A power distribution panel for distributing power to a plurality of components. A modular frame may removably attach in an aperture of a side of a chassis. A first module may be removably attached in an opening of the modular frame. A second module, different from the first module, may be removably attached in the opening of the modular frame.

A novel electrical box to house one or more ISO micro relays, is adapted to support IP67 and IP69K Ingress Protection ratings. The housing of the electrical box is molded with blade sockets that correspond to blade positions of the ISO micro relay. The housing is also molded with terminal seats and cylindrical openings which vary, depending on the blade socket, enabling terminals of different sizes, orientations, and positions relative to the respective blades, to be easily inserted into the back of the housing. The resulting position of the terminals ensures that electrical connections to the ISO micro relay are made and ingress protection of components inside the electrical box is ensured.

A novel electrical box to house one or more ISO micro relays, is adapted to support IP67 and IP69K Ingress Protection ratings. The housing of the electrical box is molded with blade sockets that correspond to blade positions of the ISO micro relay. The housing is also molded with terminal seats and cylindrical openings which vary, depending on the blade socket, enabling terminals of different sizes, orientations, and positions relative to the respective blades, to be easily inserted into the back of the housing. The resulting position of the terminals ensures that electrical connections to the ISO micro relay are made and ingress protection of components inside the electrical box is ensured.

A prefabricated electrical module and system along with fabrication and installation methods are provided. The prefab electrical module includes a circuit breaker panel casing that houses multiple circuit breakers, and a chase extending upwardly from the panel casing that stows coiled lengths of homerun wiring attached to the circuit breakers. During transport, a temporary panel casing front cover protects the panel casing front, and a forwardly protruding guard cover with an upwardly projecting hoisting handle shields the front and top of the chase and wiring. During installation, a hoisting bracket is attached at the top of the stud bay into which the prefab electrical module will be installed. A drill-powered winch is then used to lift the module to the proper height in the bay. The panel casing, chase, wiring, and breakers remain in the wall. The hoisting bracket, temporary panel casing front cover, guard cover, drill, and winch are reusable.

A seal for a vacuum chamber is formed from two outer insulation blocks, an intermediate insulation block, some interior insulation sheets and some exterior insulation sheets. A first outer insulation block seals between a first wall of the vacuum chamber and a first power transmission plate. A second outer insulation block seals between a second wall of the vacuum chamber and a second power transmission plate. The intermediate insulation block seals between the first and second power transmission plates. The interior insulation sheets are arranged in slots in a first side of the intermediate insulation block. The exterior insulation sheets are arranged in the slots in a second side of the intermediate insulation block.

A seal for a vacuum chamber is formed from two outer insulation blocks, an intermediate insulation block, some interior insulation sheets and some exterior insulation sheets. A first outer insulation block seals between a first wall of the vacuum chamber and a first power transmission plate. A second outer insulation block seals between a second wall of the vacuum chamber and a second power transmission plate. The intermediate insulation block seals between the first and second power transmission plates. The interior insulation sheets are arranged in slots in a first side of the intermediate insulation block. The exterior insulation sheets are arranged in the slots in a second side of the intermediate insulation block.

A cabinet For electronic components, the cabinet comprising an outer wall, a closure, and an attachment structure, the cuter wall encapsulating an internal space and forming an opening, the closure being attached to the outer wall by the attachment structure, and the attachment structure allowing movement of the closure relative to the outer wall between an open position where the opening is uncovered and a closed position where the opening is covered by the closure. To enable automatic and fast opening of the cabinet in case of over pressure, e.g. caused by arching of electronic components in the cabinet, the cabinet Further comprises a magnet structure comprising at least one magnet arranged to hold the closure in the closed position and to release the closure in response to a pressure in the internal space.

The invention relates to an explosion-proof housing (10) with a housing body (11) which delimits an interior (13) and has a housing opening (14). The housing opening (14) can be closed by means of a cover (17). In the closed position of the cover (17), a flameproof gap (18) is formed between the housing body (11) and in particular a housing flange (15) of the housing body (11) and the cover (17). The housing body (11) has a plurality of housing walls (12), which have such a low wall thickness (s) that the housing walls (12) would not withstand the pressure of an explosion in the interior (13). The housing body (11) is therefore reinforced by a reinforcing frame (30) arranged outside the interior (13). The reinforcing frame (30) has a ring frame part (31) that is arranged adjacently to the housing opening (14) and fully surrounds the housing body (11) in an annular fashion. In particular, the ring frame part (31) directly adjoins the housing flange (15).

The arrangement includes a pressure relief hatch for closing an opening in a wall in an electric cabinet, which. includes a body having an outer surface, an opposite inner surface, an outer perimeter, and a thickness. The body includes a centre portion with a first thickness, an intermediate portion with a second thickness, and an outer portion with a third thickness. The first thickness is greater than the third thickness and the second thickness decreases in a radially outward direction from the first thickness to the third thickness. A spring keeps the pressure relief hatch in a closed position in the opening during normal operation of the electric cabinet.

A distribution box includes a box body, a cover plate, and at least one guiding rail. The box body has several side plates and a base plate. An opening is formed by surrounding an end of each side plate. The base plate is connected to another end of each side plate. The cover plate is detachably engaged with the box body and closes the opening. The guiding rail is disposed inside the box body and has an open end facing toward the opening. At least one electrical accessory slides into the guiding rail from the open end and is engaged with the guiding rail. With the open end facing toward the opening, the electrical accessory could be easily disassembled and assembled without reserving an installation space at a position adjacent to the open end for providing other electrical accessories, which provides an effect of saving installation space.