DE660 GC (50 Hz) | 660 kVA Diesel Generator

Diesel Generator Sets DE660 GC (50 Hz)

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Key Specs

Maximum Rating
660 kVA
660 kVA
Minimum Rating
660 kVA
660 kVA
Emissions/Fuel Strategy
Non Regulated
Non Regulated


660 kVA Diesel Generator Set

Producing reliable power 660 kVA at 50 Hz, our DE660 GC generator set powerd by C15 diesel engine designed to ISO 8528-5 transient response requirements.


Integrated Cat® Product Link™ Control System

  • Track Genset Health and Operation Parameters
  • Genset Utilization and Performance Tracking

Remote Connectivity 24/7/365 Monitoring

Cat Connect option ensures your generator set is always ready to start and perform as expected

Optimised for 5% Lower Fuel Consumption

Longer run times between fuel fills; reduced operating costs

Product Specifications for DE660 GC (50 Hz)

Maximum Rating 660 kVA 660 kVA
Minimum Rating 660 kVA 660 kVA
Emissions/Fuel Strategy Non Regulated Non Regulated
Voltage 380 to 415 Volts 380 to 415 Volts
Frequency 50 Hz 50 Hz
Speed 1500 rpm 1500 rpm
Duty Cycle Standby Standby
Engine Model C15 In-line 6, 4-cycle diesel C15 In-line 6, 4-cycle diesel
Bore 5.4 in 137 mm
Stroke 6.8 in 171 mm
Displacement 928 in³ 15.2 l
Compression Ratio 16.1:1 16.1:1
Aspiration Turbocharged Air-to-Air Aftercooled Turbocharged Air-to-Air Aftercooled
Fuel System EUI EUI
Governor Type Adem™A4 Adem™A4
Length - Maximum 131 in 3328 mm
Width - Maximum 60.6 in 1540 mm
Height - Maximum 86.1 in 2187 mm
Dry Weight - Genset (maximum) 8364 lb 3794 kg

DE660 GC (50 Hz) Standard Equipment


  • Cat® C15 Inline 6 cylinder, 4 stroke diesel

Air Inlet

  • Air cleaner

Control Panels

  • GCCP 1.1


  • Mechanical governor


  • Package mounted radiator


  • A Frame standard alternator

Fuel Storage

  • Single wall 8 hour fuel tank

Cooling System

  • Radiator and cooling fan with guards
  • Fan drive, battery charging alternator drive


  • Fuel priming pump
  • Primary fuel filter with integral water separator
  • Secondary fuel filters

Electrical Options

  • 3 Pole Circuit breaker
  • Neutral earth link
  • 24 Volt battery with rack and cables

Air inlet system

  • Air cleaner; light duty with disposable element


  • Matched to the performance and output characteristics of Cat engines
  • Load adjustment module provides engine relief upon load impact and improves load acceptance and recovery time
  • IP23 Protection

Lube system

  • Lubricating oil
  • Oil drain line with valve

Mounting system

  • Captive linear vibration isolators
  • Lifting provision and drag points


  • Engine and alternator pre paint, Caterpillar yellow
  • Engine and alternator pre paint, Caterpillar yellow

Power Termination

  • Busbar

Generator and Attachments

  • Power center, IP22
  • Segregated low voltage (AC/DC) wiring panel
  • Optional LC Frame generator - IP23 Protection
  • Integrated voltage regulator (IVR)
  • Mandatory option circuit breaker, IEC, 3 pole, mounted in power centre


  • Rubber vibration isolators

Governing System

  • Cat electronic governor (ADEM A4).

Lube System

  • Oil cooler
  • Oil drain valves

Mounting System

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

DE660 GC (50 Hz) Optional Equipment

Control panel

  • PLG 4G/3G/Ethernet
  • Annunciator
  • Emergency E-Stop


  • Industrial, residential, critical mufflers


  • Cat GC enclosure


  • Oversize and premium generators
  • Excitation: [ ] Permanent magnet excitation (PMG) Excited (PM) [ ] Internally Excited (IE)
  • Anti-condensation heater

Electrical Options

  • 4 Pole Circuit breaker
  • Auxiliary contacts
  • Padlockable circuit breaker
  • Battery charger
  • Wet battery

Power Termination

  • Circuit breakers, UL listed
  • Circuit breakers, IEC compliant


  • Space heater
  • AVR

Generator and Attachments

  • Oversize A Frame generator
  • LC frame generator
  • LC frame CIP generator
  • Ingress protection
  • CIP A Frame generator
  • Permanent magnet excitation (PMG) generator
  • Oversize LC frame generator
  • Space heaters


  • Oversize batteries
  • Charging alternator
  • Jacket water heater
  • Battery chargers
  • Heavy duty starting system
  • 24 Volt battery with rack and cables

Air inlet system

  • Single stage air filter
  • Dual element air filter


  • EU Certificate of Conformance (CE)
  • EAC Certification


  • The following options are based on regional and product configuration:
  • Sound attenuated, weather protective or high ambient weather protective enclosure
  • UL 2200 package
  • CSA Certification
  • Narrow, wide or skid base
  • EEC Declaration of Conformity
  • EU Certificate of Conformance (CE)
  • Single or dual wall sub-base fuel tanks
  • Single or dual wall integral fuel tanks
  • Automatic transfer switches (ATS)
  • Integral & sub-base UL listed dual wall fuel tanks
  • Seismic Certification per applicable building codes: IBC 2000, IBC 2003, IBC 2006, IBC 2009, CBC 2007

Extended service coverage

  • 3, 4, 5 and 10 Years


  • High ambient sound attenuated enclosures
  • Sound attenuated enclosures

Exhaust System

  • Industrial silencer
  • 10 dBA Attenuation silencer
  • 6 and 8 inch elbow kit
  • Flexible exhaust fittings
  • 6 and 8 inch flange GP
  • Manifold and turbocharger guards
  • End in/end out mufflers - 10, 25 and 35 dBA attenuation
  • Engine mounted muffler

Fuel System

  • Dual wall 8 hour fuel tank
  • Single wall 8 hour fuel tank with spill containment
  • Low fuel level shutdown
  • Low and high fuel level alarms
  • Manual fuel transfer pump
  • Dual wall fuel tank base
  • Fuel transfer system controls

Lube System

  • Manual sump pump

Mounting System

  • Narrow skid base - replaces standard fuel tank base

Special Test / Reports

  • PGS Test report @ 1.0 power factor
  • PGS Test report @ 0.8 power factor

Starting / Charging System

  • 5 Amp single Battery charger
  • Jacket water heater
  • Battery disconnect switch

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Maintenance and Repairs

Retain genset value with maintenance, upgrade kits, and repair options that extend lifecycles, optimise performance, and help you control costs.

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