MODEL: OTEC400 (SPEC C) - A075F129 | 277/480V 3-PHASE | NON-SERVICE RATED | NEMA1 ENCLOSURE
Cummins 400A OTEC Series Transfer Switch - Non-Service Rated
Expected Availability: This item has a 10-12 week lead time
Product Overview
The Cummins 400A OTEC Series Transfer Switch represents the latest advancement in automatic transfer switch technology. This newly updated Spec C model features the advanced PowerCommand 40-11 control system, delivering reliable emergency standby power for commercial and light industrial applications.
Key Specifications:
- Amperage Rating: 400A
- Voltage: 277/480V, 3-Phase
- Service Rating: Non-Service Rated
- Enclosure: NEMA 1
- Control System: PowerCommand 40-11
Spec Sheet - OTEC Series Switches- Spec C
Ideal Applications
This transfer switch is designed for emergency, legally required, and optional standby circuits in:
- Commercial buildings
- Light industrial facilities
- Applications requiring automatic backup power switching
The OTEC series provides essential monitoring and control functions including primary source monitoring, generator set starting, and seamless load transfer during power outages.
PowerCommand 40-11 Control System
At the heart of this transfer switch is the state-of-the-art PowerCommand 40-11 control—a microprocessor-based system featuring an intuitive LCD digital display and easy-to-use tactile soft-switches for straightforward operation and menu navigation. This comprehensive control system accommodates a wide variety of automatic transfer switch applications with software-enabled settings for precise configuration.
Outstanding Features
Simplified Maintenance & Service Quick plug connections, door-mounted controls, generous access space, and clearly marked terminals make servicing and troubleshooting straightforward and efficient.
Advanced Transfer Mechanism The bi-directional linear motor actuator delivers smooth, friction-free operation with constant force and straight-line switching action—no complicated gears or linkages to wear out or maintain.
Safe Manual Operation Equipped with manual operating handles and an over-center contact mechanism, allowing safe manual switching when power is disconnected. Shielded terminations provide added protection during maintenance.
Enhanced Safety Interlocking Dual mechanical and electrical interlocking systems prevent dangerous source-to-source connections through both power and control circuits, ensuring safe operation at all times.
Physical Specifications
- Dimensions: 54.0" H × 25.5" W × 18.0" D
- Weight: 335 lbs
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.