1. Introduction
The EARU Electric EAPDX series is a range of adjustable digital over/under voltage and over current protection relays designed for single-phase AC circuits. These devices provide comprehensive protection for electrical equipment by automatically disconnecting the power supply when voltage or current exceeds preset limits and restoring it once conditions return to normal. Certain models also feature a kWh meter for energy consumption monitoring. They are designed for easy installation on a DIN rail.
2. Key Features
- Over-voltage protection
- Under-voltage protection
- Over-current protection
- Automatic recovery (self-resetting)
- Real-time Voltage display (voltage measurement)
- Real-time Current display (current measurement)
- kWh display (energy consumption measurement) on EAPDX-63VAE-RGB model
3. Product Models Overview
The EAPDX series offers several models with varying current capacities and display parameters:
Figure 1: Product Style Overview
| Feature | EAPDX-40 | EAPDX-63 | EAPDX-63VAE-RGB |
|---|---|---|---|
| Model Number | EAPDX-40, EAPDX-40-RG | EAPDX-63, EAPDX-63-RG | EAPDX-63VAE-RGB |
| Over Current Protection Range | 1-40A | 1-63A | 1-63A |
| 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 |
4. Technical Specifications
General Specifications (Applicable to most models):
- Rated Voltage: AC240V (220V nominal)
- Rated Frequency: 50Hz/60HZ
- Poles: 1P+N
- Breaking Capacity: 6kA
- Electric Life: ≥20000 Cycles
- Standard: IEC60898-1/IEC60947-2
- Tripping Time: ≤0.1S
- Certification: CE
- Tripping Curve: C Curve
- Display Type: Digital Only
- DIY Supplies: Electrical
- Battery Included: No
- High-concerned chemical: None
- Error in real-time current, voltage: ≤5%
Dimensions:
EAPDX-63 Dimensions
- Width: 38mm (1.5in)
- Height: 86mm (3.39in)
- Depth: 65mm (2.56in)
- DIN Rail Height: 45mm (1.77in)
EAPDX-63VAE-RGB Dimensions
- Width: 38mm (1.5in)
- Height: 86mm (3.39in)
- Depth: 68mm (2.68in)
- DIN Rail Height: 46mm (1.81in)
5. Setup & Installation
Safety Warning: Installation should only be performed by qualified personnel. Ensure power is disconnected before installation to prevent electric shock.
Mounting:
The EAPDX series protectors are designed for DIN rail mounting. Snap the device onto a standard 35mm DIN rail in your electrical panel.
Wiring Diagram:
Connect the device according to the wiring diagrams below. Ensure correct connection of the Neutral (N) and Live (L) wires for both input (IN) and output (OUT) terminals.
EAPDX-63 Wiring
Figure 2: EAPDX-63 Wiring Diagram
EAPDX-63VAE-RGB Wiring
Figure 3: EAPDX-63VAE-RGB Wiring Diagram
6. Operating Instructions
The device features a digital display and control buttons (UP, DOWN, SET, Power On/Off) for parameter adjustment. Refer to the video demonstration for a visual guide on setting parameters.
Video 1: Demonstration of device operation and setting adjustments.
Entering Setting Mode:
Press and hold the 'SET' button for more than 3 seconds to enter the setting state. Use the UP and DOWN buttons to adjust values and 'SET' to confirm and move to the next parameter.
Setting Menu for EAPDX-40/63 Models:
Figure 4: EAPDX-40/63 Function Setting Menu
- 220: Display voltage (default/current reading)
- P-1: Overvoltage setting (Adjustable range: 240-300V-OFF)
- P-2: Undervoltage setting (Adjustable range: 140-200V-OFF)
- P-3: Overcurrent setting (Adjustable range: 1A-40A/63A/80A, depending on model)
- P-4: Reset/start delay (Adjustable range: 1s-300s)
- P-5: Relay recovery delay (Adjustable range: 1s-300s)
- P-6: Overcurrent Recovery Delay (Adjustable range: 1s-300s)
Setting Menu for EAPDX-63VAE-RGB Model:
Figure 5: EAPDX-63VAE-RGB Settings Menu
- Pt: Power-on delay time (1s-600s)
- rE: Protection recovery delay (1s-600s)
- 30: Over-voltage protection setting (230V-300V)
- oUr: Over-voltage recovery setting (225V-295V)
- nO: Undervoltage protection setting (80V-210V)
- Urr: Undervoltage recovery setting (85V-215V)
- Uct: Over-under-voltage protection action delay time (0.1s-10s)
- URd: Calibration Voltage Value (-9.9V~9.9V)
- oFF: Over current protection value (1-63A)
- oLt: Overcurrent protection action time (0.1s-60s)
- Ctt: Overcurrent protection continuous times (0-20)
- CrA: Current Calibration (-9.9A~9.9A)
- PC: Power range setting (1-999)
- CLP: Reset mode (CLP 000 Reset setting, CLP 006 Reset power level, CLP 009 Restore Factory Settings)
7. Maintenance
- Regularly inspect the device for any signs of physical damage or loose connections.
- Keep the device clean and free from dust and moisture.
- Ensure proper ventilation around the device to prevent overheating.
- Do not attempt to open or repair the device yourself. Refer to qualified technicians for service.
8. Troubleshooting
- Device not powering on: Check the input power supply and ensure all wiring connections are secure.
- Device trips frequently: Verify that the over-voltage, under-voltage, and over-current protection settings are appropriate for your load and power supply. Adjust delay times if necessary to avoid nuisance tripping.
- Incorrect voltage/current readings: Check the calibration settings (URd for voltage, CrA for current) and adjust if needed. Ensure the device is correctly wired.
- Device does not reset automatically: Check the recovery delay settings (P-4/P-5/rE) and ensure they are configured for automatic recovery.
9. User Tips
- When setting protection parameters, always start with values slightly above or below your normal operating range to prevent immediate tripping.
- Utilize the adjustable delay times (Power-on delay, Recovery delay) to prevent false trips during momentary fluctuations or when equipment starts up.
- For models with kWh display, periodically monitor energy consumption to identify potential inefficiencies or unexpected load changes.
- Always ensure the device's current rating matches or exceeds the maximum expected load current to prevent damage to the protector.
10. Warranty & Support
For any technical assistance, warranty claims, or product inquiries, please contact the seller or manufacturer directly. Keep your purchase records for reference.
