On December 3-4 local time, the European photovoltaic industry event - Solar Solutions D ü sseldorf 2025- grandly kicked off at the Dusseldorf Exhibition Center.

As a professional manufacturer in the field of safety protection devices for optical storage and charging systems, PROJOY ELECTRIC has made a heavyweight debut with its full range of star products, showcasing its leading technology and innovative achievements in fast shutdown, optimizer, isolation switch, and intelligent distribution box.

Chain level fast shutdown: building a "life line" for roof safety

The PROJOYPFS-EL series cascade fast shutdown is an innovative system solution developed by PROJOY to address safety issues in solar photovoltaic systems. It can quickly cut off power in emergency situations, thereby protecting the system from potential electrical risks.

The PEFS-EL series has multiple current level specifications, with options of 1-10 series specifications, to meet the different needs of customers. Built in high-precision temperature sensor, automatically detects the ambient temperature, and will automatically cut off when the temperature exceeds 70 degrees Celsius. The built-in DC isolation switch has a dedicated arc extinguishing device that can complete the arc extinguishing action within 5ms. PROJOY, with its fast response and efficient management, has widely served customers worldwide and provided solid guarantees for the safe operation of photovoltaic systems.

External isolation switch: safe isolation, more convenient operation

The PROJOYPEDS series external isolation switches are uniformly made of flame-retardant and UV resistant materials, creating an integrated waterproof box body. The shell has super strong resistance to ultraviolet (UV) radiation, effectively preventing embrittlement and aging, and is durable and reliable. At the same time, the whole machine reaches the IP66 protection level. In addition to standard high-quality waterproof cable connectors or MC4 connectors, industrial grade gland heads can also be selected and equipped with dust plugs and other parts. The accessories are complete, which can effectively prevent rainwater and dust from entering and avoid safety hazards such as short circuits and arcs caused by humidity. Its humanized design and reliable product quality greatly enhance the convenience and security of system maintenance, making it an ideal choice for professional installers and maintenance teams.

Smart meter+electrical box: data-driven, empowering smart energy management

Under the trend of integrated photovoltaic storage and charging, PROJOY has simultaneously launched a photovoltaic dedicated distribution box with integrated smart meters. This meter supports bidirectional metering, 485 communication, and comes with an LCD wheel display screen that can display various electrical parameters such as active and reactive power.

The distribution box adopts high flame retardant materials, compact layout, and modular plug-in design as a whole, integrating not only smart meters, but also key components such as RCBO (residual current protection circuit breaker) and surge protectors, building a full chain safety protection system from power generation, storage to electricity consumption.

PROJOY is always committed to providing safe and reliable optical storage and charging protection devices and solutions for global customers. This exhibition not only showcases the company's hard power in product innovation, but also further deepens communication with European partners.

In the future, PROJOY will continue to deeply cultivate the photovoltaic market, adhering to the product concept of "Switch to Safety, with others being safer", gathering innovation and forging ahead, strengthening product iteration innovation and overseas market development, providing global customers with safer, more reliable, and more efficient photovoltaic storage and charging system solutions, actively participating in global green energy construction, and contributing professional strength to carbon neutrality goals. Editor/Yang Meiling