January 09, 2025

Hv Contactor Power Transmission/Distribution Auto Parts Indoor AC Vacuum Circuit Breaker

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Model NO.: VS1-12
Poles Number: 4
Type: Circuit Breaker
Function: Conventional Circuit Breaker
Certification: VDE, ISO9001-2000, CE, UL, CB, CCC
Rated Voltage: 12 Kv
Altitude: up to 3,000m Above Sea Level
Environment: Indoor
Special Conditions: Depends on The Customer
Rated Current: 630 a
Rated Short Time Continual Time: 4 S
Test Equipment: IEC Standard
Typical Products: Circuit Breaker
Frequency: 50 Hz
Warranty: 10 Years
Trademark: Tianan Electric
Specification: IEC60076-1, IEC60076-2, IEC60076-5
Origin: Xiangshan Zhejiang P. R China
HS Code: 8535210000

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
 
 
Hv Contactor Power Transmission/Distribution Auto Parts Indoor AC Vacuum Circuit Breaker
Hv Contactor Power Transmission/Distribution Auto Parts Indoor AC Vacuum Circuit Breaker
Hv Contactor Power Transmission/Distribution Auto Parts Indoor AC Vacuum Circuit Breaker

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