Knkong Electric Co.,Ltd
| 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 2000A |
| Breaking current | 25KA |
| Type | Fixed |
| Standard | GB,IEC,ISO |
| Manufactory | KNKONG-ELECTRIC |
| Brand Name | KNKONG |
| Model Number | VS1-12 |
| Certification | CB,ISO,IEC |
| Place of Origin | China |
View Detail Information
Explore similar products
20KA Alternating Withdrawable VCB Circuit Breaker 12KV
Embedded Pole VCB Circuit Breaker 2000A 12KV For Transformer Substation
2000A 12KV Withdrawable Circuit Breaker Modularized Mechanism
Fixed Type 205 Phase Spacing VCB Circuit Breaker Environmental Protection
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 2000A |
| Breaking current | 25KA | Type | Fixed |
| Standard | GB,IEC,ISO | Manufactory | KNKONG-ELECTRIC |
| Brand Name | KNKONG | Model Number | VS1-12 |
| Certification | CB,ISO,IEC | Place of Origin | China |
| High Light | 12KV Indoor VCB Circuit Breaker ，Embedded Pole VCB Circuit Breaker ，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 | ||||||
Company Details
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...
Get in touch with us
Leave a Message, we will call you back quickly!