Caterpillarengine - generator setuninterruptible pwr su
Caterpillar ES12F
Maintenance schedule, common problems & OEM parts breakdown
The Caterpillar ES12F is not a mobile machine or a standalone commercial genset sold on its own. It is Cat's model designation for the engine-generator and flywheel cabinet built into the legacy UPS1000S and UPS1200S continuous-power Uninterruptible Power Supply systems, catalogued by Cat under the ENGINE - GENERATOR SET group. Inside a data center or critical facility, the ES12F cabinet pairs a flywheel energy-storage/clutch assembly with a backup generator so power stays continuous through a utility interruption, bridging the gap until the engine picks up load. Control runs through an EMCP4-based system with a plug-in excitation module compatible with EM10/EM15 hardware, handling the field current and voltage regulation for the unit. The model group covers three related configurations sharing the same ES12F platform: base ES12F (serial prefix CZE), and the UPS1000S (CZS) and UPS1200S (CZT) system badges. No confirmed production-year window or predecessor/successor lineage is documented for this configuration.
Legacy UPS cabinets like the ES12F remain in service for years inside facilities that cannot tolerate downtime, and data centers, hospitals, and industrial sites running these aging flywheel-UPS systems still need parts and qualified service long after the product has left current sales literature. Because Cat groups the ES12F, UPS1000S, and UPS1200S hardware together in its parts catalogs, buyers sourcing components for one of these cabinets need to confirm the exact serial prefix (CZE, CZS, or CZT) before ordering, since panel, enclosure, and control parts are filed by configuration within the shared model group. For owners and independent shops, that means serial-prefix verification is the starting point for any parts or service request on this product, not a spec sheet lookup.
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 ES12F specifications
Engine
| Configuration | Engine-generator set built into the flywheel cabinet of the UPS1000S and UPS1200S continuous-power uninterruptible power supply system. Not a standalone diesel genset sold apart from that UPS system. |
| Serial number prefix | CZE |
| Generator control | EMCP4-based control with a plug-in excitation module supplying field current for the Integrated Voltage Regulator (IVR) function |
| Engine model / displacement / cylinders | Not published in available factory literature for this cabinet configuration - verify with your dealer using the unit serial number |
| Gross/net power rating | Not independently published for the ES12F cabinet. The parent UPS system is sold under the UPS1000S and UPS1200S designations, suggesting a class in the 1000-1200 kVA range, but no source ties a confirmed ekW/kVA nameplate figure directly to ES12F - treat as unconfirmed |
| Emissions tier | Not documented for this configuration - verify with your dealer |
Weights
| Operating/shipping weight | Not published in available factory literature for this cabinet - verify with your dealer |
Dimensions
| Transport length/width/height | Not published in available factory literature for this cabinet - verify with your dealer |
Performance
| System voltage | 460 V configuration referenced for the cabinet's flywheel power-supply group |
| Travel/gradeability | Not applicable - stationary engine-generator/flywheel cabinet, not a mobile machine |
| Output rating detail | No ES12F-specific overload, voltage-regulation, or ride-through figures are published separately from the parent UPS1000S/UPS1200S system - do not borrow figures from other Cat UPS product lines, as those are separate designs |
Service capacities (summary)
| Fuel tank / engine oil / cooling system | Not published in available factory literature for this cabinet - verify with your dealer |
Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.
ES12F fluids & capacities
| System | Capacity | Recommended fluid |
|---|---|---|
| Engine crankcase (with filter) | not documented in public sources for this model — confirm exact fill volume against the serial-specific OMM before service | Cat DEO (Diesel Engine Oil), viscosity grade selected per ambient starting temperature per the standard Cat multi-viscosity oil recommendation table |
| Cooling system | not documented in public sources for this model — confirm exact fill volume against the serial-specific OMM before service | Cat ELC (Extended Life Coolant) or a Cat-approved heavy-duty coolant/antifreeze meeting Cat's water/glycol premix specification |
| Fuel tank (day tank) | not documented in public sources for this model — confirm exact fill volume against the serial-specific OMM before service | ultra-low sulfur No. 2-D diesel fuel meeting Cat's diesel fuel specification; use a winterized blend or fuel conditioner in cold climates |
| Clutch / flywheel-generator bearing lubrication (grease points) | spec only — no fill volume published | Cat multipurpose lithium-complex grease (Cat MPGM or equivalent NLGI Grade 2 EP grease) |
| Hydraulic system and tank | not applicable / not documented — this power-supply unit's published parts groupings do not show a distinct hydraulic reservoir circuit for this model | not applicable for this configuration; verify against the unit's serial-specific OMM |
| Transmission / final drives / axles | not applicable — this is a stationary engine-generator (UPS) set, not a mobile machine; it has no transmission, final drive, or axle compartments | not applicable |
Capacities are refill values from factory literature — always fill to the dipstick/sight gauge, not the number.
