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Caterpillar UPS1200S
Maintenance schedule, common problems & OEM parts breakdown
The Cat UPS1200S is a stationary, battery-free flywheel-based uninterruptible power supply, the largest single-cabinet tier in Caterpillar's original flywheel UPS lineup, rated 1200 kVA/960 kW at 60 Hz. Despite sitting in Caterpillar's engine-generator-set parts catalog category, it carries no internal combustion engine of its own. A high-speed flywheel rotor paired with an IGBT bi-directional converter stores and delivers ride-through energy inside a sealed, evacuated ES12F cabinet, the same enclosure design shared with its smaller UPS1000S sibling. Production falls within the flywheel UPS family Caterpillar brought to market from 2000 in North America and 2001 in Europe through an alliance with the flywheel technology's original developer; single-module ratings such as the 1000S and 1200S stayed in the catalog for years after launch. Operating weight and cabinet dimensions for this specific S-generation single-cabinet build are not published; treat any later modular Z-series multi-cabinet figures as reference only, not a match for this unit. Configurations include the base flywheel/converter cabinet, an external make-before-break maintenance bypass cabinet, an optional input or output isolation transformer, and a 24-volt DC interface for starting a paired standby diesel generator; unlike its smaller Z-series relatives, the 1200 kVA tier is specifically excluded from the field-added N+1 redundancy module option.
The main generational shift across this flywheel UPS family is the move from mechanical ball-bearing flywheel rotors to contactless magnetic-bearing designs, which removes the recurring bearing-wear service item almost entirely and stretches maintenance intervals. Caterpillar did not issue a direct successor to the single-module UPS1200S; the lineup instead grew sideways into the Z-series (300Z through 1200Z), which parallels smaller building-block modules for scalable, field-redundant capacity - a different architecture, not a one-for-one replacement. In the used and parts market, UPS1200S units mostly surface from decommissioned data-center, hospital, or other critical-facility power trains being retired or upgraded. Because this is the largest single-module tier of its generation, buyers should weigh remaining life against the commonly cited 15 to 20 year service window for this equipment class and confirm vacuum-pump and bearing service history before committing, since a clean-looking cabinet can still be close to end of life on those specific wear items.
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 UPS1200S specifications
Engine
| Machine type | Static flywheel-based uninterruptible power supply (UPS), not an engine-driven generator set. There is no internal combustion engine or prime mover. Factory parts documentation files this unit under an engine-generator-set parts class, but that is a catalog grouping, not a functional description. |
| Energy conversion | IGBT-based bi-directional converter paired with a flywheel energy-storage rotor. No engine displacement, cylinder count, or emissions tier applies to this product. |
| Flywheel cabinet | Built around the ES12F flywheel enclosure, shared with the sibling UPS1000S unit. Each cabinet houses upper and lower flywheel assemblies. Flywheel removal and installation is factory/dealer service work, not a field procedure. |
Weights
| Operating/shipping weight | Not published for this single-cabinet generation. For reference only, the later modular 1200 kVA-class system (four linked 300 kVA cabinets) totals about 9,185 kg (20,250 lb) assembled, with individual shipping sections from roughly 530 to 2,041 kg (1,170 to 4,500 lb) each. Do not assume this matches the UPS1200S cabinet weight — the architectures differ. |
| Ground pressure | Not applicable. This is stationary, enclosure-mounted electrical equipment; no ground-bearing or ground-pressure figures are published. |
Dimensions
| Cabinet footprint | Not documented for the UPS1200S generation specifically. For reference only, the later modular 1200 kVA-class system spans about 865 mm (34.0 in) depth by 6,502 mm (256.0 in) width by 2,438 mm (96.0 in) height across its four linked cabinets — not confirmed as identical to this model's single-cabinet design. |
| Cable/conduit entry | Not confirmed for this generation specifically. The later flywheel UPS product family design uses top-and-bottom conduit entry, accommodating multiple conduits split across input, bypass, and output. |
Performance
| Rated capacity | 1200 kVA / 960 kW at 60 Hz, consistent with the model name across the flywheel UPS product family. |
| Travel speed / gradeability | Not applicable. This is stationary power-quality equipment with no travel speed, drawbar, or gradeability rating. |
| System efficiency | Not published for this generation specifically. For reference only, the later modular 1200 kVA-class system is rated at 98% total system efficiency. |
| Ride-through time | Not published for this generation specifically. For reference only, the later modular 1200 kVA-class system provides on the order of 14 seconds of ride-through at full rated load, extending to roughly 50 seconds at light (25%) load. |
| Overload capability | Not confirmed for this generation specifically. For reference only, the later modular 1200 kVA-class system supports short-duration overloads well above 100% of rated load for periods ranging from milliseconds up to several minutes, tapering as duration increases. |
Service capacities (summary)
| Fuel tank | Not applicable — no internal combustion engine or fuel system. |
| Hydraulic system | Not applicable — no hydraulic system. |
| Engine oil | Not applicable — no engine. |
| Cooling system | Not published for this generation specifically. For reference only, the later modular 1200 kVA-class system rejects on the order of 24.6 kW (about 84,000 BTU/hr) of heat, handled by facility HVAC/cooling rather than an onboard engine coolant system. |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
Caterpillar UPS1200S maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 50 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 43,800 h |
|
| Every 70,080 h |
|
Servicing the UPS1200S beyond the schedule
Predictive Maintenance & Fluid Analysis
The UPS1200S carries no engine oil or coolant to sample - its flywheel spins inside a sealed, evacuated ES12F housing, so condition monitoring runs on vacuum-gauge trending instead of fluid analysis. Log vacuum level, flywheel speed, and DC bus voltage at every inspection; a slow vacuum decline flags a developing seal or pump problem before it becomes a shutdown. At this larger 960 kW tier, add thermal imaging of bus bar and power-connection joints plus periodic DC bus capacitor capacitance checks to catch drift early.
Corrective & Common Repairs
Most UPS1200S field faults trace back to the power-electronics cabinet, not the flywheel rotor. The IGBT rectifier/inverter stage and static bypass switch are the parts most often flagged, usually from overcurrent or overtemperature events, blocked cooling airflow, or a static switch that fails to transfer cleanly to bypass. Loose power or control connections and remote-monitoring link dropouts round out the common list. Because the 1200 kVA tier carries more current than its smaller siblings, connection torque and cooling airflow checks matter more here.
Overhaul & Rebuild Points
Overhaul work on the UPS1200S centers on two wear items behind the cabinet doors: the vacuum pump maintaining the flywheel chamber's low pressure, commonly serviced on an 8 to 10 year cycle, and the bearing set on mechanical-bearing frames, typically addressed every 5 to 8 years. Neither is field work. The flywheel spins at high speed inside a sealed enclosure, and opening it outside a factory procedure is a warranty and safety issue given the stored rotational energy at this larger tier. Route any suspected flywheel fault to a Cat dealer.
Seasonal & Environment Servicing
With no fuel system or engine block, seasonal care on the UPS1200S comes down to the cabinet environment. Keep intake vents and the redundant cooling fans clear of dust, since blocked airflow drives the overtemperature faults that damage the converter and static switch at this higher-current tier. Watch for condensation risk and ambient swings in unconditioned mechanical rooms. If the unit sits idle through a season, have your dealer verify the flywheel still holds vacuum and confirm the paired standby generator starts cleanly before returning the system to service.
UPS1200S common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 240-2526 | Filter Element-Encl Air | Air intake service | Check fitment → |
| 244-4988 | Filter As-Electrical | Scheduled service item | Check fitment → |
| 244-4995 | Filter As-Electrical | Scheduled service item | Check fitment → |
| 244-4994 | Filter As-Electrical | Scheduled service item | Check fitment → |
Always confirm against your machine's serial number — cross-check any part in Heavy Parts AI before ordering.
