer As
| 24***23 | Transformer | 1 |
| 25***22 | Transformer As | 1 |
261-1004 Varistor As
| 26***04 | Varistor As | 1 |
Enclosures, Guards And Bases
199-5106 Fan As-Circulating
| 19***06 | Fan As-Circulating | 1 |
| 20***61 | Switch-Limit; (Fan) | 1 |
| 26***63 | Impeller; (230-Volt) | 1 |
203-1007 Fan Gp-Circulating
| 19***25 | Damper As; (Fan) | 1 |
| 19***06 | Fan As-Circulating | 1 |
| 20***29 | Screen; (Fan) | 1 |
203-5451 Fastener Gp-Enclosure
203-5453 Fastener Gp-Enclosure -Template
| 20***53 | Fastener Group-Enclosure; -Template | 1 |
203-5452 Fastener Gp-Enclosure
| 20***52 | Fastener Group-Enclosure | 1 |
258-8806 Handle As
| 24***13 | Handle; (Maintenance Bypass) | 3 |
| 25***06 | Handle As | 1 |
258-8805 Handle As
| 24***13 | Handle; (Maintenance Bypass) | 3 |
| 25***05 | Handle As | 1 |
203-4322 Kickplate
| 20***22 | Kickplate | 1 |
203-4319 Kickplate
| 20***19 | Kickplate | 1 |
203-4318 Kickplate
| 20***18 | Kickplate | 1 |
203-4320 Kickplate
| 20***20 | Kickplate | 1 |
203-4321 Kickplate
| 20***21 | Kickplate | 1 |
206-8862 Kickplate
| 20***62 | Kickplate | 1 |
Operator Station
201-7672 Control As-Synchronizing
| 20***63 | Fuse; (1.5-Ampere) | 3 |
| 20***72 | Control As-Synchronizing | 1 |
| 24***20 | Block-Fuse; (3-Pole) | 1 |
130-3349 Control Gp-Alarm Module
| 13***49 | Control Group-Alarm Module | 1 |
| 3J***54 | Packing,Preformed Part Of Kit P/N 5r***27 | 1 |
| 9S***02 | Plug-O-Ring; (Straight Thread O-Ring) | 1 |
207-8751 Conversion Gp-Load Cell
| 18***35 | Bearing As; (Upper Flywheel) | 1 |
| 20***51 | Conversion Group-Load Cell | 1 |
| 22***42 | Seal-O-Ring | 1 |
250-5511 Filter As-Electrical -Ac
| 24***42 | Capacitor; (600-Volt) | 12 |
| 25***11 | Filter As-Electrical; -Ac | 1 |
202-7510 Filter As-Electrical -Phase C
| 18***43 | Resistor As; (Bleeder) | 4 |
| 20***46 | Capacitor | 16 |
| 20***10 | Filter As-Electrical; -Phase C | 1 |
227-4834 Filter As-Electrical
| 20***28 | Capacitor | 12 |
| 22***34 | Filter As-Electrical | 1 |
222-5440 Filter As-Electrical
| 22***38 | Resistor As | 6 |
| 22***39 | Capacitor; (600vac) | 12 |
| 22***40 | Filter As-Electrical | 1 |
202-7507 Filter As-Electrical -Phase A
| 18***43 | Resistor As; (Bleeder) | 4 |
| 20***46 | Capacitor | 16 |
| 20***07 | Filter As-Electrical; -Phase A | 1 |
202-7508 Filter As-Electrical -Phase B
| 18***43 | Resistor As; (Bleeder) | 4 |
| 20***46 | Capacitor | 16 |
| 20***08 | Filter As-Electrical; -Phase B | 1 |
259-3197 Filter As-Electrical -Ac
| 24***42 | Capacitor; (600-Volt) | 6 |
| 25***97 | Filter As-Electrical; -Ac | 1 |
| 25***98 | Cable | 2 |
202-9760 Flywheel Gp-Power Supply
| 18***95 | Ground Group-Electrical; -Electrical Drain | 1 |
| 20***52 | . Coller, Sensor-Vacuum; (Flywheel Bearing) | 1 |
| 20***60 | Flywheel Group-Power Supply | 1 |
244-1409 Flywheel Gp-Power Supply
| 22***41 | Screw; (5/16-18x0.875-In) | 16 |
| 22***42 | Seal-O-Ring | 1 |
| 22***90 | Kit-Shim; (Includes 5-Shims)(Lower Bearing) | 1 |
227-7457 Flywheel Gp-Power Supply
| 19***80 | Kit-Shim; (Includes 15-Shims)(Upper Bearing) | 1 |
| 20***52 | . Coller, Sensor-Vacuum; (Flywheel Bearing) | 1 |
| 22***41 | Screw; (5/16-18x0.875-In) | 16 |
202-7596 Module As -System User Interface
