This standard specifies hinge-type electromagnetic relays (1) (hereinafter referred to as relays) used mainly for signal transmission in electronic equipment and industrial control circuits in electrical circuits with AC or DC frequencies of 50Hz or 60Hz, voltages of 250V or less, and currents of 30A or less. ). Note (1) A hinge-type electromagnetic relay is a mechanism in which the armature of an electromagnet rotates around a fulcrum by applying or removing an operational input to the coil, and this movement directly or indirectly opens and closes the contacts. relay.
JIS C 4530:1996 history
2010JIS C 4540-1:2010 Electromechanical elementary relays -- Part 1: General requirements