Shandong Heze Sanyi Biological Engineering Co., Ltd. is one of the leading manufacturers and suppliers of pv grid connection box in China. With abundant experience, we are committed to providing high quality equipment made in China with competitive price. Welcome to buy durable pv grid connection box from our factory. Customized orders are welcome.
Product Overview
The photovoltaic grid-connected box serves as the AC/DC power distribution and safety protection terminal of the whole photovoltaic system, installed between smart inverters and factory public grid connection points. It receives three-phase AC power output from inverters and realizes power collection, branch protection and metered grid connection. Equipped with electrical components from top domestic brands including Chint, Delixi and Changsong, the standard three-phase one-input-one-output 63A model perfectly matches the output capacity of 30kW inverters for single fermentation tanks. As a safety isolation barrier between photovoltaic systems and factory power grids, it stably controls photovoltaic power transmission and eliminates safety risks such as electric leakage, short circuit and reverse power transmission, adapting to harsh operating environments of fermentation and chemical industrial plants.
Core Supporting Accessories
Grid-connected Box Body
Integrated thickened metal protective cabinet, standard three-phase one-input-one-output 63A grid-connected box;
Built-in Components
Brand circuit breakers, leakage protectors, anti-islanding switches, lightning protection modules, conductive copper bars;
Connecting Cables
ZRC-YJV-0.6/1kV-4×16mm² flame-retardant cables (two sections: inverter to grid box, grid box to grid connection point);
Installation Accessories
Wall-mounted brackets, waterproof sealing strips, grounding flat iron, insulating protective covers.
Craft & Product Advantages
- Precise Craft of Top-tier Components: All internal electrical parts adopt mature industrial-grade accessories from Chint, Delixi and Changsong with solid raw materials. Thickened conductive copper bars minimize power loss to avoid extra energy consumption during operation. Branch protection switches act sensitively to cut off circuits instantly upon faults.
- Anti-corrosion Durable Cabinet Craft: The cabinet is integrally stamped with thick cold-rolled steel plate and coated with multi-layer anti-corrosion paint, featuring waterproof and dust-proof sealing structure to resist water vapor and acid-alkali mist in workshops. The robust impact-resistant cabinet is not easy to deform or damage, maintaining stable operation for long-term indoor/outdoor installation without accidental tripping.
- Full-range Electrical Protection Craft: Integrates six protection functions including overload, short circuit, electric leakage, lightning surge, reverse power transmission prevention and island linkage protection. Equipped with lightning protection modules to resist high voltage impact in thunderstorms and prevent damage to inverters and PV arrays caused by lightning strikes. Anti-reverse charging devices block reverse current from grid to PV modules to protect equipment and operators.
- Stable Industrial Operation Craft: Internal wiring layout is optimized for industrial photovoltaic scenarios with neatly partitioned cables and sufficient heat dissipation channels to avoid overheating under long-term full-load operation. The 63A three-phase one-input-one-output specification precisely matches fermentation tank photovoltaic systems with high power matching degree and no redundant capacity waste, complying with factory standardized grid connection codes.
- Easy Operation & Maintenance Craft: Quick-opening maintenance door design with clearly marked partitioned internal components for convenient fault inspection and component replacement. Standardized grounding terminals simplify grounding construction and meet explosion-proof safety construction standards of chemical and fermentation workshops.
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