ZLJM-D DC Contactor - China Dongya Electronic

Why choose DONGYA?

Efficient power transmission - DC contactors can transmit electrical power with less loss compared to AC contactors.

Precise control - DC contactors offer better control over the motor's speed and torque, making them ideal for applications that require precise movements or positioning.

Longevity - With fewer moving parts than mechanical switches, DC contactors tend to have a longer lifespan.

Low maintenance - Because they have no contacts that wear out, DC contactors are less likely to require maintenance or replacement.

Quiet operation - DC contactors produce less noise during operation compared to AC contactors.

What is a DC contactor?

A DC contactor is a contactor whose iron core is controlled by a DC coil, and its load can be DC or AC. The iron core of the DC contactor is different from the AC contactor. It has no eddy current, so it is generally made of mild steel or industrial pure iron. Since the attracting coil of the DC contactor is connected with DC, there is no impact starting current, and there will be no violent impact of the iron core. Therefore, it has a long life and is suitable for frequent start-stop occasions.

How to choose a DC contactor?

The cost and availability of the contactor should also be considered, as well as any special features that may be required, such as built-in overload protection or low-noise operation. When selecting a DC contactor, the following factors should be considered.

Rated current: The rated current of the contactor should be suitable for the maximum current flowing through the electrical system.

Rated voltage: The rated voltage of the contactor should match the voltage level of the application.

Coil Voltage: The coil voltage should match the voltage levels available in the electrical system.

Duty Cycle: The duty cycle of the contactor should be appropriate for your application.

Environmental conditions: The contactor should be able to operate under the environmental conditions in which it is used.

Certification: Contactors should be certified to safety and environmental standards such as UL, CE or RoHS.