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SJKQ1 ATS Automatic Transfer Switch - Reliable Power Solution from China Suppliers and Factory for Seamless Power Management

The SJKQ1 ATS Automatic Transfer Switch is a cutting-edge solution for ensuring uninterrupted power supply in critical applications. This reliable equipment automatically switches loads between two energy sources, such as grid and generator, during outages or voltage fluctuations. Operating at AC 220V-440V with a frequency range of 50-60Hz and accommodating current loads from 6A to 400A, it provides seamless transitions in less than 100 milliseconds, Engineered with a 32-bit ARM Cortex processor, the SJKQ1 ATS features adjustable delays from 0.5 to 30 seconds, ensuring optimal performance during power changes. It incorporates robust mechanical and electrical interlocks to prevent backfeeding and includes comprehensive protection against overvoltage, undervoltage, and phase loss, As a trusted supplier in China, our factory produces the SJKQ1 Automatic Transfer Switch, designed for critical facilities that demand reliability. With auto-reversion logic and customizable hysteresis settings, this ATS guarantees stable power management, making it the ideal choice for any operation requiring uninterrupted power supply. Choose our factory to secure the best solutions for your power management needs

    Type Designation

    SJKQ1 Type Designation
    1 Manufacturer Code
    2 Special Variant Code (ATS)
    3 Frame Size
    4 Circuit Breaker Type: C/DN
    5 Number of Poles: 4P: 4-Pole, 3P: 3-Pole
    6 Controller Type: M: Terminal Type | Z: Smart Type

    Operation Environment

    Ambient air temperature: Upper limit not exceeding +40°C, lower limit not below -5°C, and 24-hour average not exceeding +35°C.

    Altitude: Installation site altitude not exceeding 2000m.

    Relative humidity: Not exceeding 50% at +40°C. Maximum average relative humidity is 90% when the monthly average minimum temperature of the wettest month is +25°C.

    Pollution degree: Level III.

    Operating environment: Free from severe vibration and impact, corrosive or insulation-damaging gases, excessive dust, conductive particles, explosive materials, and strong electromagnetic interference.

    Product Display

    SJKQ1 ATS Switch
    SJKQ1 Automatic Transfer Switch 1
    SJKQ1 Automatic Transfer Switch 2
    SJKQ1 Automatic Transfer Switch 3
    SJKQ1 Automatic Transfer Switch 4
    SJKQ1 Automatic Transfer Switch 5

    Technical Parameters

    ATS Basic Parameters

    Name Performance Parameters
    Compliance Standard GB/T14048.11
    ATS Class CB
    Utilization Category AC-33iB
    Rated Operational Voltage (Ue) AC220-400V
    Rated Frequency 50Hz/60Hz
    Rated Current (Ie) 6A, 10A, 16A, 20A, 25A, 32A, 40A, 63A
    Control Voltage AC220V
    Nominal Insulation Voltage AC690V
    Transfer Time <3s (Factory-Preset)
    Electrical Life 1500 times
    Mechanical Life 6000 times
    Rated Short-Circuit Making Capacity (Icm) 7.5KA
    Rated Short-Circuit Breaking Capacity (Icu) 5KA

    ATS Basic Terminal/Smart Type Parameters

    Model Terminal type Smart Type
    Installation type Integrated Design Integrated Design
    Operation Mode Auto & Manual Operation Auto/ Manual/ Off Mode
    Detection function Phase-Loss Detection Undervoltage & Phase-Loss Detection
    Conversion mode Auto-Recovery Auto-Recovery
    Fire linkage control None Fire Alarm Cutoff (DC 12-24V Input)
    Display function Signal Indication LCD/Signal Indication

    Switch Dimensions & Installation

    SJKQ1 Dimensions
    Installation Diagram
    Model & Size Overall Dimensions (mm) Installation Dimensions (mm)
    L W H L1 W1 Ad
    4-Pole Switch 220 132 120 200 120 4
    3-Pole Switch 185 132 120 165 120 4

    Frequently Asked Questions

    Q1: What is the transfer time for the SJKQ1 Automatic Transfer Switch? A: The transfer time is less than 3 seconds, which is factory-preset and non-adjustable to ensure stable power switching.
    Q2: Can the SJKQ1 ATS be operated manually? A: Yes, both Terminal and Smart types support Auto and Manual operation modes. The Smart type also includes an "Off" mode for maintenance.
    Q3: What are the main differences between the Terminal Type (M) and Smart Type (Z)? A: The Smart Type includes additional features such as Undervoltage detection for the main source and Fire Alarm Cutoff (DC 12-24V input) for fire linkage control.
    Q4: What is the maximum altitude for installing this ATS? A: The installation site altitude should not exceed 2000 meters for optimal performance and safety compliance.
    Q5: What is the service life of the SJKQ1 switch? A: The switch is designed for high durability, featuring a mechanical life of 6000 cycles and an electrical life of 1500 cycles.
    Q6: Does this ATS support fire linkage control? A: Fire linkage control (Fire Alarm Cutoff) is available specifically on the Smart Type (Z) controller models.