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Fuse Combination Vacuum Interrupter With 31.5 KA Short Circuit Breaking Current

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Name: Fuse Combination Vacuum Interrupter With 315 KA Short Circuit Breaking Current
Brand: ERFA
Price: 1 USD

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Specification

1	Rated Current	A	2500
2	Rated short-circuit breaking current	KA	31.5
3	Breaking operations of rated short circuit breaking current	Times	20
4	Rated short-time withstand current	KA	31.5
5	Rated duration of short-circuit	S	4
6	Rated peak withstand current	KA	80
7	Rated short -circuit making current	KA	80
8	Rated breaking current of single capacitor bank	A	630
9	Rated breaking current of back -to-back capacitor bank	A	400
10	Rated operating sequence	O-0.3S-CO-180S-CO

Mechanical data

1	Weight of movable parts	Kg	3.2
2	Closing force due to bellow and atmosphere	N	200±50
3	Force required to hold contacts open at full stroke	N	330±50

Mechanical requirements

1	Clearance between open contacts	mm	18±1
2	Average opening speed(average of first 75% of contact gap)	m/s	1.55±0.15
3	Average closing speed(average of last 30% contact gap)	m/s	0.7±0.2
4	Rated added external contact final force	N	3000±200
4	Rated added external contact final force	N	3000±200
5	Contact bouncing duration at closing operation	ms	≤3
6	Closing and opening non-simultaneity of three-phase contacts	ms	≤1
7	Maximum rebound during opening	mm	≤3

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vacuum fault interrupter

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