Abstract: A circuit breaker bracket assembly has two generally U-shaped metal clips, each metal clip having a rearwardly projecting resilient wing formed therein with two forwardly projecting arms extending therefrom, each arm having an aperture which engages a nodule of a recess on a basal portion of a molded plastic cover plate. The molded plastic cover plate has a top face which has flanges preventing the cover plate from sliding through a panel opening. The basal portion has two mounting plugs formed on the back thereof which engage openings in each circuit breaker half case part and upon assembly of the circuit breaker holds the circuit breaker bracket assembly to the circuit breaker case.

Abstract: A low profile mounting bracket carries coupling connector blocks that mate with load and line terminals of a molded split case circuit breaker housing. The housing defines a well for receiving an alarm or auxiliary switch, and the switch is received in a central opening in the bracket with the switch terminals in turn received in a connector that fits into the same central opening. Finally, a PC board is used to electrically connect each switch to external circuitry that may generate alarms or otherwise affect the circuit breaker's operation.

Abstract: An electric switch housing comprises a generally downwardly open rectangular dielectric casing which has laterally spaced side walls and opposed end walls integrally connected at their adjacent vertical edges to form four corners. The casing has a top wall, which includes a raised center rib portion having laterally spaced sockets, and is integrally joined with the top edges of the side and end walls. The casing defines an integrally formed upwardly open cavity for receiving an actuator. The actuator has upper shoulder portions received in the laterally spaced sockets, and is pivotally received in the casing. A generally upwardly open rectangular dielectric base is received in the downwardly open casing, defining a switch cavity containing at least two terminals and at least one movable switch contact in the base. A lamp module is provided in the casing and is supported between the base and the casing.

Abstract: An elastomeric switch case bezel fits tightly around a flange in the housing and has an internal bead that engages the switch rocker to seal it as the rocker moves between limit positions.

Abstract: A current interrupter circuit includes a primary current path and a secondary current path in parallel with one another and provided between input and output terminals. At least one solid state switch, preferably a power MOSFET, are interposed along the secondary current path. At least one electromagnetic relay has relay contacts for engaging and disengaging the primary path from a power source and from the secondary path. A sequencing circuit provides a first control signal to turn on or maintain on the solid state switches prior to sending a second control signal to open/close the relay contacts, and further provides a third control signal to turn off the solid state switches shortly after the relay contacts are opened, whereby arcing of the contacts is prevented.

Abstract: A multi-pole circuit breaker assembly for interrupting AC power to a load upon the detection of an earth leakage fault or an overcurrent condition includes a pair of circuit breaker units mounted adjacent to an earth leakage module. The earth leakage module includes an electronic circuit that senses a current imbalance between the power line lead and the neutral line lead using a differential transformer. In response to a current imbalance greater than a predetermined value, the electronic circuit periodically energizes a switching circuit that provides power across a solenoid. The solenoid, when actuated, engages a common trip mechanism to open concurrently the contacts of the circuit breakers units. The common trip mechanism includes an elongated bar that extends through the casing of the earth leakage module and the circuit breaker units. The elongated bar engages a U-shaped trip member pivotally disposed in each circuit breaker.

Abstract: An electromagnetic circuit breaker is provided with a copper plated arc horn on the top side of the movable contact arm opposite the movable contact. The horn extends beyond the movable contact and has an upturned sweep so as to enhance migration of the electrical arc created upon opening of the contacts during a short circuit condition sensed by the breaker. An arc shoe is provided in conjunction with the fixed contact of the breaker as well and cooperates with the arc horn for the same purpose.

Abstract: An electric switch for converting to rotary motion a rocker style switching mechanism. A switch cavity is formed in the case and a movable contact is provided in the switch cavity. A knob is coupled to an actuator mounted in the cavity for positive pivotal movement on a lateral axis. The knob contains cams formed in an interior knob cavity and is mounted on the switch so that when the knob is rotated on an axis perpendicular to the pivot axis of the actuator, the cams engage the actuator to move the movable contact between "ON" and "OFF" positions.

Abstract: A generally rectangular plastic switch housing has locating tabs that position a U-shaped hardened steel grounding strap on the housing so that the strap and housing can be conveniently mounted from the front of a panel in a panel opening that includes relieved and upset portions designed to make electrical contact with serrated segments of the U-shaped strap's legs. The base of the U-shaped strap has an opening with upset edges designed to make electrical contact with the center terminal in the bottom wall of the switch housing.

Abstract: A split case magnetic circuit breaker has a bracket secured to the front of the breaker housing similar to that used to provide a rocker for operating the breaker manually and for resetting the breaker when tripped. The bracket is formed with a small access window so that the rocker can be reset, but cannot be manually switched off.

Abstract: An electrical switch has three terminals, one that is always connected to one side of an LED and in parallel to a resistor. A rocker slides a movable contact to and from an engine OFF or kill position, from and to an engine RUN position. An oil detector circuit uses the engines magneto system to light the LED when the switch is in the RUN position and the engine is rotated. The flashing LED provides a visual indication of low oil in the engine.

Abstract: A bracket assembly has rearwardly projecting metal wings mounted in a plastic cover plate. The circuit breaker is normally rear mounted in a panel. The cover plate is secured to the breaker with fasteners that secure the metal wings to the breaker housing. The metal wings have legs slidably received in the plastic cover plate providing a convenient subassembly for mounting the breaker from the front of a panel.

Abstract: A two pole electrical switch has side-by-side movable contacts operated by a single rocker/actuator of the type having side-by-side pin recesses. Two pins in these recesses are spring biased toward the movable contacts to achieve contact closing, but one pin has its end offset from the other pin end so the closing is sequential rather than simultaneous.

Abstract: A miniature rotary switch has nested terminals in its bottom wall and a spherical shaped movable contact arranged in a rotatable control member such that a lower portion of the ball rides over upwardly projecting portions of a common contact ring that is nested in the lower portion of a cavity defined in the switch housing or body portion. One of the terminals is staked to the contact ring to provide an OFF position while the other circumaxially spaced positions are defined by U-shaped cut outs in the contact ring that cause the ball to seat between the edges of each U-shaped cut out and the upper end of a fixed contact terminal provided in the semi-circular cut-out area defined by the common contact ring. The ring is so formed that the ball is releasably retained in each switch position and is biased toward such ON positions when not so retained.