Specifications
| Fuel | Natural Gas |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 500 kW |
| Standby kVA | 625 |
| Prime power | 450 kW |
| Controller | Detector |
| Oil capacity | 102.0 L |
| Alternator | GFGA |
| Voltage options | 110/190 V, 139/240 V, 220/380 V, 277/480 V, 120/240 V |
| Phase | 3-phase |
| Rated current | 120 A |
| Power factor | 1.0 |
| Circuit breaker | 120 A |
| Battery group | 24-volt |
| Battery cranking | 660 CCA |
| Battery voltage | 24 V |
| Battery quantity | 1 |
| Coolant capacity | 45 L |
| Max ambient | 100 °C |
| Dry weight | 5669 kg |
Engine
| Oil capacity | 102.0 L |
|---|---|
| Coolant capacity | 45.0 L |
| Displacement | 28.0 L |
| Aspiration | Turbo Charged, After Cooled |
| Rated speed | 1800 rpm |
Filters for the Cummins/Onan GTA28 GS
1Engine-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.
Listed for this engine in only one kind of machine, so they may depend on how the engine was installed:
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P551670 | Lube Filter, Spin-On Full Flow | CUMMINS 298670, CUMMINS 299670, NAPA 1970, CARBOCOL 0026 | FridayParts $26.68 |
Common questions
What size generator is the Cummins/Onan GTA28 GS?
The Cummins/Onan GTA28 GS is rated 500 kW standby (625.0 kVA).
What engine is in the Cummins/Onan GTA28 GS?
The Cummins/Onan GTA28 GS is powered by the Cummins/Onan GTA28 GS engine.
What kind of fuel does the Cummins/Onan GTA28 GS run on?
The Cummins/Onan GTA28 GS runs on Natural Gas.
How much oil does the Cummins/Onan GTA28 GS take?
The Cummins/Onan GTA28 GS engine in the Cummins/Onan GTA28 GS has an oil capacity of 102.0 liters.
What is the coolant capacity of the Cummins/Onan GTA28 GS?
The Cummins/Onan GTA28 GS cooling system holds 45 liters (11.9 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Cummins/Onan GTA28 GS?
The Cummins/Onan GTA28 GS is rated 450 kW prime (562 kVA), against 500 kW standby.
How much does the Cummins/Onan GTA28 GS weigh?
The Cummins/Onan GTA28 GS has a dry weight of 5669 kg (12497 lb).
What voltages is the Cummins/Onan GTA28 GS available in?
The Cummins/Onan GTA28 GS is offered in 110/190 V, 139/240 V, 220/380 V, 277/480 V, 120/240 V, 3-phase-phase.
What battery does the Cummins/Onan GTA28 GS use?
The Cummins/Onan GTA28 GS uses 1 battery, 24 V each, 660 CCA, group 24-volt, per the manufacturer specification sheet.
What alternator does the Cummins/Onan GTA28 GS use?
The Cummins/Onan GTA28 GS uses a GFGA alternator.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Standby | 50% | 609.0 | 73.0 |
| Standby | 75% | 810.0 | 170.0 |
| Standby | 100% | 1075.0 | 230.0 |
Available documents
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.