ABB OT40F3 Overload Relay

ABB OT40F3 is a 3‑pole switch‑disconnector rated for 40 A, designed to isolate electrical circuits in control panels and motor applications, with common configurations supporting up to 600 V AC. The front‑operated version provides straightforward, hands‑on isolation in cabinet environments, and the terminal area carries an IP20 protection rating for cable entry. A DIN‑rail mounting variant exists within the OT40F3 family (catalog number 1SCA104902R1001), offering a compact installation option alongside panel‑mount versions. As part of ABB’s OT switch family, OT40F3 delivers reliable disconnection in electrical distribution circuits and machinery, enabling safe maintenance and clear circuit isolation.