Electronic Relay Circuit Diagram. The external control circuit consists of 230 volts ac power source is connected in series with the lamp and relays contact. Balanced unbalanced converter for audio work.
Here is a simple thermostat circuit that can be used to control a relay and supply power to a small space heater through the relay contacts. Circuit diagram components required 12v relay 1 tip122 1 1n4728a 33v zener 1 100 kω pot 1 1kω 3 330ω 1 1000µf 25v 1 100µf 25v 1 1n4007 1 leds 2 circuit design of time delay relay a 1kω resistor a 100kω variable resistor and another 1kω resistor are connected in series between the supply and ground. Relays control one electrical circuit by opening and closing contacts in another circuit.
The schematics do not show placement or scale merely function and flow.
The relay contacts should be rated above the current requirements for the heater. It can be used for various switching. Basically it is an electronic circuit built with relays transistors diodes resistors. When power flows through the first circuit 1 it activates the electromagnet brown generating a magnetic field blue that attracts a.