Model NO.: VS1 VBM7
Poles Number: 3
Type: Circuit Breaker
Function: Conventional Circuit Breaker
Certification: ISO9001-2000, CCC
Rated Voltage: 12kv / 24kv
Scope of Application: Indoor
Customized: Available
Brand: Stong
Vlotage: High Vlotage
Functions: for Switchgear
Trademark: Shentong
Transport Package: in Wooden Case
Specification: 40.5KV
Origin: Yueqing City
HS Code: 8535210000
    Advantages:          1.Our Company Has Great Reputation In Domestic Market.
          2.Good Quality Guaranteed With Reasonable Price.
          3.OEM, ODM Are Welcomed.
          4.Goods Will Be Delivered On Time.
          5.Factory Selling Directly
environmental conditions
1, ambient air temperature limit: +40 degrees, lower limit: -25 degrees
2, altitude is not more than l000m;
3, relative humidity is not greater than 95% daily average monthly value is not greater than 90%
4, the earthquake intensity is not more than 8 degrees;
5, no fire, explosion hazards, chemical corrosion and severe vibration of the place;
6, pollution level: level ii;
Technical Parameters
| Item | Unit | Parameter | ||||
| Rated Voltage | kV | 11/12 | ||||
| Rated Current | A | 630~1250 | 630~1250 | 630~1250 | ||
| Rated Short-circuit Breaking Current | kA | 20 | 25 | 31.5 | ||
| Rated Short-circuit Making Current | kA | 50 | 63 | 80 | ||
| Rated Peak Withstand Current | kA | 50 | 63 | 80 | ||
| 4s Rated Short-time Withstand Current | kA | 20 | 25 | 31.5 | ||
| Rated Insulation Level | 1min Power Frequency Withstand Voltage (crest) | kV | 65 | |||
| Lightning Impulse Withstand Voltage (peak) | kV | 125 | ||||
| Rated Operating Sequence | Â | O-0.3s-C O-180s-CO | ||||
| Mechanical Life | times | 10000 | ||||
| Rated Short-circuit Current Breaking Times | times | 50 | ||||
| Rated Closing Voltage of Operator (DC) | V | 110, 220 | ||||
| Rated Opening Voltage of Operator (DC) | V | 110, 220 | ||||
| Clearance Between Open Contacts | mm | 11± 1 | ||||
| Over travel of Contacts | mm | 3.5± 0.5 | ||||
| Three-phase Opening/Closing Synchronization | ms | ≤ 2 | ||||
| Closing Bouncing Time | ms | ≤ 2 | ||||
| Average Opening Speed | m/s | 0.9~0.12 | ||||
| Average Closing Speed | m/s | 0.4~0.8 | ||||
| Opening Time | Highest Operating Voltage | s | ≤ 0.05 | |||
| Lowest Operating Voltage | s | ≤ 0.08 | ||||
| Closing Time | s | 0.1 | ||||
| Main Loop Resistance of Each Phase | μ Ω | 60 | 50 | |||
| Total Thickness of Permissible Wear of Moving and Static Contacts | mm | 3 | ||||
Applying ambient conditions
1.Ambient temperature:-10ºC~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
4.Saturated vapour pressure:the average pressure of a day should be no more than 2.2kPa;the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire,explosion,serious filth,chemical erosion and violent vibration.
ATTENDING THE EXHIBITION
PLS FOLLOW LINKEDIN
| Â Joimmy Chow / Guanchu Tao |
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