7.2kv High Voltage Four Poles Vacuum Contactor (VCKG3)

• Breaking Capacity: High Voltage Circuit Breakers
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Poles Number: 4
• Certification: ISO9001-2000, CE, CCC
• Model NO.: VCKG3
• Rated Operating Frequency: 300 Times/H
• Mechanical Life: 1000000 Times
• Over Travel: Min:1.2mm
• Opening Time: Max:120ms
• Closing Time: Max:150ms
• Transport Package: Carton and Pallet
• Trademark: VACEM
• Origin: Wenzhou, China
• HS Code: 8535900090

Product Description

1.General description

    This series contactor consists of electrical insulating frame,metal base,shaft and crank arm,electromagnetic systems,permanent magnet,power modules,auxiliary switches and vacuum interrupters.While control voltage goes across the electromagnetic coil,the armature drives the crutch rotating to open the main contact in the vacuum interrupter.Meanwhile,auxiliary switch cuts off power of electromagnetic coil,the armature drive the crutch rotating to open the main contact in the vacuum interrupter.Meanwhile,auxiliary switch cuts off power of electromagnetic coil,turns to be permanent-magnet maintenance.After power broke by control circuit,energy storage power of power module discharges to electromagnetic coil for degaussing,and the main contact broke under the function of opening spring.

2. Normal using conditions

a. Environment temperature : -5ºC~+40ºC, and average value is no more than +35ºC within 24 hour.
b. Altitude: no more than 1000m.
c. Atmospheric conditions: monthly highest humidity in the most wet month is no more than 90% and monthly average minimum temperature 
shall be 25ºC. Condensation on the products due to temperature changes shall be considered.
d. Impact vibration: The place is without extensive shaking, impact, and vibration.
e. The place is without explosion hazard, enchant gas and sleet.
f. No rain and snow in places
g. Pollution degree: Three grade
h. Installation type: .III
i. Installation condition: Slant angle between installation surface and vertical surface is no more than 15°. 

3.Main technical parameter
 

Item	Unit	VACG3-160~630/7.2-5				VACG3-160~630/12-5
Main circuit rated voltage	kV	7.2				12
Main circuit rated  current	A	160	250	400	630	160	250	400	630
Main circuit current making capacity	A/100times	1600	2500	4000	6300	1600	2500	4000	6300
Main circuit make-break capacity	A/25times	1280	2000	3200	5000	1280	2000	3200	5000
Maximum breaking capacity	A/3times	3200	3200	4000	6300	3200	3200	4000	6300
Mechanical life	times	1,000,000
Power frequency withstand voltage of main circuit	kV	32				42
Power frequency withstand voltage of auxiliary circuit	kV	2.5
Power frequency withstand voltage of control circuit	kV	2
Rated operating frequency	times/h	300
Opening time	ms	≤120
Closing time	ms	≤150
Clearance between open contacts	mm	4±0.5				5±0.5
Over travel	mm	≥1.2	≥1.2	≥1.2	≥1.2	≥1.2	≥1.2	≥1.2	≥1.2

4.Packaging

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