Asea Brown Boveri OHB95L10 Operating Mechanism

ABB OHB95L10 is a pistol-handle operating accessory for ABB OHB-series molded case circuit breakers (MCCBs). The unit provides a 95 mm pistol grip for manual operation and features variable-depth mounting to fit a range of frame depths common to OHB MCCB installations. It supports NEMA 1/3R/4/4X/12 enclosure configurations, enabling use in diverse control panels and switchgear where a separate external handle is required for reliable manual actuation. As part of ABB's OHB accessory family, the OHB95L10 complements the external operating mechanism by offering a standardized, replaceable handle that can be swapped during maintenance or retrofits without changing the breaker assembly. The part is commonly stocked by major electrical distributors, including Mouser, Rexel, Newark, and Cooper Electric, underscoring its role as a standard spare for ABB MCCBs in industrial environments. The 95 mm pistol grip design yields a compact, hand-friendly interface suitable for hands-on switching in space-constrained panels while preserving compatibility with the OHB MCCB line across multiple NEMA configurations.