CPC Definition - Subclass H01H
This place covers:
Electric switches, i.e. single points of mechanically operable electrical connection (or interruption). Types, details and manufacture thereof, as detailed below .
Relays, i.e. switching devices having contacts which are operated from electric inputs which supply, directly or indirectly, all the mechanical energy necessary to cause both the closure and the opening of the contacts. Types, details and manufacture thereof. Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current.
Selectors, i.e. arrays of electric switches which selectively connect some inputs out of a plurality of inputs to some outputs out of a plurality of outputs. Types, details, and manufacture thereof in groups H01H 63/00, H01H 65/00 and H01H 67/00.
Protective devices like: circuit-breaking switches, protective switches, fuses, evaporation devices, details and manufacture thereof. This subclass also covers (in groups H01H 69/00 - H01H 87/00) devices for the protection of electric lines or electric machines or apparatus in the event of undesired change from normal electric working conditions, the electrical condition serving directly as the input to the device.
Mechanical structural details of control members of switches or of keyboards such as keys, push-buttons, levers or other mechanisms for transferring the force to the activated elements, even when they are used for controlling electronic switches.
Circuit arrangements not adapted to a particular application of the switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle.
Circuit arrangements for the automatic protection of electric lines or electric machines or apparatus in the event of an undesired change from normal working conditions: H02H
This place does not cover:
Contact cables | |
Electrolytic self-interrupters | |
Emergency protective circuit arrangements | |
Switching by electronic means without contact-making | |
Mechanical details directly producing electronic effects |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Keyboards for special applications, see the relevant subclasses or groups, e.g. | |
Switches mounted on the steering wheel | |
Lever attached to steering wheel for controlling the lights of a car, e.g. steering column stalk switches | |
Manually-actuated control mechanisms provided with one single controlling member co-operating with two or more controlled members, the controlling member being movable by hand about orthogonal axes, e.g. joysticks | |
Switching arrangements for the supply or distribution of electric power | |
Mounting switch and fuse separately on, or in, common support | |
Frameworks for mounting two or more relays or for mounting a relay and another electrical component | |
Arrangements of switchgear in which switches are enclosed in, or structurally associated with, a casing; Gas-insulated switchgear | |
Switches for telephonic communication |
Attention is drawn to the following places, which may be of interest for search:
Micromechanical devices, comprising flexible or deformable elements | |
Processes or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems, e.g. in combination with electrical devices | |
Sensing elements for providing continuous conversion of a variable into mechanical displacement | |
Measuring distances, levels or bearings | |
Measuring liquid level | |
Temperature-responsive elements in general | |
Measuring electric values | |
Arrangements for locating electric faults; Testing of relays | |
Clocks with attached or built-in means operating any device at preselected times or after preselected time intervals | |
Controlling members for hand actuation by rotary movement, e.g. hand wheels | |
Input arrangements for converting discrete items of information into a coded form; Programmable keyboards | |
Overvoltage protection resistors, resistive arresters | |
Cores, Yokes, or armatures in general | |
Magnetic coils or windings in general | |
Magnets in general | |
Electromagnets; Actuators including electromagnets | |
Circuit arrangements for obtaining desired operating characteristics | |
Variable transformers or inductances having provision for tap-changing without interrupting the load current | |
Capacitors in which the capacitance is varied by using variation of distance between electrodes | |
Switching devices of the waveguide type | |
Electric connections in general | |
Switches combined with plug-and-socket connectors | |
Devices for interrupted current collection; Rotary current collectors, distributors, or interrupters | |
Overvoltage arresters using spark gaps | |
Arcing horns per se | |
Disposition or arrangement of fuses on boards | |
Bases, casings, or covers accommodating two or more switching devices or for accommodating a switching device as well as another electric component, e.g. busbar, line connector | |
Installations of electric cables or lines in or on buildings, equivalent structures or vehicles | |
Distribution boxes; Connection or junction boxes | |
Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuit-breaker in the network | |
Constructional features of telephone sets; Construction or mounting of dials or of equivalent devices | |
Selecting apparatus or arrangements in general | |
Casings for electrical apparatus in general |
The use of the Indexing Code scheme H01H 1/00 - H01H 89/10 is mandatory to classify additional (non-invention) information.
The use of the deep indexing scheme H01H 2201/00 - H01H 2239/078 is mandatory whenever appropriate.
Further information:
- Details only described with reference to, or clearly only applicable to, switching devices of a single basic type, are classified in the group appropriate to switching devices of that basic type, e.g. H01H 19/02 or H01H 75/04.