| 18***86 | Cable As-Ribbon; (User Interface Lcd) | 1 |
| 20***31 | Switch-Push Button; (Emergency Module Off) | 1 |
| 20***33 | Switch; (Key)(Emergency Stop) | 1 |
201-2679 Module As -Systems User Interface
| 20***31 | Switch-Push Button; (Emergency Module Off) | 1 |
| 20***32 | Switch-Push Button; (Horn Silence) | 1 |
| 20***33 | Switch; (Key)(Emergency Stop) | 1 |
259-3196 Module As -Utility
| 24***67 | Capacitor; (1200-Volt) | 3 |
| 24***68 | Capacitor; (500-Volt) | 6 |
| 25***96 | Module As; -Utility | 1 |
259-3195 Module As -Controller
| 24***67 | Capacitor; (1200-Volt) | 3 |
| 24***68 | Capacitor; (500-Volt) | 6 |
| 25***95 | Module As; -Controller | 1 |
250-5510 Module As -Field Coil Driver
| 25***10 | Module As; -Field Coil Driver | 1 |
250-7959 Module Gp-Alarm
| 13***49 | Control Group-Alarm Module | 1 |
| 19***39 | Film-Control Panel | 1 |
| 24***68 | Switch-Push Button; (Alarm Test) | 1 |
200-6276 Module Gp-Converter -Lh
| 20***76 | Module Group-Converter; -Lh | 1 |
| 20***90 | Board As; (Skiip Interface) | 1 |
| 23***64 | Module-Converter; (Lh)(Left Skiip) | 1 |
200-6274 Module Gp-Converter -Rh
| 20***74 | Module Group-Converter; -Rh | 1 |
| 20***90 | Board As; (Skiip Interface) | 1 |
| 32***95 | Board-Electronic; (Right Skiip) | 1 |
209-5506 Module Gp-Maintenance Bypass
| 20***06 | Module Group-Maintenance Bypass | 1 |
| 24***07 | Handle | 3 |
| 25***18 | Panel Group-Electrical | 1 |
203-2745 Module Gp-Maintenance Bypass
| 20***45 | Module Group-Maintenance Bypass | 1 |
| 24***07 | Handle | 3 |
| 25***18 | Panel Group-Electrical | 1 |
203-2747 Module Gp-Static Bypass
| 20***77 | Fuse; (200-Ampere) | 3 |
| 20***38 | Module-Thyristor | 1 |
| 20***69 | Contactor | 1 |
203-5446 Module Gp-Static Bypass
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 20***36 | Thyristor | 3 |
| 20***90 | Fuse; (600-Ampere) | 3 |
206-8857 Module-External Modem -Interface
| 20***57 | Module-External Modem; -Interface | 1 |
206-8861 Module-External Modem
| 20***88 | Board As-Circuit; -System Input/Output | 1 |
| 20***27 | Cable As-Communication | 1 |
| 20***61 | Module-External Modem | 1 |
203-3974 Module-External Modem -Interface
| 20***74 | Module-External Modem; -Interface | 1 |
| 24***09 | Transformer | 1 |
263-3455 Module-External Modem
| 24***09 | Transformer | 1 |
| 26***55 | Module-External Modem | 1 |
206-8859 Module-External Modem -Interface
| 20***59 | Module-External Modem; -Interface | 1 |
263-3457 Module-External Modem
| 24***09 | Transformer | 1 |
| 26***57 | Module-External Modem | 1 |
206-8858 Module-External Modem -Interface
| 20***58 | Module-External Modem; -Interface | 1 |
263-3458 Module-External Modem
| 24***09 | Transformer | 1 |
| 26***58 | Module-External Modem | 1 |
206-8860 Module-External Modem -Interface
| 20***88 | Board As-Circuit; -System Input/Output | 1 |
| 20***60 | Module-External Modem; -Interface | 1 |
| 24***09 | Transformer | 1 |
263-3721 Module-External Modem
| 24***09 | Transformer | 1 |
| 26***21 | Module-External Modem | 1 |
203-3975 Module-External Modem -Interface
| 20***75 | Module-External Modem; -Interface | 1 |
| 24***09 | Transformer | 1 |
203-4295 Module-External Modem -Interface
| 20***95 | Module-External Modem; -Interface | 1 |
