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ZW18-40.5/T1250-2500/25-31.5 Outdoor Vacuum Circuit Breaker

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The ZW18-40.5/T1250-2500/25-31.5 outdoor vacuum circuit breaker is a high voltage product with the rated voltage of 40.5kV and the rated frequency of 50Hz.


This outdoor circuit breaker adopts a spring energy storage type operating mechanism produced on the basis of the technology introduced from German Siemens. The energy storage as well as opening and closing operations can be completed manually or electrically (AC or DC). The vacuum arc-extinguishing chamber imported from America's Westinghouse Company has extremely high breaking capacity.


Environmental Conditions
1. Altitude: ≤2,500m (special instruction should be given if customers want to use the outdoor vacuum circuit breaker in places with the altitude higher than 2,500m)
2. Ambient Temperature: -40℃~ 40℃
3. Wind Pressure: ≤700Pa (wind speed ≤34m/s)
4. Earthquake Intensity: ≤8degree
5. Ice Thickness: ≤10mm
6. External Insulation Pollution Level: IV (Minimum nominal creepage distance 33.5mm/kV)

ZW18-40.5/T1250-2500/25-31.5 Outdoor Vacuum Circuit Breaker

Technical Parameters
No Item Unit Parameter
1 Rated Voltage kV 40.5
2 Rated Power Frequency Withstand Voltage (1min) To Earth kV 95
Between Breaks 95
3 Rated Lighting Impulse Withstand Voltage To Earth kV 185
Between Breaks 185
4 Rated Frequency Hz 50
5 Rated Current A 1250
6 Rated Short-Circuit Breaking Current kA 31.5
7 Rated Peak Withstand Current kA 80
8 Rated Short-Time Withstand Current kA 31.5
9 Rated Short-Circuit Making Current kA 80
10 Rated Duration of Short Circuit s 4
11 Rated Operating Sequence O-0.3s-CO-180s-CO
12 Mechanical Life times 10000
13 Electrical Life times 20
14 Voltage of Open/Close Coil V DC 110 220
15 Current of Open/Close Coil A 2.5

BBE is a specialized outdoor vacuum circuit breaker manufacturer and supplier in China. We provide various types of products such as air circuit breaker, gas insulated switchgear, high voltage vacuum contactor, and distribution board.

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Links：https://globefindpro.com/products/45515.html
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