Caterpillar ES12F maintenance schedule
| Service interval | Tasks |
|---|---|
| Every 10 h |
|
| Every 250 h |
|
| Every 500 h |
|
| Every 1,000 h |
|
| Every 2,000 h |
|
| Every 4,000 h |
|
Servicing the ES12F beyond the schedule
Predictive Maintenance & Fluid Analysis
Track EMCP4 alarm and event history as the primary predictive signal on the ES12F cabinet, since it flags excitation, control, and generator faults before they become failures. Where the unit carries an onboard engine, pull oil and coolant samples on a fixed interval for fluid analysis rather than time-based guesswork. Monitor battery charger output and starting-battery health at every visit. No published capacity data exists for this configuration, so log actual readings against dealer-confirmed baselines instead of factory tables.
Corrective & Common Repairs
Most corrective work on the ES12F centers on the flywheel/clutch coupling, the excitation module, and EMCP4 control wiring rather than engine teardown. Loose or worn clutch hardware, degraded excitation connections, and control-panel battery faults are the recurring failure points on aging cabinets. Confirm serial prefix (CZE, CZS, or CZT) before ordering panel, enclosure, or control-station parts, since the three configurations share a parts group but are not always interchangeable component-for-component.
Overhaul & Rebuild Points
Overhaul planning on the ES12F should target the flywheel bearing and clutch engagement mechanism, generator windings, and the excitation/control module as the major wear groups, since no factory rebuild-kit or capacity data is published for this cabinet independent of the parent UPS1000S/UPS1200S system. Treat any rebuild as a dealer-scoped job: pull the unit's service history from the EMCP4 log first, then verify component compatibility against the confirmed serial prefix before sourcing replacement hardware.
Seasonal & Environment Servicing
As a stationary indoor cabinet, the ES12F is less exposed to weather extremes than mobile equipment, but enclosure seals, cable entries, and cooling airflow still need seasonal attention in facilities with variable ambient temperature or humidity. Check ventilation louvers and filters for dust loading before high-demand cooling seasons, and confirm coolant condition ahead of temperature swings where the cabinet uses liquid cooling. Inspect for corrosion at battery terminals and control connections in humid or coastal environments.
ES12F common service parts
| Part number | Part | Notes | |
|---|---|---|---|
| 240-2526 | Filter Element-Encl Air | Air intake service | Check fitment → |
| 244-4994 | Filter As-Electrical | Scheduled service item | Check fitment → |
| 244-4988 | Filter As-Electrical | Scheduled service item | Check fitment → |
| 244-4995 | 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.
ES12F attachments & work tools
Work-tool attachments
Not applicable. The ES12F is a stationary engine-generator set built into a Cat flywheel-based Uninterruptible Power Supply (UPS) frame, not a mobile earthmoving machine. It has no boom, no hydraulic work circuit, and no quick-coupler system, so no bucket, blade, hammer, or other work-tool line exists for this model.
Enclosure and guarding options
The engine-generator set is housed in a dedicated power-supply enclosure with its own guards and base group. Weather- and sound-attenuating enclosure treatment is typical for this class of packaged diesel genset, matching the acoustic/weather enclosure options offered across similarly sized Cat industrial gensets.
Cooling and fan group
A circulating fan group is fitted as part of the enclosure/guard package to manage radiator and enclosure airflow for the engine-generator set. Sizing and arrangement follow standard practice for enclosed diesel gensets in this power class.
Generator-set control panel
A dedicated generator-start control panel group governs cranking, monitoring, and start/stop sequencing of the ES12F engine-generator within the UPS system. A separate electrical panel group and circuit-board assembly handle system-level monitoring and interface with the flywheel UPS controls.
Operator station / access panel
The power-supply enclosure includes an operator-station panel arrangement providing local access to gauges and controls for the engine-generator set, consistent with factory-fitted operator stations on comparable packaged gensets.
