CIRCUIT BREAKER AND DISTRIBUTION BOARD PROVIDED WITH THE CIRCUIT BREAKER

摘要

PROBLEM TO BE SOLVED: To provide circuit breakers which can easily cover conductive bars from the front sides only by simply arranging the circuit breakers in parallel in both sides of the conductive bars in the width direction and to provide a distribution board comprising these circuit breakers. SOLUTION: Each branch breaker 1 (a circuit breaker) comprises a breaker main body 2, connection terminal parts, and a protective part 9. Each of the connection terminal parts is provided with a connection terminal 6 so shaped into an Ω-shaped blade receiving form and connected with a conductive bar 20a... by inserting the bar from the width direction. The protective part 9 comprises a bar housing recessed part to separate and house the conductive bars 20a... and the connection terminal parts are housed in the bar housing recessed part. Consequently, only by inserting connection terminals 6 of branch breakers 1 into the conductive bars 20a... in the width direction and connecting the terminals 6 with the conductive bars 20a..., the conductive bars 20a... can easily be covered from the front side by the protective part 9.