| 摘要 |
A molded case circuit breaker (10) has a rear joint surface portion (13), and a first electronic device has a front joint surface portion (21). It is possible to connect the molded case circuit breaker and the first electronic device with each other in the longitudinal direction with the rear joint surface portion and the front joint surface portion in contact with each other. The molded case circuit breaker has an electrically primary side connection terminal portion (30A) for connection to a wiring on the side of a power supply and an electrically secondary side first plug-in terminal portion (30) on the rear joint surface portion. The first electronic device has a first plug terminal portion (22) for connection to the first plug-in terminal portion on the front joint surface portion. The first electronic device has an rear joint surface portion on the side opposite to the front joint surface portion and a second plug-in terminal portion (30B) on the rear joint surface portion. The second plug-in terminal portion is provided at the same position as the first plug terminal portion (22) in terms of the height and the lateral direction. |
