VS1-12 VCB 25KA Breaking Fixed Circuit Breaker With 205mm Phase Spacing
Brand Name:KNKONG
Certification:CB,ISO,IEC
Model Number:VS1-12
Minimum Order Quantity:1
Delivery Time:15 working days
Payment Terms:L/C, T/T, Western Union
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Location:
Zhengzhou Henan China
Address:
No. 25 Street , Hanghai Road, Zhengzhou,Henan,China
Supplier`s last login times:
within 11 hours
Product Details
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Product Details
VS1-12 VCB 25KA Breaking fixed indoor circuit breaker with 205mm phase spacing
Voltage: 12-24KV
Current: max 2000A
Breaking current: max 25KA
Type: Fixed
Phase spacing: 205-310mm
Product overview
VS1 vacuum circuit breaker can perform frequent operations or break
short-circuit current multiple times within the working current
range; the mechanical life can be up to 30,000 times, and the
full-capacity short-circuit current breaking times can be up to 50
times.
VS1 vacuum circuit breakers are suitable for reclosing operation
and have extremely high operational reliability and service life.
VS1 vacuum circuit breaker (common type) adopts a vertical
insulating cylinder to prevent the influence of various climates;
and in terms of maintenance and maintenance, it is usually only
necessary to occasionally clean or lubricate the operating
mechanism.
The VS1 vacuum circuit breaker (pole type) adopts a solid
insulating structure-integrated solid-sealed pole, which realizes
maintenance-free.
The installation form of VS1 vacuum circuit breaker in the switch
cabinet can be either fixed or withdrawable, and can also be
installed on the frame for use
Normal service condition
| Altitude | ≤1000m | |
| Ambient temperature | Max | +40℃ |
| Min | -15℃ | |
Ambient humidity: Maximum average humidity | 24 hours ≤95% | |
| 1 month ≤90% | ||
| Maximum water vapor pressure | 24 hours ≤2.2kpa | |
| 1 month ≤1.8kpa | ||
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 | ||||||
VS1-12 VCB 25KA Breaking Fixed Circuit Breaker With 205mm Phase Spacing
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