A high speed arc suppressor and method include a first phase-specific arc suppressor configured to suppress arcing across contacts of the power contactor in a positive domain and a second phase-specific arc suppressor configured to suppress arcing across the contacts in a negative domain. First and second high speed switches are configured to enable and disable operation of an associated one of the first and second phase-specific arc suppressors. First and second drivers are configured to drive the first and second high speed switches.

A high speed arc suppressor and method include a first phase-specific arc suppressor configured to suppress arcing across contacts of the power contactor in a positive domain and a second phase-specific arc suppressor configured to suppress arcing across the contacts in a negative domain. First and second high speed switches are configured to enable and disable operation of an associated one of the first and second phase-specific arc suppressors. First and second drivers are configured to drive the first and second high speed switches.

An arc suppressing circuit configured to suppress arcing across a power contactor coupled to an alternating current (AC) power source having a predetermined number of phases, each contact of the power contactor corresponding to one of the predetermined number of phases includes a number of dual unidirectional arc suppressors equal to the predetermined number of phases of the AC power source. Each dual unidirectional arc suppressor includes a first phase-specific arc suppressor configured to suppress arcing across the associated contacts in a positive domain, a a second phase-specific arc suppressor configured to suppress arcing across the associated contacts in a negative domain, and a coil lock controller, configured to be coupled between a contact coil driver of the power contactor, configured to detect an output condition from the contact coil driver and inhibit operation of the first and second phase-specific arc suppressors over a predetermined time.

A sliding power contact and method includes a mobile load device connector and a socket. The mobile load device connector includes a non-current power pin having a first length, a current power pin having a second length less than the first length, a neutral pin, and a ground pin. The socket includes a non-current power contact configured to electrically couple with the non-current power pin, a current power contact configured to electrically couple with the current power pin, a neutral contact configured to electrically couple with the neutral pin, and a ground pin configured to electrically couple with the ground pin. An arc suppressor is directly coupled to at least one of the non-current power pin and the non-current power contact, wherein the arc suppressor, the non-current power pin and the non-current power contact form a current path between the current power pin and the current power contact.

A utilization unit of an electric switch includes an actuator module which includes actuators and power transmission apparatus to operate the electric switch, a power module which includes power supply means for the actuators of the actuator module, a control module which includes control means to control the power module, and data transmission means. The actuator module, the power module, and the control module constitute a modular structure, wherein the power module and the control module are detachably connected to each other and the actuator module so that the power module and the control module are both separately replaceable in the utilization unit.

An electrical control system, in particular for home automation systems, includes at least one electronic switching device including a switching module (10) which includes a switching circuit, including at least one controlled switch which allows a selective implementation of a switch configuration, a diverter configuration or an inverter configuration and a plurality of terminals which allow the connection of the switching module to an external electrical system.

The switching module allows selective application of the switch configuration of the switching circuit or diverter configuration of the switching circuit or inverter configuration of the switching circuit to terminals in a partial way, or total way, or to implement a total separation to said terminals.

An electromechanical relay is provided with a housing, a relay assembly within the housing, and a data collection cover enclosing the relay assembly within the housing. The data collection cover includes sensing members that extend in toward the relay assembly and engage disconnect switches of the relay assembly. The sensing members transmit analog signals to an analog-to-digital converter that converts analog signals to digital signals. The cover then stores, displays and/or communicates the digital information.

Provided herein is an improved bi-stable relay operable with a relay control circuit including a boost converter and an energy storage device, which is used to switch the bi-stable relay. In some embodiments, the bi-stable relay includes a solenoid wound with multiple coil windings. A conductive plate (e.g., a bus bar) may be coupled to a plunger of the solenoid, and is provided with contacts on each end of the conductive plate. The conductive plate is configured to electrically engage and disengage the solenoid upon respective application of power to the solenoid. The control circuit causes the solenoid to remain in an open position when selectively energized by a pulse for moving and retaining the conductive plate of the plunger against the solenoid for allowing wide operating voltage and reduced operating power.

A relay, includes a housing and multiple contact modules. An interior of the housing has an accommodation space, and each contact module includes a terminal assembly, a movable contact plate, and a drive assembly. The terminal assembly includes two terminals spaced apart and disposed on the housing. The terminal at least partially extends into the accommodation space to form a static contact. The movable contact plate is movably disposed in the accommodation space, and is configured to contact two static contacts to conduct the two terminals. The drive assembly includes a drive shaft and a drive unit that drives the drive shaft. The drive shaft is connected to the movable contact plate, and the drive unit is configured to drive the movable contact plate via the drive shaft. Multiple drive shafts corresponding to the multiple contact modules are disposed coaxially, and are relatively movable in their axial direction.

A terminal connection structure with a good material yield and high productivity, free of mounting failure. The terminal connection structure is provided with: a base including a terminal hole, a fixed contact terminal portion, a through hole passing through the fixed contact terminal portion along its shaft center and communicating with the terminal hole, and a conductive film formed in a continuous manner on an inner circumferential surface of the terminal hole, an inner circumferential surface of the through hole, and an exposed surface of the fixed contact terminal portion; and a touch piece press-fitted into the terminal hole and electrically connected to the fixed contact terminal portion via the conductive film.