Cummins RS20AC: Specs & Datasheet

Cummins RS20AC: Specs & Datasheet

MPN: RS20AC

The Cummins RS20AC is listed under standby generators in the Cummins catalog at Portlandia Electric Supply. Contractors and buyers searching “RS20AC” for specifications or the datasheet land here: below are the published specifications we have on file for this exact part number, plus compatibility and sourcing notes. Key published ratings: Voltage 120/240V.

Specifications

Manufacturer Cummins
MPN RS20AC
Rated Power Output 20 kW
Voltage 120/240V
Phase Single Phase
Frequency 60 Hz
Fuel Type Natural Gas / Propane
Voltage Regulation Automatic
Engine Type Cummins air-cooled engine
Cooling System Air cooled
Start Type Automatic with included ATS
Sound Level Low noise with Quiet Connect technology
ATS Amperage 200A
Type Service Entrance (SE)
Enclosure Rating NEMA 3R (outdoor rated)
Application Whole-house power transfer
Enclosure Material Aluminum, corrosion-resistant
Mounting Compatible with standard generator pads

Compatible With / Used In

  • Generators applications — manufacturer-listed product category for this part number
  • Exact part-number replacements — this page covers MPN RS20AC only — confirm the full part number on your unit, quote, or datasheet before ordering
  • Contractor and installer sourcing — quantity pricing and nationwide shipping from Portlandia Electric Supply — call (502) 790-0600

Datasheet Availability

Cummins publishes datasheets and installation documents through its official website. For the RS20AC datasheet PDF specifically, call (502) 790-0600 and we will include it with your quote.

● In stock at PES Supply → In stock at Portlandia Electric Supply — ships nationwide with quantity pricing for installers.
View the RS20AC product page →Get a quote →
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Frequently Asked Questions

What are the specs of the Cummins RS20AC?

Key published specs — Rated Power Output: 20 kW; Voltage: 120/240V; Phase: Single Phase; Frequency: 60 Hz. The full specification table above lists every value we have on file; values marked “vendor listing” are from our supplier feed and pending manufacturer verification.

Where can I get the RS20AC datasheet?

Cummins publishes datasheets and installation documents through its official website. For the RS20AC datasheet PDF specifically, call (502) 790-0600 and we will include it with your quote.

Is the Cummins RS20AC in stock?

Yes — in stock at Portlandia Electric Supply with nationwide shipping. Call (502) 790-0600 for pricing and lead time.

How do I make sure the RS20AC is the right part?

Match the full part number RS20AC exactly against your unit, quote, or existing datasheet — part-number families differ in ratings. Call (502) 790-0600 and our team will verify it before you order.

Specifications sourced from the manufacturer listing data maintained by Portlandia Electric Supply. Where a value is not published, it is marked as such — we do not estimate specifications. Questions: call (502) 790-0600. Portlandia Electric Supply, Louisville, KY — 12+ US distribution hubs.