Vs1-12 Series Indoor AC Vacuum Circuit Breaker

Model NO.: VS Operation: Energy-storage Type Arc-extinguishing Medium: Vacuum Structure: ACB Type: Circuit Breaker Certification: VDE, ISO9001-2000, CE, UL, CB, CCC Altitude: up to 3,000m Above Sea Level Special Conditions: Depends on The Customer Rated Short Time Continual Time: 4 S Typical Products: Circuit Breaker Warranty: 10 Years Specification: IEC60076-1, IEC60076-2, IEC60076-5 HS Code: 8535210000 Breaking Capacity: High Voltage Circuit Breakers Speed: Normal Type Circuit Breaker Installation: Fixed Poles Number: 4 Function: Conventional Circuit Breaker Rated Voltage: 12 Kv Environment: Indoor Rated Current: 630 a Test Equipment: IEC Standard Frequency: 50 Hz Trademark: Tianan Electric Origin: Xiangshan Zhejiang P. R China VS1-12 Indoor AC Vacuum Circuit Breaker
NINGBO TIANAN (GROUP) CO., LTD. General
VS1-12 (ZN63A) type indoor medium voltage vacuum circuit breaker is used as protection and control 
unit of three-phase AC indoor medium voltage Switchgear and industrial and mining enterprise power 
device of 50Hz and rated voltage up to 7.2~24kV. This products comply with IEC60694, IEC62271-100.
Specifications

No.	Description		Unit	Data
1	Rated voltage		kV	12
2	Rated insulation levels	Rated power frequency withstand voltage/1min ( phase to phase, phase to earth, open contacts)	kV	42
		Rated lighting impulse withstand voltage (phase to phase, phase to earth, open contacts)		75
3	Rated frequency		Hz	50
4	Rated current		A	630	630	1250	1600
				1250	1250	1600	2000
						2000	2500
						2500	3150
							4000
5	Rated short circuit breaking current		kA	20	25	31.5	40
6	Rated short time withstand current(4s)		kA	20	25	31.5	40
7	Rated short circuit making current		kA	50	63	80	100
8	Rated peak value of withstand current		kA	50	63	80	100
9	Rated operating sequence			O-0.3s-CO-180s-CO O-180s-CO-180s-CO
10	Rated short circuit breaking current breaking times		times	30/20(40kA)
11	Rated cable charge breaking current		A	25
12	Rated single capacitor bank breaking current		A	630/400(40kA)
13	Rated back to back capacitor bank breaking current			400
14	Mechanical life		times	10000
16	Allowed abrade cumulative thickness of moving and static contactor		mm	3
17	Clearance between open contacts		mm	11±1
18	Contact stroke		mm	3.5±0.5
19	Bounce duration of contact closing		ms	≤2
20	Non-simultaneity of three phase for opening and closing		ms	≤2

 
 

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