Residential Generators

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

Starting from $5,499 USD

Starting from $6,635 CAD

Standard
Features
Weight, Size
& Sound Levels
Models & Ratings
Warranty

Engine:

Integrated oil drain valve and extension tube included
Simple fuel conversion between natural gas and LP
20 A battery charger
Highly reliable solenoid shift starter
Transistorized magneto ignition
Automotive-style lubrication system
Oil cooler
Spin-on oil filter
Electronic governor
Large-capacity air cleaner
CARB Certified, U.S. EPA Certified

Control System:

Cummins Proprietary electronic control with self diagnostics and generator set protection and safety features included
Automatically identifies power outage and starts generator
Microprocessor control manages generator set operation, fault detection and service diagnostics
Illuminated run/off/auto switch
Convenient access to all connection points
Fully automatic operation

Exhaust muffler:

Large automotive grade corrosion resistant muffler design
Low noise

Weight, Size & Sound Levels

Weight:	540 lb (245 kg)
Size:	Length 53 in (1346 mm), width 43 in (1092 mm), height 34.7 in (880 mm)
Sound:	62 dB(A) at 23ft (7 m), at normal load²

Model Ratings

Series	Order Model	Part Number	Fuel	Voltage	Frequency	Rated amps³	Circuit Breaker	Cold weather equipped	Listing
RS20A	20GSBB-6713A	A029T463	Natural Gas	120/240	60 Hz	144/72	100 A, 2 pole	No	UL
RS20A	20GSBB-6713A	A029T463	LP vapor	120/240	60 Hz	162.5/81.25	100 A, 2 pole	No	UL
RS20A	20GSBB-6714A	A029U509	natural gas	120/240	60 Hz	144/72	100 A, 2 pole	Yes	UL
RS20A	20GSBB-6714A	A029U509	LP vapor	120/240	60 Hz	162.5/81.25	100 A, 2 pole	Yes	UL
RS14AF	14GSBB-6716A	A029U513	Natural gas	120/240	50 Hz	113/56.5	60 A, 2 pole	No	None
RS14AF	14GSBB-6716A	A029U513	LP vapor	115/230	50 Hz	113/56.5	60 A, 2 pole	No	None

Specification sheet Operator manual

Site derating factors:
¹ Air-conditioners vary by type, efficiency, operational conditions, etc. Consult with a qualified HVAC specialist or Cummins Onan distributor/dealer for proper sizing. ² Normal load is defined as typical household consumption of 3kW. ³ Derating guidelines: Maximum wattage or maximum current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Full rated power available at 60F (15.5C) and sea level. Derate 3.5% for each 1000 ft (304.8 m) above sea level and 3% for each 10F (5.5C) increase in ambient temperature above 60F (15.5C). Maximum wattage or maximum current are based upon minimum service voltage in accordance with UL 2200 (Stationary Engine Generator Assemblies) or CSA C22.2 No. 100-04 (Motors and Generators).

Site derating factors:

¹ Air-conditioners vary by type, efficiency, operational conditions, etc. Consult with a qualified HVAC specialist or Cummins Onan distributor/dealer for proper sizing.
² Normal load is defined as typical household consumption of 3kW.
³ Derating guidelines: Maximum wattage or maximum current are subject to and limited by such factors as fuel Btu content, ambient temperature, altitude, engine power and condition, etc. Full rated power available at 60F (15.5C) and sea level. Derate 3.5% for each 1000 ft (304.8 m) above sea level and 3% for each 10F (5.5C) increase in ambient temperature above 60F (15.5C). Maximum wattage or maximum current are based upon minimum service voltage in accordance with UL 2200 (Stationary Engine Generator Assemblies) or CSA C22.2 No. 100-04 (Motors and Generators).

Warranty

Cummins Onan RS20A, RS20AC, and 14AF generators come standard with a 5 year/2000 hour limited warranty. Extended warranty options available. See warranty statement for additional details.

Cummins Onan

Residential Generators

RS Series 20A Natural Gas and Propane

Weight, Size & Sound Levels

Model Ratings

Warranty

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Parts, Service & Support

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