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GVC20-160A/250A/400A/630A/800A/1000A/1250A 1140V Vacuum Contactors

GVC20 series low-voltage vacuum contactor, fully sealed structure, power supply control modular design, coil structure sealing, dustproof, maintenance-free. This series of contactors is suitable for AC 50-60HZ, main circuit rated voltage is less than 1.6KV, rated current from 160A to 1250A in power network system, for long distance switching and breaking and frequent starting and controlling AC motor, transformer and capacitor Group and other occasions. This product has good interchangeability, stable and reliable performance, maintenance-free, and long service life. It is an ideal replacement for old-fashioned contactors. This product has two types: electric holding type and permanent magnet type.


Working Principle

The most important three parts for vacuum contactor are vacuum interrupter, electromagnetic operating mechanism and control circuit components.
When the vacuum contactor gets a control signal,the coil will be energized, static iron core generated electromagnetic force, which will pick-up the moving iron core, also the contact will be drived to run at the same time, because it is linked with the moving iron core. And then contact closed, the power get through. When the coil is deenergized, electromagnetic force dispeared, the moving iron core linking part will be separated because of the spring reactive force, and then the contact disconnect, the power is off.


Technical parameter GVC20-160A/1.14KV GVC20-250A/1.14KV GVC20-400A/1.14KV GVC20-630A/1.14KV GVC20-800A/1.14KV GVC20-1000A/1.14KV GVC20-1250A/1.14KV
Main circuit rated voltage (V) 1140 1140 1140 1140 1140 1140 1140
Main circuit rated current (A) 160 250 400 630 800 1000 1250
Main circuit making capacity (A/100times) 1600 2500 4000 6300 6300 8000 10000
Main circuit break-make ability (A/10times) 4000 4000 4000 5000 5000 6000 8000
Maximum break ability (A/3times) 5000 5000 5000 6300 6300 8000 10000
Electricity life AC3(times) 30 0000 30 0000 30 0000 30 0000 30 0000 30 0000 30 0000
Mechanical life (times) 100 0000 100 0000 100 0000 100 0000 100 0000 100 0000 100 0000
Rated operate frequency AC3 (times) 300 300 300 300 300 300 300
Clearance between open contacts (mm) 2±0.2 2±0.2 2±0.2 2±0.2 2±0.2 2±0.2 2±0.2
Over travel (mm) 1.0±0.2 1.0±0.2 1.0±0.2 1.0±0.2 1.0±0.2 1.0±0.2 1.0±0.2
Secondary control voltage (v) AC&DC:36V /110V /220V/380V or can be customized


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