CIRCUIT BREAKER FOR ASCENT/DESCENT DOUBLE BUS

摘要

PURPOSE:To provide circuit breakers designed to switch ascent/descent double buses easily and securely. CONSTITUTION:A plate 29 is provided to prevent handle insertion into a breaker lift operation shaft 32. The plate 29 is locked to prevent handle insertion with a locking bar 22 and interlock plate 21 when a breaker is set to 'connection side' and with a regulating plate 28 when the breaker is set to other than the designated positions in the upper and lower portions.