40.5kV Outdoor Vacuum Circuit Breaker ZW32
The ZW32-40.5 outdoor high-voltage vacuum automatic reclosing circuit breaker is a pole-mounted intelligent switch with a rated voltage of 40.5kV and a three-phase AC 50Hz frequency, specifically designed for 35kV outdoor power distribution lines. It adopts a fully enclosed integrated solid-seal pole structure and a fully sealed vacuum interrupter. The product comes standard with an intelligent reclosing controller, featuring PT power supply, current acquisition, overcurrent protection, instantaneous overcurrent protection, and zero-sequence protection functions. When a momentary excessive current occurs on the line, the circuit breaker will automatically reclose to restore normal line operation. The circuit breaker also has built-in isolation function. The rated current of the circuit breaker is 630A–1250A, and the short-circuit breaking current is 20kA, 25kA, and 31.5kA.A variety of current and voltage schemes are available.
Product Details
Feature
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- Solid Insulation: Utilizes an integrated epoxy resin solidified pole design, encapsulating the vacuum interrupter and conductive circuit as a single unit.
- Intelligent Design: Equipped with a dedicated intelligent controller, integrating overcurrent, instantaneous trip, zero-sequence, overload, and undervoltage protection functions. It features a built-in PT voltage drawdown device, eliminating the need for external auxiliary power, and simplifying installation and wiring.
- Environmentally Friendly: Compared to circuit breakers using SF6-filled gas, the ZW32's vacuum interrupter insulation is more environmentally friendly.
- Excellent Breaking Performance: Rated current ranges from 630A to 1250A, with a short-circuit breaking current up to 31.5kA, providing strong short-circuit withstand and fault breaking capabilities.
- Low Maintenance Costs: The circuit breaker has a mechanical life of up to 10,000 cycles, and the integrated design simplifies daily maintenance for workers.
- Ambient temperature: -25℃ ± 40℃
- Altitude: ≤1000m (high altitude can be customized)
- Relative humidity: Daily average ≤95%, monthly average ≤90%
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Environment: Dry indoor environment free from corrosive gases, severe vibrations, and flammable/explosive dust.
For customizing any other special sizes, please contact our salesman for more information.NO
Name
Unit
Data
1 Rated Voltage
kV
35/40.5
2 Rated Frequency
Hz
50
3 Rated Current
A
630/1250
4 Rated Short-Circuit Breaking Current
kA
20/25/31.5
5 Size
mm
1180×760 ×1380
6 Weight
KG
390
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