Frame and mounting base
The engine-generator set mounts on a dedicated frame assembly built for the UPS power-supply enclosure rather than a standard skid base sold separately. This frame integrates the enclosure, guards, and control panels into one factory-assembled unit.
Fuel tank / sub-base options
Packaged diesel gensets in this size class typically offer integral or sub-base fuel tank options for extended run time, though a model-specific tank capacity for the ES12F is not confirmed in available documentation; verify configuration with your dealer.
All ES12F assemblies by section
Every catalogued assembly group for the Caterpillar ES12F. 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 |
245-1599 Board As-Circuit
| 24***99 | Board As-Circuit | 1 |
| 25***47 | Diode | 1 |
282-3659 Board As-Circuit
| 18***60 | Fuse; (2-Ampere) | 1 |
| 18***61 | Fuse; (5-Ampere) | 2 |
| 23***53 | Fuse; (5-Ampere) | 8 |
279-6656 Board As-Circuit
| 27***01 | Fuse; (3-Ampere) | 2 |
| 27***56 | Board As-Circuit | 1 |
239-9265 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 2 |
| 23***65 | Board As-Circuit | 1 |
242-7420 Board As-Circuit
| 24***20 | Board As-Circuit | 1 |
| 27***58 | Board As-Circuit | 1 |
242-9373 Board As-Circuit
| 18***61 | Fuse; (5-Ampere) | 2 |
| 24***73 | Board As-Circuit | 1 |
242-7423 Board As-Circuit
| 24***23 | 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 |
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 |
242-9376 Board As-Circuit
| 18***54 | Fuse; (20-Ampere)(Output) | 1 |
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 1 |
242-7427 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 1 |
| 24***27 | Board As-Circuit | 1 |
242-7424 Board As-Circuit
| 24***24 | 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 |
242-7422 Board As-Circuit
| 24***22 | Board As-Circuit | 1 |
242-9374 Board As-Circuit
| 20***73 | Fuse; (1-Ampere) | 2 |
| 24***74 | 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 |
256-6468 Board As-Circuit
| 20***70 | Fuse; (4-Ampere) | 1 |
| 25***68 | Board As-Circuit | 1 |
242-7421 Board As-Circuit
| 24***46 | Fuse; (3.15-Ampere) | 1 |
| 24***21 | 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 |
239-9264 Board As-Circuit
| 23***29 | Battery; (Lithium) | 1 |
| 23***64 | Board As-Circuit | 1 |
279-6655 Board As-Circuit -Controller
| 19***04 | Fuse; (3-Ampere) | 3 |
| 23***29 | Battery; (Lithium) | 1 |
| 23***53 | Fuse; (5-Ampere) | 1 |
244-8756 Board As-Circuit
| 24***56 | Board As-Circuit | 1 |
257-8287 Bus Bar As
| 25***87 | Bus Bar As | 1 |
| 25***89 | Circuit Breaker As; (1600-Ampere)(Neutral) | 1 |
244-7567 Bus Bar As
| 24***49 | Bus | 6 |
| 24***67 | Angle | 6 |
| 24***67 | Bus Bar As | 1 |
257-7943 Bus Bar As
| 25***43 | Bus Bar As | 1 |
257-8455 Bus Bar As
| 25***55 | Bus Bar As | 1 |
259-9050 Bus Bar As
| 25***50 | Bus Bar As | 1 |
257-7944 Bus Bar As
| 24***29 | Board As-Circuit | 2 |
| 25***44 | Bus Bar As | 1 |
294-2080 Bus Bar As -4-Wire
| 24***29 | Board As-Circuit | 3 |
| 29***80 | Bus Bar As; -4-Wire | 1 |
254-3922 Bus Bar As
| 25***22 | Bus Bar As | 1 |
257-8458 Bus Bar As
| 25***58 | Bus Bar As | 1 |
245-2869 Bus Bar Gp
| 24***67 | Angle | 3 |
| 24***69 | Bus Bar Group | 1 |
245-2874 Bus Bar Gp
| 24***74 | Bus Bar Group | 1 |
| 24***21 | Bus | 1 |
| 24***22 | Bus | 1 |
245-2906 Bus Bar Gp
| 24***06 | Bus Bar Group | 1 |
| 24***07 | Bar As | 1 |
| 24***08 | Bar As | 1 |
245-2866 Bus Bar Gp
| 24***43 | Bar-Bus | 1 |
| 24***44 | Bar-Bus | 1 |
| 24***45 | Bar-Bus | 1 |
245-4775 Cable Gp -Generator Start, Dual
| 24***75 | Cable Group; -Generator Start, Dual | 1 |
| 25***20 | Cable | 1 |
| 25***21 | Cable | 1 |
245-4778 Cable Gp -External Source Synchronizing
| 24***70 | Cable As | 1 |
| 24***71 | Cable As | 1 |
| 24***77 | Cable As | 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 |
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 |
258-5032 Circuit Breaker & Mounting Gp
