LS GMC-150 AC/DC contactors AC-DC-110V-220V

The applicable scope

The LS produced GMC AC contactor. This series of products is 50Hz or 60Hz for the alternating current,

and the rated insulation voltage is 660V. Under the AC-3 use category, the rated working voltage is 380V.

It is mainly used for remotely turning on and turning off the circuit, and is suitable for controlling the starting,

stopping, and reverse of the AC motor.

The applicable scope

The high-quality GMC AC contactor is used for 50Hz or 60Hz, and can be equipped with a special coil for

40-400Hz. The voltage can reach 660V, and the current can be up to 630A. It is used for turning on and turning

off the main circuit, and is suitable for the frequent starting and control of the motor. It can be matched with

various general-purpose electrical equipment such as relays, and can be used for various electrical equipment,

motors, and circuit controls. It can also be combined with auxiliary cutting tools, air delay headers, mechanical

interlocks, etc. to form a mechanical interlock contactor, a star-triangle starter, and can be combined with a

thermal relay to form a magnetic starter.

Rated current of the GMC AC contactor: 9A, 12A, 18A, 22A, 32A, 40A, 50A, 6*, 7*, 8*, 10*, 120A, 150A, 180A,

250A, 300A, 400A, 630A, 800A

The rated voltage of the contactor operating coil: 24, 48, 100, 110, 220, 240, 380, 400, 415, 440, 500, 550V

The GMC-100 static / dynamic contacts, GMC-125 static / dynamic contacts, GMC-150 static / dynamic contacts,

GMC-180 static / dynamic contacts, GMC-220 static / dynamic contacts, GMC-300 static / dynamic contacts,

GMC-400 static / dynamic contacts, GMC-600 static / dynamic contacts, GMC-800 static / dynamic contacts,

GMC-1000 static / dynamic contacts are in stock for supply / wholesale and retail. The reasons for the damage

of the contactor coil are as follows:

1.The voltage of the control power supply is on the low side, resulting in the control voltage at the terminals

of the coil wiring being on the low side. When the voltage is low to a certain extent, the iron core cannot be

attracted, and the current in the coil at this time is several times the normal maintenance current (the size

of the current depends on the voltage size), and after a long time, the coil will overheat and burn out due to

excessive heating.

​2.The control voltage at the terminals of the coil wiring is on the high side (> 1.1 * Us), which causes the coil to

overheat and burn out. For example, 380V voltage is applied to the 220V coil, and it will burn out in about 15

minutes, and the higher the voltage, the shorter the time required for the coil to burn out.

3.During the transportation and installation process, foreign objects fall into the contactor, resulting in the magnetic

circuit of the contactor coil not being closed, and the coil heats up and burns out.

Product features:

A variety of control voltage specifications of AC and DC coils are available for selection.

The product has a long service life and high reliability.

The accessories are complete and universal.

Both rail or screw installation are available, which is convenient to use.

The design of the anti-electrocution safety cover makes it safe to use.

The large and medium capacity (100-800A) contactor coils have the characteristics of AC and DC general use

and 110V-200V general use.

Usage and maintenance

The contactor is of protective type, and the action structure is direct acting type, and the contacts are double

break points, which have the characteristics of small size, light weight, low power consumption, long service life,

and high safety and reliability;

The contactor can form a mechanically reversible interlock magnetic starter, a star-triangle decompression starter,

and can also be selected according to the user to increase

Before installation, check the relevant technical data (such as rated voltage, current, operating frequency, etc.) to

see if it meets the requirements.

During installation, it should be installed according to the specified conditions. The terminal A1 of the contactor

coil should be facing upwards, which is in line with human visual habits.

For the contactor with a metal mounting base, it should be properly grounded.

The screw of the terminal should be tightened, and after checking that the wiring is correct, the attracting coil

should be powered on and switched several times before being put into use. The operation should be reliable after

the test.

If abnormal noise is found during use, it may be that there is dirt on the iron core pole surface. Please wipe the pole

surface clean.

During use, regular inspections should be carried out on various components of the product. If the moving parts are

not stuck, the fasteners are not loose, and if the components are damaged, they should be replaced in time.

Working conditions

The altitude does not exceed 2,000 meters;

The surrounding environment temperature: -5 ℃ ~ + 40 ℃

The air relative humidity: At 40 ℃, it does not exceed 50%, and at lower temperatures, a higher relative humidity

is allowed;

Atmospheric conditions: There are no mediums that cause explosion hazards, nor are there corrosive gases or

conductive dust and other gases that damage the insulation and short the circuit;

It should be installed in a place without significant shaking and impact vibration.

It should be installed in a place without rain and snow invasion.