PURPOSE:To easily manufacture a relay having integrated type relay switch and mechanical switch by integrally providing a coil means and two opening and closing means. CONSTITUTION:Between two different power source lines 14, 15, a socket type relay 101 with a switch is inserted and connected. Two mechanical switches MS3, MS4 are used. The common terminal of the switch MS3 is connected to the power source line 14. One terminal of an external mechanical switch ES different from the socket type relay 101 is connected to the break-contact side forming one contact of this switch MS3, and the other terminal of the switch MS4 on the make-contact side. The use of such a relay having a mechanical switch installed to a socket type relay allows the automatic-manual switching and operation check with one relay.
展开▼