UPS1200S fault codes & troubleshooting
| Code | Meaning | Likely cause | What to do |
|---|---|---|---|
| DC BUS OVERVOLTAGE | DC link bus voltage between the converter and flywheel motor/generator rises above the control system's upper threshold. | AC input transient, step-load transfer surge, or converter voltage-regulation fault. | Unit transfers load to static bypass automatically; check incoming AC quality and inspect the converter/rectifier stage before returning to normal mode. |
| DC BUS UNDERVOLTAGE | DC link bus voltage falls below the minimum level needed to sustain the inverter output. | Flywheel stored energy depleted by a long or repeated discharge, converter fault, or loss of recharge current. | Confirm utility input is restored, check flywheel charge/speed status, and inspect the converter for a charging fault. |
| FLYWHEEL OVERSPEED | Flywheel rotor speed inside the vacuum enclosure exceeds the safe upper limit. | Speed-sensor or motor/generator control-loop fault. | Unit shuts down on this fault; do not restart until the drive/control electronics and speed feedback are checked by qualified service. |
| FLYWHEEL UNDERSPEED / LOW STORED ENERGY | Flywheel speed or stored kinetic energy has dropped below the level needed to ride through a utility outage. | Repeated discharge events without enough recharge time, charging-circuit fault, or bearing drag. | Allow a full recharge interval after any discharge event and check the charging circuit and bearing/vacuum system if the condition recurs. |
| STATIC SWITCH TRANSFER FAULT | The static bypass switch fails to transfer the load cleanly between UPS output and the bypass source. | Thyristor/SCR failure in the switch, control-logic fault, or loss of synchronization with the bypass source. | Inspect the static switch module and verify the bypass source is present, in range, and in phase before clearing the fault. |
| IGBT CONVERTER FAULT | The bi-directional IGBT rectifier/inverter stage trips on overcurrent, overtemperature, or a gate-drive fault. | Converter component failure, output short circuit, or thermal overload from a cooling problem. | Unit drops to bypass on this fault; inspect the converter module and confirm cooling airflow before reset. |
| COOLING FAN FAULT | One of the redundant cooling fans has failed or airflow has dropped below the required level. | Fan motor failure, blocked intake/exhaust or filter, or loss of the fan control signal. | Replace the failed fan and clear any airflow obstruction; confirm the remaining redundant fan is carrying the load in the meantime. |
| CONTROL POWER FAULT | Loss of one leg of the unit's redundant control power feeding the logic and gate-drive circuits. | Control power supply failure or a wiring/connection fault on one of the redundant feeds. | Check both redundant control power supplies and their DC source; replace the faulted supply. |
| COMMUNICATIONS FAULT | Loss of the link between the UPS control panel and remote monitoring or paralleled units. | Ethernet/modem cable or port fault, serial (RS232/RS485) wiring issue, or an addressing conflict on a paralleled system. | Verify the Ethernet, modem, and RS232/RS485 connections and confirm the monitoring software session before clearing. |
| LOSS OF REDUNDANCY | In a paralleled/redundant UPS installation, one flywheel module is offline, leaving the group without spare capacity. | A paralleled module tripped on an internal fault or was placed in bypass/maintenance mode. | Identify and restore the offline module promptly; do not defer service while the system is running without its redundant module. |
Codes and remedies are general guidance for this model family — always confirm with diagnostic tooling and your dealer before major repairs.
UPS1200S attachments & work tools
Work-tool / attachment compatibility
The UPS1200S is a stationary flywheel-based Uninterruptible Power Supply (part of the UPS 1200Z series), not a mobile or powered machine. It has no bucket, fork, coupler, or hydraulic work-tool ecosystem of any kind; there are no OEM attachment guides for this product line because none apply.
Mounting / connection method
The unit is a free-standing floor-mounted cabinet system wired into the facility electrical distribution and, where used, into a Cat generator-set backup path. There is no quick-coupler or pin-mount system; connection is via fixed electrical bus and cabling, not a mechanical attachment interface.
Module / capacity configuration
UPS1200S sits at the top of the UPS 1200Z multi-module system, built from smaller module blocks in steps of roughly 300 kVA/240 kW up to the full 1200 kVA/960 kW, 60 Hz rating. Capacity is set at build/order time by the number of modules installed, not by field-fitted attachments.
Redundancy (N+1) option
Smaller Z-series tiers support adding a Multi-Module Unit in the field for N+1 redundant operation, but the 1200 kVA (and 1000 kVA) tier is specifically excluded from this field-added N+1 option per the manufacturer's multi-module documentation.
Bypass and isolation provisions
The system architecture includes an internal static bypass switch plus an external make-before-break maintenance bypass cabinet so the UPS can be isolated for service without dropping load. An optional isolation transformer can be fitted on the input or inverter output for AC-DC/voltage isolation, depending on job configuration.
Enclosure and guarding
Components are housed in free-standing steel cabinets (flywheel/converter module, static bypass, and maintenance-bypass sections), with the cabinet count varying by job. Indoor and outdoor-rated enclosure options exist across the Cat electric-power line generally; confirm the specific enclosure rating offered for a given UPS1200S order with the dealer, as this varies by configuration.
Generator-set integration
The UPS1200S is designed to pair with Cat diesel generator sets for ride-through/backup power rather than to accept work tools itself; it provides transient protection and harmonic distortion cancellation to allow clean handoff between utility, flywheel storage, and standby generation.
All UPS1200S assemblies by section
Every catalogued assembly group for the Caterpillar UPS1200S. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.
