Contactors are automation devices necessary in the process of growing plants (sensors, timers, time switches, thermostats) have one common vulnerable node: a contact group.
With the intensive use of heating devices, lighting systems, contactors can burn and fail. We recommend controlling a powerful load (1 kW or more) not directly, but using contactors (magnetic starters). They have powerful working contacts, consume low electrical power, can be easily disassembled for repair, if necessary, and are relatively inexpensive.
The contactor can control four independent electrical circuits.