1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your GEYA GYL9 B Type Residual Current Circuit Breaker (RCCB). Please read this manual thoroughly before installation and keep it for future reference. The GYL9 B Type RCCB is designed to detect various types of leakage currents, ensuring enhanced safety in electrical installations.
2. Product Overview
The GEYA GYL9 B Type RCCB is a high-performance residual current operated circuit breaker suitable for AC 50Hz systems. It is designed to detect AC leakage, pulsating DC leakage, smooth DC leakage, compound wave leakage, and high-frequency leakage current up to 1kHz. It automatically cuts off the faulty power supply in a very short time to protect people from electric shock and prevent damage to electrical equipment.
2.1. Company Overview Video
For more information about GEYA's commitment to quality and manufacturing processes, please watch the company overview video:
3. Technical Specifications (GYL9-B RCCB)
3.1. Electrical Characteristics
| Characteristic | Value |
|---|---|
| Classification | B |
| Application | Electric car charging station, controlled by three-phase inverter |
| Poles | 1P+N, 3P+N |
| Rated Current (In) | 25A, 40A, 63A |
| Rated Sensitivity (IΔn) | 30mA, 100mA, 300mA |
| Rated Voltage (Ue) | 1P+N: 240V~, 3P+N: 415V~ |
| Rated Insulation Voltage (Ui) | 500V |
| Rated Frequency | 50/60Hz |
| Rated Impulse Withstand Voltage (Uimp) | 4kV |
| Rated Short-Circuit Current Inc / Rated Residual Short Circuit Current Im | 500A (below 63A), 10kA (63A and above) |
| Rated Residual Connecting and Breaking Capacity IΔm | 6kA |
| Rated Residual Non-Operating Current | 0.5IΔn |
| Break Time (Instantaneous) | 0.15s (IΔn), 0.08s (IΔn), 0.04s (IΔn) |
| Compliance | IEC62423, IEC61008-1, GB22794, GB16916.1 |
3.2. Mechanical Properties
| Characteristic | Value |
|---|---|
| Mechanical Life / Electrical Life | 4000 |
| Protection Class (Installed Directly) | Ip20 |
| Protection Class (Installed in Distribution Box) | Ip40 |
| Working Ambient Temperature | -25°C to +60°C |
| Storage Temperature | -25°C to +70°C |
3.3. Other Characteristics
| Characteristic | Value |
|---|---|
| Wiring Size (Copper/Hard Wire) | 1-35mm² |
| Wiring Size (Cord/Hoop Terminals) | 1-25mm² |
| Connection | Top and bottom (ELM), Top line (ELE) |
4. Installation & Wiring
The GYL9 B Type RCCB is designed for easy installation on a DIN rail. Ensure all connections are secure and comply with local electrical codes and regulations.
4.1. Mounting
Mount the RCCB securely onto a standard 35mm DIN rail within a distribution box or suitable enclosure. Ensure adequate ventilation and clearance around the device.
4.2. Wiring Connections
Connect the incoming and outgoing electrical wires to the appropriate terminals. Refer to the wiring diagram on the device and below for correct connections. Use appropriate wire sizes as specified in the technical characteristics (1-35mm² for copper/hard wire, 1-25mm² for cord/hoop terminals).
Important: Ensure all power is disconnected before attempting any installation or wiring. Incorrect wiring can lead to electric shock or equipment damage.
5. Operation
5.1. Switching On/Off
- To switch ON: Push the operating lever upwards to the 'ON' position.
- To switch OFF: Push the operating lever downwards to the 'OFF' position.
5.2. Monthly Test
The GYL9 B Type RCCB is equipped with a 'Test Monthly' button. This button is used to verify the proper functioning of the residual current device. Pressing this button simulates a leakage current, causing the RCCB to trip. If the RCCB does not trip, it indicates a malfunction, and the device should be replaced immediately.
- Press the 'Test Monthly' button (marked 'T') to perform a functional test.
- The RCCB should trip, interrupting the power supply.
- Reset the RCCB by pushing the operating lever upwards.
- Perform this test at least once a month to ensure continued safety.
6. Maintenance
The GYL9 B Type RCCB requires minimal maintenance. Regular checks are crucial for ensuring its continued reliability and safety.
- Monthly Test: As described in the Operation section, press the 'Test Monthly' button regularly.
- Visual Inspection: Periodically inspect the device for any signs of physical damage, discoloration, or loose connections.
- 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.
- Professional Inspection: It is recommended to have the electrical installation, including the RCCB, inspected by a qualified electrician periodically, especially after any electrical work or if you suspect a fault.
7. Troubleshooting
If your GYL9 B Type RCCB is not functioning as expected, consider the following common issues:
- RCCB Trips Frequently:
- Overload: The connected circuit may be drawing too much current. Reduce the load or redistribute appliances.
- Short Circuit: A short circuit in the wiring or an appliance can cause tripping. Inspect wiring and appliances for faults.
- Earth Leakage: There might be a genuine earth leakage fault. Disconnect appliances one by one to identify the faulty one. If the tripping persists with all appliances disconnected, the wiring itself might have a fault. - RCCB Does Not Reset:
- Persistent Fault: The RCCB will not reset if the fault (overload, short circuit, or earth leakage) is still present. Identify and clear the fault before attempting to reset.
- Internal Damage: If no fault is detected and the RCCB still won't reset, the device itself might be damaged and requires replacement. - 'Test Monthly' Button Does Not Trip the RCCB:
- This indicates a malfunction of the RCCB's internal test mechanism or the device itself. The RCCB is not providing protection and must be replaced immediately by a qualified professional.
For any persistent issues or if you are unsure about troubleshooting steps, always consult a qualified electrician.
8. User Tips
- Regular Testing: Make it a habit to press the 'Test Monthly' button on your RCCB at least once a month. This simple check ensures your safety device is always ready to protect you.
- Professional Installation: For optimal performance and safety, always have your RCCB installed by a certified electrician.
- Understand Your Loads: Be aware of the power requirements of your appliances to avoid overloading circuits, which can lead to nuisance tripping.
9. Warranty & Support
For detailed warranty information and customer support, please refer to the official GEYA documentation or contact your point of purchase. A comprehensive user manual in PDF format is available for download, providing additional technical details and guidance. You can access the PDF manual here.