Electrical And Starting System
289-4938 Block As-Terminal
| 25***73 | Block As; (Thermal Switch) | 1 |
| 28***38 | Block As-Terminal | 1 |
242-7423 Board As-Circuit
| 24***23 | Board As-Circuit | 1 |
245-1599 Board As-Circuit
| 24***99 | Board As-Circuit | 1 |
| 25***47 | Diode | 1 |
239-9266 Board As-Circuit
| 23***29 | Battery; (Lithium) | 1 |
| 23***66 | Board As-Circuit | 1 |
242-7429 Board As-Circuit
| 24***29 | Board As-Circuit | 1 |
| 24***51 | Capacitor | 6 |
242-9374 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 2 |
| 24***74 | Board As-Circuit | 1 |
239-9264 Board As-Circuit
| 23***29 | Battery; (Lithium) | 1 |
| 23***64 | Board As-Circuit | 1 |
279-6656 Board As-Circuit
| 27***01 | Fuse; (3-Ampere) | 2 |
| 27***56 | Board As-Circuit | 1 |
282-3659 Board As-Circuit
| 18***60 | Fuse; (2-Ampere) | 1 |
| 18***61 | Fuse; (5-Ampere) | 2 |
| 23***53 | Fuse; (5-Ampere) | 8 |
242-7421 Board As-Circuit
| 24***46 | Fuse; (3.15-Ampere) | 1 |
| 24***21 | Board As-Circuit | 1 |
242-9375 Board As-Circuit
| 18***60 | Fuse; (2-Ampere) | 1 |
| 18***61 | Fuse; (5-Ampere) | 2 |
| 23***53 | Fuse; (5-Ampere) | 8 |
242-7427 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 1 |
| 24***27 | Board As-Circuit | 1 |
242-9373 Board As-Circuit
| 18***61 | Fuse; (5-Ampere) | 2 |
| 24***73 | Board As-Circuit | 1 |
242-9376 Board As-Circuit
| 18***54 | Fuse; (20-Ampere)(Output) | 1 |
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 1 |
242-7422 Board As-Circuit
| 24***22 | Board As-Circuit | 1 |
279-6658 Board As-Circuit
| 18***60 | Fuse; (2-Ampere) | 1 |
| 24***56 | Fuse; (0.5-Ampere) | 3 |
| 24***57 | Fuse; (2.5-Ampere) | 1 |
242-7424 Board As-Circuit
| 24***24 | Board As-Circuit | 1 |
242-7428 Board As-Circuit
| 19***99 | Fuse; (10-Ampere) | 1 |
| 23***53 | Fuse; (5-Ampere) | 1 |
| 24***46 | Fuse; (3.15-Ampere) | 1 |
242-7425 Board As-Circuit
| 18***56 | Fuse; (30-Ampere)(Output) | 2 |
| 24***46 | Fuse; (3.15-Ampere) | 2 |
| 24***25 | Board As-Circuit | 1 |
256-6468 Board As-Circuit
| 20***70 | Fuse; (4-Ampere) | 1 |
| 25***68 | Board As-Circuit | 1 |
242-7420 Board As-Circuit
| 24***20 | Board As-Circuit | 1 |
| 27***58 | Board As-Circuit | 1 |
239-9265 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 2 |
| 23***65 | Board As-Circuit | 1 |
244-8756 Board As-Circuit
| 24***56 | Board As-Circuit | 1 |
235-6333 Board As-Circuit -Electro Magnetic Interference
| 23***51 | Capacitor | 3 |
| 23***33 | Board As-Circuit; -Electro Magnetic Interference | 1 |
279-6655 Board As-Circuit -Controller
| 19***04 | Fuse; (3-Ampere) | 3 |
| 23***29 | Battery; (Lithium) | 1 |
| 23***53 | Fuse; (5-Ampere) | 1 |
294-2080 Bus Bar As -4-Wire
| 24***29 | Board As-Circuit | 3 |
| 29***80 | Bus Bar As; -4-Wire | 1 |
257-7944 Bus Bar As
| 24***29 | Board As-Circuit | 2 |
| 25***44 | Bus Bar As | 1 |
254-3922 Bus Bar As
| 25***22 | Bus Bar As | 1 |
257-7943 Bus Bar As
| 25***43 | Bus Bar As | 1 |
259-9050 Bus Bar As
| 25***50 | Bus Bar As | 1 |
244-7567 Bus Bar As
| 24***49 | Bus | 6 |
| 24***67 | Angle | 6 |
| 24***67 | Bus Bar As | 1 |
257-8455 Bus Bar As
| 25***55 | Bus Bar As | 1 |
257-8287 Bus Bar As
| 25***87 | Bus Bar As | 1 |
| 25***89 | Circuit Breaker As; (1600-Ampere)(Neutral) | 1 |
257-8458 Bus Bar As
| 25***58 | Bus Bar As | 1 |
245-2906 Bus Bar Gp
| 24***06 | Bus Bar Group | 1 |
| 24***07 | Bar As | 1 |
| 24***08 | Bar As | 1 |
245-2874 Bus Bar Gp
| 24***74 | Bus Bar Group | 1 |
| 24***21 | Bus | 1 |
| 24***22 | Bus | 1 |
245-2866 Bus Bar Gp
| 24***43 | Bar-Bus | 1 |
| 24***44 | Bar-Bus | 1 |
| 24***45 | Bar-Bus | 1 |
245-2869 Bus Bar Gp
| 24***67 | Angle | 3 |
| 24***69 | Bus Bar Group | 1 |
245-4775 Cable Gp -Generator Start, Dual
| 24***75 | Cable Group; -Generator Start, Dual | 1 |
| 25***20 | Cable | 1 |
| 25***21 | Cable | 1 |
245-4774 Cable Gp -Generator Start Option Output Circuit Breaker
| 24***74 | Cable Group; -Generator Start Option Output Circuit Breaker | 1 |
| 25***20 | Cable | 1 |
| 25***21 | Cable | 1 |
245-4778 Cable Gp -External Source Synchronizing
| 24***70 | Cable As | 1 |
| 24***71 | Cable As | 1 |
| 24***77 | Cable As | 1 |
245-2868 Circuit Breaker & Mounting Gp
| 24***24 | Circuit Breaker As; (1600-Ampere) | 1 |
| 24***68 | Circuit Breaker & Mounting Group | 1 |
259-6318 Circuit Breaker & Mounting Gp -System I/O
| 25***18 | Circuit Breaker & Mounting Group; -System I/O | 1 |
| 25***19 | Circuit Breaker As; (2000-Ampere) | 1 |
244-7556 Circuit Breaker & Mounting Gp -System I/O
| 24***19 | Circuit Breaker As; (1600-Ampere) | 1 |
| 24***56 | Circuit Breaker & Mounting Group; -System I/O | 1 |
257-7945 Circuit Breaker & Mounting Gp
| 25***43 | Bus Bar As | 1 |
| 25***45 | Circuit Breaker & Mounting Group | 1 |
| 25***46 | Circuit Breaker As; (1600-Ampere) | 1 |
258-5032 Circuit Breaker & Mounting Gp
| 25***32 | Circuit Breaker & Mounting Group | 1 |
| 25***34 | Circuit Breaker As; (2000-Ampere) | 1 |
257-8456 Circuit Breaker & Mounting Gp
| 25***55 | Bus Bar As | 1 |
| 25***56 | Circuit Breaker & Mounting Group | 1 |
| 25***57 | Circuit Breaker As; (4-Pole, 1600-Ampere, 600-Volt) | 1 |
244-1408 Conduit Gp
| 24***08 | Conduit Group | 1 |
| 27***81 | Cable; (24-Ga)(Yellow) | 1 |
| 27***82 | Cable; (24-Ga)(Grey) | 1 |
258-6904 Connection Gp-Electrical -Maintenance Bypass, 4-Wire
| 25***04 | Connection Group-Electrical; -Maintenance Bypass, 4-Wire | 1 |
244-6991 Contactor As
| 24***67 | Contactor; (230-Volt) | 1 |
| 24***91 | Contactor As | 1 |
244-4989 Contactor Gp
| 24***89 | Contactor Group | 1 |
| 24***91 | Contactor As | 2 |
203-3971 Diskette
| 20***71 | Diskette | 1 |
203-3976 Diskette
| 20***76 | Diskette | 1 |
245-3637 Fuse Gp -Inverter, Neutral
| 19***71 | Fuse; (63-Ampere) | 1 |
| 24***81 | Holder; (Fuse) | 2 |
| 24***97 | Switch; (Fuse) | 1 |
245-0537 Fuse Gp -Static Switch
| 24***20 | Block-Fuse; (2-Pole)(2-Pole) | 2 |
| 24***20 | Block-Fuse; (3-Pole) | 1 |
| 24***37 | Fuse; (2.5-Ampere) | 4 |
276-9059 Fuse Gp
| 19***97 | Fuse; (3-Ampere) | 6 |
| 24***01 | Block; (Terminal End)(Fuse) | 3 |
| 24***53 | Fuse; (1-Ampere) | 3 |
294-2081 Fuse Gp
| 24***53 | Fuse; (1-Ampere) | 4 |
