| 摘要 |
PURPOSE:To mount a circuit breaker in a narrow case appropriately onto a support rail or a support fitting with a pawl by combining a telescopic pull top with a slide type connecting top to be latched to the rail. CONSTITUTION:A slide type connecting top 4 corresponding to a support rail and a groove 3c corresponding to a support fitting with a pawl are provided at the same position in a vertical alignment in a case 3 of a circuit breaker 2. A pull top 6 is assembled with the top 4. The top 6 has an L-shaped bent stopper at its rear end, and an insert hole in which an operating jig such as a screwdriver, etc., is inserted and which is opened at its front end, and is engaged with a guide groove formed on the top 4 to be so mounted as to be longitudinally telescopically. Thus, the breaker 2 having a small width of a case like a unipolar circuit breaker can be mounted at the rail or the fitting without trouble. |
