Double Pole Relay Wiring Diagram. The 2 coil terminals is where the voltage is placed in order to energize the coil. The coil is an electromagnet that causes the arms that are always connected to the common 30 to pivot when energized whereby contact is made with the normally open terminals 87 and 87b.
Alternative style double pole switch wiring diagram. The next diagram figure 6 shows the relay with the coil energized. 2 pins are common 2 pins are normally close and 2 pins are normally open.
A double pole double throw relay comes with 8 terminal points.
Terminal descriptions coil this the is the coil terminal. Double pole throw dpdt wireless remote control switch for winch crane. It has 2 terminals and 4 connectors and you can look at the dpdt relay as the equivalent of 2 single pole double throw spdt relays. Relay can be the best option to control electrical devices automatically.