Abstract: An overcurrent circuit breaker arranged inside an approximately cube-shaped, two-part insulating housing, having a chassis section and a locking section. Located between the parallel side walls of the housing sections is a switchgear with a contact bridge, the movement of which is guided parallel to the side walls and which extends in essentially longitudinal direction at a right angle to the side walls and while in the on position between two fixed contacts that are fastened inside the housing and are positioned on both sides of the movement plane for the switchgear. The fixed contacts are flat pieces akin to a knife blade and fit against the side walls and, respectively, form a contact point with their narrow, knifeblade type edges facing the contact bridge. With their rear sides opposite the contact points, the fixed contacts fit against a flank wall of housing. As a result of this, the fixed contacts are positioned in an especially space-saving manner in the corners of housing.

Abstract: A protective device for an electrical consumer disposed in a consumer circuit. The protective device has sensor elements for detecting an operating state of the electrical consumer, and an electronic evaluation and control unit operatively connected to the sensor elements for evaluating and controlling the operating state of the electrical consumer detected by the sensor elements. The protective device further includes a protective switch responsive to the operating state of the electrical consumer for interrupting the consumer circuit. The protective switch comprises a control circuit including a bimetallic strip and a temperature-dependent resistor for deflecting the bimetallic strip for interrupting the consumer circuit, the bimetallic strip thereby defining a deflecting direction. The protective device further includes a power supply unit for supplying electrical power to the sensor elements, the evaluation and control unit and the protective switch.

Abstract: An electrical instrument switch includes a rocker switch for manual on-and-off switching and that is seated in an insulation housing. Depending on the pivot position, the rocker switch moves, with a working end that dips into the housing interior, a contact bridge between the closed position of its contact and the open position of its contact. The contact bridge is electrically connected in series with a contact spring that can be triggered thermally and hence acts as an overcurrent protection. The contact spring can move between its contact position and its open position. The contact spring is mechanically prestressed in the direction of its open position. When overcurrent occurs, it is transferred out of its contact position into its open position by a thermal triggering element. A pivot of the rocker switch counter to the mechanical prestress, in the tipping direction of the contact spring, guides the contact spring from its open position back into its contact position.

Abstract: A single- or multi-pole circuit breaker has a housing that includes a housing shell and a closure shell attached thereto to form a hollow chamber. The closure shell and the housing shell each having an inside wall surface extending parallel to a shell plane. The circuit breaker includes n-1, where n is an integer greater than 1, intermediate housing shells inserted between the housing shell and the closure shell, and having first and second wall surfaces corresponding to the housing shell wall surface and the closure shell wall surface, respectively. The first wall surface faces the closure shell wall surface, and the second wall surface faces the housing shell wall surface to form n hollow pole chambers. A switching mechanism for tripping the circuit breaker includes a switch lever located within each pole chamber. The switch lever has at least one of a trip lever and a latching lever.

Abstract: A bimetal controlled circuit breaker includes a current bus that is electrically connected in series with the bimetal element. The current bus extends parallel to the bimetal element in the deflection plane of the latter and is rigid relative to the bimetal element. The deflection of the bimetal element is supported by the action of electrodynamic forces. In order for the circuit breaker to be suitable for greater current intensities and the effect of the electrodynamic forces to be better utilized, the bimetal element is electrically connected in parallel with a shunt path.

Abstract: A circuit breaker which is remote controllable by an external remote control switch by way of an electronic control unit and an electromagnetic switch drive controlled by the electronic control unit. The switch drive switches the electric circuit by a switch lock, which is latched to it and which, during an overload, is unlatched and opened by way of the release of the bimetal of switch drive and, as a result, interrupts the electric circuit. During bimetal release, an auxiliary switch is actuated, which by way of the electronic control unit turns the remote control switch off and re-latches switch drive with the opened switch lock.

Abstract: A push button operated circuit breaker with thermal tripping by way of a bimetal strip includes an angled contact bridge which is mounted within a switch housing to be freely pivotal and is urged in a tripping direction by a tripping spring against a contact lug of the bimetal strip projecting laterally for engagement with a contact piece of the contact bridge. The circuit breaker further including a connecting arm which is coupled for movement with the bimetal strip. The cylindrical exterior surface of a drum-shaped rotary body lies against the connecting arm and thus creates a kinematic connection between the rotary body and the connecting arm. When the switch housing is fully assembled, the drum-shaped rotary body is operative as an adjustment eccentric which is externally manipulatable by way of a hexagonal recess so as to adjust the tripping characteristic of the circuit breaker.

Abstract: A safety door lock for a door of an electrical appliance includes a longitudinally displaceable detent bolt mounted in a door of an appliance, a door lock housing having an opening receiving the free end of the detent bolt, and a longitudinally displaceable switching slide that having a stub end adapted to engage with the free end of the detent bolt. After engagement, further longitudinal displacement of the detent bolt causes movement of the switching slide to its "on" position. A biasing mechanism urges the switching slide toward an "off" position in which a detent mechanism latches the detent bolt in a locking position upon insertion of the detent bolt in the door lock housing. The detent mechanism includes a releasable locking latch which clamps the switching slide in the "on" position.

