A contactor assembly post is provided. The contactor assembly post includes a first portion electrically connected to an external bus bar at an exterior of an electrical contactor housing, a second portion electrically connected to an internal bus bar at the exterior of the electrical contactor housing, a third portion and fins. The internal bus bar is configured to extend into an interior of the electrical contactor housing to be electrically coupled to another internal bus bar. The third portion extends transversely between the first and second portions. The fins extend transversely from multiple points defined along a longitudinal axis of the third portion.

A thermal management device for a circuit breaker includes: a heat pipe having an evaporator section, an adiabatic section and a condenser section; a busbar having a first portion including at least a portion of the adiabatic section of the heat pipe; a conducting busbar having a first end, a second end opposite the first end and a groove disposed on a top surface of the conducting busbar, the first end disposed adjacent to primary contacts, the second end integrated in the first portion of the busbar, the groove extending from the first end to the second end and including the evaporator section and the at least a portion of the adiabatic section of the heat pipe embedded therein; and an array of fins integrated to the second portion of the busbar, the condenser section of the heat pipe extending through the array of fins.

A three-position disconnector switch includes an earthing contact, a power out contact, a power in contact, a piston, and a threaded rod. A length of the piston is such that in a first switch position an outer surface of a wall of the piston makes an electrical contact between the power out contact and the power in contact. The length of the piston is such that in a second switch position the outer surface of the wall of the piston does not make an electrical contact with either the earthing contact or the power in contact. The length of the piston is such that in a third switch position the outer surface of wall of the piston makes an electrical contact between the earthing contact and the power out contact. The piston includes an inner threaded section configured to engage with the threaded rod.

A three-position disconnector switch includes an earthing contact, a power out contact, a power in contact, a piston, and a threaded rod. A length of the piston is such that in a first switch position an outer surface of a wall of the piston makes an electrical contact between the power out contact and the power in contact. The length of the piston is such that in a second switch position the outer surface of the wall of the piston does not make an electrical contact with either the earthing contact or the power in contact. The length of the piston is such that in a third switch position the outer surface of wall of the piston makes an electrical contact between the earthing contact and the power out contact. The piston includes an inner threaded section configured to engage with the threaded rod.

An exemplary contactor assembly includes, among other things, a moveable contact that moves back and forth between an electrically coupled position with a plurality of stationary contacts, and an electrically decoupled position with the stationary contacts. A support structure is configured to limit flexing of the moveable contact when in the electrically coupled position. An exemplary support method includes, among other things, transitioning a moveable contact from an electrically decoupled position to an electrically coupled position with a plurality of stationary contacts. The method further includes limiting a flexing movement of the moveable contact with a support structure.

A contactor assembly post is provided. The contactor assembly post includes a first portion electrically connected to an external bus bar at an exterior of an electrical contactor housing, a second portion electrically connected to an internal bus bar at the exterior of the electrical contactor housing, a third portion and fins. The internal bus bar is configured to extend into an interior of the electrical contactor housing to be electrically coupled to another internal bus bar. The third portion extends transversely between the first and second portions. The fins extend transversely from multiple points defined along a longitudinal axis of the third portion.

A contactor assembly post is provided. The contactor assembly post includes a first portion electrically connected to an external bus bar at an exterior of an electrical contactor housing, a second portion electrically connected to an internal bus bar at the exterior of the electrical contactor housing, a third portion and fins. The internal bus bar is configured to extend into an interior of the electrical contactor housing to be electrically coupled to another internal bus bar. The third portion extends transversely between the first and second portions. The fins extend transversely from multiple points defined along a longitudinal axis of the third portion.

A relay control method is provided for controlling an in-vehicle motor that includes a steering angle main control module. The main control module has a power supply relay is connected to a battery, a motor drive circuit connected to a fixed contact of the power supply relay via a bus bar, and a phase relay connected to the motor drive circuit via a bus bar. The motor drive circuit contacts a heat radiation part that has a higher thermal conductivity than the power supply relay. After the ignition is turned off and with the switches for the power supply relay and the phase relay remaining in the on state, a motor energization control is performed for maintaining a rotation stop state in the motor for a predetermined time, and after the predetermined time has elapsed, the switch of the power supply relay is switched to off.

An exemplary contactor assembly includes, among other things, a moveable contact that moves back and forth between an electrically coupled position with a plurality of stationary contacts, and an electrically decoupled position with the stationary contacts. A support structure is configured to limit flexing of the moveable contact when in the electrically coupled position. An exemplary support method includes, among other things, transitioning a moveable contact from an electrically decoupled position to an electrically coupled position with a plurality of stationary contacts. The method further includes limiting a flexing movement of the moveable contact with a support structure.

A connector assembly is provided for facilitating live connection of equipment in a switchgear. The assembly includes two circular plates, and conductive fingers which are arranged and spaced apart around the two plates to form a finger cluster with first open-end on a first cluster end and second open-end on an opposite second cluster end. Each open-end can receive a conductor therein. Each finger can include a first finger end and an opposite second finger end which form respective first and second cluster ends; two first interior grooves which are spaced-apart on an interior surface to receive a portion of respective plates; and first and second exterior grooves on an exterior surface around the first and second finger ends respectively. The assembly also includes first and second garter springs which are arranged around the fingers in respective first and second exterior grooves to apply a force against the fingers.