1. Introduction
The EARU EAPDX series is a range of adjustable digital protective devices designed to safeguard electrical appliances and circuits from over-voltage, under-voltage, and over-current conditions. These devices feature a digital display for real-time monitoring of voltage and current, and offer adjustable protection parameters and automatic recovery functions. This manual provides essential information for the safe and effective installation, operation, and maintenance of your EARU protector.
2. Safety Information
- Always disconnect power before installing or performing maintenance on the device.
- Installation should be performed by a qualified electrician in accordance with local electrical codes and regulations.
- Do not operate the device if it appears damaged or malfunctioning.
- Ensure proper wiring connections to prevent electrical hazards.
- The device is designed for indoor use in a dry environment. Avoid exposure to moisture or extreme temperatures.
3. Product Overview and Features
The EARU EAPDX series offers various models with distinct features and display types. All models are designed for 35MM DIN rail mounting and feature high-definition digital displays for clear readings.
Key Features:
- Adjustable Protection: Customizable settings for over-voltage, under-voltage, and over-current thresholds.
- Digital Display: High-definition display for real-time voltage, current, and (for EAPDX-63VAE-RGB) energy consumption.
- Automatic Recovery: Automatically reconnects power after fault conditions return to normal.
- Flame-Retardant Material: Constructed with PC flame-retardant material for enhanced safety and reliability.
- DIN Rail Mounting: Easy installation on standard 35MM DIN rails with securing clips.
- Single Channel Wiring: Tunnel-type wiring port for secure connections.
4. Specifications
Refer to the tables below for detailed specifications of each model.
General Product Parameters:
| Parameter | Value |
|---|---|
| Poles | 1P+N |
| Rated Voltage | AC230V |
| Rated Frequency | 50/60Hz |
| Rated Insulation Voltage | 400V |
| Measurement Accuracy | ±1% |
| Installation | 35MM Din Rail |
| Protection Class | IP20 |
| Operating Temperature | -50-55℃ |
| Certification | CE |
Model-Specific Protection Ranges:
| Feature | EAPDX-40 | EAPDX-63 | EAPDX-63VAE-RGB |
|---|---|---|---|
| Over Current Protection Range | 1-40A | 1-63A | 1-63A (Adjustable) |
| Over Voltage Protection Range | 240~300V | 240~300V | 230~300V |
| Under Voltage Protection Range | 140~200V | 140~200V | 80~210V |
| Start/Reset Delay | 1s~300s | 1s~300s | 1s~600s |
| Display Parameter | Voltage, Current | Voltage, Current | Voltage, Current, kWh |
5. Installation
Important: Installation must be performed by a qualified electrician. Ensure all power is disconnected before beginning installation.
- Mounting: Mount the protector onto a standard 35MM DIN rail. Ensure it is securely fastened using the integrated clips.
- Wiring (EAPDX-40/63 & EAPDX-40/63-RG):
- Connect the incoming Neutral (N) wire to the 'IN N' terminal.
- Connect the incoming Live (L) wire to the 'IN L' terminal.
- Connect the outgoing Neutral (N) wire to the 'OUT N' terminal.
- Connect the outgoing Live (L) wire to the 'OUT L' terminal.
Figure 7: Wiring diagram for EAPDX-40/63 and EAPDX-40/63-RG models. Ensure correct connection of Neutral (N) and Live (L) wires for both input and output. - Wiring (EAPDX-63VAE-RGB):
- Connect the incoming Neutral (N) wire to the 'IN N' terminal.
- Connect the incoming Live (L) wire to the 'IN L' terminal.
- Connect the outgoing Neutral (N) wire to the 'OUT N' terminal.
- Connect the outgoing Live (L) wire to the 'OUT L' terminal.
Figure 8: Wiring diagram for EAPDX-63VAE-RGB model. Pay attention to the IN and OUT terminals for Neutral (N) and Live (L). - Secure Connections: Ensure all wire connections are tight and secure within the tunnel-type wiring ports.
- Power On: Once wiring is complete and verified, restore power to the circuit.
6. Operation
The EAPDX series protectors feature a digital display and control buttons for setting parameters. The specific functions and setting menus vary slightly between models.
6.1 Front Panel Controls (EAPDX-40/63 & EAPDX-40/63-RG)
- Voltage Display (Top): Shows real-time voltage.
- Current Display (Bottom): Shows real-time current.
- Power Indication (Green LED): Illuminates when power is supplied.
- Adjustment Key (Up/Down Arrows): Used to navigate menu options and adjust values.
- SET Button: Press and hold for more than 3 seconds to enter the setting state. Short press to confirm selection.
- Power Button (Circle with line): Press and hold to turn on/off the power output and protection functions.
6.2 Front Panel Controls (EAPDX-63VAE-RGB)
- Voltage Display (Top): Shows real-time voltage.
- Current Display (Middle): Shows real-time current.