| 25***32 | Circuit Breaker & Mounting Group | 1 |
| 25***34 | 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 |
245-2868 Circuit Breaker & Mounting Gp
| 24***24 | Circuit Breaker As; (1600-Ampere) | 1 |
| 24***68 | Circuit Breaker & Mounting Group | 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 |
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 |
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 |
245-0537 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 |
276-9057 Fuse Gp
| 24***01 | Block; (Terminal End)(Fuse) | 2 |
| 24***37 | Fuse; (2.5-Ampere) | 2 |
| 25***70 | Block | 1 |
276-9059 Fuse Gp
| 19***97 | Fuse; (3-Ampere) | 6 |
| 24***01 | Block; (Terminal End)(Fuse) | 3 |
| 24***53 | Fuse; (1-Ampere) | 3 |
245-3637 Fuse Gp -Inverter, Neutral
| 19***71 | Fuse; (63-Ampere) | 1 |
| 24***81 | Holder; (Fuse) | 2 |
| 24***97 | Switch; (Fuse) | 1 |
244-4996 Fuse Gp -Control
| 20***77 | Fuse; (200-Ampere) | 1 |
| 20***69 | Indicator; (Fuse) | 1 |
| 24***96 | Fuse Group; -Control | 1 |
294-2081 Fuse Gp
| 24***53 | Fuse; (1-Ampere) | 4 |
| 27***50 | Block-Fuse | 1 |
| 29***81 | Fuse Group | 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 |
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 |
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 |
244-8659 Panel Gp-Circuit Breaker
| 24***76 | Panel Group-Circuit Breaker | 1 |
| 24***59 | Panel Group-Circuit Breaker | 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 |
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 |
244-8660 Panel Gp-Circuit Breaker
| 24***75 | Panel Group-Circuit Breaker | 1 |
| 24***60 | 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 |
244-7575 Panel Gp-Circuit Breaker
| 24***07 | Plate | 2 |
| 24***09 | Block-Terminal; (4-Pole) | 1 |
| 24***75 | Panel Group-Circuit Breaker | 1 |
261-7479 Resistor As
| 26***79 | Resistor As | 1 |
| 26***81 | Kit-Resistor Wire; (12-Ohm, 500-Watt) | 1 |
265-5574 Resistor As
| 26***74 | Resistor As | 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 |
244-4993 Fan As-Circulating
| 24***50 | Guard-Fan; (Fan) | 1 |
| 24***94 | Fan As-Circulating | 1 |
| 24***93 | Fan As-Circulating | 1 |
243-3794 Fan As-Circulating
| 24***94 | Fan As-Circulating | 1 |
| 24***43 | Cable As; (Control) | 1 |
| 24***44 | Cable As; (Power) | 1 |
244-8753 Fan Gp-Circulating -Plenum
| 24***93 | Fan Group-Circulating; -Plenum | 1 |
| 24***53 | Fan Group-Circulating; -Plenum | 1 |
244-4991 Fan Gp-Circulating
| 24***91 | Fan Group-Circulating | 1 |
| 24***93 | Fan As-Circulating | 3 |
256-6472 Fan Gp-Circulating
| 24***93 | Fan As-Circulating | 3 |
| 25***71 | Panel As-Electrical | 1 |
| 25***72 | Fan Group-Circulating | 1 |
290-3858 Fan Gp-Circulating
| 24***93 | Fan As-Circulating | 4 |
| 29***58 | Fan Group-Circulating | 1 |
243-3792 Fan Gp-Circulating
| 24***92 | Fan Group-Circulating | 1 |
| 24***94 | Fan As-Circulating | 3 |
244-7593 Fan Gp-Circulating -Plenum
| 24***94 | Fan As-Circulating | 2 |
| 24***93 | Fan Group-Circulating; -Plenum | 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 |
294-3319 Frame As -Internal Components
| 24***84 | Panel Group-Electrical | 1 |
| 24***85 | Panel Group-Electrical | 1 |
| 24***86 | Panel Group-Electrical | 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 |
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 |
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 |
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 |
244-4981 Enclosure Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 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 |
245-2767 Enclosure Gp-Power Supply
| 24***29 | Door; (Lh) | 1 |
| 24***11 | Handle; (Door) | 2 |
| 24***23 | Plate; (Rear) | 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 |
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 |
257-4952 Enclosure Gp-Power Supply
| 25***66 | Panel; (Bottom) | 1 |
| 25***67 | Panel; (Top) | 1 |
| 25***50 | Frame As | 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 |
