Patents
Sitemap › H01 - Basic electric elements › H01H - Electric switches; Relays; Selectors; Emergency protective devices › H01H 71 - Details of the protective switches or relays covered by groups
Patents for H01H 71 - Details of the protective switches or relays covered by groups (18,450)
10/1990
10/16/1990US4963848 Non-jamming magnetic trip structure
10/16/1990US4963847 Circuit breaker with transparent tube magnetic core holder
10/16/1990US4963846 Trip interlock design
10/16/1990US4963797 Ballast assembly
10/13/1990CA2010916A1 Circuit protector construction
10/11/1990CA2010862A1 Circuit breaker with transparent tube magnetic core holder
10/10/1990EP0391086A1 Push button operated overload circuit breaker
10/09/1990CA1275139A1 Fast manual closing mechanism of miniature circuit breaker
10/04/1990DE3921511C1 Thermal overcurrent relay protecting AC appts. - has slide operated by bimetal unit heated by working current
10/04/1990DE3909230A1 Switching mechanism for low-voltage switching devices
10/03/1990CN1045891A Adjustable circuit breaker thermal trip unit
10/02/1990CA1274872A1 Circuit breaker with self-contained electronic trip actuator
09/1990
09/26/1990EP0389185A2 Adjustable circuit breaker thermal trip unit
09/26/1990EP0389075A1 Power circuit breaker with an undervoltage tripping device
09/25/1990CA1274616A1 Device for selectively invalidating one or several actuating modes of apparatus manual controllers
09/25/1990CA1274588A1 Face connected instrument transformer
09/22/1990CA2010888A1 Adjustable circuit breaker thermal trip unit
09/20/1990WO1990010968A1 Automatically resetting circuit protector
09/20/1990WO1990010967A1 Solid state circuit protector
09/20/1990DE3908350A1 Electrical coil
09/18/1990US4958252 Circuit breaker with rating plug having memory
09/18/1990US4958136 Circuit breaker with individual gap adjustment at high and low settings of magnetic trip
09/18/1990US4958135 High rating molded case multipole circuit breaker
09/12/1990EP0387162A1 Automatic resetting device for circuit breakers, and circuit breakers equipped with such a device
09/12/1990EP0387158A1 Device for assembly and connection of electrical equipment modules by a comb
09/12/1990EP0386768A2 Circuit device having circuit breaking and leakage current detecting functions
09/08/1990CA2010695A1 Circuit breaker with individual gap adjustment at high and low settings of magnetic trip
09/07/1990WO1990010300A1 A line terminal and arc stack for a circuit breaker
09/07/1990CA2009771A1 Device for the automatic resetting of circuit breackers and circuit breakers aquipped with such a device
09/06/1990DE3907094A1 Surface-mounted switch for electrical protective switching devices
09/06/1990CA2010889A1 Field installable heavy duty undervoltage release
09/05/1990EP0385201A1 Cycling bimetal circuit breaker
09/04/1990USRE33325 Remotely controllable circuit breaker
09/04/1990US4954671 Connectible switching device
09/04/1990US4954170 Methods of making high performance compacts and products
08/1990
08/29/1990EP0384156A2 Ambient Compensator for thermal overload relay
08/22/1990CA2008275A1 Line terminal and arc stack for a circuit breaker
08/21/1990US4951022 Sensitive latch and trip mechanism
08/21/1990US4951021 Electromagnetic switching apparatus having dynamically balanced latch trip
08/21/1990US4951020 Circuit breaker assembly
08/21/1990US4951019 Electrical circuit breaker operating handle block
08/21/1990US4951015 Circuit breaker with moving magnetic core for low current magnetic trip
08/21/1990US4950853 Tapered stationary contact-line copper cross reference to related applications
08/21/1990US4950848 Adjustable circuit breaker with draw out interlock
08/21/1990CA2010513A1 Contactor with protected switches
08/21/1990CA1273039A1 Circuit breaker with magnetic shunt hold back circuit
08/21/1990CA1273038A1 Circuit breaker with fast trip unit
08/17/1990CA2007153A1 Molded case circuit breaker bell alarm unit
08/15/1990CN2060595U Explosion-proof leakage protector
08/14/1990US4949059 Flange engagement of captive tube by enclosure wall in electromagnetic circuit breakers mounted on a base
08/07/1990US4947284 Field-installable heavy duty undervoltage release
08/07/1990US4947145 Remote-controlled circuit breaker
08/02/1990DE4001992A1 Moulded case circuit breaker auxiliary switch unit - includes access cover to allow field installation of accessory components before connection within circuit and indicates on-off condition
08/01/1990EP0379558A1 Drive mechanism for circuit breaker
07/1990
07/31/1990US4945345 Circuit breaker signal
07/31/1990US4945329 Tripping device with burning prevention switch
07/31/1990US4945326 Circuit breaker
07/31/1990US4945325 Circuit breaker with smooth sliding operation
07/31/1990CA1272233A1 Circuit breaker trip solenoid assembly
07/25/1990EP0378679A1 Circuit breaker auxiliary device snap-on package.
