

MODEL: OTEC125 (SPEC B) - A066Y093 | 277/480V 3-Phase | NON-SERVICE RATED | NEMA1 ENCLOSURE
Cummins OTEC125 Transfer Switch - Industrial-Grade Power Protection
Reliable Emergency Power When You Need It Most
Protect your critical operations with the Cummins OTEC125 automatic transfer switch. Engineered for commercial and light industrial applications, this non-service rated transfer switch seamlessly monitors your power sources, controls generator startup, and executes smooth load transfers during outages—ensuring your business stays running.
PowerCommand® 40 Control Technology
At the heart of this system is the intuitive PowerCommand® 40-01 microprocessor control, featuring an LCD digital display and user-friendly soft-switches that make operation and configuration straightforward. All settings and adjustments are software-enabled for precision and ease of setup.
Key Advantages
Simple Maintenance & Service
Plug-in connections, door-mounted controls, generous access space, and clearly marked terminals make servicing quick and hassle-free.
Advanced Transfer Mechanism
The bi-directional linear motor actuator delivers smooth, friction-free operation with constant force and straight-line action—no complicated gears or linkages to maintain.
Safe Manual Operation
Manual operating handles and shielded termination enable safe operation under de-energized conditions when needed.
Dual Interlocking Protection
Both mechanical and electrical interlocks prevent dangerous source-to-source connections, protecting your equipment and personnel.
Full-Featured Control
Microprocessor-based monitoring and control provide comprehensive oversight of primary source and generator set status, with all features accessible through the software interface.
Specifications
- Current Rating: 125 Amperes
- Voltage: 277/480V 3-Phase
- Enclosure: NEMA1, Non-Service Rated
- Dimensions: 27" H × 20.5" W × 12" D
- Weight: 95 lbs
- Applications: Emergency, legally required, and optional standby circuits
Spec Sheet - OTEC Series Switches
Perfect For
Commercial facilities, light industrial operations, data centers, healthcare facilities, and any application requiring dependable automatic power transfer for emergency standby systems.
Need help sizing your transfer switch or have questions about installation? Contact our power systems experts today—we're here to ensure you get the right solution for your application.