| 24***09 | Transformer | 1 |
203-4222 Module-External Modem -Interface
| 20***22 | Module-External Modem; -Interface | 1 |
| 24***09 | Transformer | 1 |
203-4221 Module-External Modem -Interface
| 20***21 | Module-External Modem; -Interface | 1 |
263-3454 Module-Internal Modem
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
| 26***54 | Module-Internal Modem | 1 |
203-4224 Module-Internal Modem
| 20***24 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
263-3459 Module-Internal Modem
| 20***26 | Cable As-Communication | 1 |
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
203-4225 Module-Internal Modem
| 20***25 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
206-8855 Module-Internal Modem
| 20***55 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
263-3453 Module-Internal Modem
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
| 26***53 | Module-Internal Modem | 1 |
206-8856 Module-Internal Modem
| 20***56 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
206-8854 Module-Internal Modem
| 20***54 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
206-8852 Module-Internal Modem
| 20***52 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
263-3330 Module-Internal Modem
| 20***26 | Cable As-Communication | 1 |
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
203-3972 Module-Internal Modem
| 20***72 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***55 | Modem As | 1 |
203-3973 Module-Internal Modem
| 20***73 | Module-Internal Modem | 1 |
| 24***09 | Transformer | 1 |
| 24***54 | Modem As | 1 |
236-4956 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 2 |
| 23***50 | Bracket | 4 |
| 23***56 | Panel Ar-Control | 1 |
236-4957 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***50 | Bracket | 2 |
| 23***57 | Panel Ar-Control; -Generator Start, Single | 1 |
236-4955 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***50 | Bracket | 2 |
| 23***55 | Panel Ar-Control | 1 |
236-4958 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 2 |
| 23***50 | Bracket | 4 |
| 23***58 | Panel Ar-Control; -Generator Start, Dual | 1 |
252-4932 Panel As-Electrical -Lh
| 20***77 | Fuse; (200-Ampere) | 1 |
| 20***69 | Indicator; (Fuse) | 1 |
| 22***07 | Board As-Circuit; (Zig Zag Controller) | 1 |
240-2510 Panel As-Electrical -Power Supply
| 20***77 | Fuse; (200-Ampere) | 1 |
| 20***69 | Contactor | 1 |
| 20***69 | Indicator; (Fuse) | 1 |
256-3008 Panel As-Electrical -Static Bypass
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 20***90 | Fuse; (600-Ampere) | 3 |
| 20***69 | Indicator; (Fuse) | 3 |
203-4299 Panel Gp-Annunciator
| 20***59 | Cable As | 1 |
| 20***60 | Cable As | 1 |
| 20***99 | Panel Group-Annunciator | 1 |
230-7666 Panel Gp-Annunciator
| 23***66 | Panel Group-Annunciator | 1 |
| 25***59 | Module Group-Alarm | 1 |
233-7648 Panel Gp-Control
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***53 | Capacitor | 2 |
| 23***57 | Fuse; (0.25-Ampere) | 2 |
203-5455 Panel Gp-Electrical
| 20***55 | Panel Group-Electrical | 1 |
| 23***76 | Panel Group-Electrical | 1 |
250-5521 Panel Gp-Electrical
| 20***32 | Power Supply; (350-Watt) | 2 |
| 25***21 | Panel Group-Electrical | 1 |
| 25***07 | Capacitor | 2 |
227-4833 Panel Gp-Electrical
