The difference between the DC contactor and the AC contactor

Promulgator : TAIXIDate : 2018-06-11Views : 100

DC contactor and AC contactor are all kinds of contactors, and are one of the important components in the automatic control system. There are some differences between the DC contactor and the AC contactor. What are the specific differences? The following Xiaobian came to introduce the difference between DC contactor and AC contactor for you.

Brief introduction of DC contactor:

The contactor uses a modular design to assemble the number of contact points required by the customer and the contact form (often open, closed and converted) required by the customer with the least parts. The series of products have high opening voltage and arc extinguishing with a horizontal blowing field. The maximum open voltage can be used for 220vdc. products to be applied to program controlled power or not Intermittent power supply system, forklift truck, electric vehicle, construction machinery system.

A brief introduction to the AC contactor:

AC contactor is widely used as power interruption and control circuit. It uses the main contact to turn on and off the circuit and use auxiliary contacts to execute the control instructions. The main contact is usually only a constant contact, and the auxiliary contact often has two pairs with constant and normally closed functions, and the small contactor is often used as the intermediate relay in conjunction with the main circuit. The contact of the AC contactor is made of silver tungsten alloy with good electrical conductivity and high temperature resistance.

The difference between the DC contactor and the AC contactor

DC contactor, the main circuit of the current is DC, generally less used, mainly used in precision machine tool DC motor control.

AC contactor, the main circuit of the current is AC, widely used, most of the electricity is alternating current.