Molded Housing Isolation Switch QHM1DC-250

Molded Housing Isolation Switch QHM1DC-250

QHM1DC-250 3P DC molded case isolator switch is designed for safe disconnection and isolation in solar photovoltaic DC systems. It features a compact structure, reliable operation, and strong DC arc-extinguishing capability.The switch is suitable for PV combiner boxes, solar inverters, DC distribution cabinets, and energy storage systems, providing stable performance and enhanced safety for modern solar power applications.

The QIHANG QHM1DC-250 3P Photovoltaic DC Molded Case Circuit Breaker is specially designed for protection and isolation in photovoltaic DC power systems. Engineered for high-voltage DC applications up to 1140V, this breaker provides stable and dependable protection for solar combiner boxes, DC distribution panels, and photovoltaic power systems.

The QHM1DC series offers reliable overload and short-circuit protection with a breaking capacity of 50kA, helping safeguard photovoltaic equipment and electrical circuits from potential fault damage. Its 3-pole configuration ensures stable operation and effective circuit isolation in DC distribution systems.

With a durable molded case structure and high-quality copper conductive components, the breaker is designed to withstand demanding operating conditions while maintaining consistent performance. It is suitable for solar power stations, commercial photovoltaic installations, and industrial energy systems that require reliable DC protection.

Key Features

• Model: QHM1DC-250
• Poles: 3P
• Rated voltage: 1140V
• Breaking capacity: 50kA
• Trip unit technology: Thermal-Magnetic, Electronic
• Material: Plastic housing with copper conductor
• Designed for photovoltaic DC power systems
• Reliable overload and short-circuit protection

Typical Applications

• Solar photovoltaic DC distribution panels
• PV combiner boxes
• Solar power stations and distributed PV systems
• Industrial DC electrical systems
• OEM photovoltaic equipment and panel builder solutions

Key attributes
Breaking Capacity 50KA Rated Voltage 1140V
Trip Unit Technology Thermal-Magnetic, Electronic Rated Frequency (Hz) 50/60HZ
Material Plastic, Copper Place of Origin Zhejiang, China
Model Number QHM1DC-250 Brand Name QIHANG
Function Isolation Support ODM OEM
Application Household electronic devices for the industry Rod 2
Short name of the equipment Photovoltaic circuit breaker Warranty One year
Packaging and delivery
Selling Units Single item

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