20kW Air-Cooled Residential Standby Generator, Quiet Connect Automatic Power System

The Cummins Quiet Connect Extreme Cold RS20AE is a permanently installed standby generator designed to power your home during outages. Running on natural gas or propane, it restores electricity within seconds of utility loss and operates automatically.

Built with a corrosion-resistant aluminum enclosure and heavy-duty internal components, it is engineered for long-term outdoor installation. Equipped with Cummins’ Extreme Cold Weather Kit, it is rated for operation in temperatures as low as -40°F (-40°C).

With 20kW of output capacity, the RS20AE supports larger residential loads including HVAC systems, refrigerators, sump pumps, lighting circuits, and essential appliances. The Quiet Connect system includes a digital control panel and remote monitoring through Cummins Connect Cloud™.

What’s the Extreme Cold Weather Kit?

Your generator includes Cummins’ Extreme Cold Weather Kit, supporting reliable operation in extreme winter conditions.

The kit integrates engine and battery heating components to:

Ensure reliable starting in severe cold
Maintain battery and oil temperature
Reduce condensation and moisture-related issues
Protect internal components during winter operation

Electrical Specifications

• Rated Output (LP): 20,000 watts

• Rated Output (NG): 18,000 watts

• Voltage: 120 / 240V

• Frequency: 60 Hz

• Amperage: 83A (LP) / 75A (NG)

Fuel Consumption

Natural Gas

• 205 ft³/hr @ 50% load

• 300 ft³/hr @ 100% load

Liquid Propane

• 2.0 gal/hr @ 50% load

• 3.0 gal/hr @ 100% load

Engine & Operation

• Engine displacement: 999cc

• Engine speed: 3600 RPM

• Cast-iron cylinder sleeve

• Automatic low-oil pressure shutdown

• 12V automatic start system

Physical Specifications

• Length: 34-1/8"

• Width: 36"

• Height: 27-5/16"

• Weight: 540 lbs

• Cooling: Air-cooled

• Enclosure: Aluminum / steel