40.5kV Indoor Handcart Vacuum Circuit Breaker ZN85
The ZN85-40.5 indoor hand-operated vacuum circuit breaker is a switchgear adapted for 40.5kV (35kV) three-phase AC indoor power distribution systems, specifically developed to complement the KYN61-40.5 medium-voltage switchgear. The ZN85 vacuum circuit breaker adopts a three-dimensional modular layout with the operating mechanism at the bottom and the arc-extinguishing chamber at the top. It consists of three main parts: the operating mechanism unit, the vacuum arc-extinguishing chamber, and the hand-operated chassis unit. All three phases are independently insulated, with a standard phase spacing of 300mm. Rated currents cover 1250A, 1600A, and 2000A, and short-circuit breaking currents can reach 25kA and 31.5kA. A complete range of specifications are available.
Product Details
Feature
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Next: 40.5kV Outdoor Vacuum Circuit Breaker ZW32
- Five-proof function: Equipped with a mechanical five-proof interlock + electrical anti-pumping protection system, achieving forced interlocking and eliminating high-voltage misoperation.
- Manual push design: Utilizes a screw propulsion mechanism, ensuring smooth and effortless operation of the handcart, good self-locking, precise positioning, and stable switching between testing and working positions.
- Modular split mechanism: Adopts a modular design, allowing independent disassembly and replacement of the vacuum interrupter, spring mechanism, and handcart chassis, eliminating the need for complete machine return for repair and reducing maintenance costs.
- Independent insulation protection: Each three-phase circuit is equipped with an independent epoxy resin insulation cylinder, isolating the interrupter from live components for enhanced safety.
- Reliable vacuum interruption: Equipped with a 40.5kV vacuum interrupter, providing rapid arc extinguishing and faster, more precise fault cutoff.
- Ambient temperature: -25℃ ± 40℃
- Altitude: ≤1000m (high altitude can be customized)
- Relative humidity: Daily average ≤95%, monthly average ≤90%
-
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
630/1250/1600/2000
4 Rated Short-Circuit Breaking Current
kA
25/31.5
5 Size
mm
1480×860×1980
6 Weight
KG
680
Previous: 12kV Outdoor Pole-Mounted Vacuum Circuit Breaker ZW20
Next: 40.5kV Outdoor Vacuum Circuit Breaker ZW32
