1. Introduction
This manual provides essential information for the safe and effective installation, operation, and maintenance of your EARUELETRIC DPNLE-32 Residual Current Circuit Breaker with Overcurrent Protection (RCBO). The DPNLE-32 is designed to provide comprehensive electrical protection against short circuits, overloads, and hazardous earth leakage currents in 230V AC electrical systems.
2. Safety Information
WARNING: Installation and maintenance should only be performed by qualified electricians in accordance with national and local electrical codes. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always disconnect power before installing or servicing the RCBO.
- Ensure proper grounding and wiring connections.
- Do not operate the device if it appears damaged.
- The RCBO is designed for indoor use in dry environments.
3. Product Overview and Dimensions
Key Components:
- Brand Name: EARU
- Product Model: DPNLE-32
- Rated Current: (e.g., C6A, C10A, C16A, C20A, C25A, C32A)
- Rated Voltage: 230V 50/60Hz
- Testing Button: Used to manually test the residual current protection function.
- Operating Handle: For switching the RCBO ON/OFF and indicating its status.
- Wiring Terminal: Points for connecting live (L) and neutral (N) wires.
- Tighten Screws: For securing wiring connections.
- Flame Retardant Housing: Ensures safety in case of electrical faults.
Dimensions:
- Width: 18mm
- Height: 72mm
- Depth (from front to back, including handle): 60mm
- Depth (from mounting surface to back): 45mm
4. Installation
The DPNLE-32 RCBO is designed for DIN rail mounting. Ensure the mounting surface is stable and provides adequate ventilation.
- Power Disconnection: Before starting any electrical work, ensure the main power supply to the circuit is completely disconnected and locked out.
- Mounting: Clip the RCBO onto a standard 35mm DIN rail. Ensure it is securely fastened.
- Wiring: Refer to Figure 2 for the wiring diagram. Connect the incoming live (L) and neutral (N) wires to the upper terminals and the outgoing live (L) and neutral (N) wires to the lower terminals. Ensure correct polarity (Line and Neutral are typically marked on the device). Tighten all terminal screws firmly to prevent loose connections, which can cause overheating.
- Verification: Double-check all connections for correctness and tightness before restoring power.
5. Operation
The RCBO features an operating handle and a test button for functional verification.
- Switching ON/OFF: Move the operating handle upwards to turn the RCBO ON (closed circuit) and downwards to turn it OFF (open circuit).
- Testing Residual Current Function: Press the blue 'T' (Test) button. The RCBO should trip immediately, moving the operating handle to the OFF position. This confirms the residual current protection mechanism is working correctly.
- Resetting after Trip: If the RCBO trips due to an overload, short circuit, or earth leakage, move the operating handle fully to the OFF position, then back to the ON position to reset it. If it trips repeatedly, investigate the cause of the fault.
6. Maintenance
The DPNLE-32 RCBO is designed for minimal maintenance. However, regular checks are recommended to ensure continued safe operation:
- Monthly Test: Press the 'T' (Test) button at least once a month to verify the residual current protection function. If the RCBO does not trip, it should be replaced.
- Visual Inspection: Periodically inspect the RCBO 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 liquids or abrasive cleaners.
7. Troubleshooting
If your DPNLE-32 RCBO is not functioning as expected, consider the following:
- RCBO Trips Frequently: This indicates a fault in the circuit it protects.
- Overload: Too many devices are connected to the circuit, drawing excessive current. Reduce the load.
- Short Circuit: A direct connection between live and neutral wires, or live and earth. This requires immediate investigation by a qualified electrician.
- Earth Leakage: Current is flowing to earth through an unintended path. This could be due to faulty appliances, damaged wiring, or moisture. Disconnect appliances one by one to identify the faulty one.
- RCBO Does Not Trip When Test Button is Pressed: The residual current protection mechanism may be faulty. The RCBO must be replaced immediately by a qualified electrician.
- RCBO Does Not Stay ON: Ensure the operating handle is pushed firmly to the ON position. If it immediately trips back to OFF, a persistent fault (overload, short circuit, or earth leakage) is present in the circuit.
8. Specifications
| Parameter | Value |
|---|---|
| Product Series | DPNLE-32 |
| Type | Mini Circuit Breaker (RCBO) |
| Rated Voltage | AC 230V, 50/60Hz |
| Rated Current Options | 6A, 10A, 16A, 20A, 25A, 32A |
| Number of Poles | 1P+N |
| Breaking Capacity | 6kA |
| Rated Residual Operating Current | 30mA |
| Action Time | ≤0.1S |
| Operating Temperature | -5℃ to +40℃ |
| Mechanical Lifespan | 20000 cycles |
| Compliant With Standards | IEC61009-1 |
| Product Certification | CE |
| Is Smart Device | No |
| Origin | Mainland China |
9. Warranty and Support
For warranty claims, technical support, or service inquiries, please contact your original point of purchase or the EARUELETRIC customer service department. Keep your purchase receipt as proof of purchase.
10. User Tips
- Professional Installation: While the installation process is outlined, it is highly recommended to have a qualified electrician perform the installation to ensure compliance with local electrical codes and safety standards.
- RCBO vs. RCD: This device is an RCBO (Residual Current Circuit Breaker with Overcurrent Protection), meaning it protects against both earth leakage (like an RCD) and overcurrents (like a miniature circuit breaker). This provides comprehensive protection for your circuits.
- CE Certification: The product is CE certified, indicating compliance with European health, safety, and environmental protection standards.