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Vacuum Interrupter HCJ3 7.2KV 400A for vacuum contactor from JUCRO Electric

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Vacuum Interrupter HCJ3 7.2KV 400A for vacuum contactor from JUCRO Electric

Vacuum Interrupter HCJ3 7.2KV 400A (JUC510A) for vacuum contactor from JUCRO Electric

Product Detail

Vacuum Interrupter HCJ3 7.2KV 400A for vacuum contaCTor from JUCRO Electric

Brief introduction

The vacuum interrupter adoption porcelain and ceramics makes to insulate the outer shell. Contact is WCCu metal alloy material advanced technique of adoption Including bulk small. Breaking the abiliting strong the life span is long maintenance is simple .no explosion dangerous no contaminate and the noise is low . The pack Vacuum Contactor can operate the ebery kind of electric appliances equipments, and fuse match f-c cabinet

Vacuum Tube main technique parameter

No.	Parameter name	Unit	Value
1	Rated voltage	kV	7.2
2	Rated current	A	400
3	Rated frequency	Hz	50
4	Rated making current	kA	4
5	Rated breaking current	kA	3.2
6	Limiting breaking current	kA	4
7	Rated short-time withstand current	kA	3.2
8	Rated short-time withstand voltage	kV	32
9	Rated lighting impulse voltage	kV	60
10	Circuit resistance at lowest rated contacts force	μΩ	≤80
11	Electrical life	Times	250000
12	Mechanical life	times	500000
13	Closing force due to bellows and atmosphere	N	70±20
14	Force required to hold contacts open at full stroke	N	100±30
15	Limiting abrasion of contacts	mm	3
16	Internal gas pressure	Pa	≤1.33×10^-3
17	Storage life	years	20

Vacuum Contactor technical specifications

No.	Parameter name	Unit	Value
1	Clearance between opening cantacts	mm	5±1
2	Contacts travel	mm	2±0.5
3	Average opening speed	m/s	0.6±0.2
4	Average closing speed	m/s	0.3±0.1
5	Rated contacts pressure	N	110±20
6	Contacts bouncing duration at closing operation	m/s	≤2
7	Closing synchronism	m/s	≤2
8	Contacts re-bouncing duration at opening operation	mm	≤1.5