Reliable Power protection for critical applications Features
Electric Power – Marketing Spec Sheet
Continuous Power Module
Continuous Power Module
Cat® CPM500
Reliable Power protection for critical applications
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.
CPM500 Specifications
Continuous Power Output
Operating Temperature
Storage Temperature
Dimensions (ISO 40 ft high Cube)
Operating Altitude
Noise level (Utility online)
Generator Output
Additional Non-critical Power Output
available from Generator Set*
Noise level (Generator online)
Fuel tank size (approx. 8 hours autonomy)
500 kVA (450 kW @ PF 0.9)
380/400/415 VAC 3-Phase, 4 wire plus ground
50 Hz +/- 10% max (programmable)
0 to 40°C
32 to 104°F
-25 to 70°C
-13 to 158°F
12192 x 2,438 x 2,896 mm
480 x 96 x 114 in
21400 kg
47180 lbs
Up to 1000 meters
Up to 3,281 feet
65 dBA @ 1m
700 kVA (560kW)
100 kVA*
1071 liters
85 dBA@1m
235 gallons /282 US gallons
*Based on a minimum Flywheel recharge rate, a minimum of 50kVA is required to recharge each UPS Flywheel.
Constant Power Protection system – UPS / Generator / GenStart Module
Increased reliability – GenStart module provides battery redundancy when starting the generator set
High system efficiency – Optimized systems integration and flywheel energy storage technology
Easy transport and quick deployment to site – Standard ISO container designs
(Typically one day crane hire)
Easy installation on site – Simple load cable connections points
Reduced commissioning times - Factory tested
Scalable Investment – Expandable systems as needed
Maximize usable space in building – CPM is an outside weatherproof solution
Remote Monitoring available – Via Modbus
One safe source of supply / responsibility – Engineered and factory tested by Caterpillar and fully
supported by the Worldwide Cat Dealer Network.
Cat CPM fulfills the functionalities of a Diesel Rotary UPS system.
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Electric Power – Marketing Spec Sheet
Continuous Power Module
UPS Specifications
Flywheel Type
Number of Flywheels
500iZ Series Multiple Module System (MMS)
AC Input
Maximum kVA / (kW)
Input Voltage
Input Voltage Range
Input Power Factor
Input Current at VAC (amps)
Maximum Continuous Input
Current (amps)
Maximum Non-Continuous Input
Current (amps)
500 (450)
380/400/415 VAC 3-Phase, 4 wire plus ground
+10% / -15% (programmable), +/-10% at 380 VAC
50 Hz +/- 10% max (programmable)
0.99 at rated load and nominal voltage
380 (709), 400 (674), 415 (650)
1 to 15 seconds (programmable)
Harmonic Current Distortion
Linear load
Non-linear load
<3% at 100% load
<8% with 100% load
AC Output
Output Voltage
Output Current VAC (amps)
Voltage Regulation (Steadystate)
Voltage Regulation (Transient)
Voltage Distortion (THD)
Flywheel Mode
Slew Rate
380/400/415 VAC 3-Phase, 4 wire plus ground
380 (761), 400 (723), 415 (696)
+/- 1% of nominal for +/- 10% input
+/- 1% within 50 milliseconds for 100% load step
50 Hz (mains synchronized) normal operation +/- .2% free running
<3% linear loads and <5% 100% non-linear loads
+/- 1% steady state
Adjustable from 0.2 Hz/second to 3.0 Hz/second
Overall Efficiency
Standards and Approvals
Surge Withstand
CE Mark
Meets IEEE 578 / ANSI C62.41
Page 2 of 6
Electric Power – Marketing Spec Sheet
Continuous Power Module
Generator set Specifications
Electrical Power Output
Cat® C18
700kVA Standby Power Rated 1
Engine Model
Governor Type
Fuel System
C18 ATAAC, I-6 4-stroke water-cooled diesel
18.13 L
1106.36 in
Caterpillar ADEM™ Control System
Electronic Unit Injection
Frame Size
Overspeed Capability (%)
Wave form deviation (%)
Voltage regulator
Voltage Regulation
Internal Excitation
UL 1446 Recognized Class H with tropicalization and anti-abrasion
Single phase sensing
Less than +/- 0.5% (steady state), Less than +/- 0.5% (with 3% speed change)
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 many other 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.
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Electric Power – Marketing Spec Sheet
Continuous Power Module
Standard Factory Installed & Tested Equipment
Flywheel Energy
Compact, battery free, low cost maintenance / operation
Generator friendly
Harmonic Cancellation, Voltage regulation and power factor improvement
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.
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.
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).
Louvers installed on input and output of the container.
Redundant cooling fans on UPS with speed regulation by temperature control unit.
Jacket water heater.
Coolant level sight gauge.
UPS heat discharged to engine compartment to enhance generator starting
Automatic Transfer Switch (ATS) – controlled by microprocessor-based unit.
Integrated maintenance bypass.
Convenient customer connection for continuous load and non-critical load output.
Integrated fuel system with fuel tank, primary fuel filter with integral water separator,
secondary fuel filters and fuel priming pump.
Fumes disposal.
Gear lube oil pump.
Coolant drain line with valve terminated at edge of base. Oil drain line.
Weather hood at rear doors for UPS maintenance.
Container doors location designed for easy access.
Connection points for load bank testing or rental generator connection.
Entire system is packaged in industrial type ISO container prepared for quick
handling, transport and installation on site.
Local Emergency Power Off button installed on UPS and generator control panel.
Two (2) installed on the exterior of the container at each access door.
• 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
• 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 equipment
• CSC plated via Lloyd’s register of shipping
Starting System
Control system
Communication with
Integrated System
Cooling System
Engine Coolant
Heat Recovery
Switchgear Integration
Fuel System
Lube oil
Container Packaging
Emergency Power Off
Certifications and
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Electric Power – Marketing Spec Sheet
Continuous Power Module
Optional Equipment & Service
Non-critical load power output breakers
Switchgear for customized projects
Integrated Load Bank circuit breaker for generator load testing
Fire-fighting system
Automatic fuel transfer pumps
Lower noise level
Arctic (-30 C) and tropical (+50 C) ambient temperature conditions
Factory witness test
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•S program cost effectively detects internal engine component condition, even the
presence of unwanted fluids and combustion by-products.
Standby Generator Set Rating definition
Output available with varying load for the duration of the interruption of the normal source
power. Average power output is 70% of the standby power rating. Typical operation is 200
hours per year, with maximum expected usage of 500 hours per year.
Page 5 of 6
Electric Power – Marketing Spec Sheet
Continuous Power Module
Materials and specifications are subject to change without notice. The International System of Units (SI) is used in this
publication. CAT, CATERPILLAR, their respective logos, ADEM, S•O•S, “Caterpillar Yellow” and the “Power Edge” trade
dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without
©2014 Caterpillar
All Rights Reserved
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