Table of Contents
Product Overview
The QJSPD-PV40 DC Surge Protective Device (SPD) is engineered for photovoltaic applications where reliable protection against lightning-induced surges and switching transients is critical. With a 40kA discharge capacity and 600V DC rating, it provides effective protection for sensitive PV system components such as inverters, DC breakers, and monitoring equipment.
The device integrates individually protected MOV modules, clear optical and mechanical status indication, and optional remote signaling contact, making it suitable for both residential and commercial solar installations.
Key Features & Benefits
40kA high surge discharge capacity for photovoltaic DC circuits
600V DC rated voltage, suitable for common PV system designs
Advanced self-developed MOV technology for stable and long service life
Thermal disconnect device for each individual protection module
Optical and mechanical status indicators for fast visual inspection
Optional floating remote indication contact for system monitoring
Consistent pluggable design, including N/PE spark gap compatibility
Compatible with most PV network configurations
35mm DIN rail mountable for quick installation in PV enclosures
Technical Specifications
Typical Applications
Solar PV combiner boxes
Photovoltaic DC distribution panels
Solar inverter DC input protection
Rooftop and ground-mounted PV power plants
Residential, commercial, and industrial solar systems
FAQ
It provides Type DC surge protection against lightning-induced surges and transient overvoltages in photovoltaic systems.
The device includes optical and mechanical status indicators that clearly show the operational state of each protection module.
Yes. The QJSPD-PV40 supports an optional floating remote indication contact, allowing integration with monitoring or alarm systems.
Interested in this product? Please fill out the form below to receive a detailed quote or more information.
