TOMZN TOVPD1-63-EC Over and Under Voltage Protection Device
The TOMZN TOVPD1-63-EC Over and Under Voltage Protection Device is a smart, automatic voltage controller designed to protect electrical appliances, equipment, and power systems from dangerous voltage surges or drops. When the input voltage exceeds or falls below your preset range, the relay disconnects the load immediately to prevent damage. Once voltage stabilizes, it automatically reconnects the power after a short delay, ensuring safety and system reliability.
This model supports up to 63A, making it ideal for home distribution panels, industrial automation, and control circuits. The bright LED digital display shows real-time voltage and status, while the adjustable settings allow users to fine-tune upper and lower limits and time delay to suit their requirements.
⚙️ Key Features & Highlights:
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⚡ Automatic Over-Voltage & Under-Voltage Protection
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⚙️ Adjustable Threshold Settings: Easily set your upper and lower cut-off points.
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⏱️ Adjustable Delay Time: Prevents false triggers and ensures system stability.
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💡 Digital LED Display: Real-time monitoring of voltage and device status.
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🔋 Rated Current: 63A for single-phase AC 230V systems.
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🔐 Auto Recovery Function: Reconnects automatically once voltage normalizes.
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🧠 Compact DIN-rail Mount Design: Easy integration into distribution boxes.
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🔗 Compatible With: Power Supply Modules and Relay Boards.
⚙️ Technical Specifications:
| Parameter | Specification |
|---|---|
| Model | TOMZN TOVPD1-63-EC |
| Rated Current | 63A |
| Operating Voltage | AC 230V ±10% |
| Over-Voltage Setting Range | 230V–300V |
| Under-Voltage Setting Range | 140V–210V |
| Delay Time Range | 1–600 seconds |
| Display Type | LED Digital Display |
| Mounting Type | 35mm DIN Rail |
| Response Time | < 1 second |
| Frequency | 50/60Hz |
| Material | Flame-retardant ABS |
| Working Temperature | −20°C to +55°C |
⚙️ Working Principle:
The TOVPD1-63-EC continuously monitors the input voltage of your circuit. When voltage rises above or falls below the preset limits, it disconnects the load instantly through its internal relay. Once voltage returns to normal, it reconnects after the adjustable delay. This ensures your motors, air conditioners, refrigerators, and sensitive electronics remain safe from transient surges and brownouts.
⚙️ Applications:
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🏠 Home distribution panels and smart homes
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🏭 Industrial machinery and automation systems
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⚙️ Motor and compressor protection
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💡 Smart energy management systems
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🔋 Power supply and inverter protection
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⚡ Compatible with Arduino Automation Projects for voltage monitoring
⚙️ Precautions:
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⚠️ Ensure correct wiring (phase and neutral).
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⚠️ Do not exceed rated current (63A).
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⚠️ Adjust thresholds according to equipment requirements.
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⚠️ Avoid installation in damp or high-temperature areas.
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⚠️ Always turn off power before adjusting settings.
▶️ YouTube Tutorial Video:
Watch: How to Set TOMZN Over & Under Voltage Protector Relay (TOVPD1-63-EC)
🔗 Internal Links:
🔹 Product Summary:
The TOMZN TOVPD1-63-EC Over/Under Voltage Protector Relay is an intelligent and reliable protection device for 230V AC circuits. With adjustable settings, real-time LED monitoring, and automatic recovery, it provides comprehensive voltage control for homes, workshops, and industrial systems. Protect your valuable electrical equipment from surges, sags, and voltage instability with this advanced TOMZN smart relay module.
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