IP65 Waterproof 3-String PV Combiner Box

Our 3-String PV DC Combiner Box is a professional solution for medium-scale solar photovoltaic systems, designed to safely combine DC outputs from three solar panel strings while providing comprehensive protection. Featuring an IP65 waterproof and dustproof enclosure, it is ideal for residential rooftop, small-to-medium commercial, and off-grid solar power systems.

Built with high-quality components including individual string fuses/DC breakers, 3-channel surge protection devices (SPD), and a dedicated grounding terminal, this combiner box effectively safeguards your solar array from overcurrent, short circuits, and lightning strikes. The transparent cover allows easy visual inspection of internal components, while MC4-compatible connectors ensure quick and secure wiring.

Certified with CE, our 3-string PV combiner box supports 600V/1000V DC systems and is available in 3-in 1-out configuration. It is the perfect choice for optimizing your solar power system's performance and reliability, protecting your investment for years to come.

Features

·  Protection Level: IP65 waterproof and dustproof ABS/PC enclosure, UV-resistant and high/low temperature resistant, suitable for outdoor installation

·  3-String Design: Supports 3 PV module string inputs and 1 output, ideal for medium-scale PV systems

·  Comprehensive Protection:

· Independent fuse/DC breaker per string for overcurrent/short-circuit protection

· 3-channel surge protection devices (SPD) to guard against lightning and surge impacts

· Standard grounding terminal for safe system grounding

·  Easy Operation: Transparent cover for visual inspection of internal components, compatible with MC4 photovoltaic connectors

·  Certifications: CE certified, compliant with international electrical safety standards, supports 600V/1000V DC systems

·  Durable Structure: Lockable transparent cover to prevent misoperation, long service life

Applications

·  Residential PV Systems: Medium-sized household solar power stations, converging DC outputs from 3 PV module strings

·  Commercial PV Systems: Small-to-medium industrial/commercial rooftop PV systems

·  Off-Grid Solar Systems: RV, marine, and remote area off-grid PV for stable convergence and protection

·  PV Energy Storage Systems: Works with energy storage batteries to realize DC-side 3-string convergence and safety protection

·  Solar Street Lights/Monitoring: Small DC PV power supply scenarios, simplifying wiring and protection