Cummins OTEC225 Spec B 225 Amp 277/480V 3 Phase NEMA 3R Transfer Switch - A066Y110

MODEL: OTEC225 (SPEC B) - A066Y110 | 277/480V 3-Phase | NON-SERVICE RATED | NEMA 3R ENCLOSURE

Overview

The Cummins OTEC Series 225-amp transfer switch delivers reliable automatic power transfer for emergency standby applications. This non-service entrance rated switch monitors both your primary power source and backup generator, automatically starting your generator and transferring your electrical load when needed.

Ideal for commercial and light industrial facilities, this transfer switch meets code requirements for emergency, legally required, and optional standby circuits. The integrated PowerCommand® 40 control system provides comprehensive monitoring and management capabilities in an easy-to-use package.

PowerCommand® 40-01 Control

The heart of this transfer switch is the advanced PowerCommand® 40-01 microprocessor-based control. Featuring a clear LCD digital display and intuitive soft-touch switches, the control makes operation and setup straightforward. All features, settings, and adjustments are software-enabled, ensuring precise configuration and reliable performance.

Key Features

Simplified Maintenance & Access
Service technicians will appreciate the thoughtful design elements that make maintenance easier. Plug-style connections, door-mounted controls, generous access space, and clearly marked terminals all contribute to faster service calls and reduced downtime.

Advanced Transfer Mechanism
The innovative bi-directional linear motor actuator sets this switch apart from traditional designs. By eliminating complex gears and linkages, it provides smooth, friction-free operation with consistent force throughout the transfer stroke. This modern approach enhances reliability and extends service life.

Manual Operation Capability
When needed, you can manually operate the switch under de-energized conditions using the built-in manual operating handles. The shielded terminations and over-center contact mechanisms ensure safe manual control.

Source Protection
Both mechanical and electrical interlocking systems prevent simultaneous connection to your utility and generator sources, protecting your equipment and ensuring code compliance.

Specifications

• Current Rating: 225 Amps
• Voltage: 277/480V, 3-Phase
• Enclosure: NEMA3R (weather-resistant for outdoor or indoor use)
• Dimensions: 42.5" H × 30.5" W × 16.0" D
• Weight: 225 lbs
• Rating Type: Non-Service Entrance

This transfer switch provides dependable automatic backup power protection for your critical electrical systems, combining proven Cummins engineering with modern control technology.