facebook twitter linkedin instagram
Inquiry
Leave Your Message
Products Categories
Featured Products
YB□12-0.4 Series Prefabricated Substation (European Type Substation)

YB□12-0.4 Series Prefabricated Substation (European Type Substation)
Three-phase incoming and outgoing lines Reactor

Three-phase incoming and outgoing lines Reactor
CKSG Series Low Voltage Series Reactor

CKSG Series Low Voltage Series Reactor
Mining Transformer /Integrated Protection Transformer

Mining Transformer /Integrated Protection Transformer
JSG Series Three-phase Dry-type Transformer (Servo Transformer)

JSG Series Three-phase Dry-type Transformer (Servo Transformer)
QZB Series Auto-coupling Reduced-voltage Starting Transformer

QZB Series Auto-coupling Reduced-voltage Starting Transformer
SG/ZSG/SBK Series Three-Phase Dry-Type (Rectifier) Transformer

SG/ZSG/SBK Series Three-Phase Dry-Type (Rectifier) Transformer
JMB/BJZ/DG/BZ(DM) Series Lighting & Hand Lamp Control Transformer

JMB/BJZ/DG/BZ(DM) Series Lighting & Hand Lamp Control Transformer
JBK5 Series Machine Tool Control Transformer

JBK5 Series Machine Tool Control Transformer
RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear

RM6 Fully Enclosed and Fully Insulated Gas-Insulated Ring Network Switchgear
SJKQ5-ATS-Switch-(1).jpg
SJKQ5-ATS-Switch-(2).jpg
SJKQ5-ATS-Switch-(1).jpg
SJKQ5-ATS-Switch-(2).jpg

China SJKQ5 ATS Dual Power Automatic Transfer Switch - 20A-3200A Suppliers & Factory for Reliable Power Solutions

Introducing the SJKQ5 ATS Dual Power Automatic Transfer Switch, a reliable solution for ensuring an uninterrupted power supply for critical systems in various industrial and commercial applications. Manufactured in China by trusted suppliers, this advanced switch supports load capacities ranging from 20A to 3200A at AC400V, featuring exceptional 500-800V insulation and 6-8kV impulse withstand capabilities, Designed for high-demand environments, the SJKQ5 ATS boasts rapid transfer times between 0.6 to 2.4 seconds, making it ideal for seamless transitions during power outages. Its multiple utilization categories (AC-33A/B/iB/CB) cater to diverse operational needs. With a short-circuit making capacity of up to 67kA and flexible control voltage options (DC24V-110V/AC220V), this transfer switch operates efficiently and reliably, The robust design, characterized by low power consumption (55-600W) and compact weight (3.4-67kg), ensures that the SJKQ5 ATS delivers dependable performance in backup power systems. As a leading factory in China, we are committed to providing high-quality products to meet the demands of our clients across the globe. Elevate your power solutions with the SJKQ5 ATS from our esteemed Chinese suppliers, designed for excellence in every operation
    Contact us
    Product Details

    Type Designation
    SJKQ5-Dual-Power-Automatic-Transfer-Switch-5
    1 Manufacturer Code
    2 PC-Class ATS
    3 Conventional Thermal Current (A)
    4 3: 3-Pole; 4: 4-Pole
    5 Automatic Transfer Switch
    6 ( ): B (Standard Type); Main-Backup, Auto-Transfer & Auto-Recovery
    Ⅰ: Utility-Utility, Auto-Transfer (Non-Recovery), Mutual Backup, Phase-Loss, Over/Undervoltage Protection
    Ⅱ: Utility-Utility, Auto-Transfer & Recovery, Phase-Loss, Over/Undervoltage Protection
    Ⅲ: Utility-Generator, Auto-Transfer & Recovery, Phase-Loss, Over/Undervoltage Protection
    7 "Y" indicates LCD display

    SJKQ5 Basic Model Simplified Diagram:

    SJKQ5-2
    Technical Parameters
    Rated Current (Ith) 20A 25A 40A 60A 80A 100A 125A 160A 250A 400A 630A 800A 1000A 1250A 1600A 2000A 2500A 3200A
    Rated Insulation Voltage (Ui) 500V 800V
    Rated Impulse Withstand Voltage (Uimp) 6KV 8KV
    Rated Operational Voltage (Ue) AC400V
    Rated Operational Current (Ie) AC-33A 20 25 40 60 80 100 125 160 250 400 630 800 1000 1250 1600 2000 2500 3200
    Utilization Category AC-33B AC-33iB   AC-33CB
    Rated Making Capacity 10le
    Rated Short-Circuit Making Capacity 8kA 26kA 67kA
    Rated Conditional Short-Circuit Current (Is) 50kA 70kA 100kA 120kA
    Rated Short-Time Withstand Current (Is) 5kA 12.6kA 32kA
    Transfer time Ⅰ - Ⅱ or Ⅱ - Ⅰ 2s 0.6s 0.6s 1.2s 1.8s 2.4s
    Control Voltage DC24V, 48V, 110V   AC220V
    Motor Power Consumption
    Rated Power Startup 300W 325W 355W 400W 440W 600W
    Normal Operation 55W 62W 74W 90W 98W 120W
    Weight (kg) - Class 4 3.4 3.4 3.4 3.4 3.4 3.4 6.0 6.0 7.6 15.8 16.8 36 36 37 38.6 55 61 67
    Product Display
    SJKQ5-Dual-Power-Automatic-Transfer-Switch-(1)
    SJKQ5-Dual-Power-Automatic-Transfer-Switch-(2)
    SJKQ5-Dual-Power-Automatic-Transfer-Switch-(3)
    SJKQ5-Dual-Power-Automatic-Transfer-Switch-(4)
    Outline and Installation Dimensions

