Vacuum Interrupters

TJC-12/630-6.3AQ Vacuum interrupter
TJC-12/630-6.3BQ Vacuum interrupter
TJC-12/630-6.3CQ Vacuum interrupter
Rated parameters of vacuum interrupter

№	Parameter item		Unit	Value
1	Rated voltage		kV	12
2	Rated power-frequency withstanding voltage		kV	42
3	Rated lighting impulses withstanding voltage		kV	75
4	Rated frequency		Hz	50
5	Rated current		A	630
6	Rated short-time withstanding current		kA	6.3
7	Rated duration of short-circuit		s	4
8	Rated breaking current, max		kA	5
9	Rated breaking current, min		A	125
10	Rated making current	AC-3	kA	5
		AC-4	kA	6.3
11	Limited breaking current		kA	6.3
12	Working mode			Long-term duty type
13	Types			AC-3 AC-4
14	Electricity endurance	AC-3	Times	25×104
		AC-4	Times	10×104
15	Mechanical life		Times	30×104

Mechanical parameters of vacuum interrupter:

№	Parameter item	Unit	Value
1	Rated contact gap	mm	6
2	Contact closing force due to bellows and atmosphere	N	70±30
3	Counterforce of contact	N	110±30
4	Circuit resistance at contact force from atmosphere pressure	μΩ	≤150
5	Contact erosion permission length	mm	≤3
6	Moving part weight	kg	0.3

Mechanical parameters of Vacuum Interrupters for Contactor Applications

№	Parameter item	Unit	Value
1	Average breaking speed	m/s	0.7±0.3
2	Average closing speed	m/s	0.3±0.1
3	Rated operation pressure of contact	N	110±10
4	Bounce duration of contact closing	ms	≤2
5	Rebound amplitude of breaking contact	mm	≤2
6	Out of simultaneity of contact closing and opening	ms	≤1