Kohler 300REZX Generator Set
The Kohler 300REZX is a 300 kW (375 kVA) Natural Gas standby generator set powered by a Doosan D146L engine. It is available at 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V and 347/600 V, 3-phase and 60 Hz. It holds about 47.1 L (12.4 gal) of oil and 227.3 L (60.0 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 batteries rated 925 CCA at 12 V. The set measures 3500×1750×2148 mm (137.8×68.9×84.6 in) and weighs about 3200 kg (7055 lb).
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Specifications
| Fuel | Natural Gas |
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| Frequency | 60.0 Hz |
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| Standby power | 300 kW |
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| Standby kVA | 375 |
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| Prime power | 270 kW |
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| Emissions | EPA-Certified |
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Full specifications
| Voltage options | 120/208 V, 127/220 V, 120/240 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V |
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| Phase | 3 |
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| Power factor | 0.8 |
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| Battery cranking | 925 CCA |
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| Battery voltage | 12 V |
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| Coolant capacity | 227.3 L |
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| Max ambient | 50 °C |
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| Dimensions (L×W×H) | 3500×1750×2148 mm |
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| Dry weight | 3200 kg |
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Engine
Doosan D146L
| Oil capacity | 47.1 L |
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| Coolant capacity | 227.3 L |
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| Displacement | 14.6 L |
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| Aspiration | Turbocharged, Aftercooled |
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| Rated speed | 1800 rpm |
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Other generator sets with this engine
Maintenance & consumables
For the Doosan D146L engine.
| Item | Spec | Capacity | Part # | Interval |
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| Service part / kit | Exhaust Silencer, Critical | | PA-324470 buy | |
| Oil | | 42.1 L | | |
| Oil filter | | 2.0 quantity | find | |
Available documents
BrochureSpec sheetReferenceParts manualWiring diagram