What is the power output of the Cummins RS150 generator?

The Cummins RS150 delivers a robust 150 kW (188 kVA) standby power at 60 Hz, suitable for commercial and industrial applications.

What type of engine does the RS150 use?

It features an 8.9 L turbocharged, after-cooled inline-6 liquid-cooled engine, designed for reliable performance at 1800 rpm.

Can the RS150 run on multiple fuels?

Yes, the RS150 supports dual-fuel operation and can run on natural gas or propane, field-selectable.

How quiet is the Cummins RS150 generator?

The sound-attenuated aluminum enclosure ensures approximately 71 dB(A) at 7 meters, providing low-noise operation.

Is the RS150 suitable for cold climates?

Yes, it’s designed to operate reliably in extreme conditions down to –40 °F (–40 °C).

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Cummins RS150 150kW Standby Generator | 3-Phase 277/480V | Quiet Connect

Cummins RS150 150kW Standby Generator | 3-Phase 277/480V | Quiet Connect

Cummins RS150 Standby Generators 150kW - 480V | Portlandia Electric Supply

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Cummins RS150 150kW Standby Generator | 3-Phase 277/480V | Quiet Connect

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$50,230.86 USD

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In Stock

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9+ sold

In the last 7 days

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Cummins RS150 150kW Standby Generator | 3-Phase 277/480V | Quiet Connect $50,230.86

Specifications

Datasheet

Wattage 150kW standby

Fuel Type Natural Gas / LP (Liquid Propane)

Voltage 277/480V

What is your return policy?

Returns are free in the first 30 days with no restocking or processing fees, although the customer may be responsible for paying return shipping. See our complete return policy on our Shipping, Delivery, and Returns page linked in the footer of this website.

What’s covered by your return policy?

Our returns policy covers all purchases made through Portlandia Electric Supply. For warranty issues, as authorized distributors, we honor the full manufacturer warranty of ALL the brands on our website. See our complete returns and warranty policies on our Shipping, Deliver, and Returns page.

How long will it take to receive my order?

All orders are processed within 72 hours and you can expect delivery on most orders within 5-7 business days. You will receive access to our customer portal after ordering, where it is easy to track all your shipments. See our Shipping, Delivery and Returns page for more details.

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Our legendary lifetime customer support has helped make us the #1 online solar retailer! We have a dedicated team of solar professionals standing by to help you navigate the world of solar with ease. From selecting the perfect solar kit to installation and beyond, we provide support and expertise at every step of the journey.If you need help with ordering, shipping, troubleshooting, expanding your system, warranty issues, or anything else you have questions about for as long as you own your Portlandia Electric Supply equipment, we’ve got you covered: we’re always only a phone call or email away.

Cummins RS150 – 150 kW Quiet Connect Series 277/480 V Three-Phase Liquid-Cooled Standby Generator

The Cummins RS150 Quiet Connect Series standby generator (MPN A063A484) delivers a robust 150 kW of power output in a 277/480 V three-phase configuration. Designed for demanding commercial, industrial, and large facility applications, it combines Cummins reliability with Quiet Connect technology to ensure stable, low-noise performance. With its liquid-cooled 8.9 L engine, advanced controls, and durable enclosure, the RS150 provides consistent backup power even in extreme conditions.

Key Features

150 kW (188 kVA) standby rated power at 60 Hz
Three-phase 277/480 V output for high-capacity electrical systems
8.9 L turbocharged, after-cooled inline-6 liquid-cooled engine operating at 1800 rpm
Dual-fuel operation – supports natural gas or propane (field-selectable)
Sound-attenuated aluminium enclosure rated at approximately 71 dB(A) @ 7 m
Cummins PowerCommand® 2.3 digital controller ensures precise voltage and frequency regulation
Automatic low-emission self-exercise mode for optimized fuel economy and system health
Cold weather capable – designed to operate reliably down to –40 °F (–40 °C)

Electrical Specifications (Standby Rating)

Rated Power (Pmax)	150 kW
Apparent Power (kVA)	188 kVA
Voltage	277/480 V, Three-Phase
Frequency	60 Hz
Voltage Regulation	±1.0 %
Frequency Regulation	±0.25 %
Sound Level @ 7 m	~71 dB(A)
Enclosure Wind Rating	Up to 180 mph

Mechanical & Engine Data

Engine Model	8.9 L Turbocharged After-Cooled Inline-6
Rated Speed	1800 rpm
Cooling System	Liquid-Cooled
Enclosure Material	Powder-Coated Aluminium
Dimensions (L × W × H)	143 in (3621 mm) × 40 in (1016 mm) × 72 in (1836 mm)
Weight	≈ 4200 lb (1905 kg)

Warranty & Compliance

2-year limited warranty for standby operation (optional extended coverage available)
UL 2200 listed and EPA stationary certified for emission standards
NFPA 110 capable configuration with automatic transfer switch compatibility
IBC seismic and wind certified for industrial and commercial sites

Environmental & Site Ratings

Operating Temperature Range	–40 °F (–40 °C) to 122 °F (50 °C)
Wind Load Capacity	Up to 180 mph
Sound Attenuation Level	~71 dB(A) @ 7 m

What is your return policy?

