GEYA GRD9L-R Automatic Reclosing Leakage Circuit Breaker User Manual

Introduction

This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the GEYA GRD9L-R Automatic Reclosing Leakage Circuit Breaker. This device is designed to enhance electrical safety and system reliability by automatically reclosing after an electrical fault, such as an earth leakage current, thereby reducing downtime and manual intervention.

Safety Information

Always adhere to local electrical codes and safety regulations during installation and operation. Installation should only be performed by qualified personnel. Disconnect power before working on the device or associated circuitry. Failure to follow these instructions may result in serious injury or property damage.

• Ensure all power is disconnected before installation or maintenance.
• Do not operate the device if it appears damaged.
• Verify correct wiring connections to prevent malfunction or hazards.
• This device is designed for specific electrical parameters; ensure your system matches these specifications.

Product Overview

The GEYA GRD9L-R is an automatic reclosing device designed to be paired with a Residual Current Circuit Breaker (RCCB) or Miniature Circuit Breaker (MCB), specifically the GYL9 Type A-SI RCCB. Its primary function is to automatically restore power after an unexpected trip caused by an electrical fault, such as an earth leakage current, without requiring manual intervention. This feature is crucial for applications where continuous power supply is critical, such as in smart homes, new energy vehicle charging piles, and PV solar control boxes.

Key Features:

• Automatic reclosing capability for MCB/RCCB trips.
• Reduces manual maintenance costs and improves system efficiency.
• Built-in reclosing logic with 3 attempts.
• Alarm output via auxiliary contact if reclosing fails after 15 minutes.
• Manual/Automatic selector switch for operational flexibility.
• Mechanical and electronic double locking functions for safety.
• Stable and reliable shaft transmission mode.
• LED indicators for clear work status display.

The GEYA RCCB Recloser is designed to restore power after unwanted tripping due to electrical faults.

Specifications

The following table details the technical parameters of the GRD9L-R recloser module:

Detailed technical parameters for the GRD9L-R recloser.

Combined Dimensions (Recloser + RCCB/MCB):

Dimensions of the GRD9L-R when combined with GYL9 2P (53mm width) and GYL9 4P (88mm width).

Installation and Setup

The GRD9L-R recloser is designed for DIN rail mounting (EN/IEC 60715) and cooperates with standard RCCBs or MCBs. Ensure proper alignment and secure fastening.

Mounting and Connection:

Diagrams illustrating how to cooperate with RCCB/MCB, use the closing lock, and install accessories.

• Cooperate with RCCB: Follow the numbered steps in the diagram to correctly attach the recloser to an RCCB.
• Cooperate with MCB: Follow the numbered steps in the diagram to correctly attach the recloser to an MCB.
• Accessories Installing: Ensure any additional accessories are installed as shown, connecting the recloser to the MCB/RCCB.

Wiring Diagram:

Refer to the following diagrams for correct electrical connections. The GRD9L-R requires a 220V AC supply for its operation.

Panel diagram showing indicators and controls, along with the wiring diagram for the GRD9L-R.

Example application wiring diagram demonstrating connection with an alarm lamp and loads.

Note: The maximum cable size for solid wire is 1x2.5mm² or 2x1.5mm², and for wire with sleeve, it is max. 1x2.5mm² (AWG 12).

Operation

The GRD9L-R features an AUTO/MANU selector switch and LED indicators to monitor its status.

Mode Selection:

Diagram explaining the AUTO/MANU switch and PWR indicator behavior.

• AUTO Mode: When the switch is set to AUTO, the automatic reclosing function is enabled. The device will attempt to reclose the circuit breaker after a trip.
• MANU Mode: When the switch is set to MANU, the automatic reclosing function is disabled. The MCB/RCCB can only be opened and closed manually.

LED Indicators:

• PWR Indicator:
  • When powered on, the green indicator will flash for 2 seconds to wait for the power supply to stabilize.
  • Then the green indicator light will stay on.
  • If the MCB/RCCB fails to trip, the red indicator light will be on.
  • During auto reclosing delay, the indicator color will flash.
  • After the delay, it will switch on automatically and the green light will be on.
• Functions Diagram:

  Detailed functions diagram showing LED states, trip times, and auto reclosing logic.

  • The device attempts to reclose 3 times with increasing delays (10s, 60s, 300s).
  • If reclosing is successful, the trip counter resets.
  • If all 3 attempts fail within 15 minutes, the device locks out and sends an alarm via the auxiliary contact.
  • Power delay (Tr) is 2 seconds.

Maintenance

Regular maintenance ensures the longevity and reliable operation of your GRD9L-R recloser.

• Monthly Test: Press the "Test Monthly" button on the RCCB/recloser to verify its tripping function. This ensures the earth leakage protection is working correctly.
• Visual Inspection: Periodically inspect the device for any signs of physical damage, loose connections, or discoloration.
• Cleaning: Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use abrasive cleaners or solvents.
• Connection Check: Ensure all wiring connections remain tight and secure.

Troubleshooting

If the GRD9L-R recloser is not functioning as expected, consider the following:

• Device Not Reclosing:
  • Check if the mode selector switch is in "AUTO" position.
  • Verify power supply to the recloser (PWR LED should indicate power).
  • If the indicator light is flashing, the device is in a reclosing delay cycle. Wait for the cycle to complete.
  • If the red indicator light is solid, the MCB/RCCB has failed to trip, or the recloser has reached its maximum reclosing attempts (3 attempts within 15 minutes) and is locked out. Investigate the cause of the persistent fault.
  • Ensure the closing lock function is not activated, which prevents manual or automatic closing.
• No Power Indication:
  • Check the main power supply to the circuit.
  • Verify the wiring connections to the A1-A2 terminals of the recloser.
• Alarm Signal Active:
  • An alarm indicates that the recloser has failed to successfully reclose the circuit after 3 attempts within 15 minutes. This suggests a persistent electrical fault.
  • Immediately investigate the circuit for the source of the earth leakage or other electrical fault. Do not attempt to manually reclose until the fault is identified and resolved.

User Tips

• Understanding Type A-SI RCCBs: The GYL9 RCCB used with this recloser is a Type A-SI (Super Immunised) device. This means it is designed to be less susceptible to nuisance tripping from transient currents or DC components, providing more stable protection in environments with electronic loads.
• Regular Testing is Key: Even with automatic reclosing, it's vital to perform the monthly test on the RCCB to ensure its core earth leakage detection mechanism is fully functional.
• Fault Identification: If the recloser enters a lockout state (after 3 failed attempts), it's a strong indication of a persistent fault. Prioritize identifying and fixing the underlying electrical issue before attempting to restore power.
• Auxiliary Contact for Monitoring: Utilize the auxiliary contact feature to connect an external alarm or monitoring system. This provides immediate notification of persistent faults, allowing for quicker resolution.

Warranty and Support

For warranty information and technical support, please refer to the manufacturer's official website or contact your local distributor. Keep your purchase receipt as proof of purchase.

Manufacturer Contact:

• Website: www.geya.net
• Email: cassie@cngeya.com