| 27***50 | Block-Fuse | 1 |
| 29***81 | Fuse Group | 1 |
276-9057 Fuse Gp
| 24***01 | Block; (Terminal End)(Fuse) | 2 |
| 24***37 | Fuse; (2.5-Ampere) | 2 |
| 25***70 | Block | 1 |
244-4996 Fuse Gp -Control
| 20***77 | Fuse; (200-Ampere) | 1 |
| 20***69 | Indicator; (Fuse) | 1 |
| 24***96 | Fuse Group; -Control | 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 |
257-8288 Neutral Bus Bar As
| 25***88 | Neutral Bus Bar As | 1 |
254-5985 Panel Gp-Circuit Breaker
| 24***26 | Circuit Breaker As; (1600-Ampere) | 1 |
| 24***56 | Circuit Breaker & Mounting Group; -System I/O | 1 |
| 25***85 | Panel Group-Circuit Breaker | 1 |
244-8660 Panel Gp-Circuit Breaker
| 24***75 | Panel Group-Circuit Breaker | 1 |
| 24***60 | Panel Group-Circuit Breaker | 1 |
244-8659 Panel Gp-Circuit Breaker
| 24***76 | Panel Group-Circuit Breaker | 1 |
| 24***59 | Panel Group-Circuit Breaker | 1 |
244-8658 Panel Gp-Circuit Breaker
| 24***75 | Panel Group-Circuit Breaker | 1 |
| 24***58 | Panel Group-Circuit Breaker | 1 |
244-7571 Panel Gp-Circuit Breaker
| 24***24 | Circuit Breaker As; (1600-Ampere) | 1 |
| 24***56 | Circuit Breaker & Mounting Group; -System I/O | 1 |
| 24***71 | Panel Group-Circuit Breaker | 1 |
244-8661 Panel Gp-Circuit Breaker
| 24***76 | Panel Group-Circuit Breaker | 1 |
| 24***61 | Panel Group-Circuit Breaker | 1 |
244-7576 Panel Gp-Circuit Breaker
| 24***07 | Plate | 1 |
| 24***09 | Block-Terminal; (4-Pole) | 1 |
| 24***76 | Panel Group-Circuit Breaker | 1 |
259-3170 Panel Gp-Circuit Breaker
| 25***34 | Circuit Breaker As; (2000-Ampere) | 1 |
| 25***70 | Panel Group-Circuit Breaker | 1 |
| 25***18 | Circuit Breaker & Mounting Group; -System I/O | 1 |
244-7575 Panel Gp-Circuit Breaker
| 24***07 | Plate | 2 |
| 24***09 | Block-Terminal; (4-Pole) | 1 |
| 24***75 | Panel Group-Circuit Breaker | 1 |
265-5574 Resistor As
| 26***74 | Resistor As | 1 |
261-7479 Resistor As
| 26***79 | Resistor As | 1 |
| 26***81 | Kit-Resistor Wire; (12-Ohm, 500-Watt) | 1 |
243-3782 Sensor Gp-Temperature -Flywheel Bearing
| 20***52 | . Coller, Sensor-Vacuum; (Flywheel Bearing) | 1 |
| 24***13 | Retainer; (Gauge) | 1 |
| 24***82 | Sensor Group-Temperature; -Flywheel Bearing | 1 |
289-4936 Strip As-Terminal
| 18***52 | Fuse; (2-Ampere)(Input) | 8 |
| 24***37 | Fuse; (2.5-Ampere) | 2 |
| 24***53 | Fuse; (1-Ampere) | 4 |
245-0560 Switch As -Static
| 24***07 | Plate | 4 |
| 24***09 | Block-Terminal; (4-Pole) | 2 |
| 24***60 | Switch As; -Static | 1 |
253-8957 Switch As-Power -Remote Emergency Stop
| 25***72 | Switch-Push Button; (Remote Emergency Stop) | 1 |
| 25***57 | Switch As-Power; -Remote Emergency Stop | 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 |
294-2078 Switch As-Selector -Service Mode
| 29***89 | Switch; (Select) | 1 |
| 29***78 | Switch As-Selector; -Service Mode | 1 |
287-5712 Switch Gp-Push Button -Emergency Power Off
| 28***12 | Switch Group-Push Button; -Emergency Power Off | 1 |
| 28***13 | Switch As-Push Button; (Emergency Power Off) | 1 |
290-3873 Switch Gp-Temperature
| 26***25 | Switch-Thermal; (150-Deg)(Transformer) | 3 |
| 26***26 | Switch-Thermal; (160-Deg)(Transformer) | 3 |
| 26***27 | Thermistor | 3 |
245-0534 Transformer As
| 24***10 | Transformer As-Current; (Ratio 2000:5) | 3 |
| 24***34 | Transformer As | 1 |
263-0793 Transformer As
| 26***25 | Switch-Thermal; (150-Deg)(Transformer) | 3 |
| 26***26 | Switch-Thermal; (160-Deg)(Transformer) | 3 |
| 26***27 | Thermistor | 3 |
291-1075 Transformer Gp
| 29***73 | Switch Group-Temperature | 1 |
| 29***21 | Base | 1 |
| 29***75 | Transformer Group | 1 |
290-3872 Transformer Gp
| 24***10 | Transformer As-Current; (Ratio 2000:5) | 1 |
| 29***72 | Transformer Group | 1 |
245-0564 Transformer Gp-Current
| 24***10 | Transformer As-Current; (Ratio 2000:5) | 3 |
| 24***64 | Transformer Group-Current | 1 |
Enclosures, Guards And Bases
244-7601 Baffle As-Air Flow
| 24***01 | Baffle As-Air Flow | 1 |
| 24***38 | Resistor; (5000-Ohm, 175-Watt) | 6 |
290-6621 Base
| 24***68 | Cleat | 2 |
| 29***21 | Base | 1 |
244-7369 Base As
| 24***69 | Base As | 1 |
| 24***39 | Cleat; (Base) | 2 |
243-3794 Fan As-Circulating
| 24***94 | Fan As-Circulating | 1 |
| 24***43 | Cable As; (Control) | 1 |
| 24***44 | Cable As; (Power) | 1 |
244-4993 Fan As-Circulating
| 24***50 | Guard-Fan; (Fan) | 1 |
| 24***94 | Fan As-Circulating | 1 |
| 24***93 | Fan As-Circulating | 1 |
245-0565 Fan Gp-Circulating
| 24***85 | Resistor; (25-Ohm, 650-Watt) | 1 |
| 24***93 | Fan As-Circulating | 3 |
| 24***65 | Fan Group-Circulating | 1 |
244-4991 Fan Gp-Circulating
| 24***91 | Fan Group-Circulating | 1 |
| 24***93 | Fan As-Circulating | 3 |
243-3792 Fan Gp-Circulating
| 24***92 | Fan Group-Circulating | 1 |
| 24***94 | Fan As-Circulating | 3 |
290-3858 Fan Gp-Circulating
| 24***93 | Fan As-Circulating | 4 |
| 29***58 | Fan Group-Circulating | 1 |
244-7593 Fan Gp-Circulating -Plenum
| 24***94 | Fan As-Circulating | 2 |
| 24***93 | Fan Group-Circulating; -Plenum | 1 |
256-6472 Fan Gp-Circulating
| 24***93 | Fan As-Circulating | 3 |
| 25***71 | Panel As-Electrical | 1 |
| 25***72 | Fan Group-Circulating | 1 |
244-8753 Fan Gp-Circulating -Plenum
| 24***93 | Fan Group-Circulating; -Plenum | 1 |
| 24***53 | Fan Group-Circulating; -Plenum | 1 |
245-2870 Frame As
| 24***56 | Bar-Bus; (Tie In) | 2 |
| 24***39 | Cleat; (Base) | 2 |
| 24***70 | Frame As | 1 |
257-4950 Frame As
| 24***39 | Cleat; (Base) | 2 |
| 25***50 | Frame As | 1 |
244-7545 Frame As
| 24***55 | Bar-Bus; (Ground) | 1 |
| 24***56 | Bar-Bus; (Tie In) | 2 |
| 24***45 | Frame As | 1 |
294-3319 Frame As -Internal Components
| 24***84 | Panel Group-Electrical | 1 |
| 24***85 | Panel Group-Electrical | 1 |
| 24***86 | Panel Group-Electrical | 1 |
Operator Station
237-9613 Adapter-Communication
| 23***13 | Adapter-Communication | 1 |
| 26***06 | Cable | 1 |
130-3349 Control Gp-Alarm Module
| 13***49 | Control Group-Alarm Module | 1 |
| 22***41 | Screw; (5/16-18x0.875-In) | 16 |
| 22***42 | Seal-O-Ring | 1 |
243-3783 Coupling Gp-Vacuum
| 24***83 | Coupling Group-Vacuum | 1 |
| 3J***54 | Packing,Preformed Part Of Kit P/N 5r***27 | 1 |