What’s covered by your return policy?

How long will it take to receive my order?

What are your financing and payment options?

We offer several ways to pay to make getting your solar kit simple:

Credit Card: if the purchase is greater than your card’s limit, you can split the cost onto multiple cards as well as Paypal, financing through Affirm, and ACH/bank transfer

You can arrange financing during the checkout process, or scroll further down this page for more details. Please note, if you'd like to finance your order, you can do so instantly, right at checkout.

How does your Lifetime Customer Support work?

Cummins RS150 – 150 kW Quiet Connect Series 277/480 V Three-Phase Liquid-Cooled Standby Generator

Key Features

150 kW (188 kVA) standby rated power at 60 Hz
Three-phase 277/480 V output for high-capacity electrical systems
8.9 L turbocharged, after-cooled inline-6 liquid-cooled engine operating at 1800 rpm
Dual-fuel operation – supports natural gas or propane (field-selectable)
Sound-attenuated aluminium enclosure rated at approximately 71 dB(A) @ 7 m
Cummins PowerCommand® 2.3 digital controller ensures precise voltage and frequency regulation
Automatic low-emission self-exercise mode for optimized fuel economy and system health
Cold weather capable – designed to operate reliably down to –40 °F (–40 °C)

Electrical Specifications (Standby Rating)

Rated Power (Pmax)	150 kW
Apparent Power (kVA)	188 kVA
Voltage	277/480 V, Three-Phase
Frequency	60 Hz
Voltage Regulation	±1.0 %
Frequency Regulation	±0.25 %
Sound Level @ 7 m	~71 dB(A)
Enclosure Wind Rating	Up to 180 mph

Mechanical & Engine Data

Engine Model	8.9 L Turbocharged After-Cooled Inline-6
Rated Speed	1800 rpm
Cooling System	Liquid-Cooled
Enclosure Material	Powder-Coated Aluminium
Dimensions (L × W × H)	143 in (3621 mm) × 40 in (1016 mm) × 72 in (1836 mm)
Weight	≈ 4200 lb (1905 kg)

Warranty & Compliance

2-year limited warranty for standby operation (optional extended coverage available)
UL 2200 listed and EPA stationary certified for emission standards
NFPA 110 capable configuration with automatic transfer switch compatibility
IBC seismic and wind certified for industrial and commercial sites

Environmental & Site Ratings

Operating Temperature Range	–40 °F (–40 °C) to 122 °F (50 °C)
Wind Load Capacity	Up to 180 mph
Sound Attenuation Level	~71 dB(A) @ 7 m

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EG4 off-grid base kit, Happy with my purchase.

This is the first stage of my three planned purches. I got the eg4 inverter 6000 XP base kit with six 400 watt panels and the two server rack batteries. Did a little online research and followed the instructions and it got set up without any issues. Right now I'm just running it in my garage on a single outlet and have been running dual 750 watt water distillers with it. Once I get the second inverter and a bunch more panels and batteries, I plan on attaching it to my subpanel in my house that has my lights and outlets and appliances on it. Then I'll get a soft start for my AC and blower and run it on my main panel.

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Trying to pick the correct solar system for your needs can be very technical and frustrating. I wanted to thank Yvhan and the Portlandia Electric supply team for their patience and helpful attitudes through multiple calls. I feel like we were able to narrow it down to what worked for me and my family. My system works great and I couldn't be happier to have picked Portlandia Electric Supply.

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I wanted to get an offgrid solar system for years but didn’t know where to start. I found Portlandia Electric Supply on Facebook and decided to submit a quote. Within 24 hours I had a custom proposal that was almost half the price of the companies I had previously got quotes from. My wife and I decided to order online and the kit came in a timely manner and it was an easy install. Great company to work with!

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My experience with Portlandia Electric Supply has been excellent. Before the sales, they answered all my questions to assure that I got what I needed. After the sales they continued to support me with answers and help. I had a warranty issue with a unit, and it was handled as well as possible. I would recommend them to anyone looking to go solar.