D400 GC C13 (60 Hz) | 400 kW Diesel Generator

Diesel Generator Sets D400 GC

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Key Specs

Maximum Rating
400 ekW
400 ekW
Minimum Rating
400 ekW
400 ekW
Emissions/Fuel Strategy
EPA Stationary Emergency
EPA Stationary Emergency


400 ekW Diesel Generator Set

The D400 GC diesel generator sets have been developed to meet your needs in standby applications. Producing reliable power of 400 ekW at 60 Hz, each generator set has been designed to meet ISO 8528-5 transient response requirements and built to accept 100 % rated load in one step. Our D400 GC generator sets are engineered to EPA Stationary Emergency (Tier 3) emissions standards.


Saves up to 31% Installed Space

Requires less space for installation; leaves more room for your on-going operations

Weighs up to 19% Less

Easier handling; less structural reinforcement required to support genset weight

Standard 105 or 130°C Alternator Temperature Rise

Meets most all specifications; ensures long alternator life

Product Specifications for D400 GC

Maximum Rating 400 ekW 400 ekW
Minimum Rating 400 ekW 400 ekW
Emissions/Fuel Strategy EPA Stationary Emergency EPA Stationary Emergency
Voltage 480 to 600 Volts 480 to 600 Volts
Frequency 60 Hz 60 Hz
Speed 1800 rpm 1800 rpm
Duty Cycle Standby Standby
Engine Model Cat® C13 In-line 6, 4-cycle diesel Cat® C13 In-line 6, 4-cycle diesel
Bore 5.1 in 130 mm
Stroke 6.2 in 157 mm
Displacement 763 in³ 12.5 B
Compression Ratio 16.3:1 16.3:1
Aspiration Turbocharged Air-to-Air Aftercooled Turbocharged Air-to-Air Aftercooled
Fuel System MEUI MEUI
Governor Type ADEM™A4 ADEM™A4
Length - Maximum 182.8 in 4625 mm
Width - Maximum 64.2 in 1630 mm
Height - Minimum 80.3 in 2039 mm
Height - Maximum 96.7 in 2456 mm
Dry Weight - Genset (minimum) 7330.4 lb 3325 kg
Dry Weight - Genset (maximum) 4107 lb 9054.4 kg

D400 GC Standard Equipment

Air Inlet System

  • Air cleaner - Non canister, disposable
  • Aftercooler core
  • Turbocharger

Control Panel

  • GCCP 1.2

Cooling System

  • Blower fan and fan drive with guards
  • Coolant drain valve
  • Radiator sight gauge
  • Radiator, package mounted
  • Jacket water pump, gear driven, centrifugal
  • Thermostats and housing

Exhaust System

  • Exhaust manifold - dry

Fuel System

  • Primary fuel filter w/integral water separator and secondary filter, spin on
  • Engine fuel transfer pump
  • Fuel cooler
  • Fuel priming pump
  • Integral tank base, 24 hours, UL142

Generator Set

  • All protective devices and control functions simulated and checked
  • Complete system designed & built at ISO 9001:2000 certified facilities
  • Factory tested to design specifications at full load conditions

Generators and Generator Attachments

  • Insulation system, Class H
  • IP23 Protection
  • Standard winding protection for non-harsh environments with relative humidity ? 95%
  • 6 Leads
  • Terminal box, IP22 RHS facing, bottom cable entry
  • Easy access to AVR and terminals
  • Brushless, self-excited 2/3 pitch (600V uses Internal excitation (IE))
  • Voltage regulator (single phase sensing)

Governing System

  • Cat electronic governor (ADEM A4)

Lube System

  • Fumes disposal to front of radiator
  • Lubricating oil, CK-4 (10W-30)
  • Oil cooler
  • Shallow oil pan
  • Oil filler and dipstick
  • Oil filter, spin on
  • Oil drain with valve

Mounting System

  • Captive linear vibration isolators between base and engine-generator
  • Includes lifting provisions and termination points for coolant and lube oil drain lines


  • Safety shutoff - Low oil pressure
  • Safety shutoff - High water temperature
  • Safety shutoff - Overspeed

Starting/Charging System

  • 24-volt electric starting motor
  • 24V, 45 Amp Charging alternator


  • Lifting eyes
  • Vibration damper
  • Parts book

D400 GC Optional Equipment

Air Inlet System

  • Air cleaner (Non canister disposable)

Bases, Mounting & Fuel Tanks

  • Audio & visual fuel alarm (@90% fuel level)
  • Integral tank base, 24 hours, UL142
  • 5 Gallon Spill Containment
  • Fuel tank pill pipe & lockable cap
  • Overfill prevention valve
  • Wide Base - Skid

Circuit breaker

  • 1200A LSI
  • 1200A LS/I
  • 600A LS/I
  • 400A LS/I
  • 800A LS/I
  • 600A LSI
  • Auxiliary contacts
  • 800A LSI
  • 400A LSI

Control System

  • Twist release, Red button emergency stop
  • Ground fault relay
  • Volt free contacts
  • Audible alarm Gp
  • 16 -light NFPA 99/110 Annunciator
  • 20A GFCI (Ground Fault Circuit Interrupter)
  • 100A Load center
  • Product link remote monitoring hardware


  • AC & DC Source lights
  • E-Stop
  • Sound attenuated Level 2 enclosure (White)

Exhaust System

  • 8" Muffler - 25 dBA attenuation
  • Manifold and turbocharger guards
  • Flexible exhaust connection


  • Space heater
  • Permanent magnet excitation (PMG) generator

Circuit breakers

  • 4 Pole (IEC-100% rated) Circuit breaker - Motorised
  • Circuit breaker (IEC) Auxiliary contacts
  • Shunt trip for IEC circuit breaker

Starting System

  • Oversize battery set, 1400 CCA, 200 amp/hr
  • Standard battery set: 1000 CCA, 90 amp/hr.
  • Jacket water heater
  • Battery charger (UL Certified)


  • Generator test report
  • Extended Service Coverage
  • UL2200 Certification
  • CSA Certification

starting / Charging System

  • Jacket water heater
  • Battery disconnect switch

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Service Agreement (Cat® CVA & LTSA)

Every piece of Cat equipment is designed and built to provide maximum productivity and operating economy throughout its working life. Your Cat dealer can help you maintain that built-in value through a Customer Value Agreement (CVA).

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