HomeCummins/OnanCummins/Onan 350 IDIFIN

Cummins/Onan 350 IDIFIN Generator Set

The Cummins/Onan 350 IDIFIN is a 350 kW Diesel standby generator set powered by a Cummins/Onan KTA-1150-G engine. It is available at 480 V and 208 V, 3-phase and 60 Hz. Starting uses 2 group-BCI batteries rated 975 CCA at 12 V.

350 kW
Standby
1
Document types

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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power350 kW
Voltage options480 V, 208 V
Phase3
Power factor0.8
Battery groupBCI
Battery cranking975 CCA
Battery voltage12 V
Battery quantity2

Engine

Cummins/Onan KTA-1150-G
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan KTA-1150-G
ItemSpecCapacityPart #Interval
Air filter1200 hr find
Fuel filterFS-1304500 hr find
Oil filterFS-13861200 hr find
Belt1200 hr find
Coolant500 hr
Oil8 hr

Common questions

What is the power rating of the Cummins/Onan 350 IDIFIN?

The Cummins/Onan 350 IDIFIN is rated 350 kW standby.

What engine does the Cummins/Onan 350 IDIFIN use?

The Cummins/Onan 350 IDIFIN is powered by the Cummins/Onan KTA-1150-G engine.

What fuel does the Cummins/Onan 350 IDIFIN use?

The Cummins/Onan 350 IDIFIN runs on Diesel.

Troubleshooting

12

Symptoms & remedies

SymptomCauseRemedy
Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds.Check for empty fuel tank, fuel system leaks, or plugged fuel filters and/or supply lines. Correct as required.
Fault lamp lights immediately after engine starts and unit shuts down.Indicates possible overspeed condition. Check the governor and throttle linkage for binding and freedom of movement. Check electronic governor connections. Contact an Onan Distributor or the engine manufacturer if linkage is not at fault.
Fault lamp lights and engine shuts down after running for a period.. Check oil level and replenish if necessary. Check coolant level of radiator and heat exchanger sets and replenish if necessary. Check for slipping drive belts or for obstructions to the airflow. Check water flow valve on city water cooled seis and adjust if necessary. Contact an Onan Distributor or the engine manufacturer if none of the above.
Engine runs, shuts down and cranks for 75-seconds. Cranking cycle stops; fault lamp lights.. Check for dirty fuel filters and replace if necessary. (See MAINTENANCE section). Check for dirty or plugged air filters and replace if necessary. (See MAINTENANCE section)
Fault lamp lights, no fault exists.Engine monitor board or sensor malfunction. Contact an Onan Distributor.
Overcrank fault lamp lights and engine stops cranking after approximately 75-seconds.Check for empty fuel tank, fuel system leaks, or plugged fuel filters and/or supply lines. Correct as required.
Engine runs, shuts down, cranks for 75-seconds, cranking cycle stops, overcrank light ON.Check for dirty fuel filters and replace if necessary. (See MAINTENANCE section). Check for dirty or plugged air filters and replace if necessary. (See MAINTENANCE section)
Low oil pressure shutdown.Check oil level and replenish if necessary. Contact an Onan Distributor if oil level is correct.
High engine temperature shutdown.Check coolant level of radiator and heat exchanger sets and replenish if necessary. Check for slipping drive belts or for obstructions to the airflow. Check water flow valve on city water cooled sets and adjust if necessary. Contact an Onan Distributor or the engine manufacturer if none of the above.
Overspeed shutdown.Check the governor and throttle linkage for binding and freedom of movement. Check wire connections on electronic governor. Contact an Onan Distributor or the engine manufacturer if linkage is not at fault.
Overspeed light on, no shutdown.Engine monitor board or sensor malfunction. Contact an Onan Distributor.
The generator set has stopped under load.Move the Run-Stop-Remote Switch or the remote starting switch to the Stop position.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

4
Part #DescriptionQtySystem
960-0121BCI Group SIZ@2Battery PartsGeek
B184Run-Stop-Remote SwitchRun-stop-remote switch PartsGeek
C-1067CRANKCASE BREATHERBreather PartsGeek
CS8-1131spin-on type corrosion filter4Coolant filter PartsGeek

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Fuel consumption

RatingLoadL/hgal/h
Prime
Standby

Available documents

Service manual — 960-0121 Onan DFN Operator's Manual (5-1982) (Cummins/Onan)