| 22***33 | Panel Group-Electrical | 1 |
| 22***34 | Filter As-Electrical | 1 |
| 22***35 | Resistor | 2 |
236-4176 Panel Gp-Electrical
| 23***32 | Relay; (1.8-Ampere, 3-Pole)(Overload) | 1 |
| 23***34 | Block-Terminal | 1 |
| 23***72 | Transformer; (10-Ampere) | 1 |
258-9961 Panel Gp-Electrical
| 24***10 | Panel As-Electrical; -Power Supply | 1 |
| 25***22 | Transformer As | 1 |
| 25***61 | Panel Group-Electrical | 1 |
202-7511 Panel Gp-Electrical
| 18***09 | Resistor; (13-Watt) | 12 |
| 18***22 | Board As; (Dc Interface) | 1 |
| 20***28 | Capacitor | 12 |
258-8802 Panel Gp-Electrical
| 25***02 | Panel Group-Electrical | 1 |
| 25***03 | Panel Group-Electrical; -Disconnect Switch | 1 |
| 25***06 | Handle As | 1 |
251-3584 Panel Gp-Electrical
| 23***32 | Relay; (1.8-Ampere, 3-Pole)(Overload) | 1 |
| 23***34 | Block-Terminal | 1 |
| 23***72 | Transformer; (10-Ampere) | 1 |
256-7282 Panel Gp-Electrical
| 25***82 | Panel Group-Electrical | 1 |
| 25***03 | Panel Group-Electrical; -Disconnect Switch | 1 |
| 25***05 | Handle As | 1 |
9e-5987 Panel Gp-Electrical
| 24***07 | Handle | 3 |
| 24***81 | Holder; (Fuse) | 4 |
| 25***58 | Switch As; (400-Ampere, 3-Phase, 4-Pole) | 3 |
258-8803 Panel Gp-Electrical -Disconnect Switch
| 24***12 | Switch-Disconnect; (Maintenance Bypass) | 3 |
| 24***14 | Shaft | 1 |
| 24***15 | Shaft | 2 |
251-9618 Panel Gp-Electrical
| 20***82 | Switch Group-Disconnect | 3 |
| 24***81 | Holder; (Fuse) | 3 |
| 25***57 | Shaft | 2 |
203-5457 Panel Gp-Electrical
| 20***57 | Panel Group-Electrical | 1 |
| 25***32 | Panel As-Electrical; -Lh | 1 |
| 25***22 | Transformer As | 1 |
259-3194 Panel Gp-Power Supply
| 18***50 | Fuse; (300-Ampere)(Utility) | 3 |
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
203-4373 Panel Gp-Power Supply
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 4 |
| 20***73 | Panel Group-Power Supply | 1 |
203-3912 Panel Gp-Power Supply
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***89 | Contactor | 2 |
251-0043 Panel Gp-Power Supply
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
| 20***52 | . Coller, Sensor-Vacuum; (Flywheel Bearing) | 1 |
203-4375 Panel Gp-Power Supply
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 8 |
| 20***75 | Panel Group-Power Supply | 1 |
266-5936 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***69 | Circuit Breaker As; (1200-Ampere) | 1 |
203-4384 Panel Gp-Power Supply
| 18***55 | Fuse; (3-Ampere)(Output) | 3 |
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
202-7658 Panel Gp-Power Supply
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***89 | Contactor | 2 |
230-7667 Panel Gp-Power Supply
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***89 | Contactor | 2 |
251-2175 Panel Gp-Power Supply
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
| 20***74 | Module Group-Converter; -Rh | 3 |
248-5467 Panel Gp-Power Supply
| 24***23 | Transformer | 1 |
| 24***11 | Handle; (Door) | 1 |
| 24***24 | Ring | 1 |
237-0175 Panel Gp-Power Supply
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***97 | Fuse; (3-Ampere) | 2 |
258-9866 Panel Gp-Power Supply
| 24***11 | Capacitor; (Oil-Filled) | 1 |
| 24***23 | Transformer | 1 |
| 24***24 | Contactor | 1 |
