Abstract: A vehicle power system includes an electrical power source, an electrical bus, and a contactor electrically connected with the electrical power source and electrical bus. The contactor includes first and second poles, dual plungers each operatively associated with one of the first and second poles, and an electromagnetic coil configured to cause at least one of the dual plungers to move if the coil is energized.

Abstract: In a case for a circuit breaker in which a terminal is simply replaceable or mountable according to a wiring method of the circuit breaker, the case comprises a case which accommodates components for breaking a circuit, a terminal block portion which provides a common platform for plural types of terminals, and a door engaged with the case in monolithic form so that it may be operable to a closed position for closing the case or an opened position for installing a selected terminal of the plural types of terminals.

Abstract: A contactor with modular connection of the coil according to the invention comprises an insulating body, an operating coil housed in the insulating body, and means of modular connection of the coil to an external circuit so that the coil can be powered. The coil connection means comprise a connection arrangement, internal to the body, comprising at least two pairs of contact pieces positioned near at least two faces of the insulating body, these two faces being chosen from the front face and two opposed side faces running transversely between the front face and the rear face, each contact piece facing an opening in the body, and at least one removable connection module comprising a pair of connection terminals, which is connected to a second pair of contacts which are intended to collaborate with a first pair of contact pieces of the internal connection arrangement.

Abstract: An apparatus for sensing relative positions of mechanically coupled devices. The apparatus includes a magnetically actuated switch connected to a set of flux conductors to form a switch assembly. A permanent magnet is affixed to a set of flux conductors to form a magnet assembly. The flux conductors are positioned adjacently to conduct flux from the permanent magnet to the magnetically actuated switch. Movement of either assembly results in the reduction of flux conduction between the magnet and the magnetically actuated switch. The apparatus can be integrated into a helmet mount for night vision goggles to sense the relative position of the helmet mount for controlling the operation of the night vision goggle.

Abstract: A gas appliance control assembly includes a gas valve and a reed switch operated simultaneously by rotation of a single shaft. The reed switch opens and closes a circuit including an electronic ignition module and a spark igniter so that spark is provided as the gas valve is adjusted to a burner igniting condition.

Abstract: A trip bar is provided for an electrical switching apparatus, such as a circuit breaker. The circuit breaker includes a housing, an operating mechanism, and a number of accessories installable within the housing. At least one of the accessories has an actuator, such as a stem. The trip bar includes an elongated pivot member having a first end pivotably coupled to the operating mechanism, a second end disposed opposite and distal from the first end, and at least one protrusion extending outwardly from the elongated pivot member between the first and second ends. Such protrusion is actuatable by the stem to pivot the elongated pivot member. A deflecting mechanism, such as a cam surface, is disposed at or about the second end of the elongated pivot member. When such one of the accessories is being installed within the housing, the stem deflects the cam surface to facilitate insertion.

Abstract: Provided is an electromagnetic relay which does not require a braided wire for securing a current capacity of a main contact unit. The electromagnetic relay includes a main contact unit inserted into a power supply path to a load and an arc contact unit connected in parallel to the main contact unit. An auxiliary contact unit is electrically independent of the main contact unit and the arc contact unit. The main contact unit includes a main fixed contact fixed to a frame body and a main contact spring made of a leaf spring and fitted with a main mobile contact which is attached to and detached from the main fixed contact. The arc contact unit and the auxiliary contact unit are arranged adjacent to each other. The main contact spring extends in a direction in which the arc contact unit and the auxiliary contact unit are arranged.

Abstract: The invention relates to a electromechanical switching device having two movable contact elements interacting with a fixed contact. Said switching device has a housing. When viewing a fixing side from the top, said housing is divided into two areas bordering with a longitudinal side of the housing, one of the movable contact elements and the corresponding fixed contact being located in said areas, wherein each of the housing areas has a narrow partial area and a broad partial area bordering therewith. The broad partial area of the first housing area is adjacent to the narrow partial area of the second housing area and the narrow partial area of the first housing area is adjacent to the broad partial area of the second housing area. The actuation directions of the movable contact elements are directed opposite each other.

