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 a hazardous location.

A fuse adapter kit for a fuse of a switch-fuse module and a switch-fuse module. The fuse adapter kit includes: a fuse canister having an axially elongated fuse receiving portion adapted to receive the fuse; and at least one terminal having i) an axial fuse receiving opening for receiving an axial end portion of the fuse, ii) a lateral protrusion forming a mechanical male connector, and iii) an electrical terminal connector laterally arranged within the mechanical male connector for electrically connecting the fuse to an electrical canister connector; wherein the fuse canister has a fuse mounting wall portion extending axially along a back side of the fuse receiving portion, the fuse mounting wall portion having at least three fuse mounting openings at different axial positions along the fuse mounting wall portion, each of the fuse mounting openings forming a mechanical female connector matching the mechanical male connector of the terminal to form a mechanical plug connection, and wherein the fuse canister further includes the electrical canister connector arranged at at least one of the fuse mounting openings for electrically connecting to the electrical terminal connector.

The power distribution component is configured to connect to a power distribution box in a pluggable manner. A main body is provided with a first power terminal, a signal terminal, and a second power terminal that are arranged along a first direction. The first power terminal is configured to electrically connect to a first power busbar of the power distribution box, the signal terminal is configured to electrically connect to a signal busbar of the power distribution box, and the second power terminal is configured to electrically connect to a second power busbar of the power distribution box. Polarities of the first power terminal and the second power terminal are opposite. An end, facing away from the main body, of the mistake proofing structure is provided with an abutting surface, configured to abut against the signal busbar when the power distribution component is reversely inserted into the power distribution box.

An electromagnetic relay capable of externally and manually controlling, turning on, and shutting off electric power includes casing, push-pull rod and relay module. The casing has top cover, where slideway is formed, and an end of the slideway has bump. The push-pull rod is installed to the slideway and has an end formed into hook portion and passed into the casing. An open slot, which has fitting hole and sliding hole, is formed on the push-pull rod. The relay module is installed at the chassis and has elastic contact plate assembly and lever, and an end of the lever is engaged with the hook portion. After the fitting hole is sheathed on the bump, the sliding hole is moved relative to the bump, so that the hook portion drives the lever to push the elastic contact plate assembly to define electrical connection or disconnection state according to different requirements.

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.

An apparatus is disclosed. The apparatus has a base assembly, a movable assembly that is movably supported by the base assembly, a structural assembly that is supported by the movable assembly, a plurality of electrical assemblies that are supported by the structural assembly, an actuating assembly configured to move the movable assembly relative to the base assembly, and a first electrical connector that is electrically connectable to the actuating assembly and the plurality of electrical assemblies. The apparatus also has a second electrical connector that is electrically connectable to a power source, and a switch assembly disposed on the second electrical connector. The first and second electrical connectors are electrically connected via one or more contact members that are movably disposed relative to the base assembly.

The invention relates to an electric switch for electric appliances. The electric switch include a switch housing, an actuating element, and a plug socket. The actuating element is configured to switch a contact system accommodated in the switch housing by movement between a switch-off position and a switch-on position. The plug socket is non-detachably connected to the switch housing. Electrical connections of the contact system are held in the plug socket such that ends of the electrical connections are in predetermined positions.

A system is provided for suppressing transient currents in electrical circuits to prevent damage to switching devices such as relays and/or solid-state switching devices. An associated automatic transfer switch (ATS) system (300) includes a primary power cord terminating in cord cap (302) for receiving power from a primary power source and a secondary power cord terminating in cord cap (304) for receiving power from a secondary power source. The system (300) further includes an output (306) for connecting to an output load such as a piece of electronic equipment. The output (306) may be a female outlet such that the system (300) can be directly connected to a male power port of a piece of equipment. The system (300) further includes a micro-ATS module (308) operative to sense a power outage or degradation of signal quality for the power signal of at least the primary power source and, in response, to switch the power supply from the primary source to the secondary power source. A surge suppression circuit (310) is interposed in the secondary power cord between the module (308) and the cord cap (304).

An apparatus is disclosed. The apparatus has a base assembly, a movable assembly that is movably supported by the base assembly, a structural assembly that is supported by the movable assembly, a plurality of electrical assemblies that are supported by the structural assembly, an actuating assembly configured to move the movable assembly relative to the base assembly, and a first electrical connector that is electrically connectable to the actuating assembly and the plurality of electrical assemblies. The apparatus also has a second electrical connector that is electrically connectable to a power source, and a switch assembly disposed on the second electrical connector. The first and second electrical connectors are electrically connected via one or more contact members that are movably disposed relative to the base assembly.

A trigger switch includes a housing including a casing; a trigger coupled to the housing to be capable of approaching and separating from the housing; a contact mechanism; a first terminal extending from outside of the housing to the casing; and a second terminal extending from outside of the housing to the casing and including a plate surface facing a plate surface of the first terminal. A first wire connection portion capable of connecting a conductor portion of a first wire is provided to an end of the first terminal located outside of the housing in an extending direction of the first terminal, and a second wire connection portion capable of connecting a conductor portion of a second wire is provided to an end of the second terminal located outside of the housing in an extending direction of the second terminal.