07/24/1990US4943691 Low-voltage limiting circuit breaker with leaktight extinguishing chamber
07/18/1990EP0378030A1 Inviolable regulating device for an electrical apparatus
07/17/1990US4942382 Electrical switch mechanism having two release modes
07/11/1990EP0377479A1 Trip device for an electrical switch and an electrical switch with this trip device
07/11/1990EP0377385A1 Operating mechanism for a multiple fault-current protective switch with a rotary crossbar
07/10/1990US4940957 Flange engagement of captive tube in electromagnetic circuit breakers using half shells
07/10/1990CA1271503A1 Overload switch
07/05/1990CA2007088A1 Electronic temperature relay and related thermal element
07/03/1990US4939495 Circuit breaker with auxiliary status indicating switch
07/03/1990US4939492 Electromagnetic trip device with tripping threshold adjustment
07/03/1990US4939491 Combination barrier and auxiliary CT board
07/03/1990US4939490 Molded case circuit breaker bell alarm unit
07/03/1990CA2006860A1 Trip device for an electrical switch and an electrical switch with this trip device
06/1990
06/28/1990DE3843154A1 Tripping device for switching devices (switchgear) and switching installations in the medium-voltage range
06/27/1990EP0375568A1 Modulator assembly device for a multipole differential circuit breaker
06/27/1990EP0375488A1 Housing for modular electrical devices with a closing device
06/27/1990EP0374283A1 Electronic sectionalizer with resettable actuator
06/27/1990CN2058785U 电路断路器 Circuit breaker
06/26/1990US4937706 Ground fault current protective device
06/20/1990EP0373271A1 An electro-magnetic shunt trip device
06/20/1990CN1043222A Apparatus for limiting travel of circuit breaker operating lever
06/19/1990US4935715 Sectionalizer with externally mounted electronic controller
06/19/1990US4935712 Operation mechanism of a circuit breaker allowing automatic or manual operation
06/19/1990US4935711 Electromagnetic switch
06/19/1990US4934948 Load terminal configuration for circuit breaker or the like
06/15/1990CA2004528A1 Sensitive latch and trip mechanism
06/13/1990EP0372142A1 Device for electrical protection comprising clamping means of a calibrating srew for the bimetal element of a thermal circuit breaker in a box.
06/12/1990US4933653 Circuit breaker with low current magnetic trip
06/12/1990CA1270287A1 Molded case circuit breaker with front accessible control panel
06/08/1990CA2004181A1 Electrical circuit breaker handle locking apparatus
06/07/1990DE3840699A1 Switching mechanism for protective switching devices (switchgear)
06/06/1990EP0371887A1 Modular breaker with an auxiliary tripping block with independent or automatic resetting
06/06/1990EP0371757A2 Residual current devices
06/06/1990EP0371419A2 Electrical circuit breaker
06/06/1990EP0371416A2 Thermal relay
06/06/1990EP0371415A2 Thermal relay with a bimetal compensation
06/06/1990CN1042801A Magnetic breaker having wide-range threshold of trip-out
06/06/1990CN1042800A Magnetic system for snap-opening
06/05/1990US4931762 Circuit breaker construction
06/05/1990US4931758 Electro-magnetic shunt trip device
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