

MODEL: OTEC225 (SPEC C) - A075N276 | 120/240V SINGLE-PHASE | SERVICE ENTRANCE RATED | NEMA3R ENCLOSURE
Cummins OTEC Transfer Switch - 225A Spec C with PowerCommand 40-11 Control
Expected Availability: Current lead time is 10-12 weeks
Product Overview
This professional-grade automatic transfer switch from Cummins delivers reliable emergency backup power for commercial and light industrial facilities. The OTEC series monitors your primary power source and generator, automatically starting your generator and transferring your electrical load when needed.
Technical Specifications
- Amperage Rating: 225A
- Voltage: 120/240V Single-Phase
- Control System: PowerCommand 40-11 microprocessor control
- Enclosure: NEMA 3R (weather-resistant for outdoor or indoor use)
- Service Rating: Non-Service Rated
- Dimensions: 42.5" H × 30.5" W × 16.0" D
- Weight: 315 lbs
Spec Sheet - OTEC Series Switches- Spec C
Approved Applications
This transfer switch is suitable for emergency, legally required, and optional standby power systems in commercial and light industrial settings.
Key Features
Intuitive Control System
The advanced PowerCommand 40-11 control features a clear LCD digital display and user-friendly soft-touch switches for easy operation and menu navigation. All settings and adjustments are software-enabled for precise configuration.
Service-Friendly Design
Convenient plug connections, door-mounted controls, spacious interior access, and clearly marked terminals make installation and maintenance straightforward.
Advanced Transfer Mechanism
The bi-directional linear motor actuator provides smooth, friction-free operation with consistent force delivery. No complex gears or linkage means fewer parts to maintain and more reliable performance.
Manual Operation Capability
Equipped with manual operating handles and over-center contact mechanisms for safe manual operation during de-energized conditions.
Built-In Safety Protection
Dual mechanical and electrical interlocking systems prevent accidental connection between power sources, protecting your equipment and facility.
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.