QIHANG QHU3 Industrial Lightning Protection Device (SPD) – 40kA

The QIHANG QHU3 Industrial Lightning Protection Device is a surge protective solution designed to protect low-voltage electrical systems from lightning-induced surges and switching transients. With a 40kA surge discharge capacity, it helps reduce the risk of damage to sensitive equipment and improves system reliability in industrial and commercial power networks.

The QHU3 series is commonly installed in distribution boards and control panels as part of a coordinated protection system, limiting transient overvoltage and supporting safer, more stable operation of downstream loads. Its compact, panel-friendly design makes it suitable for a wide range of applications where continuous protection and easy integration are required.

Key Features

• Model: QHU3

• Surge discharge capacity: 40kA

• Designed for lightning surge and transient overvoltage protection

• Suitable for distribution boards and control panels

• Industrial-grade construction for stable long-term operation

• OEM / ODM support available (if required)

Typical Applications

• Industrial distribution panels and control cabinets

• Commercial building power distribution

• Equipment protection for automation systems, drives, and control circuits

• Areas with frequent lightning activity or unstable power networks