203-4374 Panel Gp-Power Supply
| 20***07 | Varistor As; (Surge Protector)(Ac) | 2 |
| 20***08 | Disconnect; (400-Ampere, 3-Pole) | 6 |
| 20***74 | Panel Group-Power Supply | 1 |
250-3438 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***61 | Panel As; (Input/Output) | 1 |
202-7660 Panel Gp-Power Supply
| 20***40 | Door-Front | 1 |
| 20***48 | Panel-Access; (Top) | 1 |
| 20***80 | Panel As-Side | 1 |
203-4382 Panel Gp-Power Supply
| 18***55 | Fuse; (3-Ampere)(Output) | 3 |
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
203-4383 Panel Gp-Power Supply
| 18***55 | Fuse; (3-Ampere)(Output) | 3 |
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
250-6034 Panel Gp-Power Supply
| 25***34 | Panel Group-Power Supply | 1 |
| 25***59 | Module Group-Alarm | 1 |
248-5465 Panel Gp-Power Supply
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
| 20***74 | Module Group-Converter; -Rh | 3 |
248-5466 Panel Gp-Power Supply
| 20***48 | Panel-Access; (Top) | 1 |
| 24***11 | Capacitor; (Oil-Filled) | 1 |
| 24***11 | Handle; (Door) | 1 |
266-5937 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***69 | Circuit Breaker As; (1200-Ampere) | 1 |
202-7659 Panel Gp-Power Supply
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***97 | Fuse; (3-Ampere) | 4 |
319-4158 Panel Gp-Power Supply
| 18***46 | Kit-Pump; (Vacuum) | 1 |
| 19***06 | Fan As-Circulating | 6 |
| 20***65 | Fuse; (4-Ampere) | 2 |
255-0608 Panel Gp-Power Supply
| 25***08 | Panel Group-Power Supply | 1 |
| 25***66 | Panel Group-Power Supply | 1 |
| 25***94 | Panel Group-Power Supply | 1 |
252-0570 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 4 |
| 20***63 | Fuse; (1.5-Ampere) | 2 |
| 20***49 | Power Supply; (150-Watt) | 2 |
252-5011 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***69 | Circuit Breaker As; (1200-Ampere) | 2 |
203-4385 Panel Gp-Power Supply
| 18***55 | Fuse; (3-Ampere)(Output) | 3 |
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
251-2177 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***61 | Panel As; (Input/Output) | 1 |
255-0609 Panel Gp-Power Supply
| 25***09 | Panel Group-Power Supply | 1 |
| 25***65 | Panel Group-Power Supply | 1 |
| 25***94 | Panel Group-Power Supply | 1 |
250-3437 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***69 | Circuit Breaker As; (1200-Ampere) | 1 |
250-3439 Panel Gp-Power Supply
| 19***97 | Fuse; (3-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 3 |
| 20***69 | Circuit Breaker As; (1200-Ampere) | 2 |
258-9865 Panel Gp-Power Supply
| 20***48 | Panel-Access; (Top) | 1 |
| 24***11 | Capacitor; (Oil-Filled) | 1 |
| 24***24 | Contactor | 1 |
202-7643 Power Gp-Uninterruptible
| 20***43 | . Gear; Internal, Power Group-Uninterruptible | 1 |
| 20***60 | Panel Group-Power Supply | 1 |
| 20***12 | Panel Group-Power Supply | 1 |
204-0304 Power Gp-Uninterruptible
| 18***64 | Filter Element As-Encl Air | 1 |
| 18***65 | Filter Element As-Encl Air | 1 |
| 19***89 | Contactor | 2 |
202-7648 Power Gp-Uninterruptible
| 20***58 | Film Group | 1 |
| 20***48 | Power Group-Uninterruptible | 1 |
| 20***58 | Panel Group-Power Supply | 2 |
202-7646 Power Gp-Uninterruptible
| 20***59 | Film Group | 1 |
| 20***46 | Power Group-Uninterruptible | 1 |
