ABB OT160G30 Thermal Overload Relay For Three Phase Motors

ABB OT160G30 is a three‑pole switch‑disconnector from ABB’s OT160G family, rated for up to 160 A to isolate three‑phase motors in low‑voltage control panels. The OT160G30 variant carries a conventional free‑air thermal current (I_th) rating of 160 A and is specified for operation up to 690 V AC, with a 3‑pole configuration and an order code of 1SCA138207R1001. Weighing about 1.2 kg, this model sits in ABB’s range of motor‑protection devices that includes other current ratings (100 A and 125 A) to fit different load requirements. Typical applications include isolation of three‑phase motors in manufacturing lines, pumps, conveyors, and HVAC equipment where a simple, code‑clear disconnect is required for safe maintenance. The OT160G30 is designed to integrate into ABB’s control catalogs and motor‑protection ecosystems, providing a non‑fused disconnect option alongside contactors and overload relays for complete motor‑start protection.