GEYA Mini ATS Automatic/Manual Transfer Switch User Manual

1. Introduction

This manual provides detailed instructions for the installation, operation, and maintenance of the GEYA Mini ATS Automatic/Manual Transfer Switch, Model 3P-63A-110VAC. This device is designed to automatically or manually switch between two power sources, such as grid power, a generator, or a photovoltaic system, ensuring continuous power supply to your load.

Figure 1: GEYA Mini ATS Automatic/Manual Transfer Switch (Model 3P-63A-110VAC)

2. Safety Information

Please read and understand all safety warnings and instructions before installing or operating this device. Failure to follow these instructions may result in electric shock, fire, or serious injury.

• Installation and maintenance should only be performed by qualified personnel.
• Always disconnect all power sources before working on the switch or connected circuits.
• Ensure proper grounding to prevent electric shock.
• Verify voltage and current ratings of the switch match your application requirements.
• Do not operate the switch in wet or damp conditions.
• The voltage of the common and backup power supply must be 85-110% of the rated voltage.
• The current cannot be less than 5A, otherwise the coil may overheat or combust.
• The backup power of the product must be a stable city power, otherwise the product will not switch automatically.

3. Product Features

• Dual Power Source Compatibility: Designed for automatic or manual conversion between two power supplies (e.g., mains, generator, photovoltaic).
• Over-Voltage and Under-Voltage Protection (110V/50Hz):
  • Undervoltage value: 85V, Recovery value: 95V (± 5V)
  • Overvoltage value: 145V, Recovery value: 130V (± 5V)
• Over-Voltage and Under-Voltage Protection (220V/50Hz):
  • Undervoltage value: 175V, Recovery value: 195V (± 5V)
  • Overvoltage value: 260V, Recovery value: 240V (± 5V)
• Automatic Switching: When the normal power supply is abnormal, the device automatically switches to the backup power supply. It switches back to normal power when restored.
• Indicator Lights: Equipped with indicator lights for both power sources (A and B) to show operational status.
• Fast Switching: Power switch completed within 100 milliseconds, minimizing power interruptions.
• Intelligent Control: Features self-restoring, over-voltage, and under-voltage protection.
• Durable Construction: Utilizes silver contacts and copper terminals for reliability and longevity.
• DIN Rail Mounting: Compatible with universal DIN rail mounting for easy installation.

Figure 2: Explanation of Automatic Transfer Switch Function

Figure 3: Fast Switching and Intelligent Control Capabilities

Figure 4: Internal Components and Installation Method

4. How to Choose Your Model

Refer to the table below to select the appropriate ATS model based on your live line voltage and connection requirements.

Figure 5: Model Selection Guide

Note: The voltage of the common and backup power supply must be 85-110% of the rated voltage, and the current cannot be less than 5A, otherwise the coil will heat up or even spontaneously combust. The backup power of the product must be a stable city power, otherwise the product will not switch automatically.

5. Product Dimensions

The GEYA Mini ATS is designed for compact installation with universal DIN rail mounting. Refer to the diagram below for detailed dimensions.

Figure 6: Product Dimensions (in mm)

• Overall Length: 125 mm
• Overall Width: 78.5 mm
• Overall Height: 103 mm
• DIN Rail Mounting Height: 35 mm
• Safety Distance S1: ≥ 30mm
• Safety Distance S2: ≥ 203mm

Figure 7: Detailed Dimensions and Safety Clearances

6. Technical Specifications

Below are the technical specifications for the GEYA Mini ATS Automatic/Manual Transfer Switch.

Figure 8: Technical Parameter Table

Figure 9: Main Technical Parameters for W2R-100 Series

7. Setup and Installation

7.1 Component Identification

Familiarize yourself with the different parts of the transfer switch before proceeding with installation.

Figure 10: Analysis of Each Part Name (3P Poles)

• Signal Terminal: For control signals.
• Source A Power Inlet Terminal: Connection point for Main Power (Source A).
• Source A Power Indicator: Indicates status of Source A.
• Auto/Manual Mode Switch: Selector for operation mode.
• Source B Power Indicator: Indicates status of Source B.
• Transfer Handle: Manual override for switching power sources.
• Source B Power Inlet Terminal: Connection point for Standby Power (Source B).
• Power Output (Load Port): Connection point for the electrical load.

