1. Introduction
This manual provides essential information for the safe installation, operation, and maintenance of the SSUCA 63A Single Phase Voltage Protector (Model AVP-63). This device is designed to safeguard electrical equipment from damage caused by over-voltage, under-voltage, over-current, and short-circuit conditions in a 240V single-phase AC system. It features automatic re-connection and adjustable protection parameters.
2. Safety Information
WARNING: Electrical shock hazard. Installation and maintenance should only be performed by qualified personnel.
- Always disconnect power before installing or servicing the device.
- Ensure proper wiring according to local electrical codes and the wiring diagram provided.
- Do not operate the device if it is damaged or appears to be malfunctioning.
- Keep the device away from moisture, dust, and corrosive environments.
- Verify that the voltage and current ratings of the protector match your application requirements.
3. Product Features
- Comprehensive Protection: Monitors and protects against over-voltage, under-voltage, over-current, and short-circuit conditions.
- Automatic Re-connection: Restores power supply automatically once voltage and current stabilize within safe parameters.
- Adjustable Parameters: Allows users to customize voltage and current thresholds for tailored protection.
- Real-time Display: Dual LED display shows real-time voltage and current values.
- LED Status Indicators: Visual indicators for over-voltage (>V), under-voltage (
- DIN Rail Mounting: Designed for secure and space-efficient installation on a 35mm DIN rail.
- High Current Rating: Supports up to 63A maximum current.
4. Package Contents
The package should contain the following item:
- 1 x SSUCA 63A Single Phase Voltage Protector (Model AVP-63)
5. Installation and Wiring
The SSUCA AVP-63 is designed for 35mm DIN rail mounting. Ensure all power is disconnected before proceeding with installation.
- Mounting: Securely attach the voltage protector to a standard 35mm DIN rail in your electrical panel.
- Wiring: Connect the incoming single-phase power supply to the 'IN' terminals (N for Neutral, L for Live) and the outgoing load to the 'OUT' terminals (N for Neutral, L for Live). Refer to the wiring diagram on the device for correct connections.
- Tighten Connections: Ensure all terminal screws are securely tightened to prevent loose connections and overheating.
- Verify: Double-check all wiring before restoring power.
Figure 1: Front view of the SSUCA AVP-63 Voltage Protector, illustrating input/output terminals, LED display, and control buttons.
Figure 2: Side view of the SSUCA AVP-63, showing its compact design and DIN rail compatibility.
6. Operation and Settings
Once power is restored, the device will display real-time voltage and current. The LED indicators provide immediate status feedback.
6.1. LED Indicators
- V> (Red): Illuminates when over-voltage condition is detected.
- <V (Red): Illuminates when under-voltage condition is detected.
- >A (Red): Illuminates when over-current condition is detected.
- POWER (Green): Illuminates when the device is powered on and operating normally.
6.2. Adjusting Protection Parameters
The device allows customization of protection thresholds. Use the SET button to enter the setting mode and the Up (▲) and Down (▼) buttons to adjust values.
Figure 3: Setting adjustment workflow for the SSUCA AVP-63.
- Enter Setting Mode: Press and hold the SET button for approximately 3-5 seconds until the display changes, indicating entry into the setting menu.
- Navigate Parameters: Briefly press the SET button to cycle through the adjustable parameters. Each parameter will be indicated by a code (e.g., L-1, L-2, etc.) or a flashing value.
- Adjust Values: When the desired parameter is displayed, use the Up (▲) and Down (▼) buttons to increase or decrease the value.
- Save Settings: After adjusting a value, wait for a few seconds without pressing any buttons. The device will automatically save the new setting and exit the setting mode, or you may press and hold SET again to exit.
6.3. Common Adjustable Parameters (Refer to device display for exact codes)
- Over Voltage Cutoff Value (e.g., L-3): Sets the maximum voltage threshold. If the voltage exceeds this value, the protector will disconnect the load. (Typical range: 230V-300V)
- Under Voltage Cutoff Value (e.g., L-5): Sets the minimum voltage threshold. If the voltage drops below this value, the protector will disconnect the load. (Typical range: 140V-210V)
- Over Current Value (e.g., L-9): Sets the maximum current threshold. If the current exceeds this value, the protector will disconnect the load. (Typical range: 1A-63A)
- Power-Up Delay Time (e.g., L-1): Sets the delay before power is supplied after initial power-on. (Typical range: 1-300 seconds)
- Power Recovery Time (e.g., L-2): Sets the delay before power is reconnected after a fault condition clears.
- Voltage Calibration (e.g., L-8): Allows fine-tuning of the voltage display for accuracy. Use with caution.
Figure 4: Detailed view of the LED display and control buttons.
7. Maintenance
The SSUCA AVP-63 is designed for minimal maintenance. However, regular checks can ensure optimal performance and longevity.
- Visual Inspection: Periodically inspect the device for any signs of physical damage, discoloration, or loose connections.
- Cleaning: Keep the device clean and free from dust. Use a dry, soft cloth for cleaning. Do not use liquid cleaners.
- Connection Check: Ensure all wiring connections remain tight and secure.
- Functionality Test: If possible, periodically test the protection functions by simulating an over-voltage or under-voltage condition (only if safe and feasible to do so by a qualified electrician).
8. Troubleshooting
If you encounter issues with your SSUCA AVP-63, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on / Display is blank | No input power; Incorrect wiring; Device failure | Check power supply to 'IN' terminals; Verify wiring connections; If power is present and wiring is correct, the device may be faulty. |
| Frequent disconnections | Voltage/current fluctuations; Protection thresholds set too sensitive; Overload on the circuit | Monitor voltage/current stability; Adjust protection thresholds (Over/Under Voltage, Over Current) to appropriate levels; Reduce load on the circuit. |
| Load not reconnecting after fault | Fault condition still present; Recovery delay time too long; Device malfunction | Ensure the fault condition (over/under voltage, over current) has cleared; Check Power Recovery Time setting; If problem persists, contact support. |
| Incorrect voltage/current reading | Calibration error; External interference | Perform Voltage Calibration (L-8) if available and you have a known accurate reference; Ensure stable power supply. |
9. Specifications
| Parameter | Value |
|---|---|
| Brand | SSUCA |
| Model | AVP-63 (Single Phase Voltage Protector) |
| Maximum Current Rating | 63A |
| Maximum Operating Voltage | 240 Volts AC |
| Minimum Operating Voltage | 240 Volts AC (Nominal) |
| Mounting Type | 35mm DIN Rail Mount |
| Power Source | AC |
| Display Type | Dual LED Indicator |
| Item Weight | 200 Grams |
| Product Dimensions (L x W x H) | 10 x 7 x 13 Centimeters |
| Country of Origin | China |
10. Warranty and Support
For warranty information or technical support, please refer to the product packaging or contact your retailer. Keep your purchase receipt as proof of purchase.