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The Cat XQ125 is powered by a C 4.4 ACERT™ industrial diesel engine offering the perfect balance of durability, efficiency and low emissions. With advanced research and development techniques, the after treatment system is precisely matched to the engine ensuring performance is optimized for maximum productivity.


  • Rating 100 ekW (110 kVA) Prime 100 ekW (110 kVA) Prime
  • Frequency 60 Hz 60 Hz
  • Voltage 120 - 480 V 120 - 480 V


  • Engine C4.4 ACERT Diesel Engine C4.4 ACERT Diesel Engine
  • Fuel Diesel Diesel


  • Width 49.0 in 1244.6 mm
  • Height 73.0 in 1854.2 mm
  • Length 127.0 in 3225.8 mm
  • Weight 5230.0 lb 2372.3 kg

Design Criteria

• Meets ISO 8528 transient response and linearvibration

Single-source Supplier

• Package is factory designed and production tested

Diesel Exhaust Fluid (DEF) System

• DEF tank provides more than 24 hrs runtime@ 75% load.

Cat EMCP 4.2B Control Panel

• Electronic control panel provides power metering,protective relaying, engine and generator parameterviewing, and expanded AC metering

Fuel System

• Provides 24-hour runtime @ 75% prime

Reduced Environmental Impact

• 110% spill containment of onboard enginefluids

Cooling System

• Provides 50°C ambient capability @ full rating

Charging System

• Charging alternator; 12V-100A, heavy duty withintegral regulator and belt guards

XQ125 Standard Equipment

Engine Air Inlet

  • Heavy-duty air cleaner with dust cup andservice indicator

DEF System

  • 25 gal (96 L) plastic DEF tank providescapacity to meet or exceed fuel tank runtimeat any given load.

Fuel System

  • 150 gal (568 L) double-wall fuel tank

Mounting System

  • Generator set soft mounted to the heavy duty, fabricated steel base frame

Control Panel

  • EMCP 4.2B generator set mounted digital controller

Cooling System

  • Variable speed pusher fan

Distribution System

  • Separate load and control sections


  • Sound attenuating, galvanized sheet metal enclosure limits overall noise


  • Cat C9 ACERT heavy duty diesel engine

Exhaust System

  • Integrated spark arresting silencer with flexible connectors, in separate compartment


  • LC5114J frame, three-phase, random wound, 12-lead design, self-excited, 2/3 pitch

Lube System

  • On-engine primary and secondary oil filters, filler, and dipstick

Starting System

  • Single electric starting motor, 24V

Shore Power

  • One 110V shore power connection for powering engine block heater and generator space heater (optional), battery charger (optional), and single duplex service receptacle

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