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Cummins OTEC 600 NSE 600 Amp NSE 240V 1ph Automatic Transfer Switches - A075F146 | Portlandia Electric Supply
Cummins OTEC 600 NSE 600 Amp NSE 240V 1ph Automatic Transfer Switches - A075F146 | Portlandia Electric Supply
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Cummins OTEC 600 NSE 600 Amp NSE 240V 1ph Automatic Transfer Switches - A075F146

Cummins OTEC 600 NSE 600 Amp NSE 240V 1ph Automatic Transfer Switches - A075F146

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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 OTEC 600 Amp NSE 240V 1-Phase Automatic Transfer Switch

A075F146 | Microprocessor Control | 3-Pole | NEMA 3R | 240V System Voltage

600A
Rated Amperage
240V
Voltage Rating
NSE
Non-Service Entrance

Product Overview

The Cummins OTEC 600 Amp NSE Automatic Transfer Switch ensures reliable backup power for large single-phase operations. This robust OEM-grade unit handles heavy loads up to 600A at 240V single-phase. It is ideal for estates, farms, and commercial buildings requiring seamless power switching. The device monitors utility power and automatically transfers the load to generator power during outages. When utility power stabilizes, the system safely restores the load to the primary source. This high-capacity Automatic Transfer Switch (ATS) prevents downtime in critical applications. Its advanced microprocessor controller delivers precise load management and long-term durability. The corrosion-resistant steel enclosure supports both commercial and protected outdoor environments. Compatible with Cummins OTEC-series and high-capacity standby generators, it offers versatile installation options. This solution protects significant load demands in agricultural and industrial sites using single-phase power systems. The NSE configuration ensures flexible integration without acting as the main service entrance. Users benefit from superior reliability and automatic transition between utility and generator energy sources.

Key Benefits

Heavy-Load Capacity: The 600A rating supports demanding 240V single-phase applications for large estates and farms.

Seamless Power Switching: Automatic transition ensures uninterrupted service between utility and generator power sources during outages.

Precise Microprocessor Control: The advanced controller delivers accurate monitoring, switching, and programmable timing for optimal performance.

Industrial Durability: Silver alloy contacts and a corrosion-resistant steel enclosure ensure long service life in harsh environments.

Versatile Installation: The Non-Service Entrance (NSE) configuration allows flexible integration into various commercial and residential systems.

How It Works

The Cummins OTEC 600 Amp NSE Automatic Transfer Switch maintains continuous uptime by monitoring incoming utility power constantly. When an outage occurs, the system signals the generator to start up immediately. It then automatically transfers the electrical load from the utility to the generator power source. This break-before-make action prevents source-to-source connection for safe operation. Once stable utility conditions return, the switch safely restores the load to the primary service. The microprocessor-based controller manages this entire process with precise timing and voltage sensing. This ensures reliable power delivery for mission-critical single-phase applications without interruption.

Utility Power Monitoring: The controller continuously senses voltage levels on the utility source to detect any power failures instantly. It triggers the generator startup sequence when voltage drops below the safe threshold.

Automatic Load Transfer: A bi-directional linear actuator provides friction-free, constant-force transfer action between sources. Mechanical and electrical interlocks prevent dangerous connections between utility and generator power.

Restoration to Utility: The system re-monitors the utility source until stable conditions are confirmed. It then reverses the transfer process to restore the load to the primary power source safely.

Technical Specifications

Part Number (MPN) A075F146
Manufacturer Cummins
Product Type Automatic Transfer Switch (NSE)
Rated Amperage 600A
Voltage Rating 240V AC
Phase Configuration Single Phase (1Ph)
Number of Poles 3-Pole
Enclosure Type Non-Service Entrance (NSE)
Enclosure Rating NEMA 3R (Outdoor)
Control System PowerCommand 40-11 Microprocessor
Display Type LCD Digital Display with Soft Switches
Transition Type Open Transition (Break-Before-Make)
Contact Material High-Pressure Silver Alloy
Actuator Mechanism Bi-Directional Linear Motor Actuator
Frequency 60 Hz
Application Level Commercial / Large Residential / Agricultural
Installation Requirement Certified Cummins Technician or Licensed Electrician
Dimensions 54.0"H x 25.5"W x 18.0"D
Weight 335 lbs

Certifications & Compliance

Certifications: UL 1008 Listed, CSA 282 Compliant, NEC 700-702 Compliant
Inverter Compatibility: Approved for Cummins OTEC-series commercial standby generators
Environmental: Complies with NFPA 70, NFPA 99, NFPA 110, IEEE 446, NEMA ICS 10
Warranty: Genuine Cummins OEM component with 1-Year Limited Warranty

