c1250 n6c generator

QSV91 for High Horsepower Commercial Industrial

Frequency (Hz) 50, 60
Certification N/A


High Horsepower Commercial Industrial


Cummins® lean burn gas generator sets are fully integrated power generation systems utilizing state of the art technology that results in optimum performance and efficient use of fuel for standby and continuous duty, CHP and peaking applications. 

Design: 4 cycle, V-block, turbocharged low temperature aftercooled

Bore: 180 mm (7.09 in)

Stroke: 200 mm (7.87 in)

Displacement: 91.6 liters (5590 in3)

Cylinder block: Cast iron, V18

Battery charging alternator: None

Starting voltage: 24 volt negative ground

Fuel system: Lean burn

Ignition system: Individual coil on plug

Air cleaner type: Dry replaceable element

Lube oil filter type(s): Full flow and bypass filters

Breather: Breather filter 

Generator Model Hz Ratings (kW / kVA) Spec Sheet
C1250 N6C 50 1540-2000 kW S-1463
C1540 N6C 60 S-1463
C1540N5C 50 S-1463
C1700 N6 50 S-1624
C1750 N6C 50 S-1463
C1750N5C 50 S-1463
C2000 N6C 50 S-1463
C2000N5C 50 S-1463

Cummins® heavy-duty engine – Rugged 4- cycle lean burn gas combustion engine utilizing  full authority electronic engine management and monitoring.

Exhaust emissions – Lean burn technology provides exhaust emissions levels as low as 250 mg/Nm3 (0.5 g/hp-hr) NOx.

Fuel Flexibility - Ability to run on natural gas as well as alternative gaseous fuels with lower BTU properties and varying Methane Numbers (MN).

Permanent magnet generator (PMG) – Offers enhanced motor starting and fault clearing short circuit capability.

Alternator – Several alternator sizes offer selectable voltage and temperature rise with low reactance 2/3 pitch windings; low waveform distortion with non-linear loads, fault clearing shortcircuit capability, class F or H insulation (see Alternator Data Sheet for details), bearing and stator RTDs and anti-condensation heater. Mechanically strengthened for use on utility paralleling with unreliable grid.

Control system – The PowerCommand 3.3 generator set control is standard equipment and provides total genset system integration including full paralleling capability in grid or load share mode, precise frequency and voltage regulation, alarm and status message display, AmpSentry™ protection, output metering, autoshutdown at fault detection and a user interface panel installed onto the genset. Optional grid code compliant controls systems and remote operator panels are also available on select models.

Cooling system – The generator set is equipped with the capability of interfacing with a remote radiator or heat exchanger.

Warranty and service – Backed by a comprehensive warranty and worldwide distributor network that can provide all levels of service from replacements parts to performance guarantee programs. 

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