| Patents for H01H 71 - Details of the protective switches or relays covered by groups (18,450) |
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| 06/15/1988 | EP0271181A2 Magnetic vacuum circuit breaker |
| 06/14/1988 | US4751605 Reader for a digital trip device associated with a current breaking device |
| 06/08/1988 | EP0270158A2 Switching device |
| 06/08/1988 | CN87104289A Circuit breaker with adjustable thermal trip unit |
| 06/07/1988 | US4749829 Circuit breaker |
| 06/01/1988 | DE3717733C1 Mechanism for automatic circuit breakers |
| 05/31/1988 | US4748428 Multi-pole circuit interrupter |
| 05/31/1988 | CA1237459A1 Molded case circuit breaker with calibration adjusting means for a bimetal |
| 05/17/1988 | US4745389 Protection switch with thermal excess-current release |
| 05/17/1988 | CA1236869A1 Circuit breaker |
| 05/10/1988 | US4743878 Circuit interrupter |
| 05/10/1988 | US4743876 Circuit interrupter with undervoltage trip mechanism |
| 05/10/1988 | US4743875 Circuit breaker having a direct current measuring shunt |
| 05/05/1988 | WO1988003336A1 Circuit breaker trip solenoid assembly |
| 05/05/1988 | DE3637275C1 Overcurrent trip device for protection switching apparatuses |
| 05/03/1988 | US4742428 Protective relay and drawout case therefor |
| 05/03/1988 | US4742321 Molded case circuit breaker with accessory functions |
| 05/03/1988 | US4742190 Device for selectively preventing one or more modes of actuating manual control members equipping an apparatus |
| 04/26/1988 | US4740770 Operating mechanism for a low voltage electrical circuit breaker |
| 04/26/1988 | US4740768 Manual trip operator for molded case circuit breaker |
| 04/20/1988 | EP0264318A1 Electromagnetic commutating device with interchangeable switches |
| 04/20/1988 | EP0264314A1 Multipole differential circuit breaker with a modular assembly |
| 04/19/1988 | US4739291 Magnetic vacuum circuit breaker |
| 04/13/1988 | EP0263331A1 Excess current circuit breaker |
| 04/13/1988 | CN87106499A Multipolar earthing leakage switch comprised of standard fittings |
| 04/12/1988 | US4737878 Overload switch |
| 04/06/1988 | EP0262940A2 Circuit breaker with fast trip unit |
| 04/06/1988 | CN87214600U Low-voltage automatic current limit switch |
| 04/05/1988 | US4736174 Molded case circuit breaker operating mechanism |
| 04/05/1988 | CA1234853A1 Molded case circuit breaker with single solenoid operator for rectilinear handle movement |
| 04/05/1988 | CA1234852A1 Molded case circuit breaker with resettable combined undervoltage and manual trip mechanism |
| 03/31/1988 | DE3631948A1 Overcurrent protection circuit breaker |
| 03/22/1988 | US4733031 Switching apparatus protected against short circuit currents |
| 03/22/1988 | US4731921 Method of fabricating a molded case circuit breaker |
| 03/17/1988 | DE3631405A1 Hermetically sealed, permanent-magnet trip device for residual current devices (earth leakage current circuit breakers) |
| 03/16/1988 | EP0260171A1 Electrical apparatus with a manual control lever with on-off position indication |
| 03/16/1988 | EP0259800A2 Bipolar automatic cutout |
| 03/15/1988 | US4731692 Circuit breaker trip solenoid assembly |
| 03/15/1988 | US4731510 Circuit-breaker with tripping lever cooperating with movable contact support member having a resilient blade which effects contact opening and closure |
| 03/09/1988 | EP0259272A2 A circuit breaker, preferably but not exclusively a double-pole circuit breaker, for mounting on enclosed box carrier frames of civil ranges of electric equipment |
| 03/08/1988 | US4730177 Shock and vibration resistant magnetically operated actuator |
| 03/02/1988 | EP0258124A1 Adjusting device for the thermal current of a bimetal thermal tripping device, and protective switch having such a device |
| 03/02/1988 | CN87104264A Circuit breaker with electrical disconnect means |
| 03/01/1988 | US4728914 Rating plug enclosure for molded case circuit breakers |
| 02/24/1988 | EP0256900A1 Apparatus with a device for selective blocking of one or more positions of a manual control element |
| 02/23/1988 | US4727226 Protective switch with couplable poles |
| 02/17/1988 | EP0255992A2 A double-pole circuit breaker for civil range electric equipment, incorporating an arc change-over device |
| 02/17/1988 | EP0255955A2 Circuit interrupter |
| 02/16/1988 | US4725800 Circuit breaker with magnetic shunt hold back circuit |