Abstract: A complex electromagnetic relay including a plurality of relay structures configured respectively as relays independent of each other, each relay structure including an electromagnet assembly and a contact section acting to open or close in accordance with an operation of the electromagnet assembly; and a housing accommodating the relay structures in a mutually inverted orientation with contact sections of the relay structures being located alternately at opposing sides. The electromagnet assemblies in the relay structures are provided individually with bobbins supporting coils. The housing includes an enclosing wall enclosing the relay structures in an envelope-like manner and a partition wall arranged between the relay structures disposed side-by-side to separate the relay structures from each other. The bobbins of the electromagnet assemblies are fixedly attached to the enclosing wall as well as to the partition wall.

Abstract: An electromagnetic relay comprises a coil and a contact group containing a plurality of normally open contacts which are connected in series under control of an electromagnet created when this coil is energized. This electromagnetic relay can prevent a short-circuit from occurring between the normally closed contact and the normally open contact due to an arc even though the contact gap length is reduced.

Abstract: The object of this invention is to provide a relay unit and a housing for that unit to be used when a number of relay switches are installed side by side in a circuit to switch a power supply circuit on and off. A number of compartments are provided in a case with an open top such that one relay fits into each compartment. The relays are placed into these compartments, and a cover is fitted onto the open top of the case. Slits are provided along the upper edge of the case and/or in the cover, through which the connectors attached to the terminals of the various relays can pass. The cover is placed on top of the case with the connectors attached to the terminals of the various relays running through the various slits. With this invention, a number of relay switches are put into a single package (housing), thus making the relays easier to handle. The package makes it easier to mount and wire multiple relay switches.

Abstract: A remote operated device including: a plurality of circuit breakers; a first actuator in operable communication with a second actuator, the first actuator positions the second actuator at a circuit breaker of the plurality of circuit breakers, the second actuator mounted external to the plurality of circuit breakers, the second actuator moves a handle of the circuit breaker to an on position, an off position, or performs a reset operation; and a controller in electronic communication with the first actuator and the second actuator.

Abstract: An electromagnetic relay apparatus, which is improved in miniaturization, performance, assembly accuracy, cost reduction, productivity, and reliability. A plurality of electromagnetic relays, each having an NO contact that is closed by applying exciting current to a coil and an NC contact that is closed when the excitation current is not passed through the coil, are arranged in line, one diagonally opposite to the next, on a base so that the respective NO/NC contacts of adjacent electromagnetic relays are located in diagonally opposed positions in substantially point symmetrical relation. The electromagnetic relay includes an electromagnetic block having a couple of moving contacts, a first stationary contact and a second stationary contact both being connectable to external wiring, which are composed of uniform parts or components.

Abstract: The invention relates to a twin relay with at least two drive mechanisms which are separate from each other. The drive mechanisms each act on designated contact springs and both act on a single contact assembly.

Abstract: The present invention provides a circuit breaker (10) and a cover (20) for a molded case circuit breaker having an operating mechanism (40) and an intermediate latching mechanism (52) with the cover (20) comprising a substantially planer member having a central opening (29) and an accessory compartment (22) formed in the planer member on either side of the opening (29) with the accessory compartment (22) configured to accept a plurality of different types of accessories (20) and having a plurality of holes (24) wherein a circuit breaker accessory (80) is nested in the accessory compartment (22) and is in contact with one of the operating mechanism (40) and the intermediate latching mechanism (52) within the housing (12).

Abstract: Fixed terminals 60 and 80 are mounted by being engaged with the flanges of the spools of electromagnetic blocks 1 and 31 by use of a press fitting or another method, by which the flanges are joined in parallel to each other so as to join the electromagnetic blocks 1 and 31 to each other. This arrangement allows the provision of a twin type electromagnetic relay in which two electromagnetic blocks are joined in parallel to each other, the relay has a reduced number of components and a simple structure in which the electromagnetic blocks and the fixed terminals are stably joined to each other with high accuracy.

Abstract: The inventive relay has a base body in the form of a coil body (1), the base body supporting a core (16), a yoke (20), an armature (22) and a contact spring (23) which is connected to the armature. Fixed contact supports (34) and a contact spring connection pin (5) which consist of semi-finished wire with a preferably rectangular or square cross-section are embedded in a flange (12) of the coil body (1). The inventive electromagnetic relay is therefore very simple to produce. There is no wasted material, no punching tools are needed for the contact connection parts and since no particles of plastic are abraded by insertion, there is no risk of this impairing the quality of the relay.