| 9S***02 | Plug-O-Ring; (Straight Thread O-Ring) | 1 |
256-6479 Enclosure Gp-Power Supply
| 24***37 | Panel Group-Power Supply | 1 |
| 25***79 | Enclosure Group-Power Supply | 1 |
| 25***70 | Enclosure Group-Power Supply | 1 |
244-1407 Enclosure Gp-Power Supply
| 24***06 | Fitting | 1 |
| 24***12 | Fitting | 1 |
| 24***61 | Clamp | 2 |
245-2767 Enclosure Gp-Power Supply
| 24***29 | Door; (Lh) | 1 |
| 24***11 | Handle; (Door) | 2 |
| 24***23 | Plate; (Rear) | 1 |
259-1170 Enclosure Gp-Power Supply
| 25***51 | Enclosure Group-Power Supply | 1 |
| 25***56 | Circuit Breaker & Mounting Group | 1 |
| 25***59 | Cable; (Ground) | 2 |
244-7581 Enclosure Gp-Power Supply
| 24***41 | Panel Group-Electrical | 1 |
| 24***55 | Panel Group-Electrical | 1 |
| 24***56 | Circuit Breaker & Mounting Group; -System I/O | 1 |
244-4997 Enclosure Gp-Power Supply
| 24***83 | Panel Group-Electrical | 1 |
| 24***84 | Panel Group-Electrical | 1 |
| 24***85 | Panel Group-Electrical | 1 |
244-4979 Enclosure Gp-Power Supply
| 20***31 | Switch-Push Button; (Emergency Module Off) | 1 |
| 20***33 | Switch; (Key)(Emergency Stop) | 1 |
| 23***85 | Key; (Control) | 1 |
257-8454 Enclosure Gp-Power Supply
| 25***51 | Enclosure Group-Power Supply | 1 |
| 25***45 | Circuit Breaker & Mounting Group | 1 |
| 25***54 | Enclosure Group-Power Supply | 1 |
244-7596 Enclosure Gp-Power Supply
| 24***56 | Enclosure Group-Power Supply | 1 |
| 24***59 | Panel Group-Electrical | 1 |
| 24***96 | Enclosure Group-Power Supply | 1 |
257-4951 Enclosure Gp-Power Supply
| 24***11 | Handle; (Door) | 2 |
| 24***16 | Screen; (Front) | 2 |
| 24***23 | Plate; (Rear) | 1 |
244-7356 Enclosure Gp-Power Supply
| 20***73 | Fuse; (1-Ampere) | 2 |
| 24***19 | Board As-Circuit; (Remote Status) | 1 |
| 24***89 | Cable As | 1 |
245-4772 Enclosure Gp-Power Supply
| 24***32 | Switch-Push Button; (Bypass) | 2 |
| 24***05 | Panel Group-Electrical | 1 |
| 24***72 | Enclosure Group-Power Supply | 1 |
244-4981 Enclosure Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 1 |
257-4952 Enclosure Gp-Power Supply
| 25***66 | Panel; (Bottom) | 1 |
| 25***67 | Panel; (Top) | 1 |
| 25***50 | Frame As | 1 |
326-6080 Enclosure Gp-Power Supply
| 32***80 | Enclosure Group-Power Supply | 1 |
244-4982 Enclosure Gp-Power Supply
| 24***27 | Board As-Circuit | 1 |
| 24***82 | Enclosure Group-Power Supply | 1 |
259-9049 Enclosure Gp-Power Supply
| 24***71 | Panel Group-Circuit Breaker | 1 |
| 24***72 | Panel Group-Electrical | 1 |
| 24***06 | Bus Bar Group | 1 |
326-5094 Enclosure Gp-Power Supply
| 25***51 | Enclosure Group-Power Supply | 1 |
| 25***50 | Bus Bar As | 1 |
| 32***94 | Enclosure Group-Power Supply | 1 |
245-0529 Enclosure Gp-Power Supply
| 24***31 | Plate; (Side, Rh) | 1 |
| 24***11 | Handle; (Door) | 2 |
| 24***16 | Screen; (Front) | 4 |
244-7384 Enclosure Gp-Power Supply
| 24***30 | Panel; (Main, Top) | 1 |
| 24***32 | Panel; (Subpanel, Top) | 2 |
| 24***31 | Plate; (Side, Rh) | 1 |
244-4988 Filter As-Electrical
| 24***88 | Filter As-Electrical | 1 |
244-4995 Filter As-Electrical
| 24***95 | Filter As-Electrical | 3 |
244-4994 Filter As-Electrical
| 24***77 | Inductor | 6 |
| 24***94 | Filter As-Electrical | 1 |
244-1409 Flywheel Gp-Power Supply
| 24***97 | Switch; (Fuse) | 2 |
| 24***35 | Capacitor; (1200-Volt) | 2 |
| 24***44 | Capacitor; (450-Volt) | 8 |
243-3796 Flywheel Gp-Power Supply
| 18***09 | Resistor; (13-Watt) | 2 |
| 24***42 | Capacitor; (600-Volt) | 24 |
| 24***96 | Flywheel Group-Power Supply | 1 |
244-8714 Module As -Solid-State Switch
| 23***35 | Seal-O-Ring | 2 |
| 23***04 | Pump & Motor Group-Vacuum | 1 |
| 24***12 | Fitting | 1 |
250-7959 Module Gp-Alarm
| 24***03 | Board As-Circuit; (Digital Gate Drive) | 1 |
| 25***59 | Module Group-Alarm | 1 |
240-1892 Module Gp-Converter
| 24***92 | Module Group-Converter | 1 |
| 24***87 | Fuse; (250-Ampere) | 2 |
| 24***97 | Switch; (Fuse) | 2 |
240-1663 Module Gp-Converter
| 13***49 | Control Group-Alarm Module | 1 |
| 19***39 | Film-Control Panel | 1 |
| 24***63 | Module Group-Converter | 1 |
236-4956 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***50 | Bracket | 2 |
| 23***56 | Panel Ar-Control | 1 |
236-4955 Panel Ar-Control
| 22***37 | Fuse; (63-Ampere) | 5 |
| 23***55 | Panel Ar-Control | 1 |
| 24***15 | Panel Group-Electrical; -Converter Module | 3 |
236-4958 Panel Ar-Control -Generator Start, Dual
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***50 | Bracket | 2 |
| 23***58 | Panel Ar-Control; -Generator Start, Dual | 1 |
236-4957 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 2 |
| 23***50 | Bracket | 4 |
| 23***57 | Panel Ar-Control; -Generator Start, Single | 1 |
245-1678 Panel As-Electrical
| 24***22 | Board As-Circuit | 1 |
| 24***23 | Board As-Circuit | 2 |
| 24***78 | Panel As-Electrical | 1 |
256-6471 Panel As-Electrical
| 24***11 | Relay-Time Delay; (Back Feed Circuit) | 1 |
| 24***12 | Socket | 1 |
| 24***63 | Clip | 1 |
256-6477 Panel As-Electrical
| 23***65 | Board As-Circuit | 1 |
| 24***07 | Headliner | 3 |
| 24***22 | Board As-Circuit | 1 |
244-4990 Panel As-Electrical
| 23***48 | Panel Group-Control; -Generator Start | 2 |
| 23***50 | Bracket | 4 |
| 24***90 | Panel As-Electrical | 1 |
294-2918 Panel As-Electrical
| 26***74 | Resistor As | 3 |
| 29***81 | Fuse Group | 1 |
| 29***18 | Panel As-Electrical | 1 |
245-0563 Panel As-Electrical
| 20***66 | Fuse; (7-Ampere) | 2 |
| 24***03 | Fuse; (30-Ampere) | 3 |
| 24***07 | Plate | 2 |
244-7547 Panel As-Electrical
| 24***47 | Panel As-Electrical | 1 |
| 24***39 | Cleat; (Base) | 2 |
256-6478 Panel As-Electrical
| 20***01 | Transformer; (230-Volt) | 2 |
| 24***41 | Thermistor; (10-Ampere)(10-Ampere) | 2 |
| 25***73 | Block As; (Thermal Switch) | 1 |
294-2079 Panel As-Electrical
| 24***62 | Diode As; (Bridge) | 1 |
| 24***37 | Fuse Group; -Inverter, Neutral | 6 |
| 29***79 | Panel As-Electrical | 1 |
245-2872 Panel As-Electrical
| 20***03 | Transformer; (230-Volt) | 1 |
| 24***91 | Thermistor; (10-Ohm) | 1 |
| 24***39 | Cleat; (Base) | 2 |
287-6148 Panel As-Electrical -Neutral Fuse
| 20***01 | Transformer; (230-Volt) | 1 |
