| 摘要 |
PROBLEM TO BE SOLVED: To provide a detecting switch capable of detecting a plurality of ranges or positions by using a plurality of three-terminal sensors, and having less leakage of electric current. SOLUTION: Two of a first three-terminal sensor M11 and a second three-terminal sensor M12 are mounted as the three-terminal sensors, a detection range of the first three-terminal sensor includes a detection range of the second three-terminal sensor, two connection lines 21a, 21b for connecting a power source and a load are mounted at the external drawn out to the external of a casing 11, a power source terminal A and a grounding terminal G of the first three-terminal sensor are connected to be operable at all times by the voltage applied to two connection lines, and a power source terminal A and a grounding terminal G of the second three-terminal sensor are connected to be operable, when an output terminal T of the first three-terminal sensor is switched on. COPYRIGHT: (C)2005,JPO&NCIPI
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