Hazardous location compliant solid state circuit protection devices include safety lockout components ensuring disconnection as a safeguard in the completion of power system maintenance and service tasks by responsible personnel. The safety lockout components may include a mechanical lockout interfacing with a physical lock element, an electrical lockout implemented through the controls of the solid state circuit breaker device, and combinations thereof. Visual device feedback and confirmation may be provided to personnel that the lockouts have been successfully activated, as well as successfully deactivated to reconnect and restore operation of the load side circuitry.

Solid state and hybrid circuit protection devices include improved arc-less switching capability and overcurrent protection, improved terminal assemblies and improved thermal management features that reduce or eliminate ignition sources for hazardous environments. The solid state and hybrid circuit protection devices are ignition protected and avoid possible explosions and therefore obviate a need for conventional explosion-proof enclosures to ensure safe operation of an electrical power system in hazardous locations.

Modular circuit protection devices and configurable panelboard systems include arc-free operation, thermal management features providing safe operation in hazardous environments at lower cost and without requiring conventional explosion-proof enclosures and without entailing series connected separately provided packages such as circuit breaker devices and starter motor contactors and controls.

The present disclosure relates to a molded case circuit breaker, and particularly, to a molded case circuit breaker with an insulated cover. A molded case circuit breaker in which a load-side terminal is connected to an external connection device according to an embodiment of the present disclosure includes an insulating cover coupled to an enclosure of the molded case circuit breaker, in which the insulating cover includes an insulating wall interposed between the enclosure and the external connection device.

A fuse cutout cover is disclosed that allows a lineman to engage a metal hook assembly and pull ring of the cutout with a loadbreak tool at a wide range of angles, while the cover still prevents electrocution of wildlife. A first portion of the cover has a vertical opening for receiving the wire. A second portion has a substantially flat roof portion that covers the top portion of the fuse, the hook assembly, and the pull ring. The hook assembly and pull ring are laterally exposed by the cover to allow the loadbreak tool to engage the hook assembly and pull ring at a wide range of angles. Another feature of the cover is multiple sets of through-holes for securing pins so that the pin locations can be optimized for ceramic insulators and narrower polymer insulators.

For protecting wildlife from high voltage conductors proximate to a utility pole, dielectric covers are used to cover fuse cutouts, bushings, or other connections to insulators. Such covers include a vertical slot for receiving an energized wire so the cover can be installed using a hot-stick while the wire is energized. To eliminate leakage currents flowing across the cover under high voltage conditions, which previously led to localized melting of the cover, inner walls of the cover are molded that are laterally separated from the outer walls of the cover. The double wall design eliminates leakage currents due to the extra dielectric wall and air gap, and the inner wall is not subject to contamination from conductive pollutants. The double wall design also increases the insulating properties of the cover.

A fuse cutout cover is disclosed that allows a lineman to engage a metal hook assembly and pull ring of the cutout with a loadbreak tool at a wide range of angles, while the cover still prevents electrocution of wildlife. A first portion of the cover has a vertical opening for receiving the wire. A second portion has a substantially flat roof portion that covers the top portion of the fuse, the hook assembly, and the pull ring. The hook assembly and pull ring are laterally exposed by the cover to allow the loadbreak tool to engage the hook assembly and pull ring at a wide range of angles. Another feature of the cover is multiple sets of through-holes for securing pins so that the pin locations can be optimized for ceramic insulators and narrower polymer insulators.

A fuse unit for connecting a battery, including a fuse element having an external connection plate part to which a screw terminal fitting is screwed, a resin-made fuse housing for supporting the fuse element, and a rotation regulating part for stopping rotation of the screw terminal fitting screwed to the external connection plate part, the rotation regulating part includes a terminal abutting part which is formed by folding one edge of the external connection plate part and stops the rotation by abutting on one side edge of the screw terminal fitting, and a cover part which is formed integrally to the fuse housing and covers a back surface of the terminal abutting part.

A switch mounting device comprises: a resin seat having an upper surface and a lower surface; a switch mounted on the upper surface of the seat; and terminal members fixed to the lower surface. The seat has claw parts on the lower surface thereof. The switch has a main body part, which is operated by pressing in the X direction, and connection terminals extending downward from this main body part. With connection terminals led out to the lower surface of the seat, the connection terminals are electrically connected to the terminal members. The terminal members are fixed to the seat by the claw parts by way of being slid along the lower surface of the seat.

Embodiments of a power module of a charging station are disclosed herein. The power module includes a printed circuit board, an electrical input for connection to an electrical supply network, an electrical output for connection to a charging control circuit, and a switching actuator electrically connected between the input and the output. The switching actuator is encapsulated in a housing and connected to the printed circuit board by connection contacts led out of the housing. According to the present disclosure, a base of a protective trough is arranged between the housing and the printed circuit board.