Motor drive for power switch or circuit breaker - has motor coupled to gear with ratchet to operate slide unit coupled to switching stage actuator.

摘要

The motor drive has a box-shaped housing with manual lever (4) operation and an electric motor (8). The motor drives a gear transmission that has a ratchet mechanism (11). The lever and ratchet mechanism have pin couplings (25) with a slide element (14) located in the base. The slide element is constrained to move linearly with limit switches defining the range of movement. The slide unit operates the switching stage lever. ADVANTAGE - Simple construction. Reliable operation.