Details of an unspecified type of switching device, or disclosed as applicable to two or more kinds of switching devices designated by the terms or expressions "switches", "relays", "selector switches", and "emergency protective devices", are classified in groups H01H 1/00 - H01H 9/00.
Details of an unspecified type of switch, or disclosed as applicable to two or more types of switches as defined by groups H01H 13/00 - H01H 43/00 and subgroups H01H 35/02, H01H 35/06, H01H 35/14, H01H 35/18, H01H 35/24 and H01H 35/42, all hereinafter called basic types, are classified in groups H01H 1/00 - H01H 9/00.
Apparatus or processes specially adapted for manufacturing of electric switches of an unspecified type are classified in group H01H 11/00.
Details of contact arrangements or operating mechanisms for tap changer devices are classified in the subgroup H01H 9/0005.
- Mechanical structural details of control members specially adapted for rectilinearly movable switches such as keys or push-buttons having a plurality of operating members associated with different sets of contacts, e.g. keyboards, are classified in the subgroup H01H 13/70.
Processes specially adapted for manufacturing of rectilinearly movable switches such as keys or push-buttons having a plurality of operating members associated with different sets of contacts, e.g. keyboards, are classified in the subgroup H01H 13/88.
Earthing or grounding switching devices are classified in the subgroup H01H 31/003.
Vacuum switches are classified in the subgroup H01H 33/66. Combinations of vacuum switches with other type of switch, e.g. for load break switches are classified in the subgroup H01H 33/6661.
- Switches actuated by change of magnetic field or of electric field are classified in the group H01H 36/00.
- Thermally-actuated switches are classified in the group H01H 37/00.
Details of an unspecified type of relay, or disclosed as applicable to two or more types of relays as defined by groups H01H 51/00 - H01H 61/00, hereinafter called basic types, are classified in group H01H 45/00. Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current, are classified in group H01H 47/00.
Apparatus or processes specially adapted for manufacturing of relays are classified in group H01H 49/00.
- Details of an unspecified protective switch or protective relay, or applicable to two or more types of protective devices as defined by groups H01H 73/00 - H01H 83/00, hereinafter called basic types, are classified in group H01H 71/00.
Apparatus or processes specially adapted for manufacturing of protective devices are classified in group H01H 69/00.
Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive are classified in group H01H 85/00.
- The subgroup H01H 9/54 covers circuit arrangements not adapted to a particular application of an unspecified type of switching device and for which no provision exists elsewhere, e.g. combinations of mechanical switches and static switches or for ensuring operation of the switch at a predetermined point in the ac cycle, and is residual with respect to the groups H01H 1/00 - H01H 9/00 and H01H 69/00 - H01H 87/00.
- The subgroup H01H 33/59 covers circuit arrangements not adapted to a particular application of a high-tension or heavy-current switch and not otherwise provided for, e.g. for ensuring operation of the switch at a predetermined point in the ac cycle, and is residual with respect to the groups H01H 31/00 - H01H 33/00.
- Details only described with reference to, or clearly only applicable to, rectilinearly movable switches having operating members associated with different sets of contacts, e.g. keyboards, are classified in the deep indexing scheme for multilayer keyboard switches H01H 2201/00 - H01H 2239/078.
- Details of an unspecified type of switching device, or disclosed as applicable to several kinds of switching devices or relating to the application field of the switching device are classified in a separate orthogonal indexing scheme (pending).
In this place, the following terms or expressions are used with the meaning indicated:
Acting, actuating or action | self-induced, e.g. not manually caused, movement of parts at one stage of the switching. Apply to all parts of the verbs "to operate"; "to actuate", and "to act", and to words derived therefrom, e.g. to "actuation" or "actuating" |
Contacts | necessary elementary components of a switch that ensure the electrical connection, each switch comprising at least two contacts, and possibly more than two |
Driving mechanism | means by which an operating force applied to the switch is transmitted to the moving contact or contacts |
Key | push button |
Operating | broader sense than "actuating", including the manually caused movement of parts at one stage of the switching. |
Push button | knob or button that allows the manual operation of a switch in order to e.g. close an electric circuit |
Relay | switching device having contacts which are operated from electric inputs which supply, directly or indirectly, all the mechanical energy necessary to cause both the closure and the opening of the contacts |
Selector | array of electric switches which selectively connect some inputs out of a plurality of inputs to some outputs out of a plurality of outputs |
Switch | single point of mechanically operable electrical connection (or interruption) |
Switch site | physical location where the contacts can touch each other |
This place does not cover:
Liquid contacts |
Subject matter classifiable in more than one of the groups H01H 1/023 - H01H 1/029 should be classified in all relevant groups.