| 24***21 | Transformer; (630-Volt) | 1 |
| 24***41 | Thermistor; (10-Ampere)(10-Ampere) | 2 |
233-7648 Panel Gp-Control -Generator Start
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***53 | Capacitor | 2 |
| 23***56 | Circuit Breaker As; (25-Ampere) | 1 |
244-4987 Panel Gp-Electrical
| 24***87 | Panel Group-Electrical | 2 |
| 24***91 | Fan Group-Circulating | 1 |
| 24***94 | Filter As-Electrical | 1 |
244-4980 Panel Gp-Electrical
| 24***63 | Module Group-Converter | 1 |
| 24***92 | Module Group-Converter | 1 |
| 24***98 | Panel Group-Electrical | 1 |
245-0539 Panel Gp-Electrical
| 24***34 | Transformer As | 1 |
| 24***37 | Fuse Group; -Static Switch | 1 |
| 24***39 | Panel Group-Electrical | 2 |
244-8746 Panel Gp-Electrical
| 24***74 | Transducer; (1000-Ampere) | 4 |
| 24***01 | Baffle As-Air Flow | 2 |
| 24***46 | Panel Group-Electrical | 1 |
244-7572 Panel Gp-Electrical
| 24***03 | Fuse; (30-Ampere) | 2 |
| 24***04 | Block-Fuse; (2-Pole) | 1 |
| 24***72 | Panel Group-Electrical | 1 |
240-1898 Panel Gp-Electrical
| 23***53 | Capacitor | 2 |
| 23***57 | Fuse; (0.25-Ampere) | 2 |
| 23***59 | Relay; (24-Volt)(Control Panel) | 2 |
245-1220 Panel Gp-Electrical
| 24***56 | Board As-Circuit | 1 |
| 24***20 | Panel Group-Electrical | 1 |
253-8959 Panel Gp-Electrical
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***01 | Transformer; (230-Volt) | 2 |
243-3793 Panel Gp-Electrical
| 23***66 | Board As-Circuit | 1 |
| 24***93 | Panel Group-Electrical | 1 |
245-0530 Panel Gp-Electrical
| 24***82 | Block-Terminal | 2 |
| 24***46 | Fuse; (3.15-Ampere) | 5 |
| 24***52 | Fuse; (15-Ampere) | 1 |
244-4986 Panel Gp-Electrical
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 2 |
243-3791 Panel Gp-Electrical
| 24***08 | Block | 1 |
| 24***22 | Board As-Circuit | 1 |
| 24***74 | Board As-Circuit | 1 |
243-3781 Panel Gp-Electrical
| 24***91 | Thermistor; (10-Ohm) | 1 |
| 24***99 | Diode | 1 |
| 24***01 | Block; (Terminal End)(Fuse) | 5 |
243-3780 Panel Gp-Electrical
| 24***06 | Switch-Disconnect; (3-Pole, 400-Amp, Fusible) | 1 |
| 24***10 | Shaft | 1 |
| 24***15 | Contact | 1 |
244-7570 Panel Gp-Electrical
| 24***43 | Bar-Bus | 1 |
| 24***44 | Bar-Bus | 1 |
| 24***45 | Bar-Bus | 1 |
259-1395 Panel Gp-Electrical
| 24***72 | Panel Group-Electrical | 1 |
| 24***06 | Bus Bar Group | 1 |
| 25***95 | Panel Group-Electrical | 1 |
243-3779 Panel Gp-Electrical
| 24***79 | Panel Group-Electrical | 1 |
| 24***99 | Board As-Circuit | 1 |
289-4942 Panel Gp-Electrical
| 23***65 | Board As-Circuit | 1 |
| 24***07 | Headliner | 3 |
| 24***22 | Board As-Circuit | 1 |
244-7604 Panel Gp-Electrical
| 24***74 | Transducer; (1000-Ampere) | 4 |
| 24***01 | Baffle As-Air Flow | 2 |
| 24***04 | Panel Group-Electrical | 1 |
245-0540 Panel Gp-Electrical
| 24***40 | Panel Group-Electrical | 2 |
245-0889 Panel Gp-Electrical
| 24***61 | Fuse; (1000-Ampere) | 1 |
| 24***14 | Module As; -Solid-State Switch | 1 |
| 24***61 | Filter As-Electrical; (Capacitor) | 1 |
244-7541 Panel Gp-Electrical
| 24***27 | Board As-Circuit | 1 |
| 24***41 | Panel Group-Electrical | 1 |
| 29***95 | Block As-Terminal | 1 |
244-7555 Panel Gp-Electrical
| 24***36 | Panel Group-Electrical | 1 |
| 24***69 | Base As | 1 |
| 24***45 | Frame As | 1 |
244-7562 Panel Gp-Electrical
| 24***51 | Panel; (Front) | 1 |
| 24***29 | Switch-Push Button; (Transformer Temperature Status) | 1 |
| 24***62 | Panel Group-Electrical | 2 |
240-2515 Panel Gp-Electrical -Converter Module
| 24***15 | Panel Group-Electrical; -Converter Module | 1 |
| 26***36 | Board As; (Field Coil Driver) | 2 |
244-4998 Panel Gp-Electrical
| 24***88 | Filter As-Electrical | 1 |
| 24***89 | Contactor Group | 1 |
| 24***90 | Panel As-Electrical | 1 |
244-7565 Panel Gp-Electrical
| 24***41 | Panel Group-Electrical | 1 |
| 24***65 | Panel Group-Electrical | 2 |
| 24***67 | Bus Bar As | 1 |
245-2871 Panel Gp-Electrical
| 24***66 | Bus Bar Group | 1 |
| 24***68 | Circuit Breaker & Mounting Group | 1 |
| 24***69 | Bus Bar Group | 1 |
244-7602 Panel Gp-Electrical
| 23***65 | Board As-Circuit | 1 |
| 24***05 | Block-Fuse; (3-Pole) | 1 |
| 24***53 | Fuse; (1-Ampere) | 3 |
244-7559 Panel Gp-Electrical
| 24***09 | Block-Terminal; (4-Pole) | 1 |
| 24***43 | Bar-Bus | 1 |
| 24***44 | Bar-Bus | 1 |
244-7574 Panel Gp-Electrical
| 20***65 | Fuse; (4-Ampere) | 2 |
| 24***04 | Block-Fuse; (2-Pole) | 1 |
| 24***74 | Panel Group-Electrical | 1 |
244-4985 Panel Gp-Electrical
| 20***65 | Fuse; (4-Ampere) | 3 |
| 23***72 | Transformer; (10-Ampere) | 1 |
| 24***01 | Block; (Terminal End)(Fuse) | 4 |
244-4984 Panel Gp-Electrical
| 23***64 | Board As-Circuit | 1 |
| 24***09 | Block-Terminal; (4-Pole) | 1 |
| 24***07 | Transformer As; (1-Va) | 6 |
279-3994 Panel Gp-Electrical -Fuse
| 24***72 | Panel Group-Electrical | 1 |
| 24***06 | Bus Bar Group | 1 |
| 25***85 | Panel Group-Circuit Breaker | 1 |
289-4941 Panel Gp-Electrical
| 20***70 | Fuse; (4-Ampere) | 1 |
| 24***05 | Block | 1 |
| 28***41 | Panel Group-Electrical | 1 |
245-2805 Panel Gp-Electrical
| 24***91 | Thermistor; (10-Ohm) | 1 |
| 24***22 | Transformer | 1 |
| 24***05 | Panel Group-Electrical | 1 |
243-3795 Panel Gp-Electrical
| 24***07 | Handle | 1 |
| 24***18 | Panel | 1 |
| 24***29 | Switch-Push Button; (Transformer Temperature Status) | 1 |
312-8583 Panel Gp-Electrical
| 20***02 | Transformer; (230-Volt) | 4 |
| 24***21 | Transformer; (630-Volt) | 1 |
| 24***41 | Thermistor; (10-Ampere)(10-Ampere) | 5 |
244-4504 Panel Gp-Electrical
| 22***36 | Board As-Circuit; (Dc Interface) | 1 |
| 24***45 | Resistor | 4 |
| 24***04 | Panel Group-Electrical | 1 |
244-4983 Panel Gp-Electrical
| 20***31 | Switch-Push Button; (Emergency Module Off) | 1 |
| 22***40 | Cover; (Secondary Stop) | 1 |
| 24***99 | Display | 1 |
245-0562 Panel Gp-Electrical
| 24***55 | Bar-Bus; (Ground) | 1 |
| 24***62 | Panel Group-Electrical | 2 |
| 24***63 | Panel As-Electrical | 1 |
240-2736 Panel Gp-Electrical
| 24***67 | Capacitor; (1200-Volt) | 2 |
| 24***68 | Capacitor; (500-Volt) | 4 |
| 24***22 | Shroud | 1 |
245-0888 Panel Gp-Electrical
| 19***99 | Fuse; (10-Ampere) | 2 |