Abstract: An overload protection switch having a push button for manually initiating actuation of the overload protection switch and a movable contact member forming a switching path and having at least one fixed contact. There is a lockable trip mechanism actuated by the push button for controlling the movable contact member during actuation of the overload protection switch and a bimetal element which includes a locking lever pivotal into a locking position and pivotal into its unlocking position. A trip slide is articulated to the movable contact member and is charged in a turn-off direction. The trip slide is additionally supported in its path of movement by a housing groove at a counterslope fixed to the housing. An essentially wedge-shaped inner angle is formed to reduce friction forces at the locking lever and produce a lower tripping force at the bimetal element.

Abstract: A push button actuated overload protection switch includes a bimetal member which holds a contact bridge in a latched ON position. The contact bridge is configured as an approximately rectangular angle lever and is mounted on a switch rod so as to be freely pivotal and displaceable in the axial direction. The contact bridge is under the pressure of a switch spring which is supported at the switch rod. During turn-off the contact bridge is released by the bimetal member and pressed against an oblique abutment at the housing and pivoted into an oblique engagement position, whereby a projection on the switch rod engages the contact bridge. Subsequent actuation of the push button causes the contact bridge to be transferred into its ON position in which the pressure of the switch spring presses it into engagement behind a contact piece of the bimetal member and into contact with a contact terminal.

Abstract: A push button-actuated overload protective circuit breaker with bimetal cutout comprises a housing between the sidewalls of which two contact segments are held in position, and a push button and a pressure spring associated therewith are guided for longitudinal displacement therebetween. The ends of the contact elements which protrude from the housing are devised as plug-in prongs arranged in parallel with each other. In order to provide a circuit breaker of such small size that it can be plugged into a flat-shape fuse female plug socket, the contact elements are provided in a middle zone thereof, each with a step-like bend the height of which corresponds to about half the height of the interior space in the housing. The bent contact ends then come to rest against the opposite internal surfaces of the housing sidewalls.At one of the contact ends of a first contact element there is fastened a bimetal snap spring with one side thereof and extends transverse to the direction in which the contact elements extend.

Abstract: An actuating fixture for use with a push-pull switch comprises a push-pull button through which a tightening screw extends axially, and a clamping tongs which can be closed by the screw. In its operational end position, the tongs grips an actuating head of the switch below an annular flange of the head. The push-pull button projects from a collar portion of a protective housing, and the collar portion and a casing of the switch bear external threadings which are both of the same type and diameter. The push-pull button is connected with the end of the protective housing facing toward the switch by means of an encasing hose of water-tight, flexible material. The actuating fixture has an internal threading which can be screwed on to the aforesaid external threading of the switch casing.

Abstract: An overcurrent protection switch having one or more thermal and/or magnetic trips (14,21) and a mechanical switch latch which essentially consists of an actuating element and a latching lever (6) which acts in conjunction with the former and which with its first end acts upon a plunger (8) which is guided in the longitudinal direction of the housing (69) under an initial spring tension and which drives the switching contacts, and which latching lever rests with its other end in the latching position under an initial spring tension on a support area (13) of a trip lever (9), wherein, for improving the switching-off characteristics and the handling characteristics of the switch, the trip lever (9) is constructed as an essentially L-shaped angle lever which in the area of its angle is rotationally supported on a shaft (75) which is stationary with respect to the housing, which lever is subjected to an initial spring tension with respect to the thermal and/or magnetic trip (14,21) and which engages with the swive

Abstract: In an overload protection switch including a narrow housing, bimetal strips mounted in the housing, a pushbutton mounted in, and projecting out of, the housing and made of insulating material, the pushbutton being provided with a partition and being movable relative to the housing between an on position in which a conductive path is established via the strips and an off position in which such conductive path is broken, and a spring device urging the pushbutton into its off position, the housing and bimetal strips are physically symmetrical to the longitudinal center axis of the housing, the path of movement of the pushbutton is along that center axis, there are two identical bimetal strips disposed symmetrically relative to the center axis, each strip having a first part fastened to the housing and a second part which is movable relative to the housing in response to temperature changes, with the second parts converging toward one another while remaining out of contact, the pushbutton carries a conductive con

Abstract: A manually operated two-pole excess-current protective circuit breaker includes a bimetal control for a switching latch serving both contact bridges. In case of an excess current, the circuit breaker is tripped by a switching latch actuated by the bimetal by virtue of its heat-caused deformation. The circuit breaker unit is provided with a plug-in auxiliary tripping unit having a solenoid-actuated plunger extending into the circuit breaker housing. The plunger moves codirectionally with the working end of the bimetal and cooperates with the switching latch of the circuit breaker. The plunger may assume an actuating position and a withdrawn position dependent upon whether the solenoid is in an energized or a de-energized state and the auxiliary tripping unit may serve as a zero-voltage tripper or as an excess-current tripper dependent upon its structural design which determines the relationship of the plunger positions to the states of solenoid energization.

Abstract: A locking device includes a housing, a plunger slidably supported in the housing for displacement in a first direction between two end positions and an electromagnet disposed in the housing and having a solenoid and an armature displaceable in a second direction by the force of a magnetic field generated upon energization of the solenoid and a coupling arrangement for operatively connecting the armature with the plunger for affecting the position of the plunger dependent upon the position of the armature. The coupling arrangement comprises a switch-over device which has two stable end positions and which is force-transmittingly connected to the plunger.