MODEL: OTEC125 (SPEC C) - A075F126 | 277/480V 3-Phase | NON-SERVICE RATED | NEMA3R ENCLOSURE
Cummins OTEC125A - Commercial-Grade Power Protection with Advanced Control Technology
Expected Availability: Call
Why Choose the Cummins OTEC125A?
The Cummins OTEC125A Spec C represents the latest evolution in automatic transfer switch technology. Engineered for commercial and light industrial facilities, this 125-amp transfer switch delivers reliable emergency power switching when you need it most. Featuring the advanced PowerCommand® 40-11 control system, it provides intelligent power management in a rugged NEMA 3R outdoor-rated enclosure.
Perfect for: Emergency systems, legally required standby circuits, and optional standby applications in commercial buildings, light industrial facilities, and critical infrastructure.
Advanced PowerCommand® 40-11 Control
The brain of your backup power system. This microprocessor-based control features:
- Intuitive LCD Display – Clear digital readout with easy-to-read system status
- Tactile Soft-Switch Interface – Navigate menus and adjust settings with precision
- Software-Enabled Configuration – All features, settings, and adjustments are digitally programmed for accuracy and repeatability
- Comprehensive Monitoring – Real-time tracking of both utility and generator power sources
Built for Reliability and Easy Maintenance
Friction-Free Linear Motor Actuator
Unlike traditional transfer switches with complex gears and linkages, the OTEC125A uses a bi-directional linear motor actuator that delivers smooth, consistent switching action with minimal wear.
Service-Friendly Design
- Plug-style connections for quick installation
- Door-mounted controls for easy access
- Clearly marked terminals reduce installation time
- Generous interior space simplifies maintenance
Safe Manual Override
When manual operation is required, the shielded manual operating handles and over-center contact mechanism allow safe switching under de-energized conditions.
Dual Interlocking Protection
Both mechanical and electrical interlocks prevent dangerous source-to-source connections, protecting your equipment and ensuring code compliance.
Technical Specifications
- Voltage: 277/480V, 3-Phase
- Current Rating: 125 Amperes
- Enclosure: NEMA3R (outdoor rated, weather-resistant)
- Service Rating: Non-Service Rated
- Control: PowerCommand® 40-11microprocessor
- Series: OTEC Spec C (Latest Generation)
- Dimensions: 34" H × 26.5" W × 12.5" D
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Weight: 229 lbs
Applications
✓ Commercial buildings and offices
✓ Light industrial facilities
✓ Healthcare clinics
✓ Retail locations
✓ Data centers and IT facilities
✓ Municipal buildings
Codes and Standards
- UL - UL 1008 Listed with UL 50E Type Cabinets and UL Listed CU-AL terminals.
- NEMA - Compliance with NEMA ICS 10.
- CSA - Certified to CSA 22.2.
- IEEE - Compliance with IEEE 446 for Emergency and Standby Power Applications.
- NFPA - Compliance with NFPA 70, 99, and 110 (Level 1).
- NEC - Suitable for use in Emergency, Legally Required Standby and Critical Power Systems per NEC 700, 701, 702, and 708.
- EMC - Meets Electromagnetic Compatibility (EMC) standards for Generic Immunity and Emissions Standards for Industrial environment.
- IBC - Certified to IBC Seismic 2021.
Ready to Protect Your Facility?
The Cummins OTEC125A Spec C combines proven transfer switch technology with modern digital control for dependable emergency power management.
📞 CALL BUCKEYE POWER SYSTEMS TODAY FOR SHIPPING INFO AND AVAILABILITY
Our team can help you specify the right transfer switch for your application.