CHINT AC contactor knowledge

Create Date: 2024-8-30 12:03:23|Source: CHINT/CHINT

CHINT AC contactor commonly used AC contactor, so what is AC contactor? Let's learn today.
CHINT AC contactor knowledge
  CHINT AC contactors usually use three arc extinguishing methods: double-fracture electric arc extinguishing, longitudinal seam arc extinguishing and fence arc extinguishing. It is used to eliminate the arcing generated when splitting and closing static contacts. Contactors above 10A have arc extinguishing devices. AC contactors also have auxiliary components such as reaction springs, buffer springs, contact pressure springs, transmission mechanisms, bases and binding posts.

AC contactor coils. The coils are usually identified by A1 and A2 and can be simply divided into AC contactors and DC contactors. We often use AC contactors, of which 220/380 volts are the most commonly used.

The main contact of the AC contactor. L1-L2-L3 is connected to the three-phase power supply, and T1-T2-T3 is connected to the power supply, which can be used to connect the load line. The main contact of the AC contactor is a normally open contact, which is mainly connected to the main circuit to control the start and stop of motors and other equipment.

Auxiliary contacts for AC contactors. Auxiliary contacts can be divided into NO and NC:

The normally open point NO, generally the normally open point NO is mainly used for the self-locking control of the contactor and the operation signal transmission.

AC contactor NC NC. Generally speaking, AC contactor NC NC is mainly used for circuit interlocking and signal transmission.

The above is the knowledge about CHINT AC contactors.

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