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Generac SG015 Generator Set

The Generac SG015 is a 15 kW (15 kVA) Natural Gas or L.P. Vapor standby generator set powered by a Mitsubishi 4G15 engine. It is available at 120/240 V, 100/200 V, 231/400 V and 480 V, 3-phase, 60 Hz and rated 34.7 A. It holds about 3.8 L (1.0 gal) of oil and 6.6 L (1.7 gal) of coolant. Starting uses 1 group-1 battery at 12 V. The set measures 1360×1697×918 mm (53.5×66.8×36.1 in).

15 kW
Standby
1.468 L
Displacement
3.8 L
Oil capacity
2
Document types

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Specifications

FuelNatural Gas or L.P. Vapor
Frequency60.0 Hz
Standby power15 kW
Standby kVA15
Prime power11 kW
ControllerH-100
Oil capacity3.8 L
AlternatorMMC 4G15 (2-pole, Class Class F insulation)
Voltage options120/240 V, 100/200 V, 231/400 V, 480 V
Phase3-phase
Rated current34.7 A
Power factor0.8
Circuit breaker34.7 A
Battery group1
Battery voltage12 V
Battery quantity1
Coolant capacity6.6 L
Dimensions (L×W×H)1360×1697×918 mm

Engine

Mitsubishi 4G15
Oil capacity3.79 L
Coolant capacity7.57 L
Displacement1.468 L
Aspirationnaturally aspirated

Maintenance & consumables

for the Mitsubishi 4G15
ItemSpecCapacityPart #Interval
Air filterAir cleaner service—500 hr
Oil filterEngine oil filter—150 hr
Coolant50/50 low silicate ethylene glycol base antifreeze and soft water—
OilHigh quality detergent oil SC/SD/SE/SF rated—150 hr

Common questions

What size generator is the Generac SG015?

The Generac SG015 is rated 15 kW standby (15.0 kVA).

What engine does the Generac SG015 use?

The Generac SG015 is powered by the Mitsubishi 4G15 engine.

What fuel type does the Generac SG015 take?

The Generac SG015 runs on Natural Gas or L.P. Vapor.

How much oil does the Generac SG015 take?

The Mitsubishi 4G15 engine in the Generac SG015 has an oil capacity of 3.79 liters.

What is the cooling system capacity of the Generac SG015?

The Generac SG015 cooling system holds 6.6 liters (1.7 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Generac SG015?

The Generac SG015 is rated 11 kW prime (12 kVA), against 15 kW standby.

What voltages is the Generac SG015 available in?

The Generac SG015 is offered in 120/240 V, 100/200 V, 231/400 V, 480 V, 3-phase-phase.

What size battery does the Generac SG015 need?

The Generac SG015 uses 1 battery, 12 V each, group 1, per the manufacturer specification sheet.

What alternator comes on the Generac SG015?

The Generac SG015 uses a MMC 4G15 alternator. It has 2 poles. Insulation class Class F.

Fuel consumption

RatingLoadL/hgal/h
Prime100%147.061.0
Standby100%185.077.0

Available documents

Spec sheet — 0160800sby (Generac)Spec sheet — sg010-15 (Generac)Reference — 0172500SBY (Generac)

This page was generated from the 3 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.