4bta3.9 generator

4BTA3.9 for Commercial Industrial

Frequency (Hz) 50, 60
Certification N/A
Fuel Type Diesel
Rated for kW kVA
Standby 44-92 55-115
Prime 40-83 50-104


Commercial Industrial


  • Cummins® heavy-duty engine - Rugged 4-cycle, industrial diesel delivers reliable power, low emissions and fast response to load changes.
  • Alternator - Several alternator sizes offer selectable motor starting capability with low reactance 2/3 pitch windings, low waveform distortion with non-linear loads and fault clearing short-circuit capability.
  • Control system - The PowerCommand® electronic control is standard equipment and provides total genset system integration including automatic remote starting/stopping, precise frequency and voltage regulation, alarm and status message display, AmpSentry™ protection, output metering, auto-shutdown at fault detection and NFPA 110 Level 1 compliance.
  • Cooling system - Standard integral set-mounted radiator system, designed and tested for rated ambient temperatures, simplifies facility design requirements for rejected heat.
  • Enclosures - Optional weather protective and sound attenuated enclosures are available.
  • Fuel tanks - Dual wall sub-base fuel tanks and in-skid day tanks are also offered.
  • NFPA - The genset accepts full rated load in a single step in accordance with NFPA 110 for Level 1 systems.
  • Warranty
Generator Model Hz Prime kVA / kW Standby kVA / kW Fuel Type Spec Sheet
C55 D5 50 50 / 40 55 / 44 Diesel SS3-CPGK
C80 D5 50 73 / 58 80 / 64 Diesel EA_S_CC_02_EN
C80D6 60 90 / 72 100 / 80 Diesel C80D6_EN
C90D6 60 104 / 83 115 / 92 Diesel C90D6_EN

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