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 |
257-4951 Enclosure Gp-Power Supply
| 24***11 | Handle; (Door) | 2 |
| 24***16 | Screen; (Front) | 2 |
| 24***23 | Plate; (Rear) | 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 |
244-7384 Enclosure Gp-Power Supply
| 24***30 | Panel; (Main, Top) | 1 |
| 24***32 | Panel; (Subpanel, Top) | 2 |
| 24***31 | Plate; (Side, Rh) | 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 |
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 |
244-7581 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 |
244-1407 Enclosure Gp-Power Supply
| 24***06 | Fitting | 1 |
| 24***12 | Fitting | 1 |
| 24***61 | Clamp | 2 |
244-4994 Filter As-Electrical
| 24***77 | Inductor | 6 |
| 24***94 | Filter As-Electrical | 1 |
244-4988 Filter As-Electrical
| 24***88 | Filter As-Electrical | 1 |
244-4995 Filter As-Electrical
| 24***95 | Filter As-Electrical | 3 |
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 |
244-1409 Flywheel Gp-Power Supply
| 24***97 | Switch; (Fuse) | 2 |
| 24***35 | Capacitor; (1200-Volt) | 2 |
| 24***44 | Capacitor; (450-Volt) | 8 |
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 |
236-4958 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 |
236-4955 Panel Ar-Control
| 22***37 | Fuse; (63-Ampere) | 5 |
| 23***55 | Panel Ar-Control | 1 |
| 24***15 | Panel Group-Electrical; -Converter Module | 3 |
236-4957 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 2 |
| 23***50 | Bracket | 4 |
| 23***57 | Panel Ar-Control; -Generator Start, Single | 1 |
236-4956 Panel Ar-Control
| 23***48 | Panel Group-Control; -Generator Start | 1 |
| 23***50 | Bracket | 2 |
| 23***56 | Panel Ar-Control | 1 |
244-7547 Panel As-Electrical
| 24***47 | Panel As-Electrical | 1 |
| 24***39 | Cleat; (Base) | 2 |
294-2079 Panel As-Electrical
| 24***62 | Diode As; (Bridge) | 1 |
| 24***37 | Fuse Group; -Inverter, Neutral | 6 |
| 29***79 | Panel As-Electrical | 1 |
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 |
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 |
245-1678 Panel As-Electrical
| 24***22 | Board As-Circuit | 1 |
| 24***23 | Board As-Circuit | 2 |
| 24***78 | Panel As-Electrical | 1 |
256-6477 Panel As-Electrical
| 23***65 | Board As-Circuit | 1 |
| 24***07 | Headliner | 3 |
| 24***22 | Board As-Circuit | 1 |
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 |
245-2872 Panel As-Electrical
| 20***03 | Transformer; (230-Volt) | 1 |
| 24***91 | Thermistor; (10-Ohm) | 1 |
| 24***39 | Cleat; (Base) | 2 |
245-0563 Panel As-Electrical
| 20***66 | Fuse; (7-Ampere) | 2 |
| 24***03 | Fuse; (30-Ampere) | 3 |
| 24***07 | Plate | 2 |
256-6471 Panel As-Electrical
| 24***11 | Relay-Time Delay; (Back Feed Circuit) | 1 |
| 24***12 | Socket | 1 |
| 24***63 | Clip | 1 |
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 |
243-3779 Panel Gp-Electrical
| 24***79 | Panel Group-Electrical | 1 |
| 24***99 | Board As-Circuit | 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 |
244-7570 Panel Gp-Electrical
| 24***43 | Bar-Bus | 1 |
| 24***44 | Bar-Bus | 1 |
| 24***45 | Bar-Bus | 1 |
244-4998 Panel Gp-Electrical
| 24***88 | Filter As-Electrical | 1 |
| 24***89 | Contactor Group | 1 |
| 24***90 | Panel As-Electrical | 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 |
253-8959 Panel Gp-Electrical
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***65 | Fuse; (4-Ampere) | 2 |
| 20***01 | Transformer; (230-Volt) | 2 |
244-7604 Panel Gp-Electrical
| 24***74 | Transducer; (1000-Ampere) | 4 |
| 24***01 | Baffle As-Air Flow | 2 |
| 24***04 | Panel Group-Electrical | 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 |
245-0562 Panel Gp-Electrical
| 24***55 | Bar-Bus; (Ground) | 1 |
| 24***62 | Panel Group-Electrical | 2 |
| 24***63 | Panel As-Electrical | 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 |
289-4941 Panel Gp-Electrical
| 20***70 | Fuse; (4-Ampere) | 1 |
| 24***05 | Block | 1 |
