| 摘要 |
PROBLEM TO BE SOLVED: To provide a switching arrangement capable of preventing a switch element from turning ON/OFF due to a counter electromotive force which is generated on a load when an electric power supply to the load is shut down, and a load control system using the same.SOLUTION: A contact point 111 of a relay 11 is electrically connected in an electrical circuit which connects an AC power source 200 and a ventilator load 400 thereacross. A bidirectional thyristor 12 is electrically connected in an electrical circuit which connects the AC power source 200 and an illumination load 300. A surge absorber circuit 60 is connected across the AC power source 200 and the illumination load 300 in parallel to the bidirectional thyristor 12 to reduce a surge voltage which is applied to the bidirectional thyristor 12.SELECTED DRAWING: Figure 1 |