| 23***32 | Relay; (1.8-Ampere, 3-Pole)(Overload) | 1 |
| 23***34 | Block-Terminal | 1 |
290-3815 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 1 |
245-0569 Panel Gp-Power Supply
| 24***56 | Enclosure Group-Power Supply | 1 |
| 24***84 | Enclosure Group-Power Supply | 1 |
| 24***69 | Panel Group-Power Supply | 1 |
253-8962 Panel Gp-Power Supply
| 24***81 | Enclosure Group-Power Supply | 1 |
| 25***62 | Panel Group-Power Supply | 1 |
237-9614 Panel Gp-Power Supply
| 23***14 | Panel Group-Power Supply | 1 |
| 24***37 | Panel Group-Power Supply | 1 |
| 25***95 | Panel Group-Electrical | 1 |
259-7070 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***26 | Filter Element-Encl Air | 2 |
245-2762 Panel Gp-Power Supply
| 24***08 | Conduit Group | 1 |
| 24***96 | Enclosure Group-Power Supply | 1 |
| 24***04 | Panel Group-Electrical | 1 |
294-2969 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***26 | Filter Element-Encl Air | 2 |
245-8341 Panel Gp-Power Supply
| 24***41 | Panel Group-Power Supply | 1 |
| 25***53 | Panel Group-Power Supply | 1 |
245-1234 Panel Gp-Power Supply
| 24***29 | Enclosure Group-Power Supply | 1 |
| 24***30 | Panel Group-Electrical | 1 |
| 24***34 | Panel Group-Power Supply | 1 |
237-9361 Panel Gp-Power Supply
| 23***61 | Panel Group-Power Supply | 1 |
| 24***01 | Panel Group-Power Supply | 2 |
257-4953 Panel Gp-Power Supply
| 24***37 | Panel Group-Power Supply | 1 |
| 25***53 | Panel Group-Power Supply | 1 |
| 25***01 | Panel Group-Power Supply; (Bottom Cable Entry) | 1 |
244-7577 Panel Gp-Power Supply
| 24***79 | Enclosure Group-Power Supply | 1 |
| 24***81 | Enclosure Group-Power Supply | 1 |
| 24***82 | Enclosure Group-Power Supply | 1 |
245-8339 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 1 |
245-8340 Panel Gp-Power Supply
| 24***40 | Panel Group-Power Supply | 1 |
| 25***79 | Enclosure Group-Power Supply | 1 |
| 25***01 | Panel Group-Power Supply | 1 |
253-8961 Panel Gp-Power Supply
| 24***62 | Panel Group-Power Supply | 1 |
| 24***67 | Enclosure Group-Power Supply | 1 |
| 25***61 | Panel Group-Power Supply | 1 |
237-9362 Panel Gp-Power Supply
| 23***62 | Panel Group-Power Supply | 1 |
| 24***01 | Panel Group-Power Supply | 3 |
237-9360 Panel Gp-Power Supply
| 23***60 | Panel Group-Power Supply | 1 |
| 24***81 | Enclosure Group-Power Supply | 1 |
| 25***53 | Panel Group-Power Supply | 1 |
257-8452 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 1 |
294-2893 Panel Gp-Power Supply -Circuit Breaker, 4-Pole, 4-Wire
| 24***11 | Handle; (Door) | 2 |
| 24***16 | Screen; (Front) | 1 |
| 24***23 | Plate; (Rear) | 1 |
246-2037 Panel Gp-Power Supply
| 24***37 | Panel Group-Power Supply | 1 |
| 25***52 | Panel Group-Power Supply | 1 |
244-5000 Panel Gp-Power Supply
| 24***31 | Panel | 1 |
| 24***55 | Plate | 1 |
| 24***24 | Board As-Circuit | 2 |
259-8401 Panel Gp-Power Supply
| 24***01 | Panel Group-Power Supply | 1 |
| 25***01 | Panel Group-Power Supply | 1 |
237-9609 Panel Gp-Power Supply
| 23***09 | Panel Group-Power Supply | 1 |
| 24***01 | Panel Group-Power Supply | 4 |
244-4501 Panel Gp-Power Supply
| 24***01 | Panel Group-Power Supply | 1 |
| 24***97 | Enclosure Group-Power Supply | 1 |
| 25***59 | Module Group-Alarm | 1 |
237-9348 Power Gp-Uninterruptible
| 23***48 | Power Group-Uninterruptible | 1 |
| 24***00 | Panel Group-Power Supply | 1 |
| 24***77 | Panel Group-Power Supply | 1 |
294-3381 Power Gp-Uninterruptible -3-Pole, 4-Wire
| 24***69 | Panel Group-Power Supply | 1 |
| 24***34 | Panel Group-Power Supply | 1 |
| 24***39 | Panel Group-Power Supply | 1 |
263-3331 Power Gp-Uninterruptible
| 24***00 | Panel Group-Power Supply | 1 |
| 24***77 | Panel Group-Power Supply | 1 |
| 24***69 | Panel Group-Power Supply | 1 |
237-9347 Power Gp-Uninterruptible
| 23***47 | Power Group-Uninterruptible | 1 |
| 24***79 | Enclosure Group-Power Supply | 1 |
| 24***81 | Enclosure Group-Power Supply | 1 |
243-3784 Power Supply Gp
| 24***84 | Power Supply Group | 1 |
| 24***69 | Panel Group-Power Supply | 1 |
| 24***34 | Panel Group-Power Supply | 1 |
231-3504 Pump & Motor Gp-Vacuum
| 20***32 | Power Supply; (350-Watt) | 1 |
| 23***04 | Pump & Motor Group-Vacuum | 1 |
| 23***88 | Capacitor; (450-Volt) | 2 |
Service Equipment And Supplies
282-3513 Parts Gp-Miscellaneous -Parallel Maintenance Bypass
| 18***61 | Fuse; (5-Ampere) | 20 |
| 19***71 | Fuse; (63-Ampere) | 5 |
| 19***97 | Fuse; (3-Ampere) | 10 |
244-8664 Parts Gp-Miscellaneous
| 18***61 | Fuse; (5-Ampere) | 20 |
| 19***71 | Fuse; (63-Ampere) | 5 |
| 19***99 | Fuse; (10-Ampere) | 10 |
244-8663 Parts Gp-Miscellaneous
| 18***46 | Kit-Pump; (Vacuum) | 1 |
| 24***65 | Ring | 4 |
| 24***00 | Connector | 1 |
282-3512 Parts Gp-Miscellaneous -Base Unit Configuration, 4-Wire
| 18***56 | Fuse; (30-Ampere)(Output) | 2 |
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***32 | Power Supply; (350-Watt) | 1 |
282-3515 Parts Gp-Miscellaneous -Parallel Controls
| 24***11 | Relay-Time Delay; (Back Feed Circuit) | 1 |
| 27***56 | Board As-Circuit | 1 |
| 28***15 | Parts Group-Miscellaneous; -Parallel Controls | 1 |
282-3516 Parts Gp-Miscellaneous -Separate Maintenance Bypass
| 18***61 | Fuse; (5-Ampere) | 20 |
| 19***71 | Fuse; (63-Ampere) | 1 |
| 19***99 | Fuse; (10-Ampere) | 10 |
Parts Group-Miscellaneous
| 20***70 | Fuse; (4-Ampere) | 3 |
| 24***11 | Relay-Time Delay; (Back Feed Circuit) | 1 |
| 24***28 | Board As-Circuit | 1 |
UPS1200S serial number reference
The PIN/serial plate is a riveted metal tag on the power-supply enclosure frame, near the control panel or access door. Read the plate itself, not any tag on the flywheel module; flywheel sub-assemblies are not user-serviceable and carry their own separate component tags. The prefix (three letters, e.g. CZT) is followed by a sequential unit number.
| Prefix | Identifies | Notes |
|---|---|---|
| CZT | UPS1200S | Serial prefix for the UPS1200S flywheel uninterruptible power supply, CZT00001-UP. Falls within the same SEBP4040 parts manual and RENR8028 electrical schematic family as the UPS1000S (CZS) and ES12F (CZE) prefixes. Several shared enclosure/attachment parts list CZS and CZT together as sibling serial-effectivity ranges on the same component; confirm exact effectivity with a dealer when ordering. |
