ABB is a Swiss electrical and automation manufacturer with a substantial presence across industrial, commercial, and infrastructure markets. The company operates across electrification and automation disciplines, supplying equipment used in everything from power distribution to process control.
In the electrical trade, ABB is well regarded for its switching and protection products. Their isolators and transfer switches are specified across a broad range of demanding environments — industrial panels, commercial distribution boards, data centres, hospitals, power plants, and water pumping stations — where reliable isolation under load is a design requirement rather than an afterthought.
ABB’s isolator ranges carry IEC 60947-3 certification and are built around features such as finger-safe terminals and arc chute construction, making them suitable for load switching as well as isolation duties. The OT series covers general AC applications from 16 A upward, while the OTDC series addresses DC circuit requirements.
ABB isolators span the OT series and OTDC series. The OT range runs from 40 A to 6300 A in single-pole to four-pole configurations, suitable for AC load switching and isolation in panels and distribution boards. The OTDC series covers DC applications across a comparable pole range. All are compliant with IEC 60947-3 and incorporate finger-safe terminals and arc chute design.
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