RS Series 85

RS Series 85000 Natural Gas & Propane Residential Power Generator 

  • Extremely quiet operation
  • Fully automatic operation when used with a Cummins Onan automatic transfer panel
  • Available for use with natural gas or LP vapor
  • Attractive and discreet sound attenuated housing
  • Electronic governor for precise frequency control
  • Includes 120 V coolant heater
  • Listed to UL 2200

Standard Features


  • Electronic ignition
  • Electronic governor
  • Full-pressure lubrication
  • High-capacity oil sump, spin-on oil filter
  • Solenoid shift starter
  • 65 A, engine-driven battery charger
  • 120 V coolant heater
  • Oil drain extension

Control system:

  • PCC 2100 control system
  • Automatic remote starting
  • Controls generator set starting and shutdown
  • Control components designed to withstand the vibration levels typical in generator sets
  • Field circuit breaker
  • High temperature, low oil pressure, low coolant level, overcrank and over speed shutdowns
  • Running time meter
  • UL Listed circuit breaker
  • DC control fuse

Exhaust muffler:

  • Enclosed exhaust silencer
  • Low noise

Weight, Size & Sound Levels

Size: Length 142 in (3614 mm), width 60 in (1520 mm), height 70 in (1789 mm)
Sound: Measured at 7 m average at full load: 72 dB(A)

Model Ratings

Order Model Fuel Voltage Rated kW kVa Rated amps Circuit Breaker Enclosure
85GGHG-6122J NG 120/240 85 85 708/354 400 A, 2 pole Aluminum
85GGHG-6123J LP 120/240 85 85 708/354 400 A, 2 pole Aluminum

pdf image Specification sheet   pdf image Operator manual


Cummins Onan residential home standby generators come with a standard 2-year warranty. Additional 2- and 5-year warranty options are available. Some restrictions apply. See warranty document AB2023-02 for more information.

This product is EPA Emissions certified for emergency standby use only.


Pricing and Availability Subject to Change Without Notice.

RS Series 85000
Product Options
1Natural Gas$19,600.00
2Liquid Propane$19,600.00
380KW Diesel-Open Housing$16,500.00
480KW Diesel-Closed Housing$21,500.00
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