What is the difference between Contactor and Relay?

Relays: used for control circuits, low current, no arc extinguishing device, can operate under the action of electricity                                  or non-electricity, a relay often has several pairs of normally open / normally closed nodes, which can be used for                                    different control loops, its nodes cannot pass high current, generally not used in power circuits.

Contactor: Similar to a circuit breaker, it is used for the main circuit, has a large current, and has an arc extinguishing                    device. Generally, it can only operate under the action of voltage. In fact, the principle is the same, mainly because the                        contact capacity is different, the relay contact capacity is small, the contact can only pass a small current, which is                          mainly used for control, the contactor has a large capacity, and the contact can pass a large current, which is used for                     more main circuits.

The principle of the contactor is the same as that of the voltage relay, except that the load power controlled by the                                contactor is large, so the volume is also large. AC contactors are widely used as power interruption and control circuits.                        The relay is a small-signal control electrical appliance, which is used for motor protection or automatic control of various                   production machines.

The above is the difference between contactors and relays, as well as their respective structures and functions. I                          believe that you already have a general understanding of contactors and relays, so that when you choose, you can                       choose according to actual needs. Aokai rovides you with many selections of DC contactors, rating current from                          10amps to 600amps, coil voltage with 12V, 24V, 48V, and rating voltage from 12V-1500V.