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Electric Vacuum Interrupter 1600A 1250A For VCB Vacuum Circuit Breaker

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ERFA Industries Group

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Name: Electric Vacuum Interrupter 1600A 1250A For VCB Vacuum Circuit Breaker
Brand: ERFA
Price: 1 USD

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Specification

1	Rated current	A	1600	1250
2	Circuit resistance at lowest rated contact force	μΩ	≤20
3	Rated short-circuit breaking current	KA	31.5
4	Breaking operations of rated short circuit breaking current	Times	50
5	Rated short-time withstand current	KA	31.5
6	Rated duration of short-circuit	S	4
7	Rated peak withstand current	KA	60
8	Rated short-circuit making current	KA	60
9	Rated breaking current of single capacitor bank	A	630
10	Rated breaking current of back-back capacitor bank	A	400
11	Rated operating sequence	O-0.3s-CO-180s-CO

Mechanical data

1	Weight of movable parts	Kg	1.4
2	Closing force due to bellow and atmosphere	N	140±50
3	Force required to hold contacts open at full stroke	N	230±50

Mechanical requirements

1	Clearance between open contacts	mm	11±1
2	Average opening speed(average of first 75% of contact gap)	m/s	1.1±0.2
3	Average closing speed(average of last 30% of contact gap)	m/s	0.6±0.2
4	Rated added external contact final force		3100±200
4	Added external contact force at contact touch point	N	2200±150
5	Contact bouncing duration at closing operation	ms	≤2
6	Closing and Opening non-simultaneity of three-phase contacts	ms	≤2
7	Maximum Rebound during opening	mm	≤2

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