Patents
Patents for H01H 71 - Details of the protective switches or relays covered by groups (18,450)
01/1990
01/17/1990EP0350829A2 Selective protective device against short-circuit currents
01/17/1990EP0350826A2 Delaying device
01/17/1990EP0350824A2 Selective overcurrent protection device
01/17/1990EP0350736A2 Linked circuit breakers
01/16/1990US4894747 Side plate tapered twist tab fastening device for fastening side plates to the base
01/16/1990US4894632 Molded case circuit breaker operating mechanism fold-down arrangement
01/16/1990US4894631 Molded case circuit breaker actuator-accessory unit
01/11/1990DE3823101A1 Redundant tripping device
01/10/1990EP0350441A1 Circuit breaker for a distribution panel and method of operating it
01/10/1990EP0349930A2 Switch with pre-alarm means
01/10/1990EP0349929A2 Switch with pre-alarm means
01/09/1990US4893101 Resettable ground fault circuit interrupter
01/09/1990US4891994 Linear electromechanical actuator
01/03/1990CN1006342B Combined trip unit and accessory module for electronic trip circuit breaker
01/02/1990US4891621 Ambient compensator for thermal overload relay
01/02/1990US4891618 Laminated copper assembly
01/02/1990US4891617 Rubber stops in outside poles
01/02/1990CA1264175A1 Magnetically latching and current sensitive automatically unlatching switch assembly
12/1989
12/27/1989EP0347787A2 Protective circuit breaker for an overload current and short circuit
12/27/1989CN2050217U Organic compound temp.-limitation protector
12/26/1989US4890081 CT quick change assembly
12/19/1989US4888570 Circuit breaker
12/14/1989DE3448241C2 High-voltage, high-power (HH) fuse
12/13/1989EP0346249A1 Low-voltage current-limiting circuit breaker with a sealed arc chamber
12/13/1989EP0345412A2 Remotely controllable circuit breaker with improved arc drive structure
12/13/1989EP0345411A2 Remotely controllable circuit breaker
12/12/1989US4887055 Modular option deck assembly
12/05/1989US4885558 Circuit breaker
11/1989
11/29/1989EP0343390A2 Motor starter with protection against short-circuit
11/28/1989US4884164 Molded case electronic circuit interrupter
11/28/1989US4884049 Circuit breaker overcurrent tripping device
11/28/1989US4884048 Molded case circuit breaker current transformer assembly
11/28/1989US4884047 High rating multipole circuit breaker formed by two adjoined molded cases
11/21/1989US4882557 Multipole circuit breaker system with differential pole operation
11/21/1989US4882556 Multi-pole circuit interrupter
11/21/1989CA1263133A1 Circuit breaker with adjustable magnetic trip unit
11/21/1989CA1263132A1 Electromagnetic switching apparatus with interchangeable switches
11/15/1989EP0342133A1 Operating mechanism for a miniature circuit breaker having a contact-welding indicator
11/09/1989DE3820113C1 Additional switch for surface mounting on a line protection circuit breaker
11/08/1989EP0340700A1 Casing for a series-switching apparatus
11/07/1989US4879535 Remotely controllable circuit breaker
11/02/1989EP0339131A2 Electric switch with counteracting electro-dynamic forces
11/01/1989CN1036862A Operating mechanism of an auxiliary trip unit for modular circuit breaker
10/1989
10/31/1989US4878038 Circuit protection device
10/31/1989US4877928 Release mechanism for a high speed circuit breaker
10/25/1989EP0338930A1 Circuit breakers or differential circuit breakers
10/25/1989EP0338868A1 Modular electrical protection or control apparatus
10/25/1989EP0338250A2 Multiphase circuit breaker
10/25/1989CN1036660A Auxiliary control and indicating switch for standard multi-circuit breaker
10/24/1989US4876521 Tripping coil with flux shifting coil and booster coil
10/24/1989US4876493 Motor controlling switch device
10/18/1989EP0337900A1 High sensitivity electromagnetic tripper
10/12/1989EP0298092A4 Circuit breaker trip solenoid assembly.
10/11/1989CN1036292A Molded case circuit breaker with viewing window and sliding barrier
10/04/1989EP0335774A1 Tripping magnet for a circuit breaker
10/03/1989CA1262184A1 Load control apparatus
10/03/1989CA1262162A1 Circuit breaker with visible trip indicator
09/1989
09/27/1989EP0333790A1 Release mechanism for protective switches
09/26/1989US4870532 Electric circuit for operating trip circuit of a circuit breaker
09/26/1989US4870531 Circuit breaker with removable display and keypad
09/26/1989CA1261905A1 Circuit breaker
09/26/1989CA1261455A1 Remote control circuit breaker
09/20/1989EP0333650A1 Power transmission in an electromagnetic trip device of a fitted circuit breaker
09/20/1989EP0332936A1 Switching device with coupling means
09/19/1989US4868535 Miniaturized thermal contact breaker for printed circuit board
09/19/1989US4868529 Circuit breaker armature latch with control leg
09/06/1989EP0331586A1 Actuating mechanism of an auxiliary tripping block for a modular circuit breaker
09/06/1989EP0331384A2 Circuit breaker
09/05/1989US4864268 Pushbutton actuated overload protection switch
09/05/1989US4864263 Molded case circuit breaker latch and operating mechanism assembly
09/05/1989US4864261 Contactor device fo circuit breaker
08/1989
08/31/1989DE3903414A1 Switch combination consisting of a main switch and an auxiliary switch
08/30/1989EP0330421A2 Switch mechanism
08/29/1989US4862131 Trip crossbar translation to prevent bimetal overstressing in a circuit breaker
08/29/1989US4862125 Electrical switching device with cover interlock
08/22/1989US4860162 Molded case and cover arrangement for current limiting circuit interrupters
08/22/1989US4860157 Molded case circuit breaker actuator-accessory module
08/22/1989US4859979 Thermal relay
08/16/1989EP0327894A1 Magnetic control drive
08/09/1989EP0327502A1 Switch latch of a fitted installation switch
08/09/1989EP0327460A1 Automatically opening electric switch, in particular a differential interrupter
08/09/1989EP0327385A1 A mounting assembly for electrical device
08/08/1989US4855698 Protective switching apparatus with remotely controlled opening and closing of the contacts
08/02/1989EP0326449A1 Electromagnetic trip device with an adjustable trip level
08/02/1989EP0326446A1 Auxiliary controlling and indicating switch for a modular multipole circuit breaker
08/02/1989EP0325725A2 Low tension switch with catch lever
07/1989
07/26/1989EP0325501A1 Automatic switches, in particular differential switches and circuit breakers
07/26/1989EP0325071A1 Protection device for electrical installations
07/25/1989CA1257894A1 Circuit breaker with impact trip delay
07/25/1989CA1257893A1 Circuit breaker with trip delay magnetic circuit
07/25/1989CA1257892A1 High speed magnetic contact driver
07/20/1989DE3800582A1 Enlarging the snap-action stroke of the overcurrent trip device
07/18/1989US4849725 Multipolar circuit breaker
07/18/1989US4849590 Electric switch with counteracting electro-electro-dynamic forces
07/18/1989CA1257631A1 Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release
07/11/1989CA1257314A1 Overload protective circuit breaker
07/05/1989EP0323404A1 Release system in a built-in installation circuit breaker
07/05/1989EP0322987A1 Electromagnetic switch
07/05/1989EP0322986A1 Switch, in particular for use as automatic switch
07/04/1989US4845594 Reclosing relay with nonvolatile memory of operations