In this place, the following terms or expressions are used with the meaning indicated:
Composite material | a material made of two or more different materials, e.g. coated material, layered materials or carbon fibres in a copper base or matrix |
This place does not cover:
Bridging contacts for circuit breakers |
Attention is drawn to the following places, which may be of interest for search:
Non-rotating bridges |
Attention is drawn to the following places, which may be of interest for search:
Printed contacts per se |
This place does not cover:
Magnetic force combined with electrodynamic opening |
Attention is drawn to the following places, which may be of interest for search:
Contact arrangements for tap changers |
This place does not cover:
Terminals for high tension switches | |
Terminals for electromagnetic relays | |
Terminals for circuit breakers |
Attention is drawn to the following places, which may be of interest for search:
Electric connections in general |
Attention is drawn to the following places, which may be of interest for search:
Protective enclosures, baffle plates, or screens for arc-extinguishing | |
Protective enclosures, baffle plates, or screens for mercury contacts |
This place does not cover:
Devices for tap changers | |
Thermal actuating or release means |
This place does not cover:
The switch controlling enclosed equipment | |
Switches operated by a removable member |
Attention is drawn to the following places, which may be of interest for search:
Safety arrangements on doors of dishwashers | |
Of laundry washing machines | |
Locks with means for operating switches | |
Alarm locks | |
Safety edges for power-operated wings | |
Safety devices in connection with the locking of doors, covers, guards, or like members giving access to movable machine parts | |
Of ovens | |
Of microwave ovens |
Attention is drawn to the following places, which may be of interest for search:
Storing energy in a spring motor |
Attention is drawn to the following places, which may be of interest for search:
Storing energy in a spring motor |
Attention is drawn to the following places, which may be of interest for search:
Storing energy in a spring motor | |
Operating relays |
This place does not cover:
Energy stored by deformation of bimetallic elements in thermally-actuated switches |
Attention is drawn to the following places, which may be of interest for search:
Time or time-programme switches |
Attention is drawn to the following places, which may be of interest for search:
Thermally actuated switches |
Attention is drawn to the following places, which may be of interest for search:
For protection circuits | |
For distribution networks |
Attention is drawn to the following places, which may be of interest for search:
Contacts adapted to act as latches | |
Auxiliary movement of the operating part or of an attachment thereto | |
Withdrawable switchgear |
Attention is drawn to the following places, which may be of interest for search:
Explosion-proof cases | |
Built-in fuses and interlocking mechanisms | |
By automatic release of circuit breakers |
This place does not cover:
Detachable member | |
Contacts also returning by some external action, e.g. interlocking, protection, remote control | |
Electromagnetic relays |
Attention is drawn to the following places, which may be of interest for search:
Switches operated by a key | |
Locking by removable part of two-part coupling device |
Attention is drawn to the following places, which may be of interest for search:
Multiple parallel contact bars |
This place does not cover:
Processes specially adapted for the manufacture of rectilinearly movable switches having a plurality of operating members associated with different sets of contacts, e.g. keyboards |
Attention is drawn to the following places, which may be of interest for search:
Process or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems, e.g. in combination with electrical devices |
This place does not cover:
Switches wherein the operating part is flexible |
Attention is drawn to the following places, which may be of interest for search:
Specially adapted for rectilinearly movable switches having operating members associated with different sets of contacts, e.g. keyboards |
This place does not cover:
Snap action depending upon deformation of elastic member |
Attention is drawn to the following places, which may be of interest for search:
Latch released by second push-button |
Attention is drawn to the following places, which may be of interest for search:
Single operating member protruding from different sides of switch casing for alternate pushing upon opposite ends |
This place does not cover:
Mounting together a plurality of independent switches |
Attention is drawn to the following places, which may be of interest for search:
Keyboards specially adapted for specific applications, see the relevant subclasses or groups | |
Multiple switches specially adapted for electromechanical clocks or watches |
This place does not cover:
Spacers between contact carrying layers |
Attention is drawn to the following places, which may be of interest for search:
Legends |
Attention is drawn to the following places, which may be of interest for search:
Connections to printed circuits in general |
