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CPM250S Standard Equipment

Flywheel Energy Storage
  • Compact, battery free, low cost maintenance / operation

Starting System
  • GenStart module provides up to 1725 cold cranking amps @ 24 VDC and is redundant to the generator set starting batteries for highest system reliability. Battery charger integrated.

Control system
  • LCD monitor/control HMI panel installed on UPS/ATS/Generator set. Monitoring and alarms for critical components with self-diagnostics. Two (2) warning tower lights installed on exterior of container.

Communication with Integrated System
  • Integral modem for remote communication. MODBUS (RTU or TCP/IP). Remote notification and monitoring via Ethernet and e-mail. RS232 or RS485 serial connection. Real-time monitoring software available (UPS View / EMCP Monitoring Software).

Cooling System
  • Louvers installed on input and output of the container. Redundant cooling fans on UPS with speed regulation by temperature control unit.

Engine Coolant System
  • Jacket water heater. Coolant level sight gauge.

Switchgear Integration
  • Automatic Transfer Switch (ATS) – controlled by microprocessor-based unit. Integrated maintenance bypass. Convenient customer connection for continuous load and non-critical load output. Fuel System Integrated fuel system with fuel tank, primary fuel filter with integral water separator,

Fuel System
  • Integrated fuel system with fuel tank, primary fuel filter with integral water separator, secondary fuel filters and fuel priming pump.


The Cat® CONTINUOUS POWER MODULE (Cat CPM) provides constant power protection against surges, sags, and power interruptions that can disrupt operations or cause loss of valuable data or system capacity. Caterpillar engineers have designed the CPM for best reliability and space utilization, and optimized all critical components such as the Generator Set, a high efficient Uninterruptible Power Supply (UPS) and an Automatic Transfer Switch (ATS) as a complete Cat product. In the event of a utility power failure, the Flywheel will maintain the UPS output until the generator has started and the ATS has transferred to the generator supply.

CPM250 Specifications

Continuous Power Output 250 kVA (225 kW @ PF 0.9) 250 kVA (225 kW @ PF 0.9) Less
Dimensions (ISO 20 ft High Cube) 6058 x 2,438 x 2,896 mm / 239 x 96 x 114 in 6058 x 2,438 x 2,896 mm / 239 x 96 x 114 in Less
Frequency 50 Hz +/- 10% max (programmable) 50 Hz +/- 10% max (programmable) Less
Noise Level - Generator Online 85 dBA@1m 85 dBA@1m Less
Voltage 380/400/415 VAC 3-Phase, 4 wire plus ground 380/400/415 VAC 3-Phase, 4 wire plus ground Less
Weight 14000 kg / 31000 lbs 14000 kg / 31000 lbs Less

Generator Set Specifications

Displacement 762.8 in³ 12.5 l Less
Electrical Power Output 400 kVA Standby Power Rated 400 kVA Standby Power Rated Less
Engine Model C13 ATAAC, I-6 4-stroke water-cooled diesel C13 ATAAC, I-6 4-stroke water-cooled diesel Less
Fuel System MEUI™ MEUI™ Less
Generator Excitation Self-Excitation Self-Excitation Less
Generator Frame Size LC6114B LC6114B Less
Generator Voltage Regulation +/- 0.5% (steady state) +/- 0.5% (steady state) Less
Generator Voltage Regulator Single phase sensing (Optional 3 Phase sensing) Single phase sensing (Optional 3 Phase sensing) Less
Governor Type ADEM™A4 ADEM™A4 Less
Model Cat C13 Cat C13 Less

UPS Specifications

AC Output Current VAC (amps) 380 (380), 400 (361), 415 (348) 380 (380), 400 (361), 415 (348) Less
AC Output Frequency 50 Hz (mains synchronized) normal operation 50 Hz (mains synchronized) normal operation Less
AC Output Voltage 380/400/415 VAC 3‐Phase, 4 wire plus ground 380/400/415 VAC 3‐Phase, 4 wire plus ground Less
Certifications EN64040‐1‐1, EN59001‐3, CE Mark EN64040‐1‐1, EN59001‐3, CE Mark Less
Input Voltage 380/400/415 VAC 3‐Phase, 4 wire plus ground 380/400/415 VAC 3‐Phase, 4 wire plus ground Less
Input Voltage Range +10% / ‐15% (programmable), +/‐10% at 380 VAC +10% / ‐15% (programmable), +/‐10% at 380 VAC Less
Maximum Continuous Input 400 400 Less
Maximum kVA / (kW) 250 (225) 250 (225) Less

Cat Diesel Engine

  • Reliable, rugged, durable design
  • Field-proven in thousands of applications worldwide
  • Four-stroke-cycle diesel engine combines consistent performance and excellent fuel economy with minimum weight
  • Generator

  • Matched to the performance and output characteristics of Cat engines
  • Industry leading mechanical and electrical design
  • Industry leading motor starting capabilities
  • IP 23 Protection
  • Certification and Standards

     EU Certificate of Conformance  2006/42/EC Machinery Directive (MD)  2006/95/EC Low Voltage Directive (LV)  89/336/EEC EMC Directive  EN 12601 Reciprocating internal combustion engine driven generating sets  EN 61439 Low voltage switchgear and control gear assemblies  EN 62040-1 Uninterruptible Power Systems (UPS) – General and safety requirements for UPS  EN 60204 Safety of machinery – Electrical equipment of machines  2000/14/EC Noise emission by outdoor

    World Wide Product Support

     Cat Dealers provide extensive post sale support including maintenance and repair agreements.  One single service contract for the complete Cat CPM  Cat dealers have over 1,800 dealer branch stores operating in 200 countries.  The Cat S•O•SSM program cost effectively detects internal engine component condition, even the presence of unwanted fluids and combustion by-products

    UPS Generator Set Integration

    By cancelling harmonic distortion, the UPS operates seamlessly with the generator set to provide a higher total electrical load capacity without oversizing the generator set. Cat UPS effectively insulates the generator set from block loads and transient, and can improve its fault clearing capabilities. The CPM is factory tested and all programmable integration parameters adjusted at factory that assures greater system reliability and improves the total system operation.

    UPS Lower Operating Cost

    Caterpillar's high operating efficiency (>97%) means yearly savings versus traditional battery UPS products. In addition, lower Cat UPS heat rejection reduces up front HVAC costs and electrical consumption over the life of the product.

    UPS Superior Design

    Superior system design and the use of robust digital components throughout the system yield the most reliable and trouble-free UPS system on the market. Protection is delivered in the industry's smallest package with the highest efficiency and superior performance.

    Automatic Transfer Switch

    A 4-pole, Open Transition Automatic Transfer Switch will switch the load between the utility source and the generator. It is fully rated to the generator output and incorporates convenient customer connections for Continuous and Non-critical load. Connection points are also available for load bank testing or a rental generator set.

    Why Choose Cat® Electric Power?

    Caterpillar offers a comprehensive variety of electric power systems, customised to fit your needs. Our specialised systems deliver high power and performance in industries across the globe. With Caterpillar, you get outstanding manufacturing quality, expert support, and the essential tools and applications to complete any project.

    Learn More About Electric Power

    EMCP 4 Generator Set Controls

    Cat generator sets provide a complete factory-built solution with fully featured standard and advanced controls. Optional accessories enhance the capabilities of the genset package-mounted control system.

    Learn More

    Application Center

    Explore valuable resources for generator sizing, specification, and training materials. SpecSizer evaluates load types, collects data, and organises it to help you select the generator set that's best for you. Find product comparisons, technical data, product sizing, and more using our technical information portal (TIP) specifically created for consultants, architects, engineers, and owners.

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