QIHANG QHM1HU-400 3P AC Solar Photovoltaic Molded Case Circuit Breaker

The QIHANG QHM1HU-400 3P AC Solar Photovoltaic Molded Case Circuit Breaker is specially designed for AC-side protection in solar photovoltaic power systems. Engineered for low-voltage distribution applications up to 400V, this breaker ensures stable and dependable protection for PV inverters, combiner boxes, and AC distribution panels.

The QHM1HU series provides reliable overload and short-circuit protection, helping safeguard photovoltaic equipment and downstream electrical systems from fault damage. Its 3-pole configuration supports balanced three-phase operation commonly used in solar installations.

With a durable molded case structure and industrial-grade internal components, the breaker is built to withstand demanding operating environments. It is suitable for industrial solar plants, commercial rooftop systems, and distributed PV projects requiring consistent protection performance.

Key Features

• Model: QHM1HU-400

• Poles: 3P

• Rated voltage: 400V

• Designed for AC solar photovoltaic systems

• Reliable overload and short-circuit protection

• Durable molded case construction

• Suitable for PV distribution panels and inverter protection

Typical Applications

• Solar photovoltaic AC distribution panels

• Inverter output protection

• Commercial and industrial PV systems

• Distributed solar energy projects

• OEM and panel builder solar solution