Attention is drawn to the following places, which may be of interest for search:
Flexible operating part adapted for emergency stop switches |
Attention is drawn to the following places, which may be of interest for search:
Guides |
Attention is drawn to the following places, which may be of interest for search:
Guides |
Attention is drawn to the following places, which may be of interest for search:
Electromechanical contact-making and breaking devices acting as pulse generators for setting |
This place does not cover:
Axial cam devices for transforming the angular movement into linear movement along the axis of rotation |
This place does not cover:
Tumbler or rocker switches | |
Switches having an operating part movable angularly in more than one plane |
In this place, the following terms or expressions are used with the meaning indicated:
Rocking | as pivotal motion in one plane about an axis parallel to the switch faceplate and located substantially centrally between the ends of the rocker button |
Attention is drawn to the following places, which may be of interest for search:
Connections to printed circuits in general |
This place does not cover:
Combined with plug-and-socket connectors | |
Switches with current-carrying plug |
Attention is drawn to the following places, which may be of interest for search:
Locking switch parts to prevent operation |
Attention is drawn to the following places, which may be of interest for search:
IC integrated in key and connected by turning key |
Attention is drawn to the following places, which may be of interest for search:
Starting of engines and safety devices | |
Safety means for electric spark ignition |
Attention is drawn to the following places, which may be of interest for search:
Solid contacts wetted or soaked with mercury |
Attention is drawn to the following places, which may be of interest for search:
Centrifugal mercury switches |
Attention is drawn to the following places, which may be of interest for search:
Switches operated by direct electrodynamic action |
This place does not cover:
Air-break switches in combination with high tension or heavy-current switches with arc-extinguishing or arc-preventing means |
Attention is drawn to the following places, which may be of interest for search:
Switching arrangements for the supply or distribution of electric power |
Attention is drawn to the following places, which may be of interest for search:
Interlocking with high-tension or heavy-current switches having arc-extinguishing or arc-preventing means |
Attention is drawn to the following places, which may be of interest for search:
Interlocking with high-tension or heavy-current switches having arc-extinguishing or arc-preventing means |
Attention is drawn to the following places, which may be of interest for search:
Insulators or insulating bodies characterised by the insulating materials |
Attention is drawn to the following places, which may be of interest for search:
Means for extinguishing or preventing arc between current-carrying parts for switches in general |
Attention is drawn to the following places, which may be of interest for search:
Auxiliary contacts using arcing horns |
This place does not cover:
Vacuum switches |
Attention is drawn to the following places, which may be of interest for search:
Pressure-generated arcs rotated by a magnetic field |
This place does not cover:
Using blow-out magnet |
Attention is drawn to the following places, which may be of interest for search:
Arcing horns per se |
Attention is drawn to the following places, which may be of interest for search:
Storing energy in a spring motor |
Attention is drawn to the following places, which may be of interest for search:
Storing energy in a spring motor |
Attention is drawn to the following places, which may be of interest for search:
Circuit arrangements |
Attention is drawn to the following places, which may be of interest for search:
Cases for switchgear |
Attention is drawn to the following places, which may be of interest for search:
Lowering associated with withdrawal mechanism for isolation of switch |
This place does not cover:
Vacuum switches |
This place does not cover:
Breaks in air at atmospheric pressure |
This place does not cover:
Breaks in air at atmospheric pressure |
This place does not cover:
The movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc and assisting the operating mechanism |
This place does not cover:
The movement being effected by or in conjunction with the contact-operating mechanism making use of the energy of the arc or an auxiliary arc |
This place does not cover:
Operated by change of magnetic or electric field | |
Thermally-actuated switches |
Attention is drawn to the following places, which may be of interest for search:
Time switches | |
Relays | |
Sensing elements for providing continuous conversion of a variable into mechanical displacement |
A switching device is classified according to that physical condition which, when changed, acts as input to the device, e.g. external explosion causing pressure wave to act upon switch is classified in group H01H 35/24, an explosion produced within the switch in group H01H 37/00 if initiated by heat, in group H01H 39/00 if initiated electrically, and in group H01H 35/14 if initiated by an external blow.
