| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring duct connection device for informing a power supply cut-off state.SOLUTION: A wiring duct connection device 1 has contact pieces 21 to 23 at the primary side, a contact device 52, a controller 50 and a light emission unit 7. The contact pieces 21 to 23 at the primary side are connected to conductors of a wiring duct. The contact device 52 is connected between the contact pieces 21 to 23 and a circuit at the secondary side. The controller 50 controls the contact device 52 to open when current values of current flowing in the contact pieces 21 to 23 exceed a predetermined value. By turning on LED 71, the light emission unit 7 informs the opening state of the contact device 52.SELECTED DRAWING: Figure 1 |
