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Generac SD040 Generator Set

The Generac SD040 is a 40 kW (50 kVA) Diesel standby generator set powered by a Generac SD040 engine. It is available at 208/240 V, 208/208 V, 277/480 V and 346/600 V, 3-phase, 60 Hz and rated 167 A. It holds about 7 L (1.8 gal) of oil and 9.5 L (2.5 gal) of coolant, with a maximum ambient rating of 50 °C. Starting uses 1 group-161970 battery at 12 V. The set measures 1948×950×1147 mm (76.7×37.4×45.2 in), weighs about 790 kg (1742 lb) and produces 75 dBA at 1 m. An integrated tank holds 211 L (55.7 gal), roughly 60 hours of runtime.

40 kW
Standby
3.4 L
Displacement
7.0 L
Oil capacity
1
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Specifications

FuelDiesel
Frequency60.0 Hz
Standby power40 kW
Standby kVA50
Prime power36 kW
EmissionsEPA Certified Stationary Emergency
ControllerDigital H Control Panel- Dual 4x20 Display
Oil capacity7.0 L
Alternator390 mm (4-pole, Class H insulation)
Voltage options208/240 V, 208/208 V, 277/480 V, 346/600 V
PhaseThree-Phase
Rated current167 A
Power factor0.8
Circuit breaker167 A
Battery groupSee Battery Index 0161970SBY
Battery voltage12 V
Battery quantity1
Coolant capacity9.5 L
Max ambient50 °C
Dimensions (L×W×H)1948×950×1147 mm
Dry weight790 kg
Sound level75.0 dBA @ 1 m
Fuel tank211.0 L
Tank runtime60 hr

Engine

Generac SD040
Oil capacity7.0 L
Coolant capacity9.5 L
Displacement3.4 L
AspirationTurbocharged/Aftercooled
Rated speed1800 rpm

Common questions

How many kW is the Generac SD040?

The Generac SD040 is rated 40 kW standby (50.0 kVA).

What engine does the Generac SD040 use?

The Generac SD040 is powered by the Generac SD040 engine.

What kind of fuel does the Generac SD040 run on?

The Generac SD040 runs on Diesel.

How much oil does the Generac SD040 take?

The Generac SD040 engine in the Generac SD040 has an oil capacity of 7.0 liters.

What is the coolant capacity of the Generac SD040?

The Generac SD040 cooling system holds 9.5 liters (2.5 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.

What is the prime power rating of the Generac SD040?

The Generac SD040 is rated 36 kW prime (45 kVA), against 40 kW standby.

What is the sound level of the Generac SD040?

The Generac SD040 is rated at 75.0 dBA at 1 m, per the manufacturer specification sheet.

What is the dry weight of the Generac SD040?

The Generac SD040 has a dry weight of 790 kg (1741 lb).

How big is the fuel tank on the Generac SD040?

The Generac SD040 has a 211 liter (56 US gallon) fuel tank, giving about 60 hours of runtime.

What voltages is the Generac SD040 available in?

The Generac SD040 is offered in 208/240 V, 208/208 V, 277/480 V, 346/600 V, Three-Phase-phase.

What size battery does the Generac SD040 need?

The Generac SD040 uses 1 battery, 12 V each, group See Battery Index 0161970SBY, per the manufacturer specification sheet.

What alternator does the Generac SD040 use?

The Generac SD040 uses a 390 mm alternator. It has 4 poles. Insulation class H.

Fuel consumption

RatingLoadL/hgal/h
Standby25%4.21.1
Standby50%7.31.9
Standby75%10.22.7
Standby100%13.33.5

Available documents

Spec sheet — sd040-40kw-diesel-generator-specsheet (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.