| 28***41 | Panel Group-Electrical | 1 |
244-4986 Panel Gp-Electrical
| 19***99 | Fuse; (10-Ampere) | 2 |
| 20***66 | Fuse; (7-Ampere) | 2 |
| 20***67 | Fuse; (1-Ampere) | 2 |
245-0530 Panel Gp-Electrical
| 24***82 | Block-Terminal | 2 |
| 24***46 | Fuse; (3.15-Ampere) | 5 |
| 24***52 | Fuse; (15-Ampere) | 1 |
243-3795 Panel Gp-Electrical
| 24***07 | Handle | 1 |
| 24***18 | Panel | 1 |
| 24***29 | Switch-Push Button; (Transformer Temperature Status) | 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 |
244-4504 Panel Gp-Electrical
| 22***36 | Board As-Circuit; (Dc Interface) | 1 |
| 24***45 | Resistor | 4 |
| 24***04 | Panel Group-Electrical | 1 |
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 |
245-2871 Panel Gp-Electrical
| 24***66 | Bus Bar Group | 1 |
| 24***68 | Circuit Breaker & Mounting Group | 1 |
| 24***69 | Bus Bar Group | 1 |
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 |
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 |
240-2736 Panel Gp-Electrical
| 24***67 | Capacitor; (1200-Volt) | 2 |
| 24***68 | Capacitor; (500-Volt) | 4 |
| 24***22 | Shroud | 1 |
289-4942 Panel Gp-Electrical
| 23***65 | Board As-Circuit | 1 |
| 24***07 | Headliner | 3 |
| 24***22 | Board As-Circuit | 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 |
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 |
244-8746 Panel Gp-Electrical
| 24***74 | Transducer; (1000-Ampere) | 4 |
| 24***01 | Baffle As-Air Flow | 2 |
| 24***46 | Panel Group-Electrical | 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 |
240-1898 Panel Gp-Electrical
| 23***53 | Capacitor | 2 |
| 23***57 | Fuse; (0.25-Ampere) | 2 |
| 23***59 | Relay; (24-Volt)(Control Panel) | 2 |
245-0539 Panel Gp-Electrical
| 24***34 | Transformer As | 1 |
| 24***37 | Fuse Group; -Static Switch | 1 |
| 24***39 | Panel Group-Electrical | 2 |
245-2805 Panel Gp-Electrical
| 24***91 | Thermistor; (10-Ohm) | 1 |
| 24***22 | Transformer | 1 |
| 24***05 | Panel Group-Electrical | 1 |
259-1395 Panel Gp-Electrical
| 24***72 | Panel Group-Electrical | 1 |
| 24***06 | Bus Bar Group | 1 |
| 25***95 | Panel Group-Electrical | 1 |
243-3791 Panel Gp-Electrical
| 24***08 | Block | 1 |
| 24***22 | Board As-Circuit | 1 |
| 24***74 | Board As-Circuit | 1 |
245-0540 Panel Gp-Electrical
| 24***40 | Panel Group-Electrical | 2 |
243-3793 Panel Gp-Electrical
| 23***66 | Board As-Circuit | 1 |
| 24***93 | Panel Group-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 |
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 |
245-1220 Panel Gp-Electrical
| 24***56 | Board As-Circuit | 1 |
| 24***20 | 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 |
240-2515 Panel Gp-Electrical -Converter Module
| 24***15 | Panel Group-Electrical; -Converter Module | 1 |
| 26***36 | Board As; (Field Coil Driver) | 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 |
290-3815 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 1 |
246-2037 Panel Gp-Power Supply
| 24***37 | Panel Group-Power Supply | 1 |
| 25***52 | 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 |
244-5000 Panel Gp-Power Supply
| 24***31 | Panel | 1 |
| 24***55 | Plate | 1 |
| 24***24 | Board As-Circuit | 2 |
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 |
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 |
237-9362 Panel Gp-Power Supply
| 23***62 | Panel Group-Power Supply | 1 |
| 24***01 | Panel Group-Power Supply | 3 |
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 |
259-7070 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***26 | Filter Element-Encl Air | 2 |
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 |
253-8962 Panel Gp-Power Supply
| 24***81 | Enclosure Group-Power Supply | 1 |
| 25***62 | Panel Group-Power Supply | 1 |
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 |
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 |
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 |
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 |
