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Cummins/Onan C1250 D5A Generator Set

The Cummins/Onan C1250 D5A is a 1000 kW (1250 kVA) Diesel standby generator set powered by a Cummins/Onan KTA38-G9 engine. It is available at 110/190 V, 220/380 V, 115/200 V, 230/400 V, 120/208 V, 240/416 V, 127/220 V and 255/440 V, 3-phase and 50 Hz. It holds about 114 L (30.1 gal) of oil and 336 L (88.8 gal) of coolant. The set measures 1785×2241×8179 mm (70.3×88.2×322.0 in) and weighs about 8569 kg (18891 lb).

1000 kW
Standby
38.0 L
Displacement
114.0 L
Oil capacity
1
Document types

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Specifications

FuelDiesel
Frequency50.0 Hz
Standby power1000 kW
Standby kVA1250
Prime power900 kW
ControllerPC 3.3
Oil capacity114.0 L
AlternatorStamford/AvK PI734A
Voltage options110/190 V, 220/380 V, 115/200 V, 230/400 V, 120/208 V, 240/416 V, 127/220 V, 255/440 V
Phase3
Power factor0.8
Battery voltage24 V
Battery quantity1
Coolant capacity336 L
Max ambient0 °C
Dimensions (L×W×H)1785×2241×8179 mm
Dry weight8569 kg

Engine

Cummins/Onan KTA38-G9
Oil capacity114.0 L
Displacement38.0 L
Aspirationturbo Charged and after-cooled
Rated speed1500 rpm

Filters for the Cummins/Onan KTA38-G9

3

Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.

SystemFilterDescriptionCross-references
Oil filterP550777Lube Filter, Spin-On BypassCUMMINS 3021658, CUMMINS 33004232, NAPA 1749, BALDWIN B7577 FridayParts $43.56
Oil filterP551670Lube Filter, Spin-On Full FlowCUMMINS 298670, CUMMINS 299670, NAPA 1970, CARBOCOL 0026 FridayParts $26.68
Fuel / water separatorP552006Fuel Filter, Water Separator Spin-On Twist&DrainCUMMINS 3089916, CUMMINS 4095189, NAPA 3645, BALDWIN BF1262 FridayParts $42.88

Common questions

What is the power rating of the Cummins/Onan C1250 D5A?

The Cummins/Onan C1250 D5A is rated 1000 kW standby (1250.0 kVA).

What engine is in the Cummins/Onan C1250 D5A?

The Cummins/Onan C1250 D5A is powered by the Cummins/Onan KTA38-G9 engine.

What kind of fuel does the Cummins/Onan C1250 D5A run on?

The Cummins/Onan C1250 D5A runs on Diesel.

How much oil does the Cummins/Onan C1250 D5A take?

The Cummins/Onan KTA38-G9 engine in the Cummins/Onan C1250 D5A has an oil capacity of 114.0 liters.

What is the coolant capacity of the Cummins/Onan C1250 D5A?

The Cummins/Onan C1250 D5A cooling system holds 336 liters (88.8 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Cummins/Onan C1250 D5A?

The Cummins/Onan C1250 D5A is rated 900 kW prime (1125 kVA), against 1000 kW standby.

What is the dry weight of the Cummins/Onan C1250 D5A?

The Cummins/Onan C1250 D5A has a dry weight of 8569 kg (18891 lb).

What voltage does the Cummins/Onan C1250 D5A produce?

The Cummins/Onan C1250 D5A is offered in 110/190 V, 220/380 V, 115/200 V, 230/400 V, 120/208 V, 240/416 V, 3-phase.

What battery does the Cummins/Onan C1250 D5A use?

The Cummins/Onan C1250 D5A uses 1 battery, 24 V each, per the manufacturer specification sheet.

What alternator does the Cummins/Onan C1250 D5A use?

The Cummins/Onan C1250 D5A uses a Stamford/AvK PI734A alternator.

Fuel consumption

RatingLoadL/hgal/h
Prime25%299.0579.0
Standby25%20.95.52

Available documents

Spec sheet — EA S CC 23 EN (Cummins/Onan)Spec sheet — EA S CC 39 EN

This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.

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