EQUIPMENT FAMILY
Renewable energy solutions
Step-up substations, DC combiner boxes and grid-tie cabinets for solar and wind projects. Browse by the equipment needed between generation and grid connection.
HJ-CSS-R Series Renewable Energy Step-Up Substation
HJ-CSS-R step-up substations connect solar inverters or wind turbines to medium-voltage networks. Catalogue voltages extend to 1.14 kV on the generation side and 40.5 kV on the grid side. The offered transformer, protection, enclosure and coating specifications are selected for the site.
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HJ-DCB Series PV DC Combiner Box
The HJ-DCB Series PV DC Combiner Box aggregates up to 24 PV strings into a single DC output for commercial and utility-scale solar plants. It supports a maximum input voltage of 1000V DC and offers string-level fusing, surge protection, and optional anti-reverse diodes. The IP65 enclosure is available in multiple materials. Smart monitoring tracks string currents, bus voltage, and enclosure temperature via RS485 Modbus-RTU.
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HJ-GTC Series PV Grid-Tie Cabinet / Box
The HJ-GTC Series PV Grid-Tie Cabinet/Box is an AC combiner box that interfaces between solar string inverters and the utility grid. It provides circuit breaking, isolation, and Type II surge protection. Rated for 220V AC single-phase or 380V AC three-phase systems, it features a maximum discharge current of 40kA and a voltage protection level below 1.8kV. The IP65 enclosure is made of cold-rolled steel with outdoor powder coating.
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Available test reports and manuals for the equipment shown on this page.
No public report or manual is currently listed for these models. The download centre contains the available company and product literature; our team can answer questions about other documents.