DC Contactor is mainly used in the DC control circuit. It works as to connect and break of the circuit load, which can fully meet the special demand of electric locomotive, diesel locomotive and electric motor car group.
|Coil Rated Voltage (Optional)
||12V DC, 24V DC, 36V DC, 48V DC, 110V DC, 220V DC
|Contact Form (Optional)
||3 Pole (3NO)+1NO, 3 Pole (3NO)+1NC
||4 Pole (2NO+2NC)
|Rated Power (AC-3)
|Conventional Thermal Current
||47 x 76 x 115mm
||47 x 76 x 116mm
Tips: Difference between DC contactor and AC contactor
The difference between a DC contactor and an AC contactor is in the core and coil.
There is eddy current in the electromagnet core of AC contactor, so the electromagnet core is made to be stacked one by one. To prevent electromagnetic release at the moment of zero crossing, a short-circuit ring is added to the electromagnet core, the number of coil turns is small, the current is large, and the wire diameter is thick.
The electromagnet core of the DC contactor is an integral iron core with a slender coil and a particularly large number of turns. If the AC and DC contactors are connected incorrectly, the DC power is connected to the AC contactor, and the coil will burn immediately. The AC power is connected to the DC contactor, the contactor cannot be closed.