Cummins RA 400 Amp
Cummins RA 400 Amp
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SKU  PES-PA-ELC-1467

Cummins RA 400 Amp NSE 240V 1ph Automatic Transfer Switches - A050W633

Cummins RA 400 Amp NSE 240V 1ph Automatic Transfer Switches - A050W633

$2,135.61 USD
$ $2,135.61 USD
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truck
In Stock

Get yours today!

truck
9+ sold

In the last 7 days

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Flat Rate Shipping - Calculated at Checkout

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Lifetime Customer Support

Unlimited lifetime support, always available.

In High Demand! Order Now To Secure Your Items

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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 RA 400 Amp NSE 240V 1-Phase Automatic Transfer Switch

Model A050W633 (RA412N3) | 400 Amp | 120/240V Single-Phase, 2-Pole | Non-Service Entrance (NSE) | NEMA 3R Aluminum Enclosure | UL 1008 Listed | Compatible with Cummins RS Series Generators

400 A
Continuous Amperage
120/240V
Single-Phase Voltage
NEMA 3R
Indoor/Outdoor Enclosure
UL 1008
Safety Listed

Product Overview

The Cummins RA 400 Amp NSE (Non-Service Entrance) 240V 1-Phase Automatic Transfer Switch (MPN A050W633) is designed to provide seamless and reliable power transfer between utility power and backup generators. With a 400 Amp capacity, this unit is ideal for large residential, commercial, and industrial applications that require higher power output. The NSE-rated switch ensures the safe and automatic transfer of loads during outages, while providing safe and efficient operation in critical systems. It is UL 1008 listed and NEC compliant for safety and reliability.

This 2-pole switch uses a powerful solenoid and a break-before-make connection — utility power is disconnected before generator power is connected, and the same make-before-break action occurs on transfer back to utility. Electrical and mechanical interlocks prevent the simultaneous connection of utility and generator power, ensuring the two sources are never connected at the same time.

Key Features

400 Amp Capacity: Perfect for large-scale residential and commercial applications requiring higher power output.

120/240V, 1-Phase System: Reliable power distribution for demanding standby power installations.

Non-Service Entrance (NSE) Configuration: Suitable for installations that do not require a service entrance-rated unit; requires a sub-panel for overload protection.

Automatic Transfer Function: Automatically switches between utility power and backup generator for uninterrupted service, with no homeowner action required.

UL 1008 Listed & NEC Compliant: Meets all necessary safety and operational standards, including NEMA ICS 10 and NFPA 70 requirements.

Simple Cummins Generator Integration: Designed for use with Cummins Quiet Connect Air Cooled and Liquid Cooled RS Series generators for enhanced reliability and performance.

Installation & Application

This ATS is ideal for installations that require higher amperage capacity and do not need a service entrance. It provides automatic power transfer from utility to generator during power outages, making it perfect for residential, commercial, and industrial settings that need consistent backup power. With its easy integration with Cummins generators, this transfer switch is an essential part of any reliable backup power system. The unit is UL 1008 listed and compliant with the National Electrical Code (NEC) for safety and performance.

Installation: Field-installable by a certified Cummins technician or licensed electrician; NEMA 3R aluminum enclosure supports indoor or outdoor mounting.

Specifications

MPN A050W633
Model RA412N3
Vendor Cummins
Amperage 400 Amps
Voltage 120/240V
Phase Type 1-Phase, 2-Pole
Transfer Type Automatic
Service Rating Non-Service Entrance (NSE)
Enclosure NEMA 3R Aluminum, Indoor/Outdoor
Weight 64 lb (29 kg)
Dimensions (H × W × D) 36.9 × 24.6 × 11.3 in
Compatibility Cummins Quiet Connect RS Series Generators (C30N6–C80N6)

Warranty & Compliance

Meets UL 1008 (Transfer Switch Equipment) standards for safety and compliance.
Compliant with National Electrical Code (NEC) and National Fire Protection Association (NFPA) requirements.
Covered by Cummins' 2-Year Limited Warranty for peace of mind and long-term support.
Approved for use with Cummins Quiet Connect RS Series generator models.

● Available | Order now and power your future with clean energy!

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

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 RA 400 Amp NSE 240V 1-Phase Automatic Transfer Switch

Model A050W633 (RA412N3) | 400 Amp | 120/240V Single-Phase, 2-Pole | Non-Service Entrance (NSE) | NEMA 3R Aluminum Enclosure | UL 1008 Listed | Compatible with Cummins RS Series Generators

400 A
Continuous Amperage
120/240V
Single-Phase Voltage
NEMA 3R
Indoor/Outdoor Enclosure
UL 1008
Safety Listed

Product Overview

The Cummins RA 400 Amp NSE (Non-Service Entrance) 240V 1-Phase Automatic Transfer Switch (MPN A050W633) is designed to provide seamless and reliable power transfer between utility power and backup generators. With a 400 Amp capacity, this unit is ideal for large residential, commercial, and industrial applications that require higher power output. The NSE-rated switch ensures the safe and automatic transfer of loads during outages, while providing safe and efficient operation in critical systems. It is UL 1008 listed and NEC compliant for safety and reliability.

