Abstract: An electrical power connector is disclosed, configured as either a plug connector or a receptacle connector, which includes at least one retractable lever that provides a mechanical advantage to the user to facilitate the coupling and uncoupling of a plug connector to a receptacle connector. The retractable lever is suitable for applications in which space is relatively limited. The plug connector and the receptacle connector are each connected to an electrical cable on one end. The opposing ends of the plug connector and the receptacle connector are configured to mate with each other so that there is a continuous electrical current path from the cable connected to the plug connector to the cable connected to the receptacle connector. In accordance with an important aspect of the invention, the retractable lever is rotatably connected to one or the other of the plug connector or the receptacle connector.

Abstract: An electrical power connector is disclosed, configured as either a plug connector or a receptacle connector, which includes at least one retractable lever that provides a mechanical advantage to the user to facilitate the coupling and uncoupling of a plug connector to a receptacle connector. In accordance with an important aspect of the invention, the retractable lever is suitable for applications in which space is relatively limited. The plug connector and the receptacle connector may be formed with a generally circular cross section. The plug connector and the receptacle connector are each connected to an electrical cable on one end. The opposing ends of the plug connector and the receptacle connector are configured to mate with each other so that there is a continuous electrical current path from the cable connected to the plug connector to the cable connected to the receptacle connector.

Abstract: A power clip for a printed circuit board. The power clip comprises a substantially planar base having an electrical contact extending therefrom, especially in the form of a spring clip. The base of the power clip has stand-offs at opposed ends and a raised platform extending downwardly to contact the surface of the printed circuit board. The base has a plurality of electrical contact pins in a grid pattern. The pins are adapted for insertion into plated through holes in a printed circuit board.

Abstract: A molded case circuit breaker interlock unit connects between a fuse enclosure attached to one end. Upon the occurrence of a short circuit within a protected circuit, the fuse operates to isolate the protected equipment and is conveniently replaced without disassembling the circuit breaker components. The interlock unit prevents resetting the circuit breaker operating mechanism until the fuse is replaced.

Abstract: A removable keypad controls the electronic trip unit used within state-of-art electronic circuit breakers. The keypad allows inputting and displaying relevant circuit interruption information. Unauthorized access to the trip unit settings is prevented by blocking off the keypad "ENTER" key while still allowing access to the keypad's remaining function keys.

Abstract: A molded case circuit breaker handle interlock unit is arranged on the top surface of the circuit breaker to lockingly prevent intentional displacement of the circuit breaker operating handle from either the ON or OFF positions. The movable clip on the unit is attached to the circuit breaker handle to prevent tampering.

Abstract: A molded case circuit breaker handle interlock unit is arranged on the top surface of the circuit breaker to lockingly prevent intentional displacement of the circuit breaker operating handle from either the ON or OFF positions. The movable clip on the unit is attached to the circuit breaker handle to prevent tampering.

Abstract: An industrial-rated circuit breaker cover is adapted for optimally receiving an advanced electronic trip unit including a keypad and display unit as well as a basic electronic trip unit providing circuit interruption facility without the keypad and display unit. The load terminals electrically connect the current sensing transformers with the external power circuit and receive the same size lugs that connect the circuit breaker with the electrical power distribution circuits.

Abstract: An undervoltage release accessory is attached to the interior of a circuit breaker enclosure proximate the operating handle assembly. A reset mechanism positioned between the handle operator and the undervoltage release plunger resets the undervoltage release plunger after an undervoltage condition. A flexible reset spring on the reset mechanism compensates for mechanical tolerances between the reset mechanism and the undervoltage release plunger.

Abstract: An adapter assembly is provided for use with circuit breakers having automatic charge and employing undervoltage release accessory. The adapter is inserted between the undervoltage release tripping mechanism and the circuit breaker operating mechanism to prevent the circuit breaker from tripping from a charged position when the circuit breaker contacts are open. The adapter assembly interferes with the undervoltage tripping lever when the circuit breaker contacts are open to prevent the undervoltage release tripping mechanism from tripping the breaker under conditions of undervoltage or power outage, thus providing a true stored energy device regardless of undervoltage conditions.