4pdt Relay Diagram. All you need to do is confirm the no and nc pin out of your 4pdt and wire it the same way. This is the diagram below to learn all the pin terminals of a double pole double throw dpdt relay.
Wiring is dead simple. Place the relays rated coil voltage on these terminals. As you can see in the schematic the 12v battery or use other voltages is connected with the plus at terminal t1 and minus at terminal t2.
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Posted by pinkcardclubit on. By iot november 12 2021. How to wire a relay 5 pin and 4 pin bosch style. Dpdt relay wiring diagram.