ABB OT45E3 Disconnect Switch

OT45E3 is ABB's 3‑pole, non‑fusible disconnect switch in the OT45 family, rated for 60 A at 600 VAC. This device is used to safely isolate circuits for maintenance or service within electrical distribution or control‑panel assemblies. It is designed for flexible installation with mounting options including base mounting and DIN‑rail mounting, allowing integration into a wide range of enclosures. The unit carries UL General Purpose rating of 60 A and an IEC AC21 rating of 63 A, indicating compatibility with both North American and IEC standards for general‑purpose disconnects. As a three‑pole device, OT45E3 provides independent disconnection of all three supply lines, helping ensure complete isolation of multi‑phase circuits in 600 VAC systems. It is part of ABB's broader OT disconnect switch lineup, enabling modular configurations with other OT components for scalable switchgear in industrial settings. Typical applications include service disconnects in motor control circuits, electrical distribution panels, automation cabinets, and other equipment that requires quick, reliable isolation of energized circuits without altering wiring layouts. The OT45E3 is identified by the order code OT45E3 and reflects ABB's emphasis on robust, simple‑to‑use safety switches designed to meet general‑purpose isolation needs in commercial and industrial environments.