| 摘要 |
PURPOSE:To trip a display part so accuracy without being subject to the influence of foreign substrate by having a trip display of a trip display unit situated in a handle hole when a handle is on, and moving it to the inside of a case from the handle hole as interlocking with the tripping. CONSTITUTION:When a trip device 1 is not tripped, a movable shaft 16 comes into a state of being fixed, and a movable contact 2 operates for opening or closing by operation of a handle 3 with the movable shaft as a fulcrum, while a traveling contact 17 is made contact or separate to or from a fixed contact 18, and each state of on or off is kept up by a bistable type electromagnet 4. And, when an actuating signal is inputted into a coil 23 of this electromagnet 4, a plunger 22 operates so that the handle 3 is operable. Interlocking with on-off operation of a handle 6, a trip display piece 32 is rotated. When a latch link 15 is rotated clockwise in a trip state, the trip display piece 32 is rotated with a fixed shaft 20 as the center, whereby a display part 33 is moved to the inside of a case 5 from a handle hole 26, and a display of 'TRIP' comes out on a display surface 3a of the handle 3. Supporting that foreign substances enter the handle hole 26, they are merely placed on a surface of the display piece 32. |