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Specially adapted for electromechanical clocks or watches |
Attention is drawn to the following places, which may be of interest for search:
Switches operated by change of fluid flow |
Attention is drawn to the following places, which may be of interest for search:
Level of mercury displaced by centrifugal action |
This place does not cover:
Switches operated by change of acceleration, wherein the liquid constitutes a contact of the switch |
This place does not cover:
Switches operated by magnet carried on a float |
Attention is drawn to the following places, which may be of interest for search:
Switches operated by change of acceleration, wherein the liquid constitutes a contact of the switch |
This place does not cover:
Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow wherein the change of pressure is caused by change of temperature |
Attention is drawn to the following places, which may be of interest for search:
Switches specially adapted for electromechanical clocks or watches |
Attention is drawn to the following places, which may be of interest for search:
Electrothermal relays operated by electrical input | |
Protective switches with electrothermal release or actuation |
This place does not cover:
Encapsulated in sealed miniaturised housing |
Attention is drawn to the following places, which may be of interest for search:
Temperature responsive elements in general |
This place does not cover:
In thermal relays | |
Release mechanism | |
Treatment of SMF alloys | |
For control of temperature |
Attention is drawn to the following places, which may be of interest for search:
Using materials with a configuration memory in general |
This place does not cover:
Fluid forming a contact of the switch |
This place does not cover:
Deflection of a bimetallic element |
This place does not cover:
Inherent in bimetallic element | |
Snap action caused by a magnet |
This place does not cover:
Bistable switches; Resetting means for Bistable switches |
Attention is drawn to the following places, which may be of interest for search:
Electrical protection of electric lines or electric apparatus |
Attention is drawn to the following places, which may be of interest for search:
Fuses |
Attention is drawn to the following places, which may be of interest for search:
Switches for telephone communication |
Attention is drawn to the following places, which may be of interest for search:
Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals | |
Apparatus which can be set and started to measure-off predetermined intervals | |
Programme-control systems |
Attention is drawn to the following places, which may be of interest for search:
Electric connections to or between contacts in general |
This place does not cover:
Electric circuit arrangements | |
Details of electrically-oriented selector switches |
Examples of places where the subject matter of this place is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:
Relays for emergency protective circuit arrangements |
Attention is drawn to the following places, which may be of interest for search:
Electric circuit arrangements | |
Details of electrically-operated selector switches | |
Testing of relays |
This place does not cover:
Casings |
Attention is drawn to the following places, which may be of interest for search:
Screening in general |
This place does not cover:
Operating electrothermal relays |
Attention is drawn to the following places, which may be of interest for search:
Circuit arrangements for electro-magnets in general |
This place does not cover:
Switching regulators |
Attention is drawn to the following places, which may be of interest for search:
Short-circuited conducting sleeves, bands or discs |
Attention is drawn to the following places, which may be of interest for search:
Magnetic amplifiers |
This place does not cover:
Electric circuit arrangements | |
Relays having both armature and contacts within a sealed casing outside which the operating coil is located, e.g. contact carried by a magnetic leaf spring or reed | |
Details of electrically-operated select or switches |
Attention is drawn to the following places, which may be of interest for search:
Testing of relays | |
Electromagnets in general | |
Relays for emergency protective circuit arrangements |
Attention is drawn to the following places, which may be of interest for search:
Auxiliary contact devices in general |
This place does not cover:
Casings |
Attention is drawn to the following places, which may be of interest for search:
Screening in general |
This place does not cover:
Operating electrothermal relays |
This place does not cover:
Terminal arrangements for coils |
Attention is drawn to the following places, which may be of interest for search:
Auxiliary contact devices in general |
Attention is drawn to the following places, which may be of interest for search:
Circuit arrangements | |
Magnetic coils or winding in general |
This place does not cover:
Sleeves, bands, or discs for electromagnets |
Attention is drawn to the following places, which may be of interest for search:
Contacts for switches in general |
Attention is drawn to the following places, which may be of interest for search:
Auxiliary contact devices in general |
This place does not cover:
Contacts for polarised relays |
Attention is drawn to the following places, which may be of interest for search:
Driving arrangements structurally associated with contact spring sets |
Attention is drawn to the following places, which may be of interest for search:
Circuit arrangements for introducing delay | |
Short-circuited conducting sleeves, bands, or discs |
This place does not cover:
Thermal means inherent in electrothermal relays |
Attention is drawn to the following places, which may be of interest for search:
Relays using the dynamo-electric effect |
H01H 51/02 - H01H 51/26 take precedence over H01H 51/01.
