Relays
A relay is an electrically operated switch: a small current in its coil opens or closes contacts that carry a bigger load. Panel builders, automation and machine wiring teams, OEMs and dealers use a relay module or plug-in electrical relay to control motors, lamps, valves and alarms from PLCs and switches. Our electronic relay range is being updated, so
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contact us for current models and bulk supply. Meanwhile, see our SMPS power supply for control power and our cord end terminal range for neat wiring.
Electrical Relay Function and Applications
The main relay function is isolation: the control side and the load side stay electrically separate, so a low-voltage signal can safely switch a mains load. That is what a relay does in a starter panel, a lift controller or an inverter. Each application of relay types follows the same idea, from interposing relays between a PLC and a contactor, to time delay relays for sequencing, to relay modules on electronic boards.
Wire relay bases with ferrules crimped by a ferrule crimping tool, and mount them on rail cut with a din rail cutter. Each Ashwin Tools order carries 10-day returns, and electrical and automation dealers buying in volume can join our dealership programme.
Frequently Asked Questions
What is relay in electrical wiring?
An electrically operated switch that lets a small signal control a larger load.
What is the use of relay in a control panel?
To switch motors, lamps and valves from low-power control signals.
What is the purpose of a relay?
To isolate and switch a load circuit using a separate control circuit.
What is a relay module?
A relay mounted on a small board with terminals, ready to wire to a controller.
What is the relay price?
The relay price depends on type and coil voltage, and we share bulk quotes for larger orders.