| 20***58 | Panel Group-Power Supply | 1 |
202-7649 Power Gp-Uninterruptible
| 20***57 | Film Group | 1 |
| 20***49 | Power Group-Uninterruptible | 1 |
| 20***58 | Panel Group-Power Supply | 3 |
202-7645 Power Gp-Uninterruptible
| 20***59 | Film Group | 1 |
| 20***45 | Power Group-Uninterruptible | 1 |
| 20***58 | Panel Group-Power Supply | 1 |
202-7650 Power Gp-Uninterruptible
| 20***57 | Film Group | 1 |
| 20***50 | Power Group-Uninterruptible | 1 |
| 20***58 | Panel Group-Power Supply | 3 |
202-7647 Power Gp-Uninterruptible
| 20***58 | Film Group | 1 |
| 20***47 | Power Group-Uninterruptible, .. Axle | 1 |
| 20***58 | Panel Group-Power Supply | 2 |
202-7644 Power Gp-Uninterruptible
| 20***44 | Power Group-Uninterruptible | 1 |
| 20***60 | Panel Group-Power Supply | 1 |
| 20***12 | Panel Group-Power Supply | 1 |
234-7687 Power Supply Gp
| 20***32 | Power Supply; (350-Watt) | 1 |
| 23***87 | Power Supply Group | 1 |
| 23***88 | Capacitor; (450-Volt) | 2 |
231-3504 Pump & Motor Gp-Vacuum
| 18***46 | Kit-Pump; (Vacuum) | 1 |
| 23***04 | Pump & Motor Group-Vacuum | 1 |
| 24***65 | Ring | 4 |
Service Equipment And Supplies
200-1859 Film Gp
| 13***39 | Film-Stripe; (Red)(625cm) | 0 |
| 20***44 | Film; (Electric Power) | 1 |
| 20***59 | Film Group | 1 |
200-1845 Film Gp
| 12***94 | Film-Stripe; (Black)(56cm) | 0 |
| 20***24 | Film; (Electric Power) | 1 |
| 20***25 | Film-Stripe; (Red)(44cm) | 0 |
200-1857 Film Gp
| 13***39 | Film-Stripe; (Red)(625cm) | 0 |
| 20***44 | Film; (Electric Power) | 1 |
| 20***57 | Film Group | 1 |
200-1858 Film Gp
| 13***39 | Film-Stripe; (Red)(625cm) | 0 |
| 20***44 | Film; (Electric Power) | 1 |
| 20***58 | Film Group | 1 |
203-4716 Film Gp
| 20***16 | Film Group | 1 |
| 22***51 | Film; (Cat) | 1 |
| 22***52 | Film; (Electric Power) | 1 |
200-1856 Film Gp
| 13***39 | Film-Stripe; (Red)(625cm) | 0 |
| 20***44 | Film; (Electric Power) | 1 |
| 20***56 | Film Group | 1 |
245-0559 Kit-Sensor & Mounting
| 24***59 | Kit-Sensor & Mounting | 1 |
230-4162 Parts Gp-Miscellaneous
| 18***55 | Fuse; (3-Ampere)(Output) | 10 |
| 18***60 | Fuse; (2-Ampere) | 10 |
| 18***61 | Fuse; (5-Ampere) | 10 |
261-8122 Parts Gp-Miscellaneous
| 18***21 | Board As-Circuit; -Static Switch Interface | 1 |
| 18***50 | Fuse; (300-Ampere)(Utility) | 3 |
| 18***54 | Fuse; (20-Ampere)(Output) | 2 |
250-6033 Parts Gp-Miscellaneous
| 18***54 | Fuse; (20-Ampere)(Output) | 5 |
| 18***55 | Fuse; (3-Ampere)(Output) | 5 |
| 18***60 | Fuse; (2-Ampere) | 10 |
203-5447 Parts Gp-Miscellaneous
| 18***22 | Board As; (Dc Interface) | 1 |
| 18***49 | Fuse; (250-Ampere)(Flywheel) | 3 |
| 18***54 | Fuse; (20-Ampere)(Output) | 5 |
203-5448 Parts Gp-Miscellaneous
| 18***55 | Fuse; (3-Ampere)(Output) | 10 |
| 18***60 | Fuse; (2-Ampere) | 10 |
| 18***61 | Fuse; (5-Ampere) | 10 |
250-6032 Parts Gp-Miscellaneous
| 18***55 | Fuse; (3-Ampere)(Output) | 10 |
| 18***60 | Fuse; (2-Ampere) | 10 |
| 19***04 | Fuse; (3-Ampere) | 10 |
230-4161 Parts Gp-Miscellaneous
| 18***54 | Fuse; (20-Ampere)(Output) | 5 |
| 18***55 | Fuse; (3-Ampere)(Output) | 5 |
| 18***60 | Fuse; (2-Ampere) | 10 |
UPS 900 serial number reference