    Rated Current (16A–1600A) Installation Diagram

    SJKQ5-4

    Rated Current (16A–1600A) Installation Dimensions

    Specification Overall Dimension Switch Installation Terminal Wiring
    A A1 B B1 C E G J K L N P R S T U AX Y Y1
    100A/3 260 227 106 103 134 134 115 201 84 7 83.5 30 14 18 2.5 103 6 41.5 93
    100A/4 280 247 106 103 134 134 115 221 84 7 83.5 30 14 18 2.5 103 6 41.5 93
    160A/3 330 266 135 134 261 208 166 245.5 78/108 7 87 36 20 25 3.5 134 9 56 141
    160A/4 360 298 135 134 261 208 166 278 78/108 7 87 36 20 25 3.5 134 9 56 141
    250A/3 366 310 170 134 261 208 166 290 78/108 7 87 50 25 30 3.5 134 11 60 145
    250A/4 416 360 170 134 261 208 166 340 78/108 7 87 50 25 30 3.5 134 11 60 145
    400A/3 455 378.5 240 230 333 270 166 358.5 180 11 103.5 65 30 40 5 208 11 83 193
    400A/4 515 438.5 240 230 333 270 166 418.5 180 11 103.5 65 30 40 5 208 11 83 193
    630A/3 455 378.5 260 230 333 270 160 358.5 180 11 103.5 65 40 50 5 208 13 83 194
    630A/4 515 438.5 260 230 333 270 160 418.5 180 11 103.5 65 40 50 5 208 13 83 194
    800A/3 887 513 312 250 370 321 470 489 220 11 85 120 60 56 8 250 13 107 252
    800A/4 1007 633 312 250 370 321 470 609 220 11 85 120 60 56 5 250 13 107 252
    1000A/3 887 513 312 250 370 321 470 489 220 11 85 120 60 56 8 250 13 107 252
    1000A/4 1007 633 312 250 370 321 470 509 220 11 85 120 60 56 8 250 13 107 252
    1250A/3 887 513 338 250 370 321 470 489 220 11 85 120 80 56 8 250 13 107 252
    1250A/4 1007 633 338 250 370 321 470 609 220 11 85 120 80 56 8 250 13 107 252
    1600A/3 887 513 338 250 370 321 470 489 220 11 85 120 80 69 10 250 13 108 253
    1600A/4 1007 633 338 250 370 321 470 609 220 11 85 120 80 69 10 250 13 108 253

    2000A–3200A Dual Input Single Output (2-in-1-out) Installation Diagram

    SJKQ5-6
    Specification A A1 B C G J O R S T V Y1 Y2 Y3
    2000A/4P 1080 800 460 542 540 523 610 80 81 10 30 113 121 113
    2500A/4P 1080 800 460 542 540 523 610 80 81 15 30 118 116 118
    3200A/4P 1080 800 460 542 540 523 610 80 81 20 30 123 111 123
    Frequently Asked Questions
    QWhat is the SJKQ5 Dual Power Automatic Transfer Switch (ATS)?
    The SJKQ5 is a PC-Class Automatic Transfer Switch designed to automatically transfer the electrical load between two power sources — such as utility-to-utility or utility-to-generator — ensuring uninterrupted power supply. It supports 3-pole and 4-pole configurations with rated currents ranging from 20A to 3200A.
    QWhat are the available operating modes for the SJKQ5 ATS?
    The SJKQ5 offers four main operating modes: (B) Standard Type with main-backup auto-transfer and auto-recovery; (Ⅰ) Utility-Utility auto-transfer without recovery with mutual backup and protection; (Ⅱ) Utility-Utility auto-transfer and recovery with phase-loss and over/undervoltage protection; and (Ⅲ) Utility-Generator auto-transfer and recovery with phase-loss and over/undervoltage protection.
    QWhat control voltage options are supported by the SJKQ5?
    The SJKQ5 supports multiple control voltage options including DC 24V, DC 48V, DC 110V, and AC 220V, providing flexibility for integration into various electrical control systems and environments.
    QWhat is the rated operational voltage and utilization category of the SJKQ5?
    The SJKQ5 operates at a rated voltage of AC 400V. Depending on the current rating, it falls under utilization categories AC-33B (for lower current models) and AC-33iB / AC-33CB (for higher current models up to 3200A), meeting international IEC standards for transfer switches.
    QDoes the SJKQ5 support an LCD display option?
    Yes. The SJKQ5 offers an optional LCD display variant. When the letter "Y" is included in the model designation, it indicates that the unit is equipped with an LCD display for enhanced monitoring and status indication.
    QWhat is the transfer time between power sources for the SJKQ5?
    The transfer time varies by current rating. For smaller models (20A–100A), the transfer time is 2 seconds. Mid-range models (125A–400A) achieve 0.6 seconds, while larger models transition through 1.2s, 1.8s, and up to 2.4 seconds for the highest current ratings (3200A), ensuring reliable and timely switching under various load conditions.