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Handcart Indoor High Voltage Vacuum Circuit Breaker ZN63 VS1 24KV 275mm

Handcart Indoor High Voltage Vacuum Circuit Breaker ZN63 VS1 24KV 275mm

Indoor high voltage vacuum circuit breaker

Handcart high voltage vacuum circuit breaker

275mm electrical vacuum circuit breaker

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Product Details
Rated Current::
Rated Voltage::
24 KV
Payment & Shipping Terms
Minimum Order Quantity
1 set
Packaging Details
wooden packing
Delivery Time
5-10 days
Payment Terms
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability
10000 pcs/month
Product Description

ZN63(VS1)-24KV-275 Handcart indoor high voltage vacuum circuit breaker


ZN63 (VS1)-24 series indoor vacuum circuit breaker is an indoor high voltage equipment with rated voltage of 24kV and three-phase AC 50Hz. It is suitable for control or protection of power transmission and distribution systems such as power plants, substations and industrial and mining enterprises. The switch is especially suitable for high-altitude areas where important loads and frequent operations are interrupted.

The manufacture of circuit breakers complies with China's national standard GB/T1984-2003 "AC high voltage circuit breaker", DL/T403-2000 "3.6~40.5kV indoor vacuum circuit breaker ordering technical conditions" and related IEC standards, and has a reliable chain function. .

The operating mechanism of the circuit breaker is a spring energy storage type, which can be used for AC and DC energy storage operations, and can also be used for manual operation.

The circuit breaker can also be equipped with a long-life permanent magnet operating mechanism with a mechanical life of 20,000 times, which can be used in extremely frequent operation.

The circuit breaker is designed in the form of a front-rear assembly, which can be used both as a fixed installation unit and as a center-mounted unit in the chassis.


Enverenmental Conditions:

1. Ambient temperature: upper limit +40 ° C, lower limit -15 ° C;

2. Altitude: ≤3000m (if the altitude is increased, the rated insulation level will increase accordingly);

3. Amplitude: the seismic intensity does not exceed 8 degrees;

4. The daily average value of relative humidity of air is not more than 95%, and the monthly average is not less than 90%;

5. Locations without fire, explosion hazard, serious pollution, chemical corrosion and strenuous exercise.


The main technical parameters:

NO Item Units Technicial parameters
1 Rated voltage KV 24
2 Rated short-duration power frequency withstand voltage 65/79 (phase, ground/fracture)
3 Rated lightning impulse withstand voltage 125/145 (phase, ground/fracture)
4 Rated frequency Hz 50
5 Rated current A 630 1250

630 1250 1600

2000 2500 3150

630 1250 1600

2000 2500 3150

6 Rated short-circuit breaking current KA 20/25 31.5 40
7 Rated short-time withstand voltage 20/25 31.5 40
8 Rated short circuit duration S 4
9 Rated peak withstand current KA 50/63 80 100
10 Rated short circuit closing current 50/63 80 100
11 Secondary circuit power frequency withstand voltage (1min)   2000
12 Rated single / back to back capacitor group breaking current A 630/400(40kA:800/400)
13 Rated capacitor bank   12.5 (frequency is not more than 1000Hz)
14 Mechanical life KA 20000
15 Rated current breaking times (electrical life) 20000
16 Rated short circuit current breaking times 次/times 50(40kA≤30)
17 Dynamic and static contacts allow wear cumulative thickness mm 3
18 Energy storage time s ≤10
19 Contact opening distance mm 16±1
20 Overtravel 3.5±0.5
21 Contact closing bounce time ms ≤2(40kA≤3)
22 Three-phase split/closed period ≤2
23 Average opening speed (contacts are separated by -8mm) m/s 1.5±0.2
24 Average closing speed (8mm - contact closure) 0.8±0.2
25 Main conductive loop resistance μΩ



26 Rated operation sequence   0-0.3s-Co-180s-Co

Handcart Indoor High Voltage Vacuum Circuit Breaker ZN63 VS1 24KV 275mm 0Handcart Indoor High Voltage Vacuum Circuit Breaker ZN63 VS1 24KV 275mm 1Handcart Indoor High Voltage Vacuum Circuit Breaker ZN63 VS1 24KV 275mm 2




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