公开(公告)号：US4037184A

公开(公告)日：1977-07-19

申请号：US675261

申请日：1976-04-09

申请人： Francis W. Kempisty, Jr. ,  John L. Lundgren

发明人： Francis W. Kempisty, Jr. ,  John L. Lundgren

IPC分类号： H01H71/12 ,  H01H71/74 ,  H01H83/00 ,  H01H33/48

CPC分类号： H01H71/126 ,  H01H71/7409

摘要： A molded case multi-pole circuit breaker is provided with a solid state trip unit having removable and replaceable rating plug. A mechanical interlock trips the circuit breaker when a cover portion thereof is opened. This cover portion must be opened to gain access to the rating plug. A mechanical lockout device is actuated when rating plug is removed to maintain the breaker tripped and to prevent resetting thereof until a rating plug is reinserted in the trip unit.

摘要翻译： 模制盒式多极断路器具有固态脱扣器，其具有可拆卸和可更换的额定插头。 当断路器的盖部分打开时，机械联锁器跳闸。 必须打开此盖部分以访问额定值插头。 当额定插头被移除以维持断路器跳闸并且防止其重置直到额定值插头重新插入到跳闸单元中时，机械锁定装置被致动。