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DC ELECTRICAL CABINETS
DC electrical cabinets-For medium to large-scale photovoltaic systems, DC combiner boxes are essential as they simplify the cable connections between the photovoltaic panels and inverters, improve the reliability of the photovoltaic system, and make system maintenance more convenient.
IMPROVE THE RELIABILITY OF THE PHOTOVOLTAIC SYSTEM

For medium to large-scale photovoltaic systems