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In the world of solar power, the reliability of every component directly impacts the system’s efficiency and operational safety. Leveraging our extensive experience in the electrical industry, GRL provides a complete suite of high-quality core protection products for solar systems, ensuring your green energy is produced safely and efficiently.
Designed for Solar, Engineered for Excellence:
Our solar fuses, solar disconnectors, surge protectors, changeover switches, and combiner boxes are all optimized for the high-voltage DC and unique environmental characteristics of photovoltaic systems. Each product strictly adheres to international solar standards, effectively handling challenges like high radiation, extreme temperatures, and transient overvoltages to ensure your system runs smoothly.
Comprehensive Safety and Protection:
Our products form multiple lines of defense for your solar system. Solar fuses provide fast and reliable overcurrent protection; solar disconnectors ensure safe isolation during maintenance and emergencies; and surge protectors effectively guard against damage from lightning strikes and power surges. The synergy of these products creates an impenetrable safety barrier.
Precision Manufacturing You Can Trust:
GRL is committed to high-standard manufacturing processes and strict quality control. From the careful selection of raw materials to rigorous testing of finished products, we ensure every item has superior reliability and a long service life. By choosing GRL, you’re choosing a stable, efficient, and worry-free future for green energy.
GRL offers a variety of DC switching solutions
DNH19 Isolation Switch are designed for DC1500V application , passed TUV experiment
GRL DNH19 series DC1000V 1500V Isolating switch ,The DNH19 range of Isolating switch from 100A to 1250A is specially DC applications.
The DNH19 Isolating switch are designed to offer efficient and reliable performance even in high ambient temperatures and harsh environmental conditions. They are virtually maintenance-free. The unique contact design results in a lower temperature rise.
• DNPVF1Fuse Holder
DNPVF1 Fuse holder is suitable for use with 10*38mm,14*51mm and 22*58mm cylindrical gPV fuse Links ，Which are widely used in photovoltaic combiner boxes and other DC fields.
• DNPVF1-32LFuse Holder
DNPVF1-32L Fuse holder is suitable for use with 10*85mm and 14*85mm cylindrical gPV fuse Links ，Which are widely used in photovoltaic combiner boxes and other DC fields.
• Combine Box
The photovoltaic DC combiner box can be connected to multiple solar photovoltaic arrays at the same time. The current is pooled into the inverter, which is suitable for 1000VDC and 1500VDC circuits.
GRL offers a variety of DC Fuse Holders :
• 10*38/14*51 1000VDCCylindrical Fuse
10*38/14*51Cylindrical Fuse is used with the Fuse Holder of DNPVF1, have breaking protection function in the circuit. It is suitable for 1000VDC circuit with the maximum current up to 63A.
• 10*85/14*851500VDC Cylindrical Fuse
10*85/14*85 Cylindrical Fuse is used with the Fuse Holder of DNPVF1, have breaking protection function in the circuit. It is suitable for 1000VDC circuit with the maximum current up to 63A.
Widely used in the DC combiner box of DC1500V/1000V photovoltaic system
Widely used in photovoltaic combiner boxes, inverters, on grid-connected cabinets and photovoltaic box substations.
Widely used in photovoltaic systems, the combiner box is located in the middle of the photovoltaic module and the inverter, which plays a role of confluence.
An isolation switch acts as a circuit breaker on your mains electrical supply, so that any electrical work (such as an EV charger or solar installation) that is going to take place within a property can be completed safely by a private electrician or anyone doing electrical work on your home.
A DC isolator is a manual disconnection switch that stops electricity generated by a PV system flowing through the system to make it safe in emergency situations or to allow for servicing and maintenance.
A rooftop DC isolator is a switch situated adjacent to a solar panel array intended as an additional safety mechanism. Manually operated, the switch shuts off DC current between the solar panels and the solar inverter. However, these little boxes are one of the most common single causes of rooftop solar system fires.
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