Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00

HELECTRICITY H01Electric elements H01HELECTRIC SWITCHES RELAYS SELECTORS EMERGENCY PROTECTIVE DEVICES

H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00

H01H71/002with provision for switching the neutral conductor H01H71/02Housings Casings Bases Mountings H01H71/0207Mounting or assembling the different parts of the circuit breaker H01H71/0214Housing or casing lateral walls containing guiding grooves or special mounting facilities H01H71/0221Majority of parts mounted on central frame or wall H01H71/0228having provisions for interchangeable or replaceable parts H01H71/0235Contacts and the arc extinguishing space inside individual separate cases, which are positioned inside the housing of the circuit breaker H01H71/025Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts H01H71/0257Strength considerations H01H71/0264Mountings or coverplates for complete assembled circuit breakers H01H71/0271Mounting several complete assembled circuit breakers together H01H71/04Means for indicating condition of the switching device H01H71/06Distinguishing marks H01H71/08Terminals Connections H01H71/082Connections between juxtaposed circuit breakers H01H71/10Operating or release mechanisms H01H71/1009Interconnected mechanisms H01H71/1018with only external interconnections H01H71/1027comprising a bidirectional connecting member actuated by the opening movement of one pole to trip a neighbour pole H01H71/1045Multiple circuits-breaker H01H71/1054Means for avoiding unauthorised release H01H71/1072Release mechanisms which are reset by opening movement of contacts H01H71/1081Modifications for selective or back-up protection; Correlation between feeder and branch circuit breaker H01H71/12Automatic release mechanisms with or without manual release H01H71/121Protection of release mechanisms H01H71/122actuated by blowing of a fuse H01H71/123using a solid-state trip unit H01H71/125characterised by sensing elements H01H71/126actuated by dismounting of circuit breaker or removal of part of circuit breaker H01H71/127using piezoelectric, electrostrictive or magnetostrictive trip units H01H71/128Manual release or trip mechanisms H01H71/14Electrothermal mechanisms H01H71/142actuated due to change of magnetic permeability H01H71/145using shape memory materials H01H71/16with bimetal element H01H71/161with helically or spirally wound bimetal H01H71/162with compensation for ambient temperature H01H71/164Heating elements H01H71/18with expanding rod, strip, or wire H01H71/20with fusible mass H01H71/205using a ratchet wheel kept against rotation by solder H01H71/22with compensation for variation of ambient temperature H01H71/24Electromagnetic mechanisms H01H71/2409combined with an electromagnetic current limiting mechanism H01H71/2418combined with an electrodynamic current limiting mechanism H01H71/2436with a holding and a releasing magnet, the holding force being limited due to saturation of the holding magnet H01H71/2445using a reed switch H01H71/2454characterised by the magnetic circuit or active magnetic elements H01H71/2463with plunger type armatures H01H71/2472with rotatable armatures H01H71/2481characterised by the coil design H01H71/26with windings acting in opposition H01H71/28with windings acting in conjunction H01H71/30having additional short-circuited winding H01H71/32having permanently magnetised part H01H71/321characterised by the magnetic circuit or active magnetic elements H01H71/322with plunger type armature H01H71/323with rotatable armature H01H71/325Housings, assembly or disposition of different elements in the housing H01H71/326Sealed housings H01H71/327Manufacturing or calibrating methods H01H71/34having two or more armatures controlled by a common winding H01H71/345having a delayed movable core and a movable armature H01H71/36frequency selective H01H71/38wherein the magnet coil also acts as arc blow-out device H01H71/40Combined electrothermal and electromagnetic mechanisms H01H71/402in which the thermal mechanism influences the magnetic circuit of the electromagnetic mechanism H01H71/405in which a bimetal forms the inductor for the electromagnetic mechanism H01H71/42Induction-motor, induced-current, or electrodynamic release mechanisms H01H71/43Electrodynamic release mechanisms H01H71/44having means for introducing a predetermined time delay H01H71/443with dash-pot H01H71/446making use of an inertia mass H01H71/46having means for operating auxiliary contacts additional to the main contacts H01H71/462housed in a separate casing, juxtaposed to and having the same general contour as the main casing H01H71/465Self-contained, easily replaceable microswitches H01H71/48with provision for short-circuiting the electrical input to the release mechanism after release of the switch H01H71/50Manual reset mechanisms which may be also used for manual release H01H71/501Means for breaking welded contacts; Indicating contact welding or other malfunction of the circuit breaker H01H71/503Means for increasing the opening stroke of the contacts H01H71/504provided with anti-rebound means H01H71/505Latching devices between operating and release mechanism H01H71/52actuated by lever H01H71/521Details concerning the lever handle H01H71/522comprising a cradle-mechanism H01H71/523the contact arm being pivoted on cradle and mechanism spring acting between handle and contact arm H01H71/524the contact arm being pivoted on handle and mechanism spring acting between cradle and contact arm H01H71/525comprising a toggle between cradle and contact arm and mechanism spring acting between handle and toggle knee H01H71/526the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure H01H71/527making use of a walking beam with one extremity latchable, the other extremity actuating or supporting the movable contact and an intermediate part co-operating with the actuator H01H71/528comprising a toggle or collapsible link between handle and contact arm H01H71/529comprising an electroresponsive element forming part of the transmission chain between handle and contact arm H01H71/54actuated by tumbler H01H71/56actuated by rotatable knob or wheel H01H71/58actuated by push-button, pull-knob, or slide H01H71/60actuated by closure of switch casing H01H71/62with means for preventing resetting while abnormal condition persists H01H71/64incorporating toggle linkage H01H71/66Power reset mechanisms H01H71/68actuated by electromagnet H01H71/685in which the excitation of the electromagnet is interrupted by abnormal conditions H01H71/70actuated by electric motor H01H71/72actuated automatically a limited number of times H01H71/74Means for adjusting the conditions under which the device will function to provide protection H01H71/7409Interchangeable elements H01H71/7418Adjusting both electrothermal and electromagnetic mechanism H01H71/7427Adjusting only the electrothermal mechanism H01H71/7436Adjusting the position (or prestrain) of the bimetal H01H71/7445Poly-phase adjustment H01H71/7463Adjusting only the electromagnetic mechanism