Number
A circuit-breaker in which the contacts open and close in air at atmospheric pressure.
A circuit-breaker in which the contacts open and close in air at atmospheric pressure.
A direct current power supply unit intended to supply stabilised DC electric power according to specified levels and tolerances.
A physical object that is an assembly of busbar, bus duct enclosure, busbar insulation mounts etc.
A physical object that is an assembly of busbar, bus duct enclosure, busbar insulation mounts etc.
A mechanical switching device that at regular intervals interrupts an electric current.
A heater in which electric energy is converted into heat for useful purposes.
A circuit-breaker in which the arc develops in a blast of gas.
A circuit-breaker in which the arc develops in a blast of gas.
A circuit-breaker in which the contacts open and close in oil.
A circuit-breaker in which the contacts open and close in oil.
An electric cable intended for transmission of electric power.
A physical object that is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.
A physical object that is a general term covering switching devices and their combination with associated control, measuring, protective and regulating equipment, also assemblies of such devices and equipment with associated interconnections, accessories, enclosures and supporting structures.
An ac power supply unit that maintains a continuous supply of electric power to the equipment it protects.
A circuit-breaker in which the contacts open and close within a highly evacuated envelope.
A circuit-breaker in which the contacts open and close within a highly evacuated envelope.
A physical object that consists of an electric motor and controller that is used to adjust the motor's operating speed.