Number
A circuit-breaker in which the contacts open and close in air at atmospheric pressure.
A physical object that is intended to bring air to a specified quality.
A physical object that is an assembly of busbar, bus duct enclosure, busbar insulation mounts etc.
An electrical conductor that is of low-impedance, to which several electric circuits can be connected at separate points.
A physical object that is a number of capacitor units connected so as to act together.
A mechanical switching device that at regular intervals interrupts an electric current.
A switchgear and controlgear that is an insulated panel carrying terminals, fuses, etc, for controlling a number of subsidiary electrical circuits.
A heater in which electric energy is converted into heat for useful purposes.
A starter in which the force for closing the main contacts is provided exclusively by electrical energy.
A switch that turns electrical current on and/or off.
A physical object that by the fusing of one or more of its specially designed and proportioned components, opens the circuit in which it is inserted by breaking the current when this exceeds a given value for a sufficient time.
A circuit-breaker in which the arc develops in a blast of gas.
An electric cable, that is also an electric heater, with or without a shield or a metallic sheath, intended to give off heat for heating purposes.
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 circuit-breaker in which the contacts open and close within a highly evacuated envelope.