qst30-g5 generator

QST30-G5 for Rental

Frequency (Hz) 60
Certification EPA Tier 2
Rated for kW kVa
Standby 1000 1250
Prime 900 1125



This Cummins® rental package is a fully integrated mobile power generation system, providing optimum performance, reliability, and versatility for standby and prime power applications.

The package utilizes custom designed switchgear to meet robust customer requirements. This switchgear provides reconnectable voltage via a link board design, automatic start/stop control and easy connection to existing installations.

Engine model: QST30-G5

Engine data sheet: DS-5247

EPA Nonroad: TPEM (Tier 2)

Design: 4 cycle, V-block, turbocharged and low temperature after-cooled

Bore: 140 mm (5.51 in.)

Stroke: 165 mm (6.5 in.)

Displacement: 30.5 L (1860 in3)

Cylinder block 12 cylinder

Battery capacity: 8D (qty: 4) 1250 CCA @ 0 °F and 1500 CCA @ 32 °F

Battery charging alternator: 24 volt, 35 amp Delco Remy

Starting voltage: 24 volt, negative ground

Fuel system: Direct injection: number 2 diesel fuel

Fuel filter: Triple element, 10 micron filtration, spin on fuel filters with water separator. Additional Fleetguard Industrial Pro Pre-filters

Air cleaner type: 2-stage dry replaceable element with dust ejectors (qty: 2)

Lube oil filter type(s): Four spin-on combination full-flow and bypass filters

Oil capacity: 154 L (162.8 qt)

Standard cooling system: 122 °F (50 °C)

Generator Model Hz Prime kVA / kW Standby kVA / kW Certification Spec Sheet
C1000D6RG 60 1125 / 900 1250 / 1000 EPA Tier 2 S-1554

Cummins diesel engines

  • Rugged 4-cycle industrial diesel delivers reliable power and fast response to load changes.
  • Equipped with heavy duty air cleaners, bypass-type oil filters and dual-element fuel/water separator filtration system with 4- way valve.
  • Includes jacket water heaters for more reliable operation in emergency standby applications.

Control system

  • The most advanced, reliable, and capable generator set control system available with parallel and Masterless Load Demand (MLD) capabilities
  • Integrated generator set providing precise frequency and voltage regulation, alarm and status message display in one easy-to-operate customer interface.
  • Auto shutdown at fault detection.

Stamford alternators

  • Designed and built by Cummins Generator Technologies.
  • Voltage - 480/208 VAC standard (600 VAC optional).
  • Alternators designed for improved motor starting.
  • Permanent magnet excitation for improved performance in cyclic and non-linear load applications.

Rental package enclosure

  • Designed for serviceability access.
  • Optimized fuel capacity.
  • Fluid containment design for greater environmental protection.
  • Sound attenuated to minimize impact on local
  • environment.
  • Vertical cooling air and engine exhaust path to
  • minimize sound level adjacent to the container.
  • Equipped with 24 VDC lighting.
  • Unit has paralleling capabilities at 480 and 600 VAC only.
  • Utility grade breaker.
  • Shore power 100 amp service breaker panel – single phase 120/240 VAC: (2) 30 amp
  • breakers (1 for each coolant heater) – 240 VAC (26.75 amp = 6420 watts for the heater). (1) 15 amp breaker – 120 VAC (GFIs), (1) 15 amp breaker – 120 VAC (battery charger).


  • Cold weather package (includes):
  • Additional diesel fired block heater
  • Battery heating pad
  • Floor insulation
  • Actuated louver control
  • Transport Canada UN31A certified fuel tank

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