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12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole

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12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole

12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole
12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole

Large Image :  12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole

Product Details:
Place of Origin: China
Brand Name: KNKONG
Certification: CB,ISO,IEC
Model Number: VS1-12
Payment & Shipping Terms:
Minimum Order Quantity: 1
Packaging Details: Standard export packaging
Delivery Time: 15 working days
Payment Terms: L/C, T/T, Western Union
Supply Ability: 1000 Unit per month

12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole

Description
Voltage: 12KV-24KV Current: 630A 1250A 2000A
Breaking Current: 25KA Type: Fixed
Standard: GB,IEC,ISO Manufactory: KNKONG-ELECTRIC
High Light:

12KV Indoor VCB Circuit Breaker

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Embedded Pole VCB Circuit Breaker

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VCB Circuit Breaker 25KA

12KV 1250A Indoor type vacuum circuit breaker with embedded pole

Voltage: 12KV 24KV

Current: 630A 1250A 2000A

Breaking current: 20KA

Type: Fixed

 

 

Product overview

VS1-series embedded pole. The vacuum circuit breaker is used for 12kV, 24KV three-phase AC 50Hz/60Hz indoor switchgear, and it is the best protection and control unit for industrial and mining enterprises and substation equipment. The spring operating mechanism of VS1 series circuit breaker is modular and independent frame design, suitable for KYN28-12 (24) central and fixed switchgear. These circuit breakers can either be fixedly installed or assembled with a hand push.

 

The VS1 series circuit breaker is easy to install, maintain, test and operate due to its modular structure. Compared with traditional circuit breakers, VS1 runs more stable, safer and has a longer service life. VS1 can meet 12kV and 24kV power transmission and distribution applications in power, energy, petrochemical, metallurgy, manufacturing, transportation, construction, environmental protection and other industries.

Technical Parameters

No. Item Unit Parameter
1 Rated voltage KV 12
2 Rated frequency Hz 50/60
3

 

Rated insulation level

1min power frequency withstand voltage(r. m. s)

 

KV

42(phase-to-phase, phase-to-earth)

48(across the isolating distance)

Lighting impulse withstand voltage (peak)

75(phase-to-phase, phase-to-earth)

85(across the isolating distance)

 

 

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 20 25 31.5 40
7 Rated short-circuit marking current 50 63 80 100
8 Rated peak withstand current 50 63 80 100
9 Rated duration of short-circuit     s 4
10 Rated operating sequence   O-0.3s-O/C-180s-O/C
11 Breaking times of rated short-circuit current Times 30/20 times(40KA)
12 Mechanical endurance Ops 20000
13 Rated single capacitor bank breaking current

 

A

630
14 Rated back-to-back capacitor bank breaking current 400
15 Double-earth fault breaking current 27.4
16 Allowable maximum contact erosion

 

mm

3
17 Clearance between open contacts 10±1
18 Over stroke 3.5±0.5
19 Non-simultaneity of 3-phase opening and closing

ms

 

≤2
20 Bounce duration of contact closing ≤2
21 Average breaking speed (instant breaking 6mm)

m/s

 

1.1±0.2
22 Average making speed 0.8±0.2
23 Making time

ms

 

≤100
24 Breaking time ≤50

 

 

25

 

Resistance of each phase main circuit

 

μ Ω

630A ≤50
1250A ≤45
1600A~2000A ≤35
≥2500A ≤25
26 Contact breaking bounce amplitude mm ≤2

 

27

Rated operating voltage Rated operating voltage(V)AC/DC

 

V

24* 110 220
Scope of normal operation voltage Opening:65%-120% rated voltage, in case the voltage is lower than 30% rated voltage, opening operation is not allowed
28 Rated voltage of energy storage motor V AC110/220,DC110/220
29 Energy storage time S ≤15

 

12KV 1250A Indoor Type VCB Circuit Breaker 25KA With Embedded Pole 0

 

 

Contact Details
Knkong Electric Co.,Ltd

Contact Person: Antonio

Tel: +8613607680651

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