Product Details

12KV high-proto type high altitude vacuum contactor

EVC8G series high-proto type high voltage vacuum contactor, selected the high-quality vacuum switch tube of the military factory. The structure is composed of metal frame and insulating bracket, which is firm and reliable, and the performance is more stable. The main circuit center can reach 190mm~210mm. The main circuit vacuum interrupter adopts solid-sealed structure, stable and reliable insulation performance, large creepage distance along the surface, large stroke and strong breaking capacity. It is suitable for plateau and high altitude of 4000 meters below sea level. It is used for remote access, analysis and frequent start and control of AC motors, transformers and capacitors in altitude area. There are two kinds of electromagnetic mechanism and permanent magnet mechanism.

Model recommended against altitude:

Altitude（m）	Model	Pole Distance(mm)
≤2000	EVC8C-12kv	165
2000～3000	EVC8G-12KV-T4（190）	190
3000～4000	EVC8G-12KV-T5（210）	210
4000～5000	EVC8C-24KV	250

Main electrical parameters:

Model	EVC8G-250A/12KV	EVC8G-400A/12KV	EVC8G-630A/12KV	EVC8G-800A/12KV	EVC8G-1000A/12KV
Rated voltage of the main circuit (kV)	12	12	12	12	12
Rated current of the main circuit (A)	250	400	630	800	1000
Closing capacity of the main circuit (A/100 times)	2500	4000	6300	8000	8000
Switching capacity of the main circuit (A/25 times)	2000	3200	5000	6300	6300
Breaking capacity limit (A/3 times)	4000	4500	6300	8000	8000
Mechanical life (ten thousand times)	100	100	100	100	100
Mechanical lock life (ten thousand times)	10	10	10	10	10
Electrical life (AC3) (ten thousand times)	25	25	25	25	25
Electrical life (AC4) (ten thousand times)	10	10	10	10	10
Power frequency withstand voltage of the main circuit (interrupted) (kV)	52/60	52/60	52/60	52/60	52/60
Phase-phase, phase-ground power frequency withstand voltage (kV)	52/60	52/60	52/60	52/60	52/60
Lightning impulse withstand voltage (kV)	85	85	85	85	85
Power frequency withstand voltage of the control circuit (kV)	2.5	2.5	2.5	2.5	2.5
Rated operating frequency (times/hour)	100	100	100	100	100
Mechanical lock operation frequency (times/hour)	120	120	120	120	120
Terminal pressure (N)	>100	>150	>150	>180	>180
Contact opening distance (mm)	7±0.5	7±0.5	7±0.5	7±0.5	7±0.5
Overtravel (mm)	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5
Contact resistance of the main circuit (μΩ)	≦200	≦150	≦100	≦150	≦100
Total weight (kg)	50	50	50	52	52