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GMC-85 AC Magnetic Contactor from GOTOELE is a three-phase low-voltage switching component designed for motor control, industrial machinery, pumps, compressors, HVAC equipment, and other applications requiring reliable switching of AC loads. With a 3-pole main contact structure, 135A AC1 thermal current rating, 45kW motor-control capacity at 380–440V, and 2NO+2NC auxiliary contacts, it provides a practical configuration for industrial control cabinets and electrical equipment.

Discover the key factors to consider when selecting a pushbutton with indicator light. A comprehensive guide covering electrical, environmental, mechanical, and visual specifications.

In modern industrial automation systems, electric motors are the core driving components of pumps, compressors, fans, conveyors, and production equipment. However, unexpected overloads, phase failures, and locked rotor conditions can cause serious motor damage, production downtime, and unnecessary maintenance costs.

An AC contactor is an automatic switching device that uses electromagnetic force to control the opening and closing of switches. Its core function is to frequently open and close high-power main circuits, while also providing low-voltage protection. The specific principles and functions are as follows:

The core function of an AC contactor is to achieve frequent switching of high-power circuits and provide low-voltage protection function. It is a crucial component in power automatic control systems, with specific functions and application scenarios as follows:

The wiring of AC contactors follows the basic idea of starting with the main circuit and then the control circuit. Depending on the coil voltage and control requirements, the wiring method may vary slightly. The specific steps are as follows: