Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES

H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism

H01H73/02Details H01H73/04Contacts H01H73/045Bridging contacts H01H73/06Housings Casings Bases Mountings H01H73/08Plug-in housings H01H73/10Cartridge housings H01H73/12Means for indicating condition of the switch H01H73/14Indicating lamp structurally associated with the switch H01H73/16Distinguishing marks H01H73/18Means for extinguishing or suppressing arc H01H73/20Terminals Connections H01H73/22having electrothermal release and no other automatic release H01H73/24reset by lever H01H73/26reset by tumbler H01H73/28reset by rotatable knob or wheel H01H73/30reset by push-button, pull-knob or slide H01H73/303with an insulating body insertable between the contacts when released by a bimetal element H01H73/306the push-button supporting pivotally a combined contact-latch lever H01H73/32reset by closure of switch casing H01H73/34reset action requiring replacement or reconditioning of a fusible or explosive part H01H73/36having electromagnetic release and no other automatic release H01H73/38reset by lever H01H73/40reset by tumbler H01H73/42reset by rotatable knob or wheel H01H73/44reset by push-button, pull-knob or slide H01H73/46reset by closure of switch casing H01H73/48having both electrothermal and electromagnetic automatic release H01H73/50reset by lever H01H73/52reset by tumbler H01H73/54reset by rotatable knob or wheel H01H73/56reset by push-button, pull-knob or slide H01H73/58reset by closure of switch casing H01H73/60Cartridge type H01H73/62having only electrothermal release H01H73/64having only electromagnetic release H01H73/66having combined electrothermal and electromagnetic release