Automatic Transfer Switch Q Series

Automatic and Electric Transfer Switch: ZSEE Q series integrates switching and logic control, requiring no external controller to achieve electromechanical automation. It features voltage detection, frequency detection, communication interface, fire feedback, electrical and mechanical interlocks, and can perform automatic, electric remote, and emergency manual control.

Operation is managed by a logic control board that sends various logic commands to control the motor and gearbox operation. The motor drives the switch spring’s energy storage and releases it instantly through an acceleration mechanism to quickly connect or disconnect circuits or switch between circuits. This creates a clearly visible state that ensures safe isolation, greatly improving electrical and mechanical performance.

Switches below 100A are designed with a compact and robust metal housing. For switches above 100A, the control part uses a metal housing with automatic and electric control modes, while the switch housing is made of unsaturated polyester glass fiber-reinforced molded plastic, offering strong dielectric performance, protection, and reliable operational safety.

The switch is suitable for automatic switching between the main and backup power supplies of power systems or between two load devices and for safe isolation. The switch design is aesthetically pleasing, simple, and compact.

Compliance Standards

International Standards

IEC 60947-1 “Low-voltage switchgear and controlgear – Part 1: General rules”

IEC 60947-3 “Low-voltage switchgear and controlgear – Switches, disconnectors, switch-disconnectors, and fuse-combination units”

IEC 60947-6-1 “Low-voltage switchgear and controlgear – Multifunctional switchgear – Automatic transfer switching equipment”

National Standards

GB 14048.1 “Low-voltage switchgear and controlgear – General rules”

GB 14048.3 “Low-voltage switchgear and controlgear – Switches, disconnectors, switch-disconnectors, and fuse-combination units”

GB/T 14048.11 “Low-voltage switchgear and controlgear – Part 6-1: Multi-function devices – Transfer switching equipment”

Certification

The ZSEEQ series automatic transfer switch is certified through self-declaration and EAC certification.

Environment and Applications

Operating Environment:

  1. Altitude does not exceed 2000 meters;
  2. Ambient temperature not higher than +40℃, not lower than -5℃;
  3. Relative humidity does not exceed 50% at +40℃;
  4. Special measures should be taken to prevent condensation due to occasional temperature changes;
  5. No explosive hazardous media environment, no exposure to rain or snow;
  6. Pollution level is Grade 3.

Applications:

AC 50Hz, rated operating voltage 380V, and rated current 16A to 3150A. Designed for infrequent switching on and off of circuits. For special requirements, please contact the company.

Model Explanation

Product Function Comparison Table

Functional Type Codes

Electrical and Mechanical Performance

Product Description

  1. The ZSEEQ series is rated as PC-level electrical equipment;
  2. The switch is available in two-pole (for Q1 series only), three-pole, and four-pole (three-pole + switchable neutral pole) versions;
  3. The product features visualization, digitization, and networking capabilities;
  4. Remote fire reset is available, and emergency zero reset can cut off both power sources simultaneously;
  5. Offers three operation modes: automatic, electric, and manual, with clear on/off position indicators and lockout features;
  6. Includes fire feedback functionality.

Product Features Description

  1. LED Display: Shows phase voltage, line voltage, frequency, and other parameters;
  2. Operation Buttons: Set and modify parameters such as voltage, frequency, query, conversion time, over/under-voltage, etc.;
  3. Working Status Indicator: Simulates the on-site circuit, displaying the status of the main and backup power supplies and their operating positions;
  4. Working Mode Switch Lock: Lock pressed for manual operation, released for automatic operation;
  5. Switch Status Indicator: I indicates the main power is on; 0 indicates both power sources are off; II indicates the backup power is on;
  6. Zero Position Lock: When the switch is in the 0 position, it can be locked via the handle lock to prevent misuse.

Secondary wiring terminals and communication interfaces on the switch’s side allow for remote operation, fire reset, signal transmission, and network connectivity.

