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Switch is
Controlling accessory
Mounting accessory
Touch accessory
Holding accessory
Controlling accessory
An electrical switch is classified as a controlling accessory because its primary function is to make or break the electrical circuit, thereby controlling the flow of current to a load.
An electrical switch is classified as a controlling accessory because its primary function is to make or break the electrical circuit, thereby controlling the flow of current to a load.
P=VI тАФ Power controlled by switch
IbreakтАЛ=RarcтАЛVтАЛ тАФ Breaking current limit
The switch operates by physically moving a pair of contacts together (closing the circuit) to allow electron flow or separating them (opening the circuit) to create an air gap that acts as an insulator, stopping the current path.
Accessories are devices used to complete an electrical installation.
Controlling accessories include switches, regulators, and starters.
Mounting accessories include batten holders, ceiling roses, and conduit pipes.
IE Rules mandate that switches should generally be connected in the 'Phase' or 'Live' wire, never the Neutral.
Enables safe isolation of equipment for maintenance.
Prevents unnecessary power consumption.
Potential for arcing during switching operations.
Mechanical wear and tear over repeated cycles.
Domestic lighting control.
Industrial motor starting circuits.
Protection relay interface.
A switch is categorized under 'Electrical Installation Accessories' which are divided into: Controlling, Mounting, Holding, and Safety accessories.
Option B (Mounting) refers to items like boxes and clips. Option C and D are not standard classifications for electrical accessories.
A is correct тАФ A switch is a control device used to interrupt or redirect the flow of current in an electric circuit.
In competitive exams, always remember that switches are linked to the 'Control' function, while fuses and MCBs are linked to 'Safety' or 'Protection' functions.