Kohler 400RZX Specs (Power | Consumption)

The Kohler 400RZX generator is listed with standby output of 400 kW, Natural Gas, LP Gas, or Dual Fuel fuel, 60 Hz operation, 7 available voltage configurations, Three phase, and rated current of 1388 A.

Kohler Generator Specifications

Generator • Natural Gas, LP Gas, or Dual Fuel • 60 Hz • Three phase

Standby power: 400 kWVoltage options: 7 configurationsRated current: 1388 A

Key specifications

400 kW Standby power

Natural Gas, LP Gas, or Dual Fuel Fuel

7 configurations Voltage options

Three phase Phase

1388 A Rated current

60 Hz Frequency

Useful generator charts

Charts are shown only when this model has enough usable source data.

Power output

Low 360 kW High 400 kW

Standby

400 kW

Prime

360 kW

Model spec snapshot

Representative numeric specifications from this generator.

400 kWStandby

1,388 ACurrent

How the Kohler 400RZX compares

This compares the supplied numeric specification with Kohler generators in the same broad standby-power class where enough comparable data exists.

Standby power

400 kW

36% below avg

8th percentile

Rated current

1,388 A

6% below avg

42nd percentile

Oil capacity

12.44 gal

40% below avg

32nd percentile

Standby power400 kW

Low 400 kWAverage 620.7 kWHigh 931 kW

About 36% below the similar-output Kohler average. Around the 8th percentile for this field.

Rated current1,388 A

Low 778 AAverage 1,472 AHigh 2,363 A

About 6% below the similar-output Kohler average. Around the 42nd percentile for this field.

Oil capacity12.44 gal

Low 9.3 galAverage 20.9 galHigh 48.71 gal

About 40% below the similar-output Kohler average. Around the 32nd percentile for this field.

This model Peer average

Generator information

Manufacturer	Kohler
Model	400RZX
Generator type	Generator
Fuel	Natural Gas, LP Gas, or Dual Fuel
Frequency	60 Hz

Electrical output

Standby power	400 kW
Prime power	360 kW
Standby kVA	500.0
Voltage options	120/208 V, 127/220 V, 139/240 V, 220/380 V, 240/416 V, 277/480 V, 347/600 V
Phase	Three phase
Rated current	1388 A
Power factor	0.8

Engine, cooling and controls

Engine model	Doosan D219TIC
Engine displacement	1, 336 cu in (21.9 L)
Aspiration / cooling	Turbocharged, Charge Air-Cooled
Rated engine speed	1800 rpm
Engine oil capacity	12.4 gal (47.1 L)
Engine coolant capacity	63.9 gal (242 L)
Oil capacity	12.4 gal (47.1 L)
Coolant capacity	50.2 gal (190 L)
Maximum ambient	122 °F (50 °C)
Controller	APM402, APM603, Decision-Maker 6000
Alternator	5M4024

Physical specifications

Dimensions (L × W × H)	161.4 × 86.2 × 97 in (4100 × 2190 × 2464 mm)

Battery

Battery cranking	925 CCA
Battery voltage	12 V
Battery quantity	2

Fuel consumption

Standby	40.0 L/h @ 25%; 65.6 L/h @ 50%; 93.4 L/h @ 75%; 119.8 L/h @ 100%
Prime	37.7 L/h @ 25%; 60.5 L/h @ 50%; 85.1 L/h @ 75%; 109.2 L/h @ 100%

Maintenance and service parts

Engine oil	Capacity: 47.1 L
Oil filter	Capacity: ×2

Disclaimer: Specifications should be verified against the official owner’s or service manual and confirmed on the Kohler North America generator website.