Abstract: A stationary contact spring for a relay includes a base section fixed in a housing of the relay, a contact area opposite the base section adapted to perform an electric switching with a contact force, a spring section extending between the base section and the contact area, and an abutting latch abutting the housing with a biasing force directed against the contact force.

Abstract: Electrical switchgear which combines, connected electrically in series, a visible disconnect switch (operated by a main switch actuator) and a circuit breaker module (which may also be termed an interrupter) including circuit breaker contacts which are opened and closed by an electrically-activated magnetic actuator and capable of interrupting fault currents. The magnetic actuator is stable in either a breaker-closed state or a breaker-open state without requiring electrical current flow through the magnetic actuator. An interlock is provided such that, as the main switch actuator begins to move from its switch-closed position to its switch-open position, the breaker-closed state is destabilized to open the circuit breaker contacts. An interlock is also provided such that the circuit breaker contacts cannot close while the visible disconnect switch is open.

Abstract: An apparatus and method for restricting auxiliary latch movement within a tripped circuit breaker. An auxiliary latch is held in a closed state and is biased into an open state. When the trip bar is activated in response to an overload condition, it releases the auxiliary latch which pivots to the open state. The cradle is released and pivots to disengage the breaker contact. Tabs on the cradle and auxiliary latch cooperatively interlock to limit auxiliary latch movement until the latch is properly reset.

Abstract: A low voltage electrical appliance having a mechanical interlock means comprises at least two contactors, wherein every contactor includes a base (11, 21), a support (12, 22), a top cover (4) and a contact holding sliding part (13, 23) in the base. Two contactors which are arranged in parallel both have one mechanical interlock means, which includes an interlocking element (3). The shaft of the interlocking element (3) may rotate in the slot of the base (11, 21). By the swinging of the interlocking element (3), a tang of the interlocking element (3) extends into the locking aperture of the contact holding sliding part, thereby preventing the energization action of the contact holding sliding part.

Abstract: An interlock is presented which may be mechanically interconnected with a circuit breaker. The interlock toggles between a locked out position that causes the circuit breaker to trip and prevents closure thereof and a non-locked out position wherein the circuit breaker functions. The interlock includes a frame, a lockout actuator supported by the frame, a reset actuator also supported by the frame and a latching assembly. The latching assembly includes a lockout lever that is responsive to movement of the lockout actuator that is pivotably supported by the frame and a lockout trip rod responsive to movement of the lockout actuator. Also provided is a reset lever that is responsive to movement of the reset actuator and that is also pivotably supported by the frame. The reset lever is configured to prevent movement of the lockout actuator without movement of the reset lever and wherein the lockout trip rod is configured for movement between a locked out position and a non-locked out position.

Abstract: A circuit breaker includes an enclosure with a first side and a second side opposite and distal from the first side. A number of separable contacts are enclosed by the enclosure. An operating mechanism is structured to open and close the separable contacts. A plurality of terminals are electrically interconnected with the number of separable contacts. The terminals protrude through the second side of the enclosure. A number of phase barrier apparatus is disposed on the second side of the enclosure. Each of the number of phase barrier apparatus includes a plurality of separate phase barrier members, each of which is disposed about a corresponding one of the terminals, and a number of interlocking members. Each of the number of interlocking members interlocks with an adjacent pair of the separate phase barrier members.

Abstract: A motor vehicle starter is of the type comprising an electromagnetic contactor, the winding of which is connected to the positive pole of the battery of the vehicle through an auxiliary control relay, the movable contact of which is arranged to connect electrically together two contact pads which are themselves connected, respectively, to the input terminal of the contactor winding and to the positive contactor terminal, and of the type in which the contactor includes at one of its axial ends a closure hood of insulating material in the general form of a cylindrical pot, with the two terminals of the contactor being disposed in the base of the hood. The auxiliary control relay is disposed inside a housing defined by the contactor hood.

Abstract: A motor safety switch which eliminates much of the costs of conventional wiring, material and labor, the motor safety switch being formed of a plurality of assembled independent components; a first of the components including a switch unit having a contact system, a thermal tripper and a magnetic tripper; a second of the components being an electromagnetic drive unit; a third of the components being a modular contact unit; and the independent components are maintained by mechanical connectors in selected assembled relationship to include either all of the aforementioned independent components or selective subassemblies thereof.

Abstract: A variable composition switching device realizable by the assembling of modular elements and including at least one circuit breaker module i.e. switch module and at least one control and/or protection module. The circuit breaker module consists of a case with two opposing junction sides allowing for assembly by juxtaposition of several circuit breaker modules, one assembly side comprising a duct orifice of the thruster of the curcuit breaker device and two assembly areas of a control and/or protection module. The control modules include suitable means for activating the thruster.

Abstract: A circuit breaker is disclosed wherein two breakers are arranged in mirror image relation having their respective contacts facing each other and abutting alternately either a common contact carrier of U-shaped configurations while double contact is prevented mechanically. In an alternative version the stationary contacts are arranged for an axial operation change. The arrangement permits reduction in internal connections as well as in space requirement without loss in function as compared with known multiple circuit breaker units.

Abstract: A relay coil is fixed in a housing adjacent a pair of vertically spaced, stationary contacts, which are electrically insulated from one another, and which have associated terminals that project exteriorly of the housing. A pair of resilient switch arms project from a stationary metal plate in the housing transversely across one end of the armature coil in spaced, parallel relation to each other. At their ends remote from the metal plate the switch arms carry a pair of contacts which register with the stationary contacts in the housing. An armature member is secured to and extends along the inside surface of each switch arm in confronting relation to the adjacent end of the armature coil.

Abstract: A latching relay employing an electro-magnetic relay coil having associated therewith opposite end armatures. This relay coil receives operating power by way of an input contact member. One of the armatures carries a manually operated switch which also includes an end for actuating the closure contact. The opposite armature functions to assist in the manual switching and in its inactive state blocks operation of the primary armature. Another contact is associated with one of the armatures for providing high power transfer.

Abstract: The invention relates to a multiple relay comprising a control relay (9) a plurality of individual relays (8). The "fixed" contacts of the individual relays (8) are in fact, only semi-stationary and are carried on a common insulator bar (4) which pivots on an axis (5) under the control of the control relay. Each semi-stationary "fixed" contact of an individual relay is connected to a conductor bar (6) (one conductor bar per semi-stationary contact of the relay) carried by the common bar. Electrical contact between a semi-stationary contact and a moving contact is established by energizing the control relay then the individual relay and by de-energizing the control relay and then the individual relay; the semi-stationary contact locks the moving contact. Electrical contact is broken by momentarily energizing the control relay.