Abstract: An electro-mechanical reversing contactor is disclosed in which a single common base is molded to receive two contactor powerheads. The common base has a bottom surface and upwardly extending sides, with an upwardly extending center divider, thereby forming two powerhead sockets. Each powerhead socket is capable of receiving a powerhead therein. The common base also has a circuit board pocket to receive a single circuit board to control both contactor powerheads. The center divider has an upwardly extending interlock tower to receive an interlock pawl that is engageable with each of the contactor powerheads. The interlock mechanism mechanically prevents both contactors from being energized at the same time. The common base for two powerheads saves labor and material costs in assembling and installing a reversing contactor.

Abstract: A spring-powered operator controls a high power circuit breaker by discharging an energy storing spring to rapidly close the circuit breaker against the bias of its internal opening springs, and latches to keep the circuit breaker closed until the receipt of a trip command which unlatches the operator and allows the circuit breaker to open. In response to discharging the energy storing spring, the operator immediately starts charging again in order to prepare for another closing of the circuit breaker. The operator uses a relatively low-power motor to drive a ratchet wheel that indirectly compresses the energy storing spring through a crank mechanism and, upon a release of the spring, uses a cam driven by the spring to act directly on a lever coupled to the breaker. The operator has a low number of parts and is able to close a circuit breaker particularly rapidly and reliably.

Abstract: For the purpose of achieving an efficient and long-lived switching contact making on the basis of a structural design saving space and material, a reversing circuit for direction reversal in the case of direct current drives comprises four single-pole contactors which are arranged in a square and which are provided with coils 1 and with contact bridges 2 as well as four contact pieces 3 for connecting the outer terminals with fixed contacts formed by said contact pieces 3, the contact pieces 3 being arranged on one side of the coils in a square within one plane.

Abstract: A circuit breaker structure having a faster trip unit characterized by a circuit breaker operator and a trip unit comprising a coil, a core, and an armature, a flux concentrating plate spaced from and on the side of the armature opposite the core and for concentrating the magnetic field between the core and the armature, and a hold-back bracket having extending from and retaining the armature in a spaced position from the core so as to cause the magnetic field lines to flow through the bracket and the armature.

Abstract: A small electromagnetic relay in which an electromagnet (116), having at least a core (130), a coil bobbin (128) and an armature (117), is accommodated in a box-shaped insulated housing (110) which has surrounding walls (114a, 114b) to hold contact terminals (111a, 111b, 112a, 112b), the electromagnet having an accommodation portion that is molded on the outer surface of a flange (138) of the coil bobbin as a unitary structure to rotatably hold the armature, the coil bobbin being equipped with the armature and the core.

Abstract: A multiple reed switch module includes multiple reed switches aligned in fixed, spacial relation by thermoplastic side rails attached to the switch leads, with lead ends extending perpendicularly from the leads in parallel relation. The side rails function as a spacing mechanism and facilitate handling of the switches, and the efficient insertion of the multiple parallel lead ends in circuit board assemblies.

Abstract: There is provided a method of producing a contact switching device comprising a step of pressing an electrically conductive metal sheet to form a lead frame having at least one relatively resilient contact member extending from one of terminal portions and a stationary contact member extending from the other terminal portion, said relatively resilient contact member and said stationary contact member being disposed in mutually opposed and spaced apart relation, a step of bending external rim portions of said lead frame while said relatively resilient contact member is biased in such a manner that the opposed relatively resilient contact member and stationary contact member are brought together into partially overlapping relation, a molding step for forming an insulating base at base portions of said two terminal members, and a terminal-forming step of cutting said lead frame to leave said two terminal portions.

Abstract: One or more mercury displacement switches are positioned against a plate-shaped mounting bracket and interlocked to the plate by means of a strap extending around each switch and through the mounting bracket.

Abstract: An electromagnetic switch assembly having a structure adapted for integral formation of component parts and for reduction in size and production cost, including an insulating base plate having at least one through hole formed therein to serve as a cell for relay contacts. An integrated type switching device can be realized with a matrix array of such through holes and electromagnetic relays associated therewith, the relay contacts being mounted on the base plate through the medium of two groups of conductive layers formed on the opposite surfaces of the base plate and extending along the lines and rows of contact cells, respectively.