400RZXB Industrial – Kohler® LP & Natural Gas Generator


  • KOHLER Co. provides one-source responsibility for the generating system and accessories.
  • The generator set and its components are prototype-tested, factory-built, and production-tested.
  • The 60 Hz generator set offers a UL 2200 listing.
  • The generator set accepts rated load in one step.
  • The 60 Hz generator set meets NFPA 110, Level 1, when equipped with the necessary accessories and installed per NFPA standards.
  • Environmental Protection Certified for Stationary and Mobile Emergency and Non-Emergency applications.
  • A one-year limited warranty covers all systems and components. Two-and five-year extended warranties are also available.

Alternator Features:

  • The pilot-excited, permanent-magnet (PM) alternator provides superior short-circuit capability.
  • The brushless, rotating-field alternator has broad range reconnectability.
  • NEMA MG1, IEEE, and ANSI standards compliance for temperature rise and motor starting.
  • Sustained short-circuit current of up to 300% of the rated current for up to 10 seconds.
  • Sustained short-circuit current enabling down stream circuit breakers to trip without collapsing the alternator field.
  • Self-ventilated and drip-proof construction.
  • Superior voltage waveform from a two-thirds pitch stator and skewed rotor.
  • Digital solid-state, volts-per-hertz voltage regulator with ±0.25% no-load to full-load regulation.
  • Brushless alternator with brushless pilot exciter for excellent load response.

25 kW Specifications
30 kW Specifications
40 kW Specifications
45 kW Specifications
50 kW Specifications
60 kW Specifications
80 kW Specifications
100 kW Specifications
125 kW Specifications
150 kW Specifications
180 kW Specifications
200 kW Specifications
250 kW Specifications
300 kW Specifications
350 kW Specifications
400 kW Specifications
Standby Ratings:
260 kW (331 kVa)
60 Hz
Alternator Type:
Brushless, Permanent-Magnet Pilot Exciter
Engine Manufacturer:
Engine Model:
Cylinder Arrangement:
Max Power at Rated RPM:
451 kWm (605 BHP)
Standby Fuel Consumption at
100% load:
39.9 m3/hr. (1409 cfh)
75% load:
34.0 m3/hr. (1201 cfh)
50% load:
22.9 m3/hr. (809 cfh)
25% load:
14.5 m3/hr. (512 cfh)
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Posted in Generators, Kohler® LP & Natural Gas