245-8341 Panel Gp-Power Supply
| 24***41 | Panel Group-Power Supply | 1 |
| 25***53 | Panel Group-Power Supply | 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 |
257-8452 Panel Gp-Power Supply
| 24***11 | Handle; (Door) | 1 |
| 24***16 | Screen; (Front) | 2 |
| 24***24 | Ring | 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 |
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 |
237-9347 Power Gp-Uninterruptible
| 23***47 | Power Group-Uninterruptible | 1 |
| 24***79 | Enclosure Group-Power Supply | 1 |
| 24***81 | Enclosure 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 |
237-9348 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 |
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
Parts Group-Miscellaneous
| 20***70 | Fuse; (4-Ampere) | 3 |
| 24***11 | Relay-Time Delay; (Back Feed Circuit) | 1 |
| 24***28 | Board As-Circuit | 1 |
244-8664 Parts Gp-Miscellaneous
| 18***61 | Fuse; (5-Ampere) | 20 |
| 19***71 | Fuse; (63-Ampere) | 5 |
| 19***99 | Fuse; (10-Ampere) | 10 |
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 |
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 |
244-8663 Parts Gp-Miscellaneous
| 18***46 | Kit-Pump; (Vacuum) | 1 |
| 24***65 | Ring | 4 |
| 24***00 | Connector | 1 |
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 |
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 |
ES12F serial number reference
The ES12F is a flywheel-type uninterruptible power supply, catalogued under the engine-generator set product group alongside its UPS1000S and UPS1200S badge variants. The flywheel cabinets act as a kinetic-energy DC power store, replacing or supplementing chemical battery banks, and the unit is typically paired with a standby generator for extended outages. The PIN/serial plate sits on the power-supply enclosure or control-panel frame of the cabinet. Read the first 3 characters as the prefix, identifying the build configuration, and the digits after as the sequential unit number within that prefix run.
| Prefix | Identifies | Notes |
|---|---|---|
| CZE | Base ES12F uninterruptible power supply (flywheel UPS) | Serial range starts CZE00001-UP, open-ended (no end serial documented). Appears consistently across the ES12F operation and maintenance manual and multiple parts-catalog group listings for the ES12F/UPS1000S/UPS1200S product group. |
| CZS | UPS1000S configuration (same ES12F model group) | Serial range starts CZS1-UP. Tied to electrical panel, enclosure, and control-station parts filed under the shared ES12F/UPS1000S/UPS1200S model group. Exact one-to-one mapping to the UPS1000S kVA size is not documented in a standalone spec sheet; confirm with dealer which unit size this prefix covers. |
| CZT | UPS1200S configuration (same ES12F model group) | Serial range starts CZT1-UP, listed alongside CZS1-UP on the same enclosure and remote-status panel records under the ES12F group. Exact one-to-one mapping to the UPS1200S kVA size is not documented in a standalone spec sheet; confirm with dealer which unit size this prefix covers. |
Frequently asked questions
What does the Caterpillar ES12F do and what type of product is it?
The ES12F is Caterpillar's engine-generator and flywheel cabinet used inside the UPS1000S and UPS1200S continuous-power Uninterruptible Power Supply systems. It is a stationary facility backup-power product, not a mobile machine or a standalone commercial genset - it combines a flywheel energy-storage/clutch assembly with a backup generator to keep power continuous through a utility outage, controlled by an EMCP4-based system.
What is the ES12F's power output or configuration range?
An exact ekW/kVA nameplate rating is not independently published for the ES12F cabinet itself. It is sold as part of the UPS1000S and UPS1200S systems, which suggests a class in that general power range, but no confirmed factory figure ties directly to ES12F - verify the exact rating for your unit with a Cat dealer using the serial number.
