Patent ID: 6573814
Filing Date: 2003-06-03
Classification: H01H,H02H

Abstract:
An electromagnetic relay comprising:a case preventing a liquid from penetrating an interior of the case; an excitation coil, provided in the case, having first and second coil terminals which are respectively connected to a first end and a second end of the excitation coil, each coil terminal protruding outside the case, wherein one of the coil terminals functions as an earth side; and electrodes respectively connected to the coil terminals protruding from the case, wherein at least a portion of each electrode is exposed beyond an exterior of the case, and wherein a leakage resistance between the exposed portions of the electrodes is formed when the exterior of the case is at least wetted by a conductive liquid, the leakage resistance being connected in parallel with the excitation coil so as to cause a voltage across the excitation coil to fall below a minimum level required for operating the excitation coil.