Westinghouse 1875275A Electromechanical Overcurrent Relay

The Westinghouse 1875275A CO-8 electromechanical overcurrent relay delivers inverse-time protection for feeders, transformers, motors, generators, and power distribution circuits, initiating breaker trips to prevent damage from overloads and faults. This CT-operated unit accepts current transformer inputs and offers dual current ranges of 0.2–2 A and 4–12 A, with a 3-position target and trip indicator to clearly show operating status. Built on an induction-disc electromechanical design, it is panel-mounted for protective relay assemblies in utility substations, switchgear, and industrial power systems, supporting circuit-breaker trip initiation across feeders, transformers, motors, generators, and distribution circuits.