Secure whole-house power protection with the Cummins 20kW Home Standby Generator (Model RS20AC). Part of the dependable Quiet Connect series and bundled with a 200-amp SE-rated automatic transfer switch, this 120/240-Volt single-phase system delivers 20kW on liquid propane and 18kW on natural gas, effortlessly starting and running a 5-ton air conditioner under a full household load.
Powered by a heavy-duty Cummins QSJ999G 999cc V-Twin engine, the RS20AC features cloud-connected remote monitoring via mobile app and operates at an extremely quiet 65 dBA or less. Housed within a durable, corrosion-resistant aluminum enclosure rated for installation as close as 18 inches to a home, it is engineered to function reliably down to 0 degrees Fahrenheit right out of the box.
Key Features
- Cummins 20kW Quiet Connect Series Home Standby Generator
- Includes 200-Amp SE-Rated Indoor/Outdoor Automatic Transfer Switch (RA Series)
- Cummins QSJ999G 999cc V-Twin Engine Running on Natural Gas or LP Propane
- Starts and Runs a 5-Ton A/C Unit under Full Household Load
- Cloud Connect App for Remote Monitoring and Operation
- Extremely Quiet Operation – 65 dBA or Less at 23 Feet
- Rated for Close Installation—As Close as 18 Inches to a Home
- Reliable Cold-Weather Operation Down to 0 Degrees Out of the Box
- Flexible, No-Start Exercise Scheduling Options
- UL-2200 Listed and Proudly Built in the USA
- Cummins 5-Year / 2,000-Hour Limited Warranty
Specifications
| Manufacturer | Cummins Power Generation |
|---|---|
| Model Number | RS20AC (C20N6HC) |
| Series Name | Quiet Connect Series |
| Type | Standby Generator System with Transfer Switch |
| Rated Power - LP | 20 kW |
| Rated Power - Natural Gas | 18 kW |
| Rated Amps | 83.3 Amps |
| Voltage | 120/240 Volts Single Phase |
| A/C Ton Rating | 5-Ton |
| Enclosure | Aluminum (Corrosion Resistant) |
| UL Listed | UL-2200 |
| Decibel Rating | 65 dBA @ 23 Feet |
| Starting System | Automatic Start |
| Low Oil Alert | Low Oil Shutdown |
| Mainline Breaker | 100 Amps |
| Hour Meter | Integrated Controller |
| Battery Requirement | 12-Volt Group 51R, 450 CCA Minimum (Required) |
| Mounting Pad | Requires Prepared Site |
| Generator Dimensions (L x W x H) | 34.1 x 36 x 27.3 Inches |
| Generator Weight | 596 Pounds |
| Engine Brand | Cummins QSJ999G 4-Cycle |
| Engine Size | 999 cc V-Twin |
| Engine RPM | 3600 RPM |
| Cooling System | Air Cooled |
| Alternator Type | 120/240-Volt 2-Pole |
| Frequency | 60 Hz |
| Auto Voltage Regulation | Yes |
| Fuel Type | Natural Gas (NG) or Propane (LP) |
| NG Consumption @ Full Load | 268 Cubic Feet per Hour |
| NG Consumption @ Half Load | 172 Cubic Feet per Hour |
| LP Consumption @ Full Load | 3.1 Gallons per Hour |
| LP Consumption @ Half Load | 1.8 Gallons per Hour |
| Transfer Switch Model | RA Series (P/N A064G549) - 200A Whole House SE-Rated Switch |
| Transfer Switch Weight | 46 Pounds |
| Made In USA | Yes |
| Warranty | Cummins 5-Year / 2000-Hour Limited Warranty |
- Brand: Cummins Power Generation
- Product Code: RS20AC-A
- Availability: In Stock