Contactor and relay contacts can also be assigned to the extra-low voltage in terminal blocks. The terminal blocks should naturally be arranged under a power supply so that a supply voltage is available (see below)
This makes it possible to control the coil via the extra-low voltage, while the NOC controls a 230V wire.
It is also possible to control the coils of several relays and contactors with one wire, as shown in the following figure:
In this case, the terminals are configured as follows (first terminal +, second and third terminal with assignment to the relay/contactor coil).
Tip: you do not need to know what “type” the terminal needs to be. The moment it is assigned, the type is automatically maintained.
