| 摘要 |
PURPOSE:To attain ease of extension of a wall mount switch by connecting an operating section of the same constitution as a load on/off operating switch section in parallel with the switch section corresponding to a prescribed load as a control means of a load control relay. CONSTITUTION:In throwing the operating switch SW of the load on/off operation switch section 10 of an operation section 8 to the position of a terminal (a), i.e., the on position, the operation of a magnetic holding relay LR of a load control relay Ry1 is inverted to close its main contact MS and an auxiliary contact r1 is changed over from the terminal (a) to the terminal (b). The relay Ry1 holds the operating state so as to energize the load L1 connected to an AC power AC via the contact MS. Further, an operation display lamp La1 connected in parallel with the load L1 is lighted. In releasing the activation of the operation switch SW, the SW is restored to the neutral state and the effect is not given even when a scan circuit 2 is operated afterward. |
