Sontuoec St1n 3p 4p AC Contactor

Structure and working principle

Structure: ST1N AC Contactor mainly consists of electromagnetic system (including iron core, coil and short-circuit ring, etc.), contact system (including main contact and auxiliary contact) and arc extinguishing device.

Working principle: When the coil of the ST1N AC Contactor is energized, the iron core generates a magnetic field, which attracts the armature and drives the contacts to act, so that the main contacts and auxiliary contacts are closed or disconnected, thus controlling the on-off of the circuit. Arc extinguishing device is used to extinguish the arc when the contacts are disconnected to protect the contacts from damage.

Types and Characteristics

1.Types:

ST1N AC Contactors can be categorized into a variety of types according to their use and performance, such as industrial contactors, building and household contactors. Common models include CJ series (e.g. CJX2 series, CJ20 series, CJT1 series) as well as series products of ABB, Siemens, Schneider and other brands.

2.Features:

Reliable work: ST1N AC Contactors have high work reliability and stability, and can withstand large currents and voltages.

Stable performance: its contact system is made of high-quality materials with good electrical conductivity and high-temperature abrasion resistance.

Convenient maintenance: ST1N AC Contactors have a compact structure and are easy to install and maintain.

Application Scenarios

ST1N AC Contactors have a wide range of applications in power systems, industrial automation, building and household electrics. For example, in the power system, it can be used to control the start-stop and direction reversal of the motor; in industrial automation, it can be used to control the start-stop of various electrical equipments on the production line; in the building and household electrics, it can be used to control the on/off of the equipments, such as lighting and air-conditioning.