Abstract: A housing for electrical equipment, for insertion into an installation opening of a switching panel, includes a housing body which can be pushed through the installation opening in an insertion direction and a covering wall connected to the housing body which extends generally transversely to the insertion direction. The covering wall includes a collar which projects outwardly beyond the housing body in a direction which is transverse to the insertion direction, such that the collar limits insertion of the housing body into the opening. A plurality of lugs are connected to the housing body, and each of the lugs has a free end and is resiliently biased toward an initial position relative to the housing body. The housing body has a pair of side walls, and each of the pair of side walls supports an end of at least one corresponding one of the plurality of lugs at an acute angle thereto. Each free end extends to a location which is adjacent to the collar of the covering wall.

Abstract: A push-button actuated overload protection switch, particularly an on-board protection switch having instant ON switching as well as manual, thermal and/or electromagnetic tripping. The switch has various components such as a switch housing, a pushbutton and an associated spring, a contact bridge and a toggle lever device, a detent lever and a detent pawl, as well as two switch rods, these parts being interconnected to obtain the desired switching function.

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: In an overload protective circuit breaker, a fixed contact element and a bimetal contact element are arranged in parallel beside each other. When a current overload occurs and the bimetal junction is heated, a movable contact post on a snap disc mounted on the bimetal contact element moves away from a fixed contact post on the fixed contact element, thereby breaking circuit, and an insulating wall piece of a slider body will be moved automatically into the gap between the two contact posts so as to break circuit and cut off an arc forming between the two moving-apart posts and accelerating cooling of the bimetal junction. Returning the circuit breaker to circuit-making position requires depression of a push button which is preferably a leg of an L-shaped switch member, the other L-leg being constituted by the slider body.

Abstract: A door-bolting device for electrical appliances, in particular washing machines, comprises a longitudinally displaceable slide bolt having a locking opening for a door-locking hook, one or two bolting openings for engagement by a bolting rod, and a lock-down recess. In open position, the free end of a signal contact spring enters this lock-down recess; this spring and a fixed contactor member opposite and parallel with the former constitute a signal contact unit. During bolting operation, a signal contact is made in this unit and controls a bolt-actuating relay comprising a magnet yoke, a coil, a core and a double-armed magnet armature lever. The free end of a bolting arm of the latter constitutes a bearing for the bolting rod which is displaced, during bolting operation, by a swivel motion of the lever. The end of a main contact arm of the same lever serves as bearing for a connecting shaft which is fastened to a diaphragm subdividing a pressure chamber.

Abstract: A single pole or multi-pole, manually or thermally operable overload protective circuit breaker contains in its main switching chamber an elbow lever which consists of an actuating arm and a main contact arm, and functions as active connection between an actuating element and a contact bridge member. The ends of the actuating arm and the main contact arm, which face away from the elbow joint, are articulatedly connected with a pressure button or the like actuating element and the contact bridge member, respectively. In any positions of swivelling from a folded, i.e. the circuit-breaking, to a stretched, i.e., an arrested circuit making position, of the elbow lever, the centers of the swivel joints are located on the central longitudinal axis of the circuit breaker, which axis extends toward the depth of an insulating housing of the latter.

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.

Abstract: An overload circuit breaker has a housing and a tripping device supported in the housing and having a helically wound, current-carrying bimetal strip composed of two face-to-face arranged metal components situated, respectively, at the inside and at the outside of the bimetal strip. The bimetal strip has a tripping portion which executes a tripping motion as the bimetal strip undergoes deformation under the effect of heat generated by an excess current flowing through the bimetal strip. The bimetal strip is formed of two electrically serially connected, oppositely wound bimetal helices each having an outer end constituting the opposite ends of the bimetal strip. The bimetal strip is affixed to the housing at both of its opposite ends. Further, the bimetal helices each have an inner end connected to one another by a coupling part. The coupling part constitutes the tripping portion of the bimetal strip.

Abstract: A terminal board assembly made of electrical insulating material and composed of elements for the mounting of a row of electrical devices and elements for connecting electric wires to each device, the mounting and connecting elements associated with each device being arranged in a row which extends perpendicular to the row of devices, the assembly being constituted by a plurality of identical terminal board units connected together in an interlocked manner and lying in a common plane in the direction of the row of devices, each unit containing all of the mounting and connecting elements for at least one electrical device.

Abstract: A circuit breaker composed of a contact spring fixed at one end, carrying a movable contact at its free end and biassed to urge the movable contact away from an associated fixed contact, a switching rocker pivotally mounted to selectively move the spring into a contact closing position, and a release device arranged to move the spring into the contact opening position independently of the position of the rocker, is further provided with a latching lever which extends approximately parallel to the contact spring, is mounted to be pivotal in a direction parallel to the direction of movement of the spring and of the rocker, and is operatively connected between the spring, the rocker and the release device.

Abstract: In a push button actuated, bimetal controlled, current overload switch capable of undergoing trip-free release and including a bimetal strip disposed in a housing, an angular contact bridge disposed in the housing and forming part of the current path provided by the switch, a switching rod mounted in the housing for axial movement relative thereto and having one end extending out of the housing, a switching rod extension mounted at the other end of the rod and within the housing and arranged to bear against the bridge, and a spring disposed to maintain a spring force between the bridge and the extension, opening of the switch by actuation of the rod is made possible by the provision of an obliquely extending lever disposed in the housing, having one end pivotally secured to the housing, having its other end engaging the bimetal strip, and located in the path of travel of the extension during axial movement of the rod into the housing for enabling such movement of the rod to displace the lever in a direction t

Abstract: A bimetal circuit breaker comprises a frame and a plate-like bimetal component which includes a base part, two U-shaped legs each having a first leg portion, a second leg portion and a U-shaped connecting portion. Each first leg portion is attached to the base part and diverges therefrom in a V shape. The circuit breaker further has a movable contact affixed to each second leg portion; a support tab attached to the base part and extending between the first leg portions; a support member attached to the frame and engaging a free end of the support tab for positioning the bimetal component in the frame; stationary contacts carried by the frame and cooperating with the movable contacts; and a rocker support held in the frame and engaging the base part in an over-the-center arrangement. The bimetal component and the rocker support have first and second stable positions in which the movable contacts are in engagement or out of engagement with the respective stationary contacts.

Abstract: An electric on-off switch which may optionally include a thermal trip including a bimetal strip.The switch comprises a housing having therein a stationary contact which is engageable by a movable contact carried by a contact spring. The spring is actuated by a mechanism including a tiltable operating lever which carries a release lever. An operating cam is provided on the release lever for depressing the contact spring and causing the movable contact to engage the stationary contact.When the switch includes a directly or indirectly heated bimetal strip, the release lever is pivotally carried by the operating lever which carries a torsion spring. The torsion spring biases the release lever into contact with a set screw secured to the bimetal strip and also urges the cam into contact with the contact spring. A pivotally mounted, elongate lever is preferably disposed between the set screw and the release lever.

Abstract: An electrically operated door lock has a bolt movable into locking and unlocking positions; a generally cylindrical, positive temperature coefficient resistor; and a bimetal strip formed of a generally circular, open collar continuing in two spaced legs extending away from the resistor. The collar surrounds the resistor along its generally cylindrical surface. One of the two spaced legs constitutes a bolt-actuating terminus connected, directly or indirectly, with the bolt for moving the bolt upon deformation of the bimetal strip resulting from temperature changes caused by the resistor.