On a Cat flywheel UPS the rating/PIN plate is mounted on the exterior of the power-supply enclosure (front or side access panel, near the main breaker or control touchscreen), not on an engine block, since the module has no engine. Read the first three characters of the serial number as the model/build-series prefix (e.g. CRY) and the digits that follow as the sequential unit number within that run, e.g. CRY00001.
| Prefix | Identifies | Notes |
|---|---|---|
| CRY | UPS 900 single-module flywheel UPS - dedicated serial prefix | Flywheel-based uninterruptible power supply, not an engine-generator set - a kinetic-energy (flywheel) module with an IGBT bi-directional converter, no internal combustion engine fitted. CRY (breakpoint CRY00001-UP) is the prefix tied to the UPS 900 on its own dedicated parts-catalog model listing, separate from the shared UPS250-UPS900 combined electrical-schematic document that references UPS 900 only as one member of a wider group. Exact kVA/kW rating not confirmed in model-specific documentation for this single-module unit - the family naming convention (UPS 300, UPS 600, UPS 750 rated near their namesake kVA figures) suggests a class near 900 kVA, but confirm the figure with your dealer before quoting it. |
Frequently asked questions
What engine does the Cat UPS 900 use?
None. The UPS 900 is a battery-free flywheel-based static UPS, not an engine-generator set. It stores ride-through energy kinetically in a spinning flywheel rotor and conditions power through an IGBT-based bi-directional converter; there is no onboard combustion engine. A separate standby generator set can be wired to the unit's start module for extended outages, but that generator is a distinct machine, not part of the UPS package.
What does a Cat UPS 900 weigh?
The UPS 900Z system weighs about 7144 kg (15,750 lb), per Cat's factory spec sheet for the 900 kVA / 720 kW rating within the 300Z/600Z/900Z/1200Z multi-module platform. It ships split across separate input/output, system, and module cabinets rather than as one piece; exact per-cabinet weights are not published for this rating point, and earlier non-Z units may differ.
What replaced the Cat UPS 900?
Cat's flywheel UPS lineup moved to a paralleled-module Z-series platform, and the 900 kVA rating point continues today as the UPS 900Z, built on the same shared cabinet platform as the 300Z, 600Z, and 1200Z ratings. There is no separate next-generation model number; owners of an older non-Z UPS 900 should confirm with their dealer whether their unit qualifies for a Z-series upgrade path or current parts support.
What UPS 900 owners discuss
Does the Cat UPS 900 have its own diesel engine driving a generator?
No. Despite the naming, this is a flywheel-based static UPS, not an engine-generator set. There is no onboard combustion engine and no fuel system fitted. A spinning flywheel stores kinetic energy and an IGBT-based bi-directional converter turns that into ride-through power during a utility dip or outage. Some site asset registers and spec sheets shorten the product family name in a way that reads like a genset line, which is the usual source of the mix-up. If a standby generator is on site, it is a separate machine, wired to receive a start signal from the UPS cabinet, not built into it.