7.2 Wiring Diagram

Follow the wiring diagrams carefully to ensure correct and safe installation. The device supports connection to mains, generator, or photovoltaic systems.

Figure 11: Example of Photovoltaic and Generator Combination Wiring

Figure 12: General Wiring Diagram (3P Poles)

Figure 13: Various Product Wiring Diagram Examples

Wiring Steps:

1. Mount the ATS on a DIN rail in a suitable enclosure.
2. Connect the Main Power (Source A) to the "Source A Power Inlet Terminal" (AR, AS, AT, AN).
3. Connect the Standby Power (Source B) to the "Source B Power Inlet Terminal" (BR, BS, BT, BN).
4. Connect the load to the "Power Output (Load Port)".
5. Ensure all connections are secure and tightened to prevent loose contacts and overheating.
6. Connect the control lines (Common Neutral line, Common control line, Alternate control line) as per the diagram for automatic operation.

Video: Wiring Example and Operation Demonstration

Video 1: This video demonstrates the wiring process and basic operation of the GEYA ATS (W2R) unit. It shows how to connect power sources and loads, and how the switch responds to power changes.

8. Operating Instructions

The GEYA Mini ATS can operate in both automatic and manual modes.

8.1 Automatic Mode

• Set the "Auto/Manual Mode Switch" to AUTO.
• When normal power supply A is working properly, the A (red light) indicator will be on.
• If normal power supply A becomes abnormal (e.g., power outage, under/over voltage), the A (green light) indicator will go off, and the switch will automatically transfer the load to backup power supply B.
• When normal power supply A recovers, the switch will automatically transfer the load back to power supply A.

8.2 Manual Mode

• Set the "Auto/Manual Mode Switch" to MANUAL.
• To select power supply A, manually operate the red transfer handle towards power supply A. The red light for A will turn on.
• To select power supply B, manually operate the red transfer handle towards power supply B. The red light for B will turn on.
• In manual mode, the switch will not automatically transfer power.

Video: Automatic/Manual Transfer Switch Operation

Video 2: This video illustrates the functionality of the GEYA Automatic/Manual Transfer Switch (W2R), demonstrating how it switches between power sources.

Video: ATS Usage Demonstration

Video 3: A brief demonstration of the GEYA ATS (W2R) in action, showing the power transfer process.

9. Maintenance

The GEYA Mini ATS is designed for reliable operation with minimal maintenance. However, periodic checks are recommended to ensure optimal performance and safety.

• Visual Inspection: Regularly inspect the switch for any signs of physical damage, loose connections, or discoloration due to overheating.
• Terminal Tightness: Periodically check and tighten all terminal screws to ensure good electrical contact.
• Cleanliness: Keep the switch free from dust, dirt, and moisture. Use a dry, soft cloth for cleaning.
• Functionality Test: Occasionally test the automatic transfer function by temporarily disconnecting the main power source (if safe to do so) to ensure the switch transfers to the backup source as expected.

10. Troubleshooting

If you encounter issues with your GEYA Mini ATS, consider the following troubleshooting steps:

• No Power Transfer:
  • Check if both power sources (A and B) are active and within the specified voltage range (85-110% of rated voltage).
  • Ensure the "Auto/Manual Mode Switch" is set to AUTO for automatic operation.
  • Verify all wiring connections are secure and correct according to the wiring diagram.
  • Check if the current is below 5A, which can cause the coil to malfunction.
• Indicator Lights Not Functioning:
  • Confirm that the corresponding power source is active.
  • Inspect for loose internal connections (requires professional inspection).
• Overheating:
  • Ensure the current is not below 5A.
  • Check for loose terminal connections.
  • Verify the load does not exceed the rated current of the switch.

For persistent issues or complex problems, contact qualified electrical personnel or GEYA customer support.

11. Warranty and Support

GEYA products are manufactured to high-quality standards. For warranty information and technical support, please refer to the official GEYA website or contact your local distributor. Keep your purchase receipt for warranty claims.

For further assistance, visit the GEYA Store on Amazon.