| CZE | ES12F flywheel cabinet (shared range across the ES12F / UPS1000S / UPS1200S manual family) | Prefix for the ES12F flywheel-cabinet core, CZE00001-UP, used on enclosure, frame, fan, and operator-station components common to the combined ES12F/UPS1000S/UPS1200S parts manual and electrical schematic. Not a UPS1200S-exclusive range; confirm with a dealer which components on a given UPS1200S unit carry CZE versus CZT. |
Frequently asked questions
What engine does the Cat UPS1200S use?
None. The UPS1200S has no internal combustion engine of its own, despite sitting in Caterpillar's engine-generator-set parts category. It is a flywheel-based static UPS - a motor/generator paired with a sealed, spinning flywheel rotor and an IGBT power-electronics cabinet - that bridges the load electrically until a separately supplied standby diesel generator set comes online.
What is the operating weight of the UPS1200S?
Not published for this single-cabinet S-generation design. Later modular 1200 kVA-class systems built from linked smaller cabinets run close to 9,185 kg (about 20,250 lb) assembled, but that multi-cabinet Z-series architecture is a different design and shouldn't be assumed to match this unit's weight. Confirm the figure from the nameplate or with your dealer.
What replaced the UPS1200S?
No direct one-for-one replacement was issued. Caterpillar carried the single-module design forward with later magnetic-bearing flywheels for lower maintenance, then grew the lineup sideways into the separate Z-series (300Z through 1200Z), which parallels smaller building-block modules for scalable, field-redundant capacity - a different architecture rather than a straight successor to the 1200S.
What UPS1200S owners discuss
What kind of machine is the UPS1200S, and is it really an "engine-generator set"?
It gets filed under engine-generator set in the parts catalog structure, but the UPS1200S is a flywheel-based uninterruptible power system, not a standalone genset you'd run a load off directly. The frame pairs a rotating flywheel energy-storage unit with a diesel engine that only starts on a utility outage. It shares its parts grouping with the UPS1000S under the same frame designation, so treat it as a UPS-flywheel product, not a prime-power generator.
How does the power handoff actually work when utility power drops?
The spinning flywheel carries the load the instant utility power is lost, giving the system a short ride-through window before anything else has to react. On these Cat/Active Power-style flywheel UPS designs that delay before the diesel engine is called to assume the load typically runs a few seconds up into the low double digits, intentionally staggered so a brief blink doesn't trigger an engine start every time. Exact timing depends on the control settings for that install, so treat any single number as a starting point, not a spec, and confirm against the site's commissioning records.
What's the real-world failure pattern people report with these engine-generator UPS units?
The consistent theme in the industry is that failures cluster in the start function, not in run operation. If the engine catches and comes up to speed, it will almost always carry through the run reliably; the weak link is cranking, fuel priming, and control logic on that first attempt after sitting idle. That's why facilities on these systems put more attention on exercised start tests than on runtime monitoring alone.
What wears out on the flywheel itself, and how often?
Depends heavily on which bearing design the unit has. Older mechanical ball-bearing flywheels need periodic lubrication and bearing replacement, commonly cited anywhere from every 3 years on the short end up to 8 years on units built for longer service life. Sealed magnetic-bearing rotors housed in a vacuum need essentially no bearing maintenance since there's no contact wear, but the vacuum pump supporting that chamber still needs an oil change roughly once a year and typically needs replacing itself somewhere in the 5 to 10 year range. Confirm which bearing type your unit actually has before planning a service interval — don't assume.
What electrical or sensor issues come up in service?
Routine items reported for this class of flywheel UPS include vacuum oil level dropping below the sight gauge, controller board backup battery needing replacement around the 5-year mark, and operator interface panels flagging firmware or status messages that need to be reviewed and cleared at each service visit. None of these are unique quirks of the ES12F/CZE frame specifically — they're standard flywheel-UPS wear items, and cabinet air filters are typically on a roughly quarterly change cycle. Because this frame is thin on published owner-facing documentation, treat any interface fault code as a call to your dealer rather than a DIY reset.
What should I check before buying a used UPS1200S?
Do a full walkaround for leaks, physical damage, and any sign of the enclosure having been opened without proper lockout. Check the vacuum oil level and site gauge condition — a low or discolored gauge points to deferred maintenance. Review the operator interface for stored fault or firmware messages rather than trusting a clean-looking display. Ask for service records covering the same items as a generator maintenance schedule: coolant and oil changes, filters, starting batteries, and bearing/vacuum-pump service history. Flywheel UPS systems are generally rated for a design life in the 15 to 20 year range, so get the unit's in-service date and weigh remaining life against asking price. Because a spinning flywheel stores real rotational energy and this frame's documentation is thin in public sources, have your dealer verify bearing condition, vacuum integrity, and engine start reliability with a witnessed test start before you commit.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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