MODEL: OTEC400 (SPEC C) - A075F132 | 277/480V 3-PHASE | NON-SERVICE RATED | NEMA3R ENCLOSURE
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Cummins 400A OTEC Series Transfer Switch
Product Overview
The Cummins OTEC Series transfer switch is designed to deliver reliable emergency standby power for commercial and light industrial facilities. This 400-amp transfer switch monitors your primary power source and generator, automatically starting your generator and transferring loads when needed. It's approved for emergency, legally required, and optional standby circuits.
This updated Spec C model features the advanced PowerCommand 40-11 control system, offering comprehensive functionality through an intuitive LCD display and easy-to-use soft-touch controls.
Key Features
PowerCommand 40-11 Control System
The microprocessor-based control center features an LCD digital display with tactile soft-switches, making operation and navigation straightforward. All settings and adjustments are software-enabled for precise configuration and simple setup.
Advanced Transfer Mechanism
The bi-directional linear motor actuator delivers smooth, friction-free operation with consistent force distribution. Unlike traditional systems with complex gears and linkages, this straight-line design provides reliable, long-lasting performance.
Service-Friendly Design
Maintenance is simplified with plug-style connections, door-mounted controls, clearly marked terminals, and generous access space for technicians.
Manual Override Capability
Equipped with manual operating handles and shielded termination points, allowing safe manual operation when power is disconnected.
Safety Interlocking
Dual mechanical and electrical interlocks prevent dangerous source-to-source connections, ensuring your primary power and generator never connect simultaneously through either power or control wiring.
Specifications
- Dimensions: 59.0" H × 27.5" W × 16.5" D
- Weight: 425 lbs
- Enclosure: NEMA3R (weather-resistant for outdoor or indoor use)
- Rating: Non-Service Rated
Spec Sheet - OTEC Series Switches- Spec C
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.
Applications
Ideal for commercial buildings, light industrial facilities, healthcare facilities, and any application requiring automatic backup power transfer during outages.