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Knkong Electric Co.,Ltd

  • China,Zhengzhou ,Henan
  • Active Member

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China VCB 25KA 1250A Indoor Circuit Breaker With Embedded Pole
China VCB 25KA 1250A Indoor Circuit Breaker With Embedded Pole

  1. China VCB 25KA 1250A Indoor Circuit Breaker With Embedded Pole

VCB 25KA 1250A Indoor Circuit Breaker With Embedded Pole

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Payment Terms L/C, T/T, Western Union
Supply Ability 1000 Unit per month
Delivery Time 15 working days
Packaging Details Standard export packaging
Voltage 12KV 24KV
Current 630A 1250A 1600A 2000A
Breaking current 25KA
Type Fixed type
Standard GB,IEC,ISO
Manufactory KNKONG-ELECTRIC
Brand Name KNKONG
Model Number VS1-12
Certification CB,ISO,IEC
Place of Origin China

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C, T/T, Western Union Supply Ability 1000 Unit per month
Delivery Time 15 working days Packaging Details Standard export packaging
Voltage 12KV 24KV Current 630A 1250A 1600A 2000A
Breaking current 25KA Type Fixed type
Standard GB,IEC,ISO Manufactory KNKONG-ELECTRIC
Brand Name KNKONG Model Number VS1-12
Certification CB,ISO,IEC Place of Origin China
High Light 1250A Indoor Circuit Breaker25KA Indoor Circuit BreakerEmbedded Pole 12KV Circuit Breaker

VS1-12KV 1250A indoor VCB 25KA with embedded pole
Voltage: 12KV 24KV
Current: 630A 1250A 2000A
Breaking current: 20KA
Type: Fixed
 
 
Product overview
The VS1-12 series embedded vacuum circuit breaker produced by KNKONG-ELECTRIC is used for 12kV, 24KV three-phase AC 50Hz/60Hz indoor switchgear, it is the best protection and control unit for industrial and mining enterprises and substation equipment. The spring operating mechanism of the circuit breaker is a modular independent frame design, which is often used in KYN28-12 (24) fixed switchgear. These circuit breakers can be either fixed installation or can be used with a trolley when using the withdrawable version.
Technical Parameters

No.ItemUnitParameter
1Rated voltageKV12
2Rated frequencyHz50/60
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

63063012501600
1250125016002000
  20002500
  25003150
   4000
5Rated short-circuit breaking current

 

KA

202531.540
6Rated short-time withstand current202531.540
7Rated short-circuit marking current506380100
8Rated peak withstand current506380100
9Rated duration of short-circuit    s4
10Rated operating sequence O-0.3s-O/C-180s-O/C
11Breaking times of rated short-circuit currentTimes30/20 times(40KA)
12Mechanical enduranceOps20000
13Rated single capacitor bank breaking current

 

A

630
14Rated back-to-back capacitor bank breaking current400
15Double-earth fault breaking current27.4
16Allowable maximum contact erosion

 

mm

3
17Clearance between open contacts10±1
18Over stroke3.5±0.5
19Non-simultaneity of 3-phase opening and closing

ms

 

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

m/s

 

1.1±0.2
22Average making speed0.8±0.2
23Making time

ms

 

≤100
24Breaking time≤50

 

 

25

 
Resistance of each phase main circuit

 

μ Ω

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

 

27

Rated operating voltageRated operating voltage(V)AC/DC

 

V

24*110220
Scope of normal operation voltageOpening:65%-120% rated voltage, in case the voltage is lower than 30% rated voltage, opening operation is not allowed
28Rated voltage of energy storage motorVAC110/220,DC110/220
29Energy storage timeS≤15

 

 
 


















Company Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory
  • Business Type:

    Manufacturer

  • Year Established:

    2012

  • Total Annual:

    1000000-9000000

  • Employee Number:

    50~100

  • Ecer Certification:

    Active Member

Knkong Electric Co., Ltd (Zhengzhou Knkong Mechanical And Electrical Co., Ltd)was established in 2012. A wholly-owned subsidiary of Henan Sanhe Electric Group. We are mainly responsible for overseas market exporting, electronic components, and technology import.   Relying on a h... Knkong Electric Co., Ltd (Zhengzhou Knkong Mechanical And Electrical Co., Ltd)was established in 2012. A wholly-owned subsidiary of Henan Sanhe Electric Group. We are mainly responsible for overseas market exporting, electronic components, and technology import.   Relying on a h...

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  • Knkong Electric Co.,Ltd
  • No. 25 Street , Hanghai Road, Zhengzhou,Henan,China
  • https://www.mvlvswitchgear.com/

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