1.14kv 400A Low Voltage Vacuum Switch for Mining (CKJ5)

• Electricity Type: AC
• Number of Pole: 3
• Phase: 3
• Main Circuit Rating Voltage: 1140V
• Main Circuit Rating Current: 400A
• Type: Ac Contactors
• Model NO.: CKJ5
• Main Circuit P.F. Withstand Voltage: 10kv
• Mechanical Life Time: 10000000 Times
• Short-Time Operating Frequency(20s): 2000times/H
• Clearance Between Open Contacts: 1.9-2.1mm
• Over Travel: 0.9-1.1mm
• Transport Package: Carton
• Trademark: VACEM
• Origin: Wenzhou, China

Product Description

1.General description

        This series vacuum contactor is suitable for power network AC 50Hz,the main circuit rated voltage 1140v,rated current up to 630A,for making,breaking,frequently staring and controlling AC motor,also for forming magnetic starer with a variety of protection devices(JDB electronic integrated protector,JR9 type over current protection device,resistance capacitance absorber),especially for forming anti-explosion magnetic starter.
    The contactor conforms to IEC 60947-4-1,GB/T 14048.4 and JB/TN 7122 standard,the main performance indicators have reached the international level.
"Y"means this product has coil operation mechanism type and permanent magnet operation mechanism type.Coil operation mechanism type is normally used.Customers can choose the suitable type according to the application. 

2.Main technical parameter
 

Item	Unit	63A	80A	125A	160A	250A	400A	630A
Main circuit rated voltage	kV	1.14
Main circuit rated current	A	63	80	125	160	250	400	630
Main circuit making capacity	A/100times	630	800	1250	1600	2500	4000	6300
Main circuit breaking capacity	A/100times	504	640	1000	1280	2000	3200	5040
Main circuit P.F. withstand voltage	kV	10
Electrical life AC3	Ten-thousand times	60
Electrical life AC4	Ten-thousand times	6
Mechanical life time	Ten-thousand times	100
Rated operating frequency AC3	times/h	600
Rated operating frequency AC4	times/h	120
Short-time operating frequency(20s)	times/h	2000
Clearance between open contacts	mm	1.5±0.1	1.8±0.1			2.0±0.1		2.2±0.1
Over travel	mm	0.8±0.1	1.0±0.1			1.0±0.1		1.0±0.1
Contact circuit P/F. withstand voltage	kV	2
Closing time	ms	≤100
Opening time	ms	≤80

3.Packaging


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4.International fairs


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