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Hebei Box-Type Transformer Co., Ltd.

China Manufacturer with main products: Box-Type Sub-Section Posts, Box-Type Transformer Substations, Fuse Switches, High and Low-Voltage Cable Branch Boxes, High Voltage RMU, Low...

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Overhead Switches

FOB Price: 1.00 - 2.00 USD/Box
In Stock
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Quick Details

  • Safety Standards: IEC
  • Breaking Capacity: Low
  • Usage: High Voltage
  • Brand Name: BEINENG
  • Material: porcelain

Specifications

Feature:the contact distance is small, the contact distance of the 10KV vacuum circuit breaker is only about 10mm, the operating mechanism of the operating mechanism is small, the mechanical part of the trip is small, and the mechanical life is long.
the arcing time is short, and it has nothing to do with the switching current.
after the arc quenching, the contact gap medium recovery speed is fast, and the fault performance is good.
Due to the small amount of wear and tear when the current is opened, the electrical life of the contact is long, the full capacity is broken up to 30-50 times, the rated current is broken up to more than 5000 times, and the noise is small, and the utility model is suitable for frequent operation.
Small size, light weight.
It is suitable for breaking capacitive load current.
Because of its many advantages, it is widely used in substations, the current models are: ZN12-10, ZN28A-10, ZN65A-12, ZN12A-12, VS1, ZN30, etc..
Specifications:Parameter name unit type
ZN28-12/1250-20 ZN27-12/1250-31.5 ZN27A-12/3150-40
Voltage parameters
Rated voltage kV 10
Maximum voltage 11.5
Insulation level
Power frequency withstand voltage, pole to ground 42
Fracture room 48
Impulse withstand voltage, pole to ground 75
Fracture room 84
Current parameter rated current A 125012503150
Rated short-circuit breaking kA 2031.540
Rated peak withstand current kA 5080100
4S short-time withstand current kA 2031.540
Rated short-time closing current (peak) kA 5080100
Rated single capacitor bank breaking current A 630800
Rated back-to-back capacitor bank breaking current A 400400
Rated short-circuit breaking current 505030
Mechanical life 10000
Other rated operation sequence is divided into -0.5s- and -180s- -180s- and -180-
Full opening times less than 60
with operating mechanism CD or CT mechanism
Overhead switches

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