DG250 (3-Phase)

Efficient power for changing operating demands

The Cat® DG250 gas generator set supports demand response and other non-emergency applications where operating efficiency matters. Its low fuel inlet pressure design helps simplify installation across a variety of operating conditions.

Caterpillar is leading the power generation marketplace with Power Solutions engineered to deliver unmatched flexibility, expandability, reliability, and cost-effectiveness.

Equipment Highlights

Lean-burn engine technology

The Cat CG18 engine combines a robust high-speed block design with lean-burn operation for efficient, economic performance.

Strong motor-starting

Designed to start large, connected motor loads during a power outage, the generator set handles demanding electrical loads.

Compact in-line design

A smaller design makes the generator set easier to install when space is limited.

Class H alternator insulation

Class H insulation supports alternator durability for reliable operation over its service life.

Expandable Cat® ECS controls

User-friendly controls, expansion modules and custom programming accommodate a wide range of installation requirements.

Highly efficient cooling

The cooling system is designed to operate in standard ambient temperatures up to 50°C (122°F).

Specs + Downloads

Specs

Engine Model: Cat® CG18 In-line 6, 4-cycle Natural Gas
Fuel System: Gas mixer, Venturi
Aspiration: Turbocharged - Air-to-Air Aftercooled
Governor Type: Electronic
Displacement: 1106.3 in³
Compression Ratio: 10.5:1
Bore: 5.7 in
Stroke: 7.2 in
Length: 154 in
Width: 73 in
Height: 82 in
Weight: 10721 lb
Frequency: 60 Hz
Natural Gas Rating: 250 ekW
Emissions/Fuel Strategy: U.S. EPA Non-Emergency Certified
RPM: 1800
Duty Cycle: Demand Response
Voltage: 208 - 600 VAC