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ZN63 Embedded 24KV Vacuum Circuit Breaker 12kv 630A-4000A

ZN63 Embedded 24KV Vacuum Circuit Breaker 12kv 630A-4000A

Embedded 24KV Vacuum Circuit Breaker

ZN63 24KV Vacuum Circuit Breaker

4000A 12kv vacuum circuit breaker

Place of Origin:

Zhejiang, China

Brand Name:

Eberry

Certification:

CE,CQC,ISO9001

Model Number:

ZN63-24KV-275

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Product Details
Type:
High Voltage, Vcb-24
Poles Number:
3
Rated Voltage:
24KV
Rated Frequency:
50/60hz
Product Name:
High Voltage Vacuum Circuit Breaker
Rated Current:
630A ~ 4000A
Breaking Capacity:
20KA~40KA
Rated Frequency:
50/60 Hz
Mechanical Life:
20000Times
Certificate:
ISO9001
Standard:
IEC60947-2
Phase-to-phase Spacing:
275mm
Port:
Ningbo Or Shanghai
Payment & Shipping Terms
Minimum Order Quantity
1 set
Packaging Details
Plywood BOX
Delivery Time
5-10 days
Payment Terms
L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability
10000 Unit/Units per Month
Product Description
ZN63 12kv 24kv 630A-4000A Embedded 24KV Vacuum Circuit Breaker
 

VCB-24 series solid-sealed indoor vacuum circuit breaker is an indoor high-voltage switchgear for three-phase power system with rated voltage of 24kV and frequency of 50 Hz. It is used as protection and control appliance due to vacuum circuit breaker. The special advantages are especially suitable for frequent operations requiring rated current or multiple short-circuit currents.

VCB-24 series solid-sealed indoor vacuum circuit breakers are fixedly mounted, mainly used for fixed switchgear. The circuit breaker can be used alone or in ring power supply, box transformer or various non- power supply system.

Product 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 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

≤50(630A)≤45(1250A)

≤40(1600,2000A)≤35(2500A)

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

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