Description

The ABB OT25FT3 is a 3-pole, 25 A through-door rotary switch disconnector designed for DIN rail mounting in distribution boards and control panels where a front-accessible isolation switch is required. As part of ABB’s OT series of rotary disconnectors, the OT25FT3 provides a safe, lockable means of isolating three-phase supplies to downstream equipment without opening the panel enclosure, making it suitable for distribution boards, motor control panels, and industrial switchboards where operator safety and supply isolation are primary requirements.

The OT25FT3 meets the isolation requirements of IEC 60947-3 and is suitable for use as a main isolator or branch circuit disconnector in three-phase low-voltage electrical distribution systems. Its through-door operating handle mechanism enables operation from outside the panel, contributing to operator safety by avoiding the need to open an energised enclosure. The device can be padlocked in the off position to support lockout/tagout (LOTO) safety procedures, which are required during maintenance operations on downstream equipment.

Compatible with ABB’s OXP busbar series, the OT25FT3 can be connected directly to ABB’s busbar systems within distribution boards, supporting efficient and compact panel construction. It is widely used in industrial motor control panels, distribution boards, agricultural electrical installations, and light commercial switchboard applications where a reliable and accessible manual isolation device is required. Panel builders, electrical contractors, and engineers working on distribution systems will find the OT25FT3 a robust and standards-compliant choice for branch circuit isolation in three-phase applications up to 25 A.