What wears out on a UPS 900 over years of service, the way undercarriage wears on a track machine?
The flywheel bearings and the vacuum pump are the parts that see duty-cycle wear. Sealed flywheel bearings commonly run 5 to 8 years before replacement, varies by configuration/series and duty cycle, and the vacuum pump that maintains the flywheel's low-drag enclosure typically lasts 8 to 10 years. Facilities that track vibration signatures on the flywheel module get the earliest warning: a rising trend usually means bearing wear or alignment drift well before it becomes an unplanned trip. Annual preventive maintenance normally covers the vacuum pump and lubrication check.
How does the ride-through and overload rating behave under real load on the 900 kVA size?
Overload capability is rated at 105% continuous, 125% for 10 minutes, 150% for 2 minutes, 200% for 30 seconds, and over 200% for 10 milliseconds. Ride-through time depends heavily on how loaded the unit is: roughly 14 seconds at full load, stretching out to around 52 seconds at 25% load. The flywheel is sized to bridge the gap until a standby generator comes online, not to carry a facility through an extended outage on its own. Because of that, the generator's start-signal wiring and its own starting reliability matter just as much as the UPS hardware for actual outage coverage.
What electrical faults show up most often on this class of flywheel UPS?
Inverter or IGBT faults tied to overcurrent, overvoltage, or restricted cooling airflow are the fault type discussed most across flywheel and static UPS platforms in this power class. The static bypass switch is designed to shift the load straight to raw utility power automatically the moment an internal fault is sensed, so the connected load usually keeps running while a technician responds. Do not probe the inverter or DC bus section with a hand meter; there is stored capacitor energy and high DC bus voltage inside that cabinet even with input power removed. Any inverter fault, IGBT fault, or repeated bypass event should have your dealer or a qualified service technician verify and clear before returning the unit to normal mode.
How much heat does a UPS 900 put into the room, and does it need extra cooling?
Cooling is forced-air through redundant fans; there is no liquid coolant loop to size. At full 900 kVA / 720 kW load the rated heat rejection is about 18.4 kW (62,975 Btu/hr), and that is the number to size room HVAC or CRAC capacity against rather than the nameplate kVA, since actual heat output runs well under apparent power. Fan redundancy generally means one fan failure raises an alarm rather than causing an immediate trip, but running for long on reduced airflow pushes inverter temperatures up and increases the odds of an IGBT fault. Treat a cooling or fan alarm on the operator panel as something to have your dealer verify rather than something to run through.
Is a UPS 900 the same cabinet as a UPS 1200, just relabeled?
The 900 kVA rating point is built on the same paralleled-module platform as the 300, 600, and 1200 Z-series ratings in this line. Cabinet depth and height stay constant across the family; only cabinet width and module count scale up with rated capacity, so a 900-rated cabinet and a 1200-rated cabinet can look close to the same size from across the room. Site drawings and asset tags sometimes carry over the wrong rating for this reason. Always confirm the actual kVA/kW rating from the unit's data plate, not from cabinet footprint, before ordering parts or scheduling a load-bank test.
What should I check before buying a used Cat UPS 900 pulled out of a data center?
Ask for total run hours and PM history first, since bearing and vacuum-pump service intervals track duty cycle more than calendar age. Get any vibration-analysis records if the previous site kept them; a rising trend flags bearing wear before it turns into a failure. Check the vacuum oil level and sight gauge, and look the flywheel housing over for visible damage. Confirm the controller/firmware revision and pull the fault history off the operator interface panel. This unit is battery-free, so the battery-age questions that matter on a conventional UPS purchase do not apply here; focus instead on the flywheel module and converter cabinet condition. If you need coverage through extended outages, confirm the generator-start-signal interface is present and functional, since the flywheel alone only bridges seconds to a couple minutes depending on load. Given the high-voltage DC bus and stored capacitor energy in these cabinets, have your dealer or a qualified electrical contractor inspect and commission the unit before it gets energized on site.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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