20REOZDC Industrial – Kohler® Diesel 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 generator set is CSA certified, file #LR 955.
  • UL 2200 listing is available.
  • The generator set engine is certified by the Environmental Protection Agency (EPA) to conform to Tier 4 nonroad emissions regulations.
  • The generator set meets NFPA 110, Level 1, when equipped with the necessary accessories and installed per NFPA standards.
  • A one-year limited warranty covers all systems and components.
  • Two- and five- year extended warranties are also available.
  • Four-point mounting with vibration isolators.
  • The brushless, rotating-field alternator has broadrange reconnectability.
  • Voltage regulation of ±0.25%.
  • Sustained short-circuit capability.
  • Customer connection box with field-connection terminal blocks.
  • Single-side access.

Alternator Features:

  • 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.
  • Vacuum-impregnated windings with fungus-resistant epoxy varnish for dependability and long life.
  • Superior voltage waveform from a two-thirds pitch stator and skewed rotor.
  • Rotors dynamically balanced to minimize vibration.
  • Copper windings to ensure minimal heat buildup. Insulation meeting NEMA standards for class H insulation.
  • Generator direct connected to the engine.
  • Sealed precision ball bearings with a precision-machined steel sleeve in the end bracket to prevent shaft misalignment and extend bearing life.

Prime Ratings:
18 kW (22.5 kVa)
Standby Ratings:
20 kW (25 kVa)
60 Hz
Alternator Type:
EPA Tier Level:
Engine Manufacturer:
Engine Model:
Cylinder Arrangement:
4, inline
Max Power at Rated RPM:
27.1 kWm (36.3 BHP)
Prime Fuel Consumption at
100% load:
6.6 Lph (1.7 gph)
75% load:
5.2 Lph (1.4 gph)
50% load:
3.8 Lph (1 gph)
25% load:
2.7 Lph (0.7 gph)
Standby Fuel Consumption at
100% load:
7.3 Lph (1.9 gph)
75% load:
5.6 Lph (1.5 gph)
50% load:
4.1 Lph (1.1 gph)
25% load:
2.8 Lph (0.7 gph)
Additional Generators