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Technical Bulletins

Technical Bulletin #1A, Retrofitting Ground Fault Trip Units on 4-wire Double-Ended Substation Main & Tie Breakers

About us

Utility Relay Company is a leading manufacturer of microcontroller based, true RMS solid state trip units for AC and DC power circuit breakers. Learn More

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Contact details

10100 Queens Way,
Chagrin Falls, OH 44023
T: (888) 289-2864
F: (440) 708-1177
E: urcsales@utilityrelay.com

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