Product Characteristics

  1. Phase Angle Detection Technology

Balanced three-phase load is essential for safe power supply. Unbalanced three-phase load can reduce the efficiency of power lines and distribution transformers, and in severe cases, may lead to serious consequences like wire burnout, switch damage, or transformer single-phase burnout.

The ZSEEQ series automatic transfer switch controller uses phase angle detection technology. If there is a significant three-phase imbalance in the distribution circuit, with a phase voltage absolute difference greater than 120V, the switch will automatically switch to the backup power supply (quality power source), ensuring the safe operation of the distribution circuit and load equipment.

  1. Self-test Function

The ZSEEQ series automatic transfer switch has a self-test function, allowing detailed checks on power supply, voltage, phase, frequency, and actions. This facilitates regular inspections of the automatic transfer switch by customers.

  1. Fault Alarm

When there is a fault in the power distribution circuit, such as incorrect N-line connection, power failure, overvoltage, undervoltage, missing phase, abnormal phase, or excessive frequency, the ZSEEQ will display a fault code via the LED and issue an alarm. This alerts the user to problems with the main or backup power source, preventing accidents caused by power quality issues.

  1. Memory Storage Function

The ZSEEQ series automatic transfer switch has a memory storage function. When the control system detects a fault, the information is automatically stored in the memory chip, making it easy to query the fault information and its cause.

  1. Control Section

The ZSEEQ series uses SMT manufacturing processes to ensure the reliability of electronic material soldering. The control system isolates strong and weak currents in the detection circuit using photoelectric or magnetic principles. The controller monitors the voltage, frequency, and phase of both power sources in real-time. The system uses isolated current signal-driven control mechanisms. Compared to voltage signal driving, current signal driving has stronger anti-interference capabilities, and isolation technology improves system safety. The ZSEEQ series has passed EMC testing in accordance with GB14048.11, and the fast transient pulse meets the technical requirement of 2kV/5kHz specified in GB14048.11.

  1. Built-in Arc Extinguishing Grid

The ZSEEQ series automatic transfer switch includes an internal arc extinguishing grid, significantly enhancing ATSE’s switching capacity.

  1. Integrated Special Pressure Signal Transmission Template

The ZSEEQ series uses an integrated special pressure signal transmission template for signal transmission, enhancing the electrical insulation level and the interference resistance of signal transmission. It also replaces the traditional micro-switch signal transmission method, ensuring ATSE reliability.

  1. Transmission Mechanism

The switch uses a dual-gear transmission mechanism made of modified nylon, significantly extending the gear’s lifespan and reducing noise, further enhancing the reliability of the ATSE transmission system.

  1. Networking Capability

The ZSEEQ series uses the SuperViewer software system to enable networked management. The upper computer can monitor and modify parameters for multiple automatic transfer switches in the distribution loop in real-time, achieving intelligent management.

ZSEEQ1 Automatic and Electric Transfer Switch Dimensions (Unit: mm)

ZSEEQ3(GLD)-160～630 Automatic and Electric Transfer Switch Dimensions (Unit: mm)

ZSEEQ3(GLD)-1000～1600 Automatic and Electric Transfer Switch Dimensions (Unit: mm)

ZSEEQ3(GLD)-2000～3150 Automatic and Electric Transfer Switch Dimensions (Unit: mm)

ZSEEQ1 Series Product Plug-in Terminal Diagram

ZSEEQ3(GLD)-160～3150 Automatic and Electric Transfer Switch Appliance Plug-in Terminal Diagram

ZSEEQ Series Product Fire Protection Feedback Module Plug-in Terminal Diagram and External Mounting Dimensions (Unit: mm)

Plug-in Terminal Diagram

External Mounting Dimensions (Unit: mm)

  • Due to continuous technological upgrades and optimizations of the company’s products, all information contained in this material is subject to the actual product. Changes may occur without prior notice. The company and its employees will not assume any joint liability for disputes arising from information in this material not confirmed by our business department.
For more information, you can contact us via email:[email protected], Click here for more contact details
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