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CM20C Generator Set
CM20C Generator Set

CAT CM20C Generator Set

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Phone: +49 4202 91460
Service Hotline: 0800- 589 27 87
(outside of Germany: +49 40 853 151-222)


Caterpillar electric power stands for reliable energy supply. Especially during the energy system transformation, Cat generator sets close the energy gap caused by renewable energy source such as wind and photo voltaic. Short ramp up time, low operating costs and rapid maintenance times ensures a high availability according to the need of our customers. Combined heat /cool and power solutions allow our customers to maximize the efficiency and earnings paired with low emissions. Wherever power is needed around the globe, Caterpillar is able to support you with the best products and services to maximize your profit.

Product Specifications

Engine Specifications
Engine Model

CM20C, 4-stroke-engine


200.0 mm


300.0 mm



Engine Rating Range

1020 - 1710 kW


6,8,9 cylinder

Fuel Type

Diesel oil / heavy fuel oil (HFO) / crude oil

Swept Volume

9.4 l/cyl

Mean Effective Pressure Up To

24.2 bar

Specific Fuel Oil Consumption (WB I) Up To

189.0 g/kWh

Specific Fuel Oil Consumption (WB II) Up To

189.0 g/kWh

Specific Lube Oil Consumption

0.6 g/kWh

Generator Set Dimensions
Length - Minimum

6073.0 mm

Length - Maximum

7125.0 mm

Width - Minimum

1680.0 mm

Width - Maximum

1816.0 mm

Height - Minimum

2833.0 mm

Height - Maximum

3010.0 mm

Dry Weight - Genset (minimum)

18.8 kg

Dry Weight - Genset (maximum)

30.0 kg

Generator Set Specifications
Minimum Rating

985 kWe

Maximum Rating

1650 kWe

Emissions/Fuel Strategy

(WB) Stage 1 and 2


3000 to 13800 Volts

Frequency At Speed

50 Hz @ 1000 / 60 Hz @ 900

Duty Cycle

Prime, Continuous

Ready To Accept Loads (Preheated/Vented)

40 s

Normal Ramp Up To 100% Load

75 s

Emergency Ramp Up 10% To 100% Load

25 s

Genset Efficiency Up To


Power Rating
Minimum Rating

12.5 kVA

Maximum Rating

4000.0 kVA

Rated Speed

50 Hz @ 1000 rpm / 60 Hz @ 900 rpm