for supplying energising current for relay coil

Full Title

Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current > for supplying energising current for relay coil

Child Classifications

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• H01H 47/223
• H01H 47/226
• H01H 47/24 having light-sensitive input
• H01H 47/26 having thermo-sensitive input
• H01H 47/28 Energising current supplied by discharge tube
• H01H 47/32 Energising current supplied by semiconductor device
• H01H 47/34 Energising current supplied by magnetic amplifier
• H01H 47/36 Relay coil or coils forming part of a bridge circuit