Specifications

electrical circuit breaker
1, AC 3 phase
2, Rated voltage :12KV
3,Rated operating order :O-0.3 S-CO-180 S-CO

Descriptions

     Indoor 12KV residual current electrical circuit breaker ZN63(VS1)-12

Applications

VS1-12 indoor high voltage vacuum circuit breaker is a indoor switch equipment of power system which rating tri-phase AC 50Hz, 12kV. 

Act as the protecting and controlling unit for grid equipments and industrial mining enterprises’ equipments .

 

Applicable to locations that need frequent operating in rated current or under repeatedly on/off shortcircuit current .

This breaker was designed as a unit which gathering actuator and circuit breaker main body, 

can be used for fixed mounting unit , also can be constituted as a withdrawable unit through outfit dedicated advancing mechanism.

  

This circuit breaker identified from the standard items of GB1984-2003 AC high voltage circuit breaker  , JB3855-1996 3.6-40.5kv indoor AC high voltage vacuum circuit breaker , DL403-91 Ordering technical conditions of 10-35kv  indoor AC high voltage vacuum circuit breaker and IEC56 .etc.. 

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Illustration of Model 

 

Technical Parameters  

No.	Item		Unit	Data
1	Rated voltage		KV	12
2	Hightest operating voltage		KV	12
3	Rated current		A	630,1000 1250	1250,1600,2000,2500	1250,1600,2000,3150	2000,2500,3150
4	Rated short-circuit breaking current		KA	20/25	31.5	40	50
5	Rated short-circuit closing current		KA	50/63	80	100	125
6	Rated peak withstand current		KA	50/63	80	100	125
7	4S rated short time withstand current		KA	20	31.5	40	50
8	Rated insulation level	P.F. withstand voltage(Before and after the rated breaking)	KV	42(Fracture 48)
		Impulse witstand voltage(Before and after the rated breaking)	KV	75(Fracture 84)
9	Rated operating order			O-0.3  S-CO-180 S-CO
10	Mechanical life		Times	20000
11	Rated short-circult breaking current breaking times		Times	50
12	Actuator Rated closing voltage(DC)		V	110,220
13	Actuator Rated opening voltage(DC)		V	110,220
14	Clearance between open contacts		mm	11±1
15	Supper Travel(Compressed length of contact springs)		mm	4±0.5
16	Non corresponding time period between tri-phase opening and closing		ms	≤2
17	Bounce time of closing contacts		ms	≤2
18	Average time of opening		s	≤0.05
19	Average time of closing		s	≤0.08
20	Opening time		ms	≤50
21	Closing time		ms	≤100
22	Main loop resistance of each phase		u Ω	≤40
23	Allowed accumination thickness between moving contact and static contact		mm	3

 

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Products display 

 

 

 

 

Specific elements and terminals , longer life , Withstand heavy duty .

Outline overall and Installing Demensions

 

 

 

 

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