| 02/16/1988 | US4725799 Circuit breaker with remote control |
| 02/16/1988 | CA1232945A1 Circuit breaker indicator |
| 02/11/1988 | DE3725468A1 Isolating and rotary selector switches for adjusting rated current - are arranged with separable contacts and release unit for opening contacts at adjustable values of overcurrent set by selector |
| 02/11/1988 | DE3634456C1 Remotely controllable line protection circuit breaker having a switching status indication |
| 02/09/1988 | US4724411 Circuit breaker |
| 02/09/1988 | US4723457 Sudden interlocking and teleunlocking mechanical assembly for a translation switch having automatic reinforced interlocker |
| 02/09/1988 | CA1232630A1 Rail mounted automatic switch |
| 02/03/1988 | EP0255483A2 Switching mechanism of a protective switch |
| 02/03/1988 | CN87104627A Combined trip unit and accessory module for electronic trip circuit breakers |
| 01/27/1988 | EP0254162A2 Overload relay |
| 01/27/1988 | EP0253807A1 Unitary switch and circuit breaker |
| 01/20/1988 | EP0253433A2 Delaying device for release elements of electrical ciruits breakers |
| 01/20/1988 | EP0253120A1 Automatic switch block |
| 01/19/1988 | US4720759 Compact protector utilizing a bimetal and an excessive rise prevention portion |
| 01/19/1988 | US4720614 Pushbutton switch with latching arrangement |
| 01/14/1988 | WO1988000406A1 Circuit protector |
| 01/14/1988 | DE3623424A1 Method for switching off a single-phase or multi-phase electrical switching installation (switch gear) and a device for switching off |
| 01/13/1988 | EP0252869A2 Overload switch |
| 01/13/1988 | EP0252786A1 Circuit breaker with two switching circuits, one of which is protected |
| 01/12/1988 | US4719542 Quick-mount device for contactors |
| 01/12/1988 | US4719438 Circuit breaker with fast trip unit |
| 01/12/1988 | US4719437 Electrical ground fault receptacle assembly |
| 01/07/1988 | EP0251569A2 Circuit breaker with adjustable thermal trip unit |
| 01/07/1988 | EP0250494A1 Protection switch |
| 01/05/1988 | CA1231125A1 Latch release mechanism for molded case electric circuit breakers |
| 12/29/1987 | US4716392 Power supply switch |
| 12/23/1987 | EP0250223A2 Circuit breaker with electrical disconnect means |
| 12/22/1987 | US4714907 Miniature electrical circuit breaker with multiple moving contacts and thermomagnetic trip release |
| 12/22/1987 | CA1230626A1 Molded case circuit breaker with movable upper electrical contact positioned by tension springs |
| 12/17/1987 | DE3620289A1 Switching toggle for a latching mechanism |
| 12/15/1987 | US4713643 Low loss circuit breaker and actuator mechanism therefor |
| 12/15/1987 | US4713642 Face connected instrument transformer |
| 12/15/1987 | US4713640 Molded-case circuit breaker with improved contact arm assembly, toggle link means and arc shield component |
| 12/15/1987 | US4713639 Circuit breaker with push-to-trip button and trip bar |
| 12/15/1987 | US4713636 Circuit-breaker |
| 12/15/1987 | US4713635 Multi-phase circuit breaker with interphase barrier retention |
| 12/10/1987 | DE3619242A1 Switching mechanism for a line protection circuit breaker |
| 12/10/1987 | DE3619240A1 Line protection circuit breaker having a contact arrangement which forms a blowing device |
| 12/10/1987 | DE3619239A1 Rapid-action tripping device for line protection circuit breakers |
| 12/09/1987 | EP0248702A1 Process and device for regulating the thermal current of a thermal bimetal release part for a protective switch |
| 12/01/1987 | US4710739 Circuit breaker having shock-proof trip-actuating assembly |
| 12/01/1987 | US4710738 Moulded case circuit breaker |
| 11/19/1987 | EP0245834A2 Trip actuator for molded case circuit breaker |
| 11/17/1987 | US4707674 Auxiliary switch actuator mechanism |
| 11/10/1987 | US4706158 Circuit breaker with self-contained electronic trip actuator and undervoltage release control circuit |
| 11/10/1987 | US4706073 Circuit breaker panels with alarm system |
| 11/10/1987 | US4706054 Thermal magnetic trip unit for molded case circuit breakers |
| 11/04/1987 | EP0244247A2 Circuit breaker with adjustable magnetic trip unit |
| 11/04/1987 | EP0243648A1 Electrical circuit breaker |
| 11/04/1987 | EP0243647A1 Circuit breaker using thermal tripping |
| 11/03/1987 | US4704593 Circuit breaker with adjustable thermal mechanism |