- Electricity Display (Bottom): Shows real-time kWh consumption.
- Power Indication (Green LED): Illuminates when power is supplied.
- Adjustment Key (Up/Down Arrows): Used to navigate menu options and adjust values.
- SET Button: Press and hold for more than 3 seconds to enter the setting state. Short press to confirm selection.
- Power Button (Circle with line): Press and hold to turn on/off the power output and protection functions.
6.3 Setting Parameters (EAPDX-40/63 & EAPDX-40/63-RG)
To adjust protection parameters:
- Press and hold the SET button for more than 3 seconds to enter the setting menu.
- Use the Up/Down Arrow buttons to navigate through the parameters (P-1 to P-6).
- Short press SET to select a parameter.
- Use the Up/Down Arrow buttons to adjust the value.
- Short press SET to confirm the new value and move to the next parameter or exit.
- To exit the setting menu, wait for a few seconds without pressing any buttons, or press and hold the Power button.
Parameters and Default Values:
- Over-Voltage Protection (P-1): AC240~300V (Default: 270V)
- Under-Voltage Protection (P-2): AC140~200V (Default: 170V)
- Over-Current Protection (P-3): 1~40A (EAPDX-40) / 1~63A (EAPDX-63) (Default: 40A/63A)
- Startup Delay Time (P-4): 1~300s (Default: 5s)
- Relay Reset Time (Over/Under Voltage) (P-5): 1~300s (Default: 30s)
- Over Current Reset Time (P-6): 1~300s (Default: 30s)
6.4 Setting Parameters (EAPDX-63VAE-RGB)
To adjust protection parameters:
- Press and hold the SET button for more than 3 seconds to enter the setting menu.
- Use the Up/Down Arrow buttons to navigate through the parameters.
- Short press SET to select a parameter.
- Use the Up/Down Arrow buttons to adjust the value.
- Short press SET to confirm the new value and move to the next parameter or exit.
- To exit the setting menu, wait for a few seconds without pressing any buttons, or press and hold the Power button.
Parameters and Default Values:
- Power-on delay time (Pt): 1s-600s
- Protection recovery delay (tE): 1s-600s
- Over-voltage protection setting (UU): 230V-300V (Default: 280V)
- Over-voltage recovery setting (OUr): 225V-295V
- Undervoltage protection setting (UL): 80V-210V (Default: 160V)
- Undervoltage recovery setting (ULr): 85V-215V
- Over-under-voltage protection action delay time (UUt): 0.1s-10s
- Calibration Voltage Value (URd): -9.9V~9.9V
- Over current protection value (OL): 1-63A (Default: 50A)
- Overcurrent protection action time (OCt): 0.1s-60s
- Overcurrent protection continuous times (OCt): 0-20
- Current Calibration (CRd): -9.9A~9.9A
- Power range setting (PE): 1-999
- Reset mode (CLP): 000 (Reset mode)
- Reset power level (CLP): 000 (Reset power level)
- Restore Factory Settings (CLP): 000 (Restore Factory Settings)
6.5 Video Demonstration
Watch this video for a visual guide on how to set parameters on the EARU EAPDX-40 protector.
7. Maintenance
- Keep the device clean and free from dust and debris.
- Do not use abrasive cleaners or solvents. Wipe with a soft, dry cloth.
- Regularly check wiring connections for tightness and signs of wear.
- Ensure adequate ventilation around the device to prevent overheating.
- No user-serviceable parts inside. Refer to qualified personnel for repairs.
8. Troubleshooting
If you encounter issues with your EARU protector, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on | No input power; incorrect wiring; internal fault. | Check power supply to the 'IN' terminals. Verify wiring according to diagrams. If problem persists, consult a qualified electrician. |
| Power output is OFF (display shows OFF) | Over/Under voltage or over-current condition detected; manual shutdown. | Check voltage and current levels. If within normal range, press the Power button to manually turn on. If fault persists, check connected load. |
| Settings not saving or resetting unexpectedly | Incorrect setting procedure; power interruption during save; internal memory issue. | Ensure you press SET to confirm each parameter change. If settings still reset, try restoring factory settings (refer to operation section) and reconfigure. If the issue persists, the device may be faulty. |
| Inaccurate voltage/current readings | Calibration error; external interference. | For EAPDX-63VAE-RGB, check the Calibration Voltage Value (URd) and Current Calibration (CRd) settings. If necessary, perform a calibration with a known accurate meter. |
User Tips:
- When adjusting settings, ensure you press the SET button to confirm each change to prevent settings from reverting.
- If you experience issues with settings not being saved or resetting, try performing a factory reset (CLP 009 for EAPDX-63VAE-RGB, or "Keep Pressing to turn on/off the power output & function of protections" then "Restore Factory Settings" for EAPDX-40/63 models) and then re-enter your desired parameters.
9. Warranty and Support
For warranty information or technical support, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase.