Documentation

S-1639 OTEC Spec C

● Available | Contact us for lead time and pricing

Customer Reviews

Be the first to write a review
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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 OTEC 600 Amp NSE 240V 1-Phase Automatic Transfer Switch

A075F146 | Microprocessor Control | 3-Pole | NEMA 3R | 240V System Voltage

600A
Rated Amperage
240V
Voltage Rating
NSE
Non-Service Entrance

Product Overview

The Cummins OTEC 600 Amp NSE Automatic Transfer Switch ensures reliable backup power for large single-phase operations. This robust OEM-grade unit handles heavy loads up to 600A at 240V single-phase. It is ideal for estates, farms, and commercial buildings requiring seamless power switching. The device monitors utility power and automatically transfers the load to generator power during outages. When utility power stabilizes, the system safely restores the load to the primary source. This high-capacity Automatic Transfer Switch (ATS) prevents downtime in critical applications. Its advanced microprocessor controller delivers precise load management and long-term durability. The corrosion-resistant steel enclosure supports both commercial and protected outdoor environments. Compatible with Cummins OTEC-series and high-capacity standby generators, it offers versatile installation options. This solution protects significant load demands in agricultural and industrial sites using single-phase power systems. The NSE configuration ensures flexible integration without acting as the main service entrance. Users benefit from superior reliability and automatic transition between utility and generator energy sources.

Key Benefits

Heavy-Load Capacity: The 600A rating supports demanding 240V single-phase applications for large estates and farms.

Seamless Power Switching: Automatic transition ensures uninterrupted service between utility and generator power sources during outages.

Precise Microprocessor Control: The advanced controller delivers accurate monitoring, switching, and programmable timing for optimal performance.

Industrial Durability: Silver alloy contacts and a corrosion-resistant steel enclosure ensure long service life in harsh environments.

Versatile Installation: The Non-Service Entrance (NSE) configuration allows flexible integration into various commercial and residential systems.

How It Works

The Cummins OTEC 600 Amp NSE Automatic Transfer Switch maintains continuous uptime by monitoring incoming utility power constantly. When an outage occurs, the system signals the generator to start up immediately. It then automatically transfers the electrical load from the utility to the generator power source. This break-before-make action prevents source-to-source connection for safe operation. Once stable utility conditions return, the switch safely restores the load to the primary service. The microprocessor-based controller manages this entire process with precise timing and voltage sensing. This ensures reliable power delivery for mission-critical single-phase applications without interruption.

Utility Power Monitoring: The controller continuously senses voltage levels on the utility source to detect any power failures instantly. It triggers the generator startup sequence when voltage drops below the safe threshold.

Automatic Load Transfer: A bi-directional linear actuator provides friction-free, constant-force transfer action between sources. Mechanical and electrical interlocks prevent dangerous connections between utility and generator power.

Restoration to Utility: The system re-monitors the utility source until stable conditions are confirmed. It then reverses the transfer process to restore the load to the primary power source safely.

Technical Specifications

Part Number (MPN) A075F146
Manufacturer Cummins
Product Type Automatic Transfer Switch (NSE)
Rated Amperage 600A
Voltage Rating 240V AC
Phase Configuration Single Phase (1Ph)
Number of Poles 3-Pole
Enclosure Type Non-Service Entrance (NSE)
Enclosure Rating NEMA 3R (Outdoor)
Control System PowerCommand 40-11 Microprocessor
Display Type LCD Digital Display with Soft Switches
Transition Type Open Transition (Break-Before-Make)
Contact Material High-Pressure Silver Alloy
Actuator Mechanism Bi-Directional Linear Motor Actuator
Frequency 60 Hz
Application Level Commercial / Large Residential / Agricultural
Installation Requirement Certified Cummins Technician or Licensed Electrician
Dimensions 54.0"H x 25.5"W x 18.0"D
Weight 335 lbs

Certifications & Compliance

Certifications: UL 1008 Listed, CSA 282 Compliant, NEC 700-702 Compliant
Inverter Compatibility: Approved for Cummins OTEC-series commercial standby generators
Environmental: Complies with NFPA 70, NFPA 99, NFPA 110, IEEE 446, NEMA ICS 10
Warranty: Genuine Cummins OEM component with 1-Year Limited Warranty

Documentation

S-1639 OTEC Spec C

● Available | Contact us for lead time and pricing
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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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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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