1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of the perdnmkg DPNLE-32 Mini Residual Current Circuit Breaker with Overcurrent Protection (RCBO). This device is designed to protect against leakage current, overload, and short circuit faults in electrical systems.
Please read this manual thoroughly before installation and retain it for future reference. Proper installation and adherence to safety guidelines are crucial for optimal performance and user safety.
2. Important Safety Information
- Electrical Hazard: Installation and maintenance must be performed by qualified personnel only. Ensure power is disconnected before any work on the circuit breaker.
- Voltage: This device is rated for 230V~ 50/60Hz. Do not use it in systems exceeding these specifications.
- Protection: The RCBO provides protection against residual current (earth leakage), overload, and short circuit. It does not protect against direct contact with live conductors.
- Testing: Regular testing of the residual current function is essential for continued safety. Refer to the "Operation" section for details.
- Environment: Do not install in environments with excessive moisture, dust, corrosive gases, or extreme temperatures outside the specified operating range.
3. Product Features
The perdnmkg DPNLE-32 Mini RCBO offers the following protective functions:
- Leakage Protection: Detects and interrupts circuits in case of earth leakage current.
- Overload Protection: Safeguards circuits from excessive current draw.
- Short Circuit Protection: Rapidly disconnects power during a short circuit fault.
- Compact Design: 18mm width, saving space in distribution boards.
4. Technical Specifications
| Parameter | Value |
|---|---|
| Model Number | DPNLE-32 |
| Rated Voltage | 230V~ 50/60Hz |
| Rated Current | 6A, 10A, 16A, 20A, 25A, 32A |
| Poles | 1P+N |
| Breaking Capacity | 6kA |
| Rated Residual Operating Current | 30mA |
| Action Time | ≤0.1S |
| Operating Temperature | -5°C to +40°C |
| Mounting | 35mm Din Rail |
| Standard | IEC61009-1 |
Overload Characteristics
| Testing Current (A) | Rated Voltage (V) | Limited Time | Pre-Engage Result | Start Situation | Note |
|---|---|---|---|---|---|
| 1.13In | all | t ≥ 1h | non-trip | Cold State | The current rise steadily to a fixed value within 5s |
| 1.45In | all | t < 1h | trip | Head State | Open the supplementary switch, connect the power |
| 2.55In | all | 1s < t < 60s | trip | Cole State | Open the supplementary switch, connect the power |
| 5In | all | t ≥ 0.1s | non-trip | Cold State | Open the supplementary switch, connect the power |
| 10In | all | t < 0.1s | trip | Cole State | Open the supplementary switch, connect the power |
5. Installation and Setup
WARNING: Installation must be performed by a qualified electrician. Ensure all power is disconnected at the main supply before proceeding.
- Mounting: The DPNLE-32 RCBO is designed for mounting on a standard 35mm DIN rail. Securely clip the device onto the DIN rail within your distribution board.
- Wiring:
- Connect the incoming live (L) and neutral (N) wires to the top terminals marked 'IN'.
- Connect the outgoing live (L) and neutral (N) wires to the bottom terminals marked 'OUT'.
- Ensure all connections are tight and secure to prevent loose contacts and overheating.
- Verification: Double-check all wiring connections against the circuit diagram and local electrical codes.
Figure 1: DPNLE-32 RCBO with dimensions and wiring diagram. This image illustrates the physical size of the device and indicates the input (IN) and output (OUT) terminals for live (L) and neutral (N) connections.
Figure 2: Size comparison between the compact DPNLE-32 (left) and a standard DPNL circuit breaker (right). The DPNLE-32 is shown to be approximately half the width (18mm) of the DPNL (36mm), highlighting its space-saving design.
6. Operation
- Switching On: Once installed and wired correctly, switch on the main power supply. Push the operating handle of the RCBO upwards to the 'ON' position.
- Switching Off: To disconnect power to the protected circuit, push the operating handle downwards to the 'OFF' position.
- Tripping: In the event of an overload, short circuit, or earth leakage, the RCBO will automatically trip, moving the operating handle to the 'OFF' or intermediate position.
- Resetting: If the RCBO trips, first identify and rectify the cause of the fault. Then, push the operating handle fully down to reset it, and then push it up to the 'ON' position. If it trips again immediately, do not attempt to reset it repeatedly; consult a qualified electrician.
- Test Button: The RCBO is equipped with a test button to verify the residual current protection function.
Figure 3: The test button on the DPNLE-32 RCBO. This button is typically marked with a 'T' or 'Test' and is used to manually simulate an earth leakage fault to ensure the device is functioning correctly.
Procedure for Testing:
- Ensure the RCBO is in the 'ON' position and the circuit is live.
- Press the test button (usually marked 'T' or 'Test').
- The RCBO should immediately trip to the 'OFF' position.
- If it trips, reset the RCBO as described above.
- If the RCBO does not trip, it indicates a malfunction. The device must be replaced immediately.
7. Maintenance
- Regular Testing: It is recommended to press the test button at least once a month to ensure the residual current protection function is operational.
- Cleaning: Keep the RCBO clean and free from dust. Use a dry, soft cloth for cleaning. Do not use liquids or abrasive cleaners.
- Inspection: Periodically inspect the RCBO for any signs of physical damage, discoloration, or loose connections. Any damaged device must be replaced.
- Professional Check: For critical installations, a qualified electrician should perform a comprehensive inspection and test of the electrical system, including the RCBO, at recommended intervals.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| RCBO trips immediately after being reset. | Persistent overload, short circuit, or earth leakage fault in the circuit. | Disconnect all appliances from the circuit. Reset the RCBO. If it holds, reconnect appliances one by one to identify the faulty device. If it still trips, there may be a wiring fault. Consult a qualified electrician. |
| RCBO does not trip when the test button is pressed. | Malfunction of the residual current detection mechanism. | The RCBO is faulty and must be replaced immediately by a qualified electrician. |
| RCBO feels hot to the touch. | Loose connections, excessive load, or internal fault. | Immediately disconnect power. Check all wiring connections for tightness. Reduce the load on the circuit. If the problem persists, replace the RCBO. Consult a qualified electrician. |
9. Warranty and Support
Specific warranty information for perdnmkg products may vary. Please refer to the product packaging or contact your retailer for details regarding warranty coverage and terms.
For technical support or inquiries, please contact the manufacturer or your authorized dealer. Ensure you have your product model number (DPNLE-32) and purchase details available when seeking support.