Cummins Onan RS20A Whole House Generator with 200-Amp Automatic Transfer Switch and Remote In-Home Display
The Cummins OnanRS20A residential standby generator ensures that life goes on even when the power goes out. The versatile RS20A is electronically switchable to run on Natural Gas or Liquid Propane Vapor for easy installation using which ever fuel source is available. The RS20A is manufactured in the United States using Cummins Onan designed alternator, electronic control and high-quality commercial-grade materials for safe, reliable performance. The patented sound attenuating enclosure is manufactured from 11 gauge aluminum and automotive grade polypropylene for corrosion free outdoor installation. This patented enclosure design ensures the RS20A is the quietest generator in its class. Third party testing revealed only 62 dB(a) under a normal load, measured at 7 meters. The RS20A is US EPA emissions certified and UL 2200 Listed. Cummins Onan residential products adhere to National Electrical Code (NEC) and National Fire Protection Association (NFPA) requirements. This generator is not approved for use outside of the USA. Not available for sale in California.
Want to learn about Standby generators and find the right one for you? Click here for our generator selector tool
Automatic load management - the intelligent generator control automatically manages nonessential household loads for maximum utilization of generator power
Powerful motor starting - starts and runs a 5 ton A/C under full pre-load
Fully automatic operation
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
Attractive and discreet housing designed for very quiet operation
Electronic governor for precise frequency control
Standard internet remote monitoring - allows owner to start and stop the generator, as well as monitor the status from anywhere in the world via a smart phone or other internet enabled device
U.S. EPA Certified
Generator designed and manufactured in the USA
5 year, 2000 hour limited warranty
Voltage: 120/240
Quality power output, less than 5% THD
Natural gas fuel consumption (cu. Ft/hr): 1/2 load : 135, Full load: 240
Liquid propane (cu. Ft/hr (gal/hr)): 1/2 load: 53 (1.5), Full load 110 (3)
Rated amps; natural gas: 144/72, LPV: 162.5/81.26
Requires 12V, maintenance free, group 26R battery with minimum 545 Cold Cranking Amps - Not included
Requires Cummins Onan cold start kit for operation in areas where the ambient air temperature drops below 20 degree Fahrenheit.
SPECIFICATIONS
| Amperage (amps) | 81.25 A | Amps | 81.25 A |
| Assembled Depth (in.) | 40.8 in | Assembled Height (in.) | 35 in |
| Assembled Width (in.) | 52.7 in | CSA Listed | No |
| Color Family | Beige / Cream | Commercial / Residential | Commercial / Residential |
| ETL Listed | Yes | Energy Star Compliant | No |
| Engine Displacement (cc) | 993 | Engine Make | Briggs & Stratton |
| Engine brand | Briggs & Stratton | Engine manufacturer | Briggs & Stratton |
| Frequency | 60 Hz | Height | 35 in |
| Hour Meter | Yes | Low oil shutdown | Yes |
| Manufacturer Warranty | 5 Year, 2000 hour Limited | Operational volume (dB) | 62 |
| Product Height (in.) | 35 | Product Length (in.) | 52.7 |
| Product Weight (lb.) | 630 | Product Width (in.) | 40.8 |
| Rated Wattage | 19752 | Rated wattage liquid propane (watts) | 19500 |
| Rated wattage natural gas (watts) | 17280 | Remote Monitoring | Built-In |
| Response time (sec.) | 12 | Returnable | Non-Returnable |
| Sound Decibels | 62 dB | Warranty Information | 5 Year Limited |
| Width | 40.8 in |
