Devices for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts (time or time-programme switches H01H43/00)

Child Classifications

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• H01H 7/02 with fluid timing means
• H01H 7/06 with thermal timing means
• H01H 7/08 with timing by mechanical speed-control devices
• H01H 7/16 Devices for ensuring operation of the switch at a predetermined point in the AC cycle (circuit arrangements H01H9/56)