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Cummins RS125 125kW Standby Generator Dual Fuel Propane Natural Gas Liquid Cooled 3 Phase 120/240V CARB A063A453 New

CumminsModel A063A453

Cummins RS125 125kW Standby Generator Dual Fuel Propane Natural Gas Liquid Cooled 3 Phase 120/240V CARB

  • Peak125 kW
  • Running100 kW
  • FuelNG / LP
  • StartAutomatic
Black Friday price
$28,219.00

Black Friday price ends in —

In stock Ships within 24 hours

Free delivery Wed, Nov 18 – Mon, Nov 23 if you order today, by Expedited LTL freight to your curb or driveway.

Other versions of this model

This one$28,219.00RS125 · 480V$28,219.00RS125 · 208V$28,219.00RS125$29,039.00
  • Free shipping48 states + DC
  • 30-day returnsReturn shipping on us
  • Full warrantyBrand-new, from the maker
  • Secure checkoutEncrypted by Stripe
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Questions before you buy? Our small team in Wilmington, NC answers every message personally. Email support@barnwatt.com Call (910) 232-3233

The Cummins RS125 Quiet Connect is a 125kW commercial standby generator built for natural gas or LP propane operation.

Running watts
100,000 W
Starting watts
125,000 W
Fuel
Natural gas or propane
Start
Automatic
SKU: A063A453
Category: , , ,

The Cummins RS125 Quiet Connect is a 125kW commercial standby generator built for natural gas or LP propane operation. It features a liquid-cooled 8.9L turbocharged and aftercooled inline 6-cylinder engine. The generator is designed for reliable performance in extreme conditions, and includes PowerCommand 2.3 electronic control for automatic operation and fault monitoring. Its powder-coated aluminum enclosure helps reduce sound levels while providing durable weather protection.

Full specifications

BrandCummins
ModelA063A453
Running watts100,000 W
Starting watts125,000 W
FuelNatural gas or propane
StartAutomatic
How it shipsExpedited LTL freightTo your curb or driveway, free
Order today, deliveredWed, Nov 18 – Mon, Nov 23Leaves our warehouse within 24 hours

It travels on a pallet. The carrier calls ahead to book a delivery window; please have help on hand to move it.

  1. Answer the carrier’s call to book your delivery window.
  2. Keep a clear, level spot on your driveway or at the curb for unloading.
  3. Have help on hand. Freight drivers don’t carry items onto your property.
  4. Inspect before you sign and photograph any damage. Tell us within 48 hours.

We ship to the 48 contiguous states and Washington, DC. Shipping details · 30-day free returns

Brand-new, with the full manufacturer’s warranty. The terms are set by Cummins and included in the box. If something goes wrong, contact us first: we confirm the next steps within 2 business days and help you file the claim.

Home standby checklist
  • Installation is not included. Use a licensed electrician and, for the gas line, a licensed gas contractor, with local permits.
  • Register the unit with the manufacturer after installation; some brands shorten the warranty if you don’t.
  • Keep the paperwork: order confirmation, installer’s invoice and permit sign-off.
  • Follow the maintenance schedule in the owner’s manual.

How warranty claims work

What it can run

100,000 W running, 125,000 W starting

Pick what you want to power at the same time.

Typical wattages - check the label on your own appliances. Where only one figure is published, running watts are estimated at 80% of the starting figure. Connect to house circuits only through a transfer switch or interlock fitted by a licensed electrician.

Compare similar generators

Same power class, side by side.

SpecificationCummins RS125 125kW Standby Generator Dual Fuel Propane Natural Gas Liquid Cooled 3 Phase 120/240V CARBThis generator$28,219.00Generac RG13089KNAC 130kW Standby Generator Liquid Cooled Dual Fuel Natural Gas Propane 277/480V 3 Phase$26,369.00Kohler 150ERESC-MV12 150KW 277/480V 3-Phase Standby Generator Steel$34,089.00
Running watts100,000 W104,000 W120,000 W
Starting watts125,000 W130,000 W150,000 W
FuelNatural gas or propaneNatural gas or propaneNatural gas or propane
StartAutomaticAutomaticAutomatic
LinkYou are hereView →View →

Questions and answers

Answered by our team in Wilmington. Can’t find yours? Ask below.

Can I connect this generator to my house?
Only through a transfer switch or an interlock kit installed by a licensed electrician. Never plug a generator into a wall outlet: it can back-feed the utility line and endanger line workers. Connecting safely.
What can it run at the same time?
Use the What it can run planner above: tick your appliances and it checks both the running load and the start-up surge against this generator.
Does it ship with oil?
It depends on the manufacturer. If oil is included it is listed under What’s in the box; otherwise use the grade given in the owner’s manual before the first start.
Can I use it in the rain?
Not uncovered. Run it on a dry surface under an open, canopy-like cover, at least 20 feet from doors, windows and vents, and never in a garage.
Is installation included?
No. A home standby generator needs a licensed electrician, a licensed gas contractor for the fuel line and local permits. Delivery to your curb or driveway is free.
How will it be delivered?
Free, by Expedited LTL freight to your curb or driveway, usually within 2–5 business days after it ships. It travels on a pallet. The carrier calls ahead to book a delivery window; please have help on hand to move it.
What if it arrives damaged?
Photograph it and email us within 48 hours of delivery. We replace or refund damaged items at no cost to you.
Ask a questionWe reply personally by email.

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