1. Introduction
This user manual provides essential instructions for the safe installation, operation, and maintenance of the DELIXI DZ47SLE 2-Pole 40A Residual Current Circuit Breaker with Overcurrent Protection (RCBO). Please read this manual thoroughly before installation and use to ensure proper function and safety.
2. Safety Information
WARNING: Electrical work should only be performed by qualified and licensed electricians. Failure to follow these safety guidelines can result in electric shock, fire, serious injury, or death.
- Always disconnect power at the main supply before installing, servicing, or removing the circuit breaker.
- Ensure all wiring connections are secure and comply with local electrical codes and regulations.
- Do not operate the circuit breaker if it appears damaged or faulty.
- Never bypass or tamper with the circuit breaker's protective mechanisms.
- Verify the voltage and current ratings of the circuit breaker match the electrical system requirements.
3. Product Overview
The DELIXI DZ47SLE is a compact 2-pole Residual Current Circuit Breaker with Overcurrent Protection (RCBO) designed to provide protection against both overloads, short circuits, and earth leakage faults in electrical circuits. It features a manual operating handle and a test button for verifying its functionality.
Figure 1: DELIXI DZ47SLE Circuit Breaker. This image shows the front view of the circuit breaker, highlighting the red operating handle, the 'R' reset button, the 'T' test button, and various specifications printed on the device, including "DZ47sLE C40", "50Hz 230V~", and "RCBO IΔn 30mA t<0.1s". The load terminals are indicated at the bottom.
Key Components:
- Operating Handle (Red): Used to manually switch the circuit breaker ON or OFF.
- 'R' Reset Button: Indicated as "合闸前请按下" (Press before closing). This button must be pressed to reset the mechanism before the handle can be moved to the ON position after a trip.
- 'T' Test Button (Yellow): Indicated as "每月按一次" (Press once a month). Used to manually test the residual current protection function. Pressing this button should cause the circuit breaker to trip.
- Specifications Label: Displays model (DZ47sLE), current rating (C40, indicating 40A), frequency (50Hz), voltage (230V~), and RCBO parameters (IΔn 30mA, t<0.1s).
- Wiring Terminals: Located at the top and bottom for connecting input and load wires. The bottom terminals are labeled "负载端" (Load terminal).
4. Setup and Installation
Installation of the DELIXI DZ47SLE circuit breaker should only be carried out by a qualified electrician in accordance with all applicable national and local electrical codes.
- Power Disconnection: Ensure the main power supply to the distribution board is completely disconnected and locked out before beginning any work.
- Mounting: Mount the circuit breaker securely onto a DIN rail within the electrical enclosure.
- Wiring Connections:
- Connect the incoming live and neutral wires to the upper terminals of the circuit breaker.
- Connect the outgoing live and neutral wires to the lower terminals, labeled "负载端" (Load terminal).
- Ensure all wire insulation is stripped to the correct length and that wires are fully inserted into the terminals before tightening the screws firmly.
- Verify that the wire gauge is appropriate for the 40A current rating of the circuit breaker.
- Double Check: Before restoring power, visually inspect all connections for tightness and correctness.
- Restore Power: Carefully restore power to the distribution board.
5. Operating Instructions
- Turning ON: If the circuit breaker is in the OFF (down) position or has tripped, first press the 'R' reset button (if applicable, as indicated by "合闸前请按下"). Then, push the red operating handle upwards to the ON position.
- Turning OFF: To manually disconnect power to the circuit, push the red operating handle downwards to the OFF position.
- Tripped State: If the circuit breaker trips due to an overload, short circuit, or earth leakage, the operating handle will move to an intermediate or OFF position. Before attempting to reset, identify and rectify the cause of the trip.
6. Maintenance
Regular maintenance ensures the continued reliable operation of your DELIXI DZ47SLE circuit breaker.
- Monthly Test: Press the yellow 'T' test button (indicated by "每月按一次") at least once a month. The circuit breaker should immediately trip to the OFF position. This confirms the residual current protection mechanism is functioning correctly. If it does not trip, the device may be faulty and should be replaced by a qualified electrician.
- Cleaning: Keep the circuit breaker clean and free from dust and debris. Use a dry, non-abrasive cloth for cleaning. Do not use liquids or solvents.
- Inspection: Periodically inspect the circuit breaker for any signs of physical damage, discoloration, or loose connections. Any issues should be addressed by a qualified electrician.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Circuit breaker trips frequently. | Overload, short circuit, or earth leakage fault in the protected circuit. | Identify and remove the cause of the overload or fault. Reduce the load on the circuit. Inspect wiring for damage. If the issue persists, consult a qualified electrician. |
| Circuit breaker does not reset after tripping. | Persistent fault in the circuit, or the 'R' reset button was not pressed before attempting to move the handle. | Ensure the fault is cleared. Press the 'R' reset button firmly before attempting to move the handle to the ON position. If it still does not reset, the breaker may be damaged and requires replacement by a qualified electrician. |
| Test button ('T') does not trip the breaker. | Faulty residual current protection mechanism. | The circuit breaker is faulty and must be replaced immediately by a qualified electrician. Do not use a faulty protective device. |
8. Specifications
| Model: | DELIXI DZ47SLE |
| Poles: | 2P (2-Pole) |
| Rated Current: | 40A (C40) |
| Rated Voltage: | 230V~ |
| Rated Frequency: | 50Hz |
| Type: | RCBO (Residual Current Circuit Breaker with Overcurrent Protection) |
| Rated Residual Operating Current (IΔn): | 30mA |
| Rated Residual Non-Operating Current: | ≤ 0.5 IΔn |
| Tripping Time: | t < 0.1s |
| Rated Short-Circuit Breaking Capacity (Iam): | 630A |
9. Warranty and Support
For warranty information, please refer to the documentation provided at the time of purchase or contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
For technical support or further assistance, please contact the seller or a qualified electrician.