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Home›Generac›Generac G300LG4

Generac G300LG4 Generator Set

The Generac G300LG4 is a 300 kW (375 kVA) Natural Gas standby generator set powered by a Generac G300LG4 engine. It is available at 120/208 V, 120/240 V, 277/480 V and 346/600 V, 3-phase, 60 Hz and rated 1041 A. It holds about 34.3 L (9.1 gal) of oil and 71.9 L (19.0 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 2 group-2 batteries at 12 V. The set measures 3524.1×1463.1×1728.3 mm (138.7×57.6×68.0 in), weighs about 2998 kg (6609 lb) and produces 90 dBA at 7 m.

300 kW
Standby
12.88 L
Displacement
34.3 L
Oil capacity
1
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Specifications

FuelNatural Gas
Frequency60.0 Hz
Standby power300 kW
Standby kVA375
Prime power270 kW
ControllerDigital H Control Panel - Dual 4x20 Display
Oil capacity34.3 L
Alternator520
Voltage options120/208 V, 120/240 V, 277/480 V, 346/600 V
PhaseThree-Phase
Rated current1041 A
Power factor0.8
Battery group2
Battery voltage12 V
Battery quantity2
Coolant capacity71.9 L
Max ambient50 °C
Dimensions (L×W×H)3524×1463×1728 mm
Dry weight2998 kg
Sound level90.0 dBA @ 7 m

Engine

Generac G300LG4
Oil capacity34.3 L
Coolant capacity71.9 L
Displacement12.88 L
AspirationTurbocharged/Aftercooled
Rated speed2150 rpm

Common questions

What is the power rating of the Generac G300LG4?

The Generac G300LG4 is rated 300 kW standby (375.0 kVA).

What engine does the Generac G300LG4 use?

The Generac G300LG4 is powered by the Generac G300LG4 engine.

What kind of fuel does the Generac G300LG4 run on?

The Generac G300LG4 runs on Natural Gas.

How much oil does the Generac G300LG4 take?

The Generac G300LG4 engine in the Generac G300LG4 has an oil capacity of 34.3 liters.

What is the cooling system capacity of the Generac G300LG4?

The Generac G300LG4 cooling system holds 71.9 liters (19.0 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the continuous rating of the Generac G300LG4?

The Generac G300LG4 is rated 270 kW prime (338 kVA), against 300 kW standby.

How loud is the Generac G300LG4?

The Generac G300LG4 is rated at 90.0 dBA at 7 m, per the manufacturer specification sheet.

What is the dry weight of the Generac G300LG4?

The Generac G300LG4 has a dry weight of 2998 kg (6609 lb).

What voltage does the Generac G300LG4 produce?

The Generac G300LG4 is offered in 120/208 V, 120/240 V, 277/480 V, 346/600 V, Three-Phase-phase.

What size battery does the Generac G300LG4 need?

The Generac G300LG4 uses 2 batteryies, 12 V each, group 2, per the manufacturer specification sheet.

Which alternator is fitted to the Generac G300LG4?

The Generac G300LG4 uses a 520 alternator.

Fuel consumption

RatingLoadL/hgal/h
Standby25%208.255.0
Standby50%306.6281.0
Standby75%386.11102.0
Standby100%492.1130.0

Available documents

Spec sheet — Olympian G300LG4 12.9L (Generac)

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.