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ZN63 VS1 12kv 630A Indoor High Voltage Vacuum Circuit Breaker VCB

Basic Information
Place of Origin: XIAN, China
Brand Name: XG
Certification: ISO CCC
Model Number: ZN63
Minimum Order Quantity: 1set
Packaging Details: WOODEN CASE
Delivery Time: 3-7 DAYS
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 2000 SET
Detail Information
Rated Voltage: 3.6KV 6.6KV 7.2kV, 12kV, 24kv Rated Current: 400A 630A, 1250A, 1600A, 2000A, 2500A, 3150A,
Frequency: 50/60Hz Poles Number: 3
Phase: 3 Phase Medium: Vacuum
Material: Galvanized Sheet Standard: IEC/GB
High Light:

ZN63 Vacuum Circuit Breaker


VS1 Vacuum Circuit Breaker


Vacuum Circuit Breaker VCB

Product Description

1.  ZN63 Series vs1 12kv 630A indoor high voltage vacuum circuit breaker VCB


ZN63-12 type 11kv 12kv vacuum circuit-breaker serves in the three phase AC power system for rated volta ge of 10kV and rated frequency of 50Hz to switch various kinds of loads in frequent operation places and can be used to protect and control electrical equipment in the industrial &mineral enterprise and power plant and substation as well.


2. Product data


No. Item Unit Parameter
1 Rated voltage KV 12
2 Rated frequency HZ 50
3 Rated current A 630 1250 1250
4 Rated short circuit breaking current KA 20 25 31.5
5 Rated short circuit making current KA 50 63 80
6 Rated peak withstand current KA 50 63 80
7 4S rated short circuit withstand current KA 20 25 31.5
8 Rated insulation level Power frequency withstand (before and after rated breaking) KV 42 (opening distance 48)
Impulse withstand voltage (before and after rated breaking) KV 75(opening distance 85)
9 Rated operating sequence   O-0.3S-CO-180S-CO
10 Mechanical life time 10000
11 Rated short circuit breaks number time 50
12 Rated closing voltage of operating mechanism (DC) V 110,220
13 Rated opening voltage of operating mechanism (DC) V 110,200
14 Clearance between open contacts mm 11±1
15 Over travel (contact spring compressed length) mm 3.5±0.5
16 Opening and closing bounce time of three phases ms ≤ 2
17 Contact closing bounce time ms ≤ 2
18 Average opening speed m/s 1.1±0.2
19 Average closing speed m/s 0.6±0.2
20 Opening time Under max operating voltage S ≤ 0.05
21 Under minimum operating voltage S ≤ 0.08
22 Closing time S 0.1
23 Main circuit resistance of each phase μΩ 60 50
24 Allowed wearing thickness of moving and fixed contact mm 3


3. Application


Maximum temperature: +40℃; Minimum temperature:-25℃.

Altitude above sea level: Maximum installation altitude: 2500m.

Humidity: Monthly average humidity 95%; Daily average humidity 90% .

Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.

No frequent violent shake.


4. Photo and drawing




5. Factory


ZN63 VS1 12kv 630A Indoor High Voltage Vacuum Circuit Breaker VCB 1




ZN63 VS1 12kv 630A Indoor High Voltage Vacuum Circuit Breaker VCB 2


7. FAQ


1. Technology ensure the quality satisfy international request.

2.Generally we promise one - two years quality guarantee, some products will be extended longer time for life span.

3. For tender cooperation, it is welcome to discuss the detail in between.

4. Some type reports are provided accordingly.

5. Our factory is 250000m2 for production and office.

6. There are four subsidies in our group company. So our whole group company can produce switchgear, power transformer, load break switch, disconnect switch, vacuum/sf6 circuit breaker, fuse, surge arrester, CT PT, Metering unit.

Contact Details

Phone Number : +8613319220197

WhatsApp : +8613319220197