EARUELETRIC EAB6L Residual Current Circuit Breaker (RCBO) Instruction Manual

1. Introduction

The EARUELETRIC EAB6L Residual Current Circuit Breaker (RCBO) is designed to provide comprehensive electrical protection in residential and similar installations. It integrates the functions of a Miniature Circuit Breaker (MCB) and a Residual Current Device (RCD), offering protection against overload currents, short-circuit currents, and earth fault currents. This manual provides essential information for the safe and effective installation, operation, and maintenance of your EAB6L RCBO.

2. Safety Information

WARNING: Electrical work should only be performed by qualified and licensed electricians. Failure to follow these instructions can result in electric shock, fire, or serious injury.

• Always disconnect power at the main supply before installing or performing any maintenance on the circuit breaker.
• Ensure the circuit breaker's specifications match the requirements of your electrical system.
• Do not operate the device if it appears damaged.
• Regularly test the device as instructed in the maintenance section.
• This device protects against sinusoidal alternating earth fault currents. It does not protect against pulsed DC residual currents.

3. Product Overview

The EAB6L RCBO is available in 2-pole (2P) and 4-pole (4P) configurations. Key components and their functions are illustrated below:

• Terminal Block: Points for connecting incoming and outgoing electrical wires.
• Product Identification: Displays model and certification information.
• Product Model: EAB6L.
• Leakage Indication Window: Indicates if a leakage fault has occurred.
• Rated Voltage: 230V~ (for 2P) or 400V~ (for 4P).
• CE Certification: Indicates compliance with European safety standards.
• Operating Handle: Used to manually switch the circuit breaker ON or OFF, and indicates trip status.
• 'Press Monthly' Test Button: Used to manually test the residual current protection function.
• Segmentation Capability (IΔm): 2000A (for leakage protection).

4. Specifications

5. Installation

The EAB6L RCBO is designed for easy installation on a standard DIN rail. Ensure all power is OFF before proceeding.

1. Mounting: Align the RCBO's clips with the DIN rail. Press firmly until the clips engage and the device is securely fastened. The video below demonstrates this process.
2. Wiring: Connect the incoming power supply wires to the 'IN' terminals at the top of the RCBO. Connect the outgoing circuit wires to the 'OUT' terminals at the bottom. Ensure correct polarity and secure all connections tightly. Refer to local electrical codes and wiring diagrams for your specific application.
3. Verification: Double-check all connections for tightness and correct wiring before restoring power.

6. Operating Instructions

1. Turning ON: Push the operating handle upwards to the 'ON' position.
2. Turning OFF: Push the operating handle downwards to the 'OFF' position.
3. Trip Indication: If an overload, short circuit, or earth fault occurs, the operating handle will automatically move to a central or 'TRIPPED' position, and the leakage indication window may change color (e.g., from green to red).
4. Resetting after a Trip: Before resetting, identify and rectify the cause of the trip. Then, push the operating handle fully down to the 'OFF' position, and then push it upwards to the 'ON' position. If the device trips again immediately, do not force it; consult a qualified electrician.

7. Maintenance

Regular testing of the RCBO's residual current function is crucial to ensure continued safety.

1. Monthly Test: Press the 'Press Monthly' test button (marked 'T' or 'TEST') on the front of the RCBO. The device should trip immediately, moving the operating handle to the 'TRIPPED' position.
2. Reset: After testing, reset the RCBO by pushing the handle fully down and then up to the 'ON' position.
3. Failure to Trip: If the RCBO does not trip when the test button is pressed, it indicates a malfunction. The device must be replaced immediately by a qualified electrician.

8. Troubleshooting

If your EAB6L RCBO trips, follow these steps:

• Identify the Cause: A trip indicates an electrical fault. This could be an overload (too many devices on one circuit), a short circuit (direct contact between live and neutral/earth wires), or an earth leakage (current flowing to earth through an unintended path).
• Disconnect Appliances: Unplug or switch off all appliances connected to the tripped circuit.
• Reset the RCBO: Push the handle fully down to 'OFF', then back up to 'ON'.
• Test the Circuit: If the RCBO holds, plug in/switch on appliances one by one to identify the faulty device.
• Persistent Tripping: If the RCBO trips immediately after resetting, or if it trips without any appliances connected, there may be a fault in the wiring itself. In this case, or if you cannot identify the cause, contact a qualified electrician.

9. User Tips

• Regular Checks: Make the monthly test button press a routine. This ensures the leakage protection is always active.
• Load Management: Avoid overloading circuits by distributing high-power appliances across different circuits.
• Professional Installation: For optimal safety and performance, always have your RCBO installed by a certified electrician.

10. Warranty and Support

For warranty claims, technical support, or further assistance, please contact your original point of purchase or the manufacturer directly. Keep your purchase receipt as proof of purchase.