Attention is drawn to the following places, which may be of interest for search:
Motors with armature moved one way and returned by spring in general |
Attention is drawn to the following places, which may be of interest for search:
Motors with armature moved one way and returned by spring in general |
This place does not cover:
Polarised relays having both armature and contacts within a sealed casting outside which the operating coil is located |
This place does not cover:
Relays with armature having two stable magnetic states and operated by change from one state to the other |
Attention is drawn to the following places, which may be of interest for search:
Polarised relays in general |
This place does not cover:
Relays with armature having two stable magnetic states and operated by change from one state to the other |
Attention is drawn to the following places, which may be of interest for search:
Mechanical means for producing a desired natural frequency of operation of the contacts | |
Switched devices for electric time devices | |
Electromechanical resonaters | |
Telegraph circuits with oscillating relay |
Attention is drawn to the following places, which may be of interest for search:
Parts of protective circuit arrangements |
Attention is drawn to the following places, which may be of interest for search:
Switches using dynamo-electric motor |
Attention is drawn to the following places, which may be of interest for search:
Electrostatic measuring instruments | |
Clutches in general using the Johnson-Rahbek effect | |
Electrostatic transducers | |
Systems for preventing the formation of electrostatic charges |
This place does not cover:
Thermal switches not operated by electrical input, thermal switches with anticipating electrical input |
Attention is drawn to the following places, which may be of interest for search:
Thermally-sensitive members |
Attention is drawn to the following places, which may be of interest for search:
Making use of shape memory materials |
Attention is drawn to the following places, which may be of interest for search:
Details of relays |
Attention is drawn to the following places, which may be of interest for search:
Racks for mounting selectors with or without other exchange equipment |
Attention is drawn to the following places, which may be of interest for search:
Details of electrically-operated selector switches | |
Selecting in general | |
Methods, circuits, or apparatus for selectively establishing a connection between a desired number of stations |
Attention is drawn to the following places, which may be of interest for search:
Manufacture of switches in general | |
Manufacture of relays in general |
Attention is drawn to the following places, which may be of interest for search:
Measuring electric values |
This place does not cover:
Means for indicating condition of the switching device by means of an auxiliary contact |
Attention is drawn to the following places, which may be of interest for search:
Terminals and Connections in general |
This place does not cover:
Electrothermal mechanisms combined with a electro-thermal time delay relay |
This place does not cover:
With bimetal element |
Attention is drawn to the following places, which may be of interest for search:
Making use of shape memory materials in general |
This place does not cover:
Bimetal elements combined with detection of imbalance of two or more currents |
This place does not cover:
For current measuring using electromagnetic relays |
Attention is drawn to the following places, which may be of interest for search:
Reed switches in general |
This place does not cover:
Windings acting in opposition |
This place does not cover:
Short-circuited winding | |
Additional armature |
Attention is drawn to the following places, which may be of interest for search:
For switches in general |
Attention is drawn to the following places, which may be of interest for search:
Contacting bridge per se | |
Rotating bridge |
Attention is drawn to the following places, which may be of interest for search:
Plug-in housings for a plurality of juxtaposed housings |
Attention is drawn to the following places, which may be of interest for search:
Indicating condition of the switch by means of an auxiliary contact |
This place does not cover:
Magnet coil acting as blow-out device |
Attention is drawn to the following places, which may be of interest for search:
Terminals and Connections in general |
This place does not cover:
Cartridge type |
This place does not cover:
Cartridge type |
This place does not cover:
Cartridge type |
Attention is drawn to the following places, which may be of interest for search:
Circuit arrangements |
This place does not cover:
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 | |
Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of power reset mechanism |
This place does not cover:
Electromagnetic opening combined with electromagnetic release mechanism |
This place does not cover:
Electrodynamic opening combined with electromagnetic release mechanism |
This place does not cover:
Protective switches in which excess current causes the closing of contacts, e.g. for short-circuiting the apparatus to be protected |
This place does not cover:
Operated by unbalance of two or more currents or voltages, e.g. for differential protection |
This place does not cover:
Switches actuated by melting of fusible material | |
Disposition or arrangement of fuses on boards |
Attention is drawn to the following places, which may be of interest for search:
Automatic release of protective switches due to fusion of a mass |
H01H 85/046 - H01H 85/048 take precedence over H01H 85/044.
H01H 85/045 - H01H 85/048 take precedence over H01H 85/0445.
This place does not cover:
M-effect devices |
This place does not cover:
M-effect devices |
Attention is drawn to the following places, which may be of interest for search:
Electrical contacts | |
Fillings |
Attention is drawn to the following places, which may be of interest for search:
Bases, casings for connectors, in general |
Attention is drawn to the following places, which may be of interest for search:
Interlocking between casing or protective shutter of a switch and mechanism for operating its contacts |
This place does not cover:
Means for extinguishing or suppressing arc by powder filling | |
Means for extinguishing or suppressing arc by mechanical tension applied to fusible member |
This place does not cover:
Arc-extinguishing liquid characterised by the composition of the liquid |
This place does not cover:
Arc-extinguishing gas characterised by the composition of the gas |