4P/8P Over and Under Voltage Protector

This Eton 4P/8P Over and Under Voltage Protector is a high-performance power protection device built for stable 3-phase power systems. The 4P/8P Over/Under Voltage Protector integrates SMT chip technology to realize real-time voltage monitoring and automatic self-restoring, effectively protecting electrical equipment from overvoltage and undervoltage damage. With a sturdy flame-retardant casing and clear wiring indication, it is easy to install and maintain, making it ideal for bulk procurement and long-term power system projects.

Product Parameter (Specification)

Product Feature And Application

Core Features

•  High-precision monitoring : <1% measurement accuracy ensures stable voltage data collection for the 4P/8P Over and Under Voltage Protector.

•  Self-restoring protection : Automatically cuts off power on voltage anomalies and resumes supply when voltage normalizes, reducing manual intervention.

•  Flame-retardant safety : Acid and alkali resistant ABS casing prevents fire risks from short circuits and overloads.

•  Wide-view display : 178° full field of view LED screen allows clear reading from any angle, with strong anti-interference performance.

Application Scenarios

This 4P/8P Over and Under Voltage Protector is mainly applied in:

•  Substations & power grids : Real-time monitoring of 3-phase voltage to ensure stable power transmission.

•  Industrial automation equipment : Protects production lines and robotic arms from voltage fluctuations.

•  Distribution cabinets & switchgear : Safeguards household and commercial power supply systems.

•  Residential & commercial buildings : Prevents damage to air conditioners, refrigerators and other electrical appliances.

•  Shopping malls & public facilities : Ensures continuous and safe power supply for public lighting and elevators.

Production Details

Our 4P/8P Over and Under Voltage Protector uses high-conductivity copper terminals, ensuring strong current carrying capacity and low energy loss, with simple wiring for quick installation.

Compared with ordinary products, our 4P/8P Over and Under Voltage Protector features acid and alkali resistant, oil-proof and durable casing, avoiding rough workmanship, aging and brittleness issues common in competing products.

Built with integrated circuits and SMT technology, the 4P/8P Over and Under Voltage Protector delivers stable metering and reliable self-restoring performance, with strict quality inspection from material selection to final assembly.

Passed multi-party professional inspection and obtained authoritative certification, ensuring the 4P/8P Over and Under Voltage Protector meets global safety and performance standards for bulk orders and long-term supply.

Clear wiring indication supports easy installation: connect L1/L2/L3 and N to input, then link to load via output terminals, suitable for standard 35mm DIN-rail mounting.

FAQ 

1. What is the self-restoring function of the 4P/8P Over and Under Voltage Protector?

It automatically disconnects the load when voltage is abnormal, and resumes power supply once voltage returns to normal, reducing maintenance costs for bulk procurement clients.

2. What installation method does this product support?

It uses standard 35mm DIN-rail mounting, which is fast, firm and suitable for various distribution cabinets and industrial control scenarios.

3. Is the casing of the 4P/8P Over and Under Voltage Protector flame-retardant?

Yes, it adopts flame-retardant ABS material, which is acid and alkali resistant, effectively preventing fire risks and ensuring long-term safe use.

4. What is the measurement accuracy of this voltage protector?

It reaches <1% high accuracy, providing stable and reliable voltage monitoring for 3-phase power systems.

5. What is the maximum operating current of the 4P/8P model?

The maximum operating current is 150A, meeting the power supply needs of most industrial and commercial equipment.

6. Where is this 4P/8P Over and Under Voltage Protector mainly used?

It is widely used in substations, distribution cabinets, industrial automation, residential buildings and commercial facilities, supporting wholesale and long-term cooperation.