Found the same price or less? Just ask & we'll beat it.
Power outages rarely happen at a convenient time. Whether you're protecting your home, keeping an RV-powered property operational, supporting an off-grid installation, or maintaining power for a mobile business, dependable automatic power transfer is essential. The Cummins OTEC225 Automatic Transfer Switch | 225A 240V Single-Phase | NEMA 3R | Service Entrance is engineered to automatically detect utility power interruptions and transfer your electrical load to a compatible generator, helping minimize downtime and protect critical equipment.
Built by Cummins, one of the most trusted names in power generation, this genuine transfer switch combines advanced monitoring, intelligent controls, and rugged outdoor durability into one dependable solution. Featuring a 225A capacity, 240V single-phase operation, service entrance rating, NEMA 3R enclosure, PowerCommand 40 controller, open-transition switching, and configurable exerciser scheduling, it is designed for residential and light commercial backup power systems where dependable automatic operation matters every day.
Unlike manual transfer switches that require someone to be present during an outage, this automatic transfer switch continuously monitors utility power. When power fails, it automatically signals your compatible generator to start and transfers connected loads safely. Once utility power returns, it automatically transfers back and shuts the generator down after an appropriate cool-down period. For homeowners, RV property owners, off-grid enthusiasts, and mobile businesses, that means greater peace of mind and fewer interruptions when unexpected outages occur.
Power outages rarely happen at a convenient time. Whether you're protecting your home, keeping an RV-powered property operational, supporting an off-grid installation, or maintaining power for a mobile business, dependable automatic power transfer is essential. The Cummins OTEC225 Automatic Transfer Switch | 225A 240V Single-Phase | NEMA 3R | Service Entrance is engineered to automatically detect utility power interruptions and transfer your electrical load to a compatible generator, helping minimize downtime and protect critical equipment.
Built by Cummins, one of the most trusted names in power generation, this genuine transfer switch combines advanced monitoring, intelligent controls, and rugged outdoor durability into one dependable solution. Featuring a 225A capacity, 240V single-phase operation, service entrance rating, NEMA 3R enclosure, PowerCommand 40 controller, open-transition switching, and configurable exerciser scheduling, it is designed for residential and light commercial backup power systems where dependable automatic operation matters every day.
Unlike manual transfer switches that require someone to be present during an outage, this automatic transfer switch continuously monitors utility power. When power fails, it automatically signals your compatible generator to start and transfers connected loads safely. Once utility power returns, it automatically transfers back and shuts the generator down after an appropriate cool-down period.
For homeowners, RV property owners, off-grid enthusiasts, and mobile businesses, that means greater peace of mind and fewer interruptions when unexpected outages occur.
The transfer switch constantly watches utility power. When power fails, it starts the compatible generator and transfers electrical loads automatically. When utility power returns, it safely switches back, helping reduce downtime while keeping essential equipment running with little user involvement.
Its NEMA 3R weather-resistant enclosure helps protect internal components from rain and outdoor conditions. This durable design makes it ideal for homes, businesses, workshops, and other outdoor standby generator installations where reliable protection is important year-round.
The service entrance rating allows this transfer switch to serve as the main disconnect where local electrical codes permit. This helps installers create organized backup power systems while reducing equipment complexity for many residential and light commercial applications.
The Cummins PowerCommand 40 controller continuously monitors utility power, manages generator startup, controls transfer timing, and safely restores utility service. It delivers dependable automatic operation while providing useful information for maintenance and system monitoring through its display.
The built-in LCD screen provides clear operating information, system status, and controller settings. Owners and installers can quickly review important system data, helping simplify maintenance, troubleshooting, and routine inspections without unnecessary guesswork.
Automatic exercise scheduling regularly runs your compatible generator to help maintain readiness. Routine testing verifies proper operation before emergencies happen, giving homeowners and business owners greater confidence when backup power is needed most.
Built within the UL 1008 listed Cummins OTEC family, this transfer switch meets recognized safety standards while providing dependable long-term performance. It offers a trusted solution for protecting homes, businesses, and valuable electrical equipment during power outages.
Cummins provides a limited warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
Cummins OTEC225 Automatic Transfer Switch | 225A 240V Single-Phase | NEMA 3R | Service Entrance Specifications |
|
|---|---|
| Product Name | Cummins OTEC225 Automatic Transfer Switch |
| Manufacturer | Cummins |
| Manufacturer Part Number | A075N276 |
| Model | OTEC225 |
| Product Type | Automatic Transfer Switch |
| Transfer Type | Open Transition |
| Amperage Rating | 225A |
| Voltage | 240V |
| Phase | Single-Phase |
| Poles | 3-Pole |
| Enclosure | NEMA 3R |
| Service Entrance Rated | Yes |
| Controller | Cummins PowerCommand 40 |
| Display | LCD Display |
| Exerciser | Configurable Automatic Exerciser Schedule |
| Source Monitoring | Automatic |
| Frequency | 50/60 Hz Family |
| Maximum Family Voltage | Up to 600 VAC |
| Family Current Range | 40A–1200A |
| Certification | UL 1008 Listed Family |
| Installation | Professional installation recommended |
| Compatibility | Verify generator model, electrical configuration, and local code requirements before ordering |
Yes! Outbound Power is an Authorized Dealer for every single brand and product on our store.
Shipping times vary depending on your location and the product or products ordered.
Order Processing Time
Most products are processed within 1-3 business days. If there is a delay in processing your order, we will alert you with as much information as possible about what to expect.
After order processing is complete, you will receive tracking information to monitor your order while it is in transit.
Order Shipping Time
Following processing, it may take between 3 and 8 days to arrive, depending on your location.
Please refer to the product page for your item and reference the estimated delivery time frame for more details.
Additionally, you can see the estimated delivery time frame during checkout and receive a tracking number once your order ships.
Everything on our store ships for free. Really!
Most items may be returned within 30 days of delivery. Please refer to our Returns & Exchanges policy to determine what items are eligible. Returns are not accepted beyond 30 days following delivery.
Everything sold on our website is brand-new.
No — we price BEAT! Please refer to our Price Beat Promise for full details.
placeholder
