A DIN rail device mount system includes a base, a module and a locking mechanism. The base is configured to be mounted on a DIN rail. The base defines a receiver slot. The module is configured to be removably mounted in the receiver slot to form a DIN rail mount assembly. The locking mechanism includes: a lock member having opposed proximal and distal ends and including an integral lock member latch feature on its distal end, wherein the lock member is pivotally connected to the base at its proximal end to pivot between a closed position and an open position; and an integral module latch feature on the module. The DIN rail mount system is selectively positionable in each of: a locked configuration wherein the module is seated in the receiver slot, the lock member is in the closed position, and the lock member latch feature is interlocked with the module latch feature, whereby the lock member secures the module in the receiver slot; and an unlocked configuration wherein the lock member is in the open position, the lock member latch feature is not interlocked with the module latch feature, and the module can be withdrawn from the receiver slot.

The present invention relates to a trip device for a molded case circuit breaker and, more specifically, to an electronic trip device for a molded case circuit breaker. The electronic trip device for a molded case circuit breaker, according to one embodiment of the present invention, comprises: a trip part case having a plurality of phases; a trip part terminal provided at the rear surface part of the trip part case and provided for each phase; and a voltage sensing conductor coupled between the rear surface part and the trip part terminal and provided for each phase, wherein the voltage sensing conductor provided for each phase is formed to have the same shape and the same size.

Example embodiments relate to improved luminaire drivers. One embodiment includes a luminaire driver for driving a light module of a luminaire. The luminaire driver includes a driver housing. The driver housing includes a first and second power supply input connector element, for connection to an electrical distribution grid. The driver housing also includes output connector elements for connection to the light module. The luminaire driver also includes a driver circuitry arranged inside the driver housing, between the first and second power supply input connector elements and the output connector elements. The driver housing is provided with an equipotential connecting part available at an external surface of said driver housing and intended for being connected to an equipotential part of the luminaire. The luminaire driver further includes a resistive circuitry arranged inside the driver housing and connected between the equipotential connecting part and the first power supply input connector element.

A fusible switch disconnect device includes a housing adapted to receive at least one fuse therein, and a switchable contact for connecting the fuse to circuitry. A tripping mechanism and control circuitry are provided to move the switchable contact to an open position in response to a predetermined electrical condition.

Surge arrester structure is provided for a dead tank circuit breaker. The circuit breaker has a pole assembly with a first electrical terminal in a first bushing, and a second electrical terminal in a second bushing. The first terminal is electrically connected to a stationary contact and the second terminal is electrically connected to a movable contact. The surge arrester structure includes a surge arrester having first and second opposing ends. A first conductor structure electrically and mechanically connects the first end of the surge arrester with an end of the first terminal. A second conductor structure electrically and mechanically connects the second end of the surge arrester with an end of the second terminal. The surge arrester is electrically connected parallel with respect to the stationary and movable contacts so that the surge arrester can limit transient over voltages occurring across the contacts when the contacts are open.

Surge arrester structure is provided for a dead tank circuit breaker. The circuit breaker has a pole assembly with a first electrical terminal in a first bushing, and a second electrical terminal in a second bushing. The first terminal is electrically connected to a stationary contact and the second terminal is electrically connected to a movable contact. The surge arrester structure includes a surge arrester having first and second opposing ends. A first conductor structure electrically and mechanically connects the first end of the surge arrester with an end of the first terminal. A second conductor structure electrically and mechanically connects the second end of the surge arrester with an end of the second terminal. The surge arrester is electrically connected parallel with respect to the stationary and movable contacts so that the surge arrester can limit transient over voltages occurring across the contacts when the contacts are open.

Surge protection modules and switch bases separately provided from the surge protection modules facilitate plug-in installation and removal of the surge protection modules as well as disconnect switching capability to facilitate maintenance and service events in an electrical power system without de-energizing circuitry connected to the switch bases.

Surge protection modules and switch bases separately provided from the surge protection modules facilitate plug-in installation and removal of the surge protection modules as well as disconnect switching capability to facilitate maintenance and service events in an electrical power system without de-energizing circuitry connected to the switch bases.

The present invention relates to a coil actuator (1) for low and medium voltage applications, which comprises a electromagnet (2) operatively associated with a movable plunger (8), a power & control unit (3) electrically connected with said electromagnet (2) and first and second input terminals (T1, T2) operatively connected with said power & control unit, wherein an input voltage (VIN) is applied between said first and input terminals during the operation of said coil actuator.

The said power & control unit is adapted to provide subsequent launch pulses of drive current (IC) to said electromagnet (2), which are separated in time by at least a predetermined time interval (TI), in response to subsequent transitions of said input voltage (VIN) from values lower than said first threshold voltage (VTH1) to values higher than said first threshold voltage.

An electrical assembly comprising an electrical connector assembly that may include: a utility device comprising a plurality of pins; a socket attached to a cord, the socket comprising a plurality of receptacles to receive the plurality of pins; and one or more metal-oxide varistors (MOVs) disposed inside the socket, where the one or more MOVs are electrically connected to the plurality of pins when the plurality of pins are received by the plurality of receptacles.