What serial prefixes and configurations exist for the ES12F?
Three serial prefixes share the ES12F model group: CZE for the base ES12F configuration, CZS for the UPS1000S system configuration, and CZT for the UPS1200S system configuration. All three are catalogued together under the ES12F engine-generator set group, so confirm the exact prefix on your unit before ordering parts.
What ES12F owners discuss
How does the flywheel actually bridge the gap when utility power drops?
The ES12F engine-generator set is the diesel half of a flywheel-based UPS (UPS1000S/UPS1200S). While mains power is present, the motor/generator spins the flywheel and keeps kinetic energy stored. On a utility loss the stored inertia in that flywheel discharges through the motor/generator to keep output unbroken while the diesel engine spins up and a clutch brings it online to carry the load. Ride-through time before the engine must be online is short, on the order of several seconds, and the exact figure varies by configuration and load. No battery bank is involved in this design, which is the whole point of a flywheel UPS over a battery UPS.
What's the known behavior of the clutch between the flywheel/motor-generator and the diesel engine?
This class of unit uses an electromagnetic or freewheel-type clutch to couple the diesel engine to the flywheel/motor-generator shaft once the engine reaches speed. It's built to be self-lubricating and low-maintenance, engaging automatically without operator input. Field experience with this style of coupling says to watch for abnormal vibration or delayed engagement at scheduled service intervals, since a slow or rough engagement is usually the first sign of wear rather than an outright failure. Have your dealer verify clutch engagement time and condition during scheduled UPS service.
What's the real service-life concern with the flywheel bearings?
Flywheel bearings on this type of continuously-spinning unit are the highest-cost wear item over the machine's life. They see constant rotation, not just start/stop duty, so wear tracks total spin hours and start-cycle count more than calendar age. When they do need replacement it's a major job, comparable in scope to an engine overhaul, involving disassembly, balancing, and recommissioning of the flywheel assembly. Budgeting and scheduling this work early avoids an unplanned outage. Have your dealer verify bearing hours and condition against the maintenance record for your specific unit.
What cooling and enclosure issues come up with this kind of stationary genset?
The ES12F sits in an enclosed power-supply cabinet with its own circulating fan group for engine cooling, since this is a stationary indoor/data-center unit rather than an open mobile machine. Common field checks are coolant level and temperature at the engine, condition of the circulating fan group, and the integrity of the enclosure's weather and acoustic sealing if the installation is sound-attenuated. Corrosion or a compromised enclosure seal is usually a facility-environment issue (humidity, poor ventilation) rather than a defect in the unit itself.
What electrical and control-panel issues show up on these units?
The control and monitoring side runs through a touchscreen operator interface with programmable I/O contacts and remote monitoring, plus the switchgear's protection relays for over/under-voltage and other trip functions. The most commonly reported nuisance is trip relays set too tight, causing alarms or trips that aren't a real fault condition, rather than a hard component failure. Emergency Power Off (EPO) circuits, local and remote, should be functionally tested on a routine schedule since they're safety-critical and rarely exercised otherwise. Have your dealer verify EPO circuit function and trip-relay setpoints as part of scheduled service.
Is there much independent owner/operator discussion of the ES12F online?
Not much, and that's expected. This is a stationary engine-generator set built specifically into Cat's UPS1000S/UPS1200S flywheel UPS product, sold into data-center and critical-facility installations and serviced by the dealer network rather than owned/operated like mobile construction equipment. There isn't a meaningful base of independent enthusiast or owner-operator discussion the way there is for dozers, loaders, or standalone gensets. Anyone maintaining one should lean on factory documentation and dealer service history for the specific serial rather than general forum consensus.
What should I check before buying or taking over a used ES12F unit?
Confirm the serial prefix on the nameplate matches the documented ES12F/UPS1000S/UPS1200S group and pull the full service history tied to that serial. Ask for flywheel spin hours and start-cycle count, not just engine hours, since bearing wear tracks the former. Get records of the last bearing service or overhaul and any clutch inspection. Request a functional/load test showing clean switchover behavior, stable output, and normal alarm behavior under a simulated utility-loss event. Inspect the enclosure and cooling/fan group for corrosion or sealing damage, and confirm the control panel and EPO circuits test out correctly. Because this is specialized critical-power equipment rather than general resale machinery, a pre-purchase inspection by a Cat dealer familiar with the UPS product line is worth arranging rather than relying on a visual check alone.
Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.
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