MODEL: OTEC400 (SPEC C) - A075F130 | 277/480V 3-PHASE | NON-SERVICE RATED | NEMA1 ENCLOSURE
Cummins 400A OTEC Series Automatic Transfer Switch - Non-Service Rated
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Upgrade your emergency standby power system with the latest Cummins OTEC transfer switch featuring the advanced PowerCommand 40-11 control. This robust 400-amp automatic transfer switch is designed for commercial and light industrial applications where reliable backup power is essential.
Product Overview
This Spec C transfer switch operates at 120/208V 3-Phase and comes in a weather-resistant NEMA3R enclosure. The OTEC series delivers all the essential functions you need: monitoring both your primary power source and generator, automatic generator starting, and seamless load transfer during power outages. It's suitable for emergency, legally required, and optional standby circuits.
PowerCommand 40-11 Control System
At the heart of this transfer switch is the sophisticated PowerCommand 40-11 microprocessor-based control. The intuitive LCD digital display and tactile soft-switches make operation straightforward and menu navigation effortless. All settings and adjustments are software-enabled, ensuring precise configuration and easy setup.
Key Features
Simplified Maintenance - Service technicians will appreciate the plug-style connections, door-mounted controls, generous access space, and clearly marked terminals that make installation and maintenance quick and efficient.
Advanced Transfer Mechanism - The innovative bi-directional linear motor actuator eliminates complex gears and linkage systems. This design provides smooth, friction-free operation with constant force and reliable straight-line switching action.
Manual Override Capability - When needed, manual operating handles allow you to operate the switch under de-energized conditions. The over-center contact mechanisms and shielded termination ensure safe manual operation.
Safety Interlocking - Both mechanical and electrical interlocking systems prevent dangerous source-to-source connections, protecting your equipment and personnel whether through power circuits or control wiring.
Specifications
- Dimensions: 59.0" H x 27.5" W x 16.5" D
- Weight: 425 lbs
- Current Rating: 400 Amps
- Voltage: 120/208V 3-Phase
- Enclosure: NEMA3R (weather-resistant)
- Service 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.
This transfer switch represents Cummins' commitment to quality and innovation in backup power solutions, providing the reliability your facility needs when the unexpected happens.