Principle of Operation
In this example, we will turn ON a lamp using switch S1 and Relays PDF a relay.
1. Relays datasheet Press S1 to turn
Relays it ON.
2. Current Relays PDF i flows to the operating coil and Relays datasheet magnetizes the core.
3. The armature is drawn to Relays PDF the core by the electromagnetic force.
4. When the armature reaches the core, the moving and fixed
contacts make contact and the lamp lights.
5. When S1 is released to turn it OFF, current no longer flows to the
operating coil, the electromagnetic force no longer exists, and the
armature returns to its original position by the force of the release
spring.
6. When the armature has returned to its original state, the contacts
become separated and the lamp turns OFF.
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