Specifications
| Fuel | natural gas / LP |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 260 kW |
| Standby kVA | 325 |
| Prime power | 235 kW |
| Emissions | EPA-Certified |
| Controller | APM603, Decision-Maker 3000, Decision-Maker 550 |
| Oil capacity | 47.1 L |
| Alternator | Fast-Response PMG (Class Class H insulation) |
| Voltage options | 480 V |
| Phase | 3-phase |
| Power factor | 0.8 |
| Battery cranking | 925 CCA |
| Battery voltage | 12 V |
| Battery quantity | 2 |
| Coolant capacity | 227.3 L |
| Engine jacket water | 43.2 L |
| Max ambient | 50 °C |
| Dimensions (L×W×H) | 3500×1750×2148 mm |
| Sound level | 70.0 dBA @ 23 m |
Engine
| Oil capacity | 47.1 L |
|---|---|
| Coolant capacity | 43.2 L |
| Displacement | 14.6 L |
| Aspiration | Turbocharged, Aftercooled |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Doosan D146L| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | ×2 | — |
Service specifications
30| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Other | 10 in. weld flange bolt circle diameter B | 361.95 | mm (14.25 in.) | |
| Other | 10 in. weld flange outside diameter C | 406.4 | mm (16.0 in.) | |
| Other | 10 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 12 in. weld flange bolt circle diameter B | 431.80 | mm (17.00 in.) | |
| Other | 12 in. weld flange outside diameter C | 482.6 | mm (19.0 in.) | |
| Other | 12 in. weld flange quantity of bolts / bolt hole diameter D | 12, 25.40 | mm (1.00 in.) | |
| Other | 14 in. weld flange bolt circle diameter B | 476.25 | mm (18.75 in.) | |
| Other | 14 in. weld flange outside diameter C | 533.4 | mm (21.0 in.) | |
| Other | 14 in. weld flange quantity of bolts / bolt hole diameter D | 12, 28.58 | mm (1.13 in.) | |
| Other | 16 in. weld flange bolt circle diameter B | 539.75 | mm (21.25 in.) | |
| Other | 16 in. weld flange outside diameter C | 596.9 | mm (23.5 in.) | |
| Other | 16 in. weld flange quantity of bolts / bolt hole diameter D | 16, 28.58 | mm (1.13 in.) | |
| Other | 18 in. weld flange bolt circle diameter B | 577.85 | mm (22.75 in.) | |
| Other | 18 in. weld flange outside diameter C | 635.0 | mm (25.0 in.) | |
| Other | 18 in. weld flange quantity of bolts / bolt hole diameter D | 16, 31.75 | mm (1.25 in.) | |
| Other | 20 in. weld flange bolt circle diameter B | 635.00 | mm (25.00 in.) | |
| Other | 20 in. weld flange outside diameter C | 698.5 | mm (27.5 in.) | |
| Other | 20 in. weld flange quantity of bolts / bolt hole diameter D | 20, 31.75 | mm (1.25 in.) | |
| Other | 5 in. weld flange bolt circle diameter B | 215.90 | mm (8.50 in.) | |
| Other | 5 in. weld flange outside diameter C | 241.30 | mm (9.50 in.) | |
| Other | 5 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 6 in. weld flange bolt circle diameter B | 254.0 | mm (10.0 in.) | |
| Other | 6 in. weld flange outside diameter C | 279.4 | mm (11.0 in.) | |
| Other | 6 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | 8 in. weld flange bolt circle diameter B | 298.45 | mm (11.75 in.) | |
| Other | 8 in. weld flange outside diameter C | 342.9 | mm (13.5 in.) | |
| Other | 8 in. weld flange quantity of bolts / bolt hole diameter D | 8, 22.23 | mm (0.88 in.) | |
| Other | Weld flange angle A (10, 12, 14 in. nominal pipe size) | 30 | deg. | |
| Other | Weld flange angle A (16, 18, 20 in. nominal pipe size) | 22.5 | deg. | |
| Other | Weld flange angle A (5, 6, 8 in. nominal pipe size) | 45 | deg. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| 12-lead optional voltage connections | 12 | Alternator optional feature | ||
| 4-lead dedicated voltages | 4 | Alternator standard feature | ||
| 110/127/139/240/254/277 | single-phase | switchable | Towable generator model specifications; some models n/a | |
| 208/220/240/415/440/480 | 3-phase | reconnectable | Towable generator model specifications | |
| 208/220/240/415/440/480 | 3-phase | switchable | Towable generator model specifications |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
How many kW is the Kohler 250REZX?
The Kohler 250REZX is rated 260 kW standby (325.0 kVA).
Which engine powers the Kohler 250REZX?
The Kohler 250REZX is powered by the Doosan D146L engine.
What fuel does the Kohler 250REZX use?
The Kohler 250REZX runs on natural gas / LP.
What's the oil capacity on a Kohler 250REZX?
The Doosan D146L engine in the Kohler 250REZX has an oil capacity of 47.1 liters.
How much coolant does the Kohler 250REZX hold?
The Kohler 250REZX cooling system holds 227.3 liters (60.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the prime power rating of the Kohler 250REZX?
The Kohler 250REZX is rated 235 kW prime (294 kVA), against 260 kW standby.
What is the sound level of the Kohler 250REZX?
The Kohler 250REZX is rated at 70.0 dBA at 23 m, per the manufacturer specification sheet.
What voltage does the Kohler 250REZX produce?
The Kohler 250REZX is offered in 480 V, 3-phase-phase.
How many cold cranking amps does the Kohler 250REZX require?
The Kohler 250REZX uses 2 batteryies, 12 V each, 925 CCA, per the manufacturer specification sheet.
What alternator does the Kohler 250REZX use?
The Kohler 250REZX uses a Fast-Response PMG alternator. Insulation class Class H.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 25% | 24.8 | 6.55 |
| Prime | 50% | 39.7 | 10.49 |
| Prime | 75% | 55.9 | 14.77 |
| Prime | 100% | 71.8 | 18.97 |
| Standby | 25% | 26.3 | 6.95 |
| Standby | 50% | 43.1 | 11.39 |
| Standby | 75% | 61.4 | 16.22 |
| Standby | 100% | 78.8 | 20.82 |
Available documents
This page was generated from the 10 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.