Comfort, security and convenience are things you can depend on with a Cummins Onan residential standby or portable generator … just in case the power goes out. It is easy to forget how much we depend on power. We use it for everyday essentials like heating, cooling, security, refrigeration, lights, cooking and bathing. With power outages occurring more and more frequently, it is good to be prepared.  A Cummins Onan standby generator can give you peace of mind and the ability to live your busy life, uninterrupted.

Generally, a Cummins Onan residential home standby generator set offers many features not found on portable generator sets, such as a more sophisticated control system, a fully weather–protective enclosure, significantly quieter operation, and more capacity so you can power more conveniences. It goes on automatically when you need it and shuts down automatically once main power is restored. It is connected directly to a fuel system and your home's electrical system so you won’t have to fill a gas tank or manually transfer power from the utility to the home standby unit.

• Very quiet Operation
• Aluminum weather resistant housing
• Fully automatic operation when used with a Cummins Onan automatic transfer pane
• Available for use with natural gas or LP vapor
• Attractive and discreet housing
• Electronic governor for precise frequency control

Clean, quiet, and neighborhood friendly, all models run on either natural gas or propane. Click here to learn how the system works.

• Very quiet operation – 64 dB(A) at 7 m at full load
• Internet remote monitoring and email notification
• Automatic load management – the intelligent generator control automatically manages non-essential household loads for maximum utilization of generator power
• Powered by Subaru EH 72 engine with Cummins Onan designed fuel system

RS Series 20A Natural Gas and Propane

• Very quiet operation
• Internet remote monitoring and email notification
• Automatic load management - The intelligent generator control automatically manages nonessential household loads for maximum utilization of generator power
• Cummins Onan designed alternator and electronic control
• Powerful motor starting - starts and runs a 5 ton A/C1 under full pre-load
• 120 volt GFCI "Ready"
• Self-diagnostic capability
• Service and maintenance information displayed on in home display
• Easy installation with innovative molded polymer installation base - no need for a concrete pad
• Electronic governor for precise frequency control
• Flexible 12 inch fuel line provided with genset
• Generator designed and manufactured in the USA
• U.S. EPA and CARB Emissions Certified
• UL 2200 Listed and CSA Certified generator and transfer switch for your protection
• Quality power output, less than 5% THD
• 5 year, 2000 hour limited warranty

RS Series 20AC Natural Gas and Propane (Cold Weather Configuration)

• Equipped with cold weather climate kit
• Very quiet operation
• Internet remote monitoring and email notification
• Automatic load management - The intelligent generator control automatically manages nonessential household loads for maximum utilization of generator power
• Cummins Onan designed alternator and electronic control
• Powerful motor starting - starts and runs a 5 ton A/C1 under full pre-load
• 120 volt GFCI "Ready"
• Self-diagnostic capability
• Service and maintenance information displayed on in home display
• Easy installation with innovative molded polymer installation base - no need for a concrete pad
• Electronic governor for precise frequency control
• Flexible 12 inch fuel line provided with genset
• Generator designed and manufactured in the USA
• U.S. EPA and CARB Emissions Certified
• CSA Certified generator and transfer switch for your protection
• Quality power output, less than 5% THD
• 5 year, 2000 hour limited warranty

Spec Sheet

RS Series 20000 Natural Gas and Propane

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

RS Series 30000 Natural Gas and Propane

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

• Very 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
• Aluminum enclosure available

RS Series 60000 & 75000 Natural Gas and Propane

• Extemely 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
• Aluminum enclosure available

RS Series 85000 & 100000 Natural Gas and Propane

• 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
• Aluminum enclosure