Team Wieland Truck & Trailer

Information

2024 Cummins OTEC Transfer Switch OTECB

The OTEC automatic transfer switch series provides the basic features needed for primary source and generator set monitoring, generator set starting, and load transfer functions for emergency standby power applications.

The OTEC transfer switches monitor both power sources, signal generator set to start, automatically transfer power, and return the load to the primary power source once a stable utility is available. The fully integrated controller is designed for practical functionality, with LED indicators and digital pushbuttons for ease of operator use.

Features may include:

• Voltage rating - Up to 600 V AC, 50 or 60 Hz.

• Arc interruption - Multiple leaf arc chutes provide dependable arc interruption

• Neutral bar - A full current-rated neutral bar with lugs is standard on enclosed 3-pole transfer switches

• Auxiliary contacts - Two isolated contacts (one for each source) indicating switch position are provided for customer use. Contacts are normally open, and close to indicate connection to the source. Wired to terminal block for easy access. Rated at 10 A Continuous and 250 V AC maximum.

• Operating temperature - -22 °F (-30 °C) to 140 °F (60 °C)

• Storage temperature - -40 °F (-40 °C) to 140 °F (60 °C)

• Humidity - Up to 95 % relative, non-condensing

• Altitude - Up to 10,000 ft (3,000 m) without derating

• Surge withstand ratings - Voltage surge performance and testing in compliance with the requirements of IEEE C62.41 (Category B3) and IEEE C62.45

• Total transfer time (source-to-source) - Will not exceed 6 cycles at 60 Hz with normal voltage applied to the actuator and without programmed transition enabled.

• Manual operation - Transfer switch mechanisms are equipped with means to manually transfer. All sources must be de-energized before manual operation is attempted.