Professional-Grade Power Protection for Commercial & Light Industrial Applications

NEW MODEL – Now featuring the advanced PowerCommand® 40-11 digital control for superior reliability and ease of use.

Smart, Simple, Dependable Standby Power

When the power goes out, your business can't afford downtime. The Cummins OTEC125 transfer switch delivers automatic, seamless power transfer between utility and generator sources—keeping your operations running without interruption.

Designed for emergency, legally required, and optional standby circuits, this 125-amp transfer switch combines proven reliability with modern digital control technology. Perfect for commercial buildings, light industrial facilities, and mission-critical applications.

PowerCommand® 40-11 Control – Intelligence Built In

At the heart of the OTEC125 is the fully featured PowerCommand® 40-11 microprocessor control. This intuitive system puts complete monitoring and management at your fingertips:

• Crystal-clear LCD display shows real-time system status at a glance
• Tactile soft-switch interface makes navigation effortless
• Software-enabled settings ensure precision setup and easy adjustments
• Comprehensive monitoring of both utility and generator sources

No guesswork. No complicated programming. Just intelligent control that works.

Engineered for Reliability

Advanced Linear Motor Actuator Technology Unlike traditional transfer switches with complex gears and linkages, the OTEC125 uses a bi-directional linear motor actuator. This means virtually friction-free operation, constant transfer force, and straight-line action—resulting in longer life and superior reliability.

Dual Safety Interlocking Both mechanical and electrical interlocks prevent dangerous source-to-source connections, ensuring safe operation under all conditions.

Manual Override Capability Shielded terminations, manual operating handles, and over-center contact mechanisms allow for safe manual operation during de-energized conditions—giving you control when you need it most.

Built for Real-World Service

Effortless Maintenance Access

• Plug connections for quick disconnects
• Door-mounted controls for easy viewing and adjustment
• Spacious interior layout for comfortable servicing
• Compatible terminal markings that match industry standards

Every detail designed to save your technician time and reduce service costs.

Technical Specifications

• Voltage: 120/208V, 3-Phase
• Current Rating: 125 Amps
• Enclosure: NEMA1, Non-Service Rated
• Control: PowerCommand® 40-11
• Series: OTEC (Spec C)
• Dimensions: 27" H × 20.5" W × 12" D
• Weight: 148 lbs