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China ZW10-12XDG Series 12kV Dual Power Switch Device - Reliable Suppliers & Factory for High Voltage Solutions
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China ZW10-12XDG Series 12kV Dual Power Switch Device - Reliable Suppliers & Factory for High Voltage Solutions

Introducing the ZW10-12XDG Series, a state-of-the-art 12kV dual power switch designed for reliability and efficiency. Manufactured in China, this advanced switch features an intelligent controller that automatically toggles between primary and standby power sources during outages, ensuring uninterrupted electricity supply. Rated for up to 630A, it offers excellent high voltage isolation along with robust mechanical interlocking for enhanced safety. Perfectly suited for critical facilities, this product delivers reliable short-circuit and overcurrent protection in a compact design. As a trusted supplier and manufacturer in the industry, our factory guarantees the highest quality and performance for all your power management needs
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    Product Details

    Technical Specification

    No.

    Item

    Units

    Parameters

    1

    Rated voltage

    kV

    12

    2

    Max. operating voltage

    kV

    12

    3

    Rated current

    A

    630

    4

    Rated short-circuit load breaking current

    kA

    20

    5

    Rated short-circuit closing current (peak)

    kA

    50

    6

    Rated peak withstand current

    kA

    50

    7

    Rated short-time 1min. withstand current

    kA

    20

    8

    Rated insulation level

    1min PF withstand voltage (Dry type)

    kV

    42

    Lightning impulse withstand voltage (peak)

    75

    9

    Rated operating sequence

     

    O-0.3s-CO-180s-CO

    10

    Mechanical life

    Times

    10000

    11

    Off/On times of rated short-circuit breaking current

    Times

    30

    12

    Operator mechanism rated closing voltage

    V

    220

    13

    Operator mechanism rated opening voltage

    V

    220

    14

    Clearance between open contacts

    mm

    9±1

    15

    Over-travel

    mm

    3±0.5

    16

    Three phase opening, closing not synchronism

    ms

    ≤2

    17

    Contact closing bounce time

    ms

    ≤2

    18

    Average opening speed

    m/s

    1.0+0.2

    19

    Average closing speed

    m/s

    0.7±0.15

    20

    Closing time

    Max. operating voltage

    s

    0.015–0.05

    Min. operating voltage

    0.03–0.06

    21

    Closing time

    s

    0.025–0.05

    22

    The main loop resistance for each phase

    uΩ

    ≤180

    23

    Dynamic and static contact erosion limit

    mm

    3
    Product Model
    Product Model Diagram
    Frequently Asked Questions (FAQ)
    Q What is the rated voltage and maximum operating voltage of this product?
    Both the rated voltage and maximum operating voltage are 12 kV, making it suitable for medium-voltage distribution systems operating at or below this level.
    Q What is the rated current and short-circuit breaking capacity?
    The rated current is 630 A. The rated short-circuit load breaking current is 20 kA, and the rated short-circuit closing current (peak) is 50 kA, ensuring reliable performance under fault conditions.
    Q What is the mechanical life and short-circuit breaking operation life?
    The product offers a mechanical life of 10,000 operations. The number of off/on operations at rated short-circuit breaking current is 30 times, ensuring long-term durability and reliability.
    Q What are the insulation levels for this product?
    The rated insulation level includes a 1-minute power frequency withstand voltage of 42 kV (dry type) and a lightning impulse withstand voltage of 75 kV (peak), providing excellent dielectric protection.
    Q What are the operator mechanism voltage requirements?
    Both the rated closing voltage and rated opening voltage of the operator mechanism are 220 V, compatible with standard AC control power supplies commonly used in substations.
    Q What is the rated operating sequence of this product?
    The rated operating sequence is O – 0.3s – CO – 180s – CO, which is the standard auto-reclosing sequence for medium-voltage circuit breakers, ensuring safe and reliable fault recovery operation.