This 2-pole switch uses a powerful solenoid and a break-before-make connection — utility power is disconnected before generator power is connected, and the same make-before-break action occurs on transfer back to utility. Electrical and mechanical interlocks prevent the simultaneous connection of utility and generator power, ensuring the two sources are never connected at the same time.

Key Features

400 Amp Capacity: Perfect for large-scale residential and commercial applications requiring higher power output.

120/240V, 1-Phase System: Reliable power distribution for demanding standby power installations.

Non-Service Entrance (NSE) Configuration: Suitable for installations that do not require a service entrance-rated unit; requires a sub-panel for overload protection.

Automatic Transfer Function: Automatically switches between utility power and backup generator for uninterrupted service, with no homeowner action required.

UL 1008 Listed & NEC Compliant: Meets all necessary safety and operational standards, including NEMA ICS 10 and NFPA 70 requirements.

Simple Cummins Generator Integration: Designed for use with Cummins Quiet Connect Air Cooled and Liquid Cooled RS Series generators for enhanced reliability and performance.

Installation & Application

This ATS is ideal for installations that require higher amperage capacity and do not need a service entrance. It provides automatic power transfer from utility to generator during power outages, making it perfect for residential, commercial, and industrial settings that need consistent backup power. With its easy integration with Cummins generators, this transfer switch is an essential part of any reliable backup power system. The unit is UL 1008 listed and compliant with the National Electrical Code (NEC) for safety and performance.

Installation: Field-installable by a certified Cummins technician or licensed electrician; NEMA 3R aluminum enclosure supports indoor or outdoor mounting.

Specifications

MPN A050W633
Model RA412N3
Vendor Cummins
Amperage 400 Amps
Voltage 120/240V
Phase Type 1-Phase, 2-Pole
Transfer Type Automatic
Service Rating Non-Service Entrance (NSE)
Enclosure NEMA 3R Aluminum, Indoor/Outdoor
Weight 64 lb (29 kg)
Dimensions (H × W × D) 36.9 × 24.6 × 11.3 in
Compatibility Cummins Quiet Connect RS Series Generators (C30N6–C80N6)

Warranty & Compliance

Meets UL 1008 (Transfer Switch Equipment) standards for safety and compliance.
Compliant with National Electrical Code (NEC) and National Fire Protection Association (NFPA) requirements.
Covered by Cummins' 2-Year Limited Warranty for peace of mind and long-term support.
Approved for use with Cummins Quiet Connect RS Series generator models.

● Available | Order now and power your future with clean energy!
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Customer Success Stories

Troy P

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.

Jacob B

Easy Process, Genuine Support

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.

Patrick B

Off Grid Solar Purchase

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!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

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.

Troy P

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.

Jacob B

Easy Process, Genuine Support

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.

Patrick B

Off Grid Solar Purchase

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!

James Martin

Highly Recommend

I would like to take the time to express the outstanding service that I was provided with by Portlandia Electric Supply. They provided me with all the answers to my questions, and after reviewing our quote over the phone I felt comfortable proceeding to order my kit. It’s exactly what I needed and they were there to help us over the phone when we had questions installing it. I highly recommend others in need to choose Portlandia Electric Supply.

Brian H

Solar Kit for Mobile Work Van

As a professional videographer, I needed reliable power on the go.Portlandia Electric Supply Delta Pro and roof-mounted panels were the perfect solution. Setup was easy, and the kit included everything needed. The Delta Pro powers my cameras, lights, laptop, and a small fridge with impressive battery capacity.

Keith S

Best Tech Support

You folks have been wonderful guiding me through the ins and outs of going solar. Plus your tech guys Rod and Nelson are the absolute best. They explained all the different aspects of inverters, batteries and how to keep them in top condition. Too much more to put here… but no other company has the 100% tech support you provide for your customers!

Coll A

Great Experience

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.

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Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

Shop Securely, Trusted Supplier, 100% Satisfaction

Trusted Company, Real Products, Lifetime Support

Avoid Scams, Buy with Confidence, Enjoy Peace of Mind

Manufacturer Warranty, Exceptional Service

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When you choose Portlandia Electric Supply, you’re buying real products from a trusted company with established supplier relationships. Enjoy peace of mind with 100% manufacturer warranty coverage and lifetime customer support. In an age where online shopping is fraught with risks, it’s crucial to avoid fly-by-night websites that skirt regulations. Shop with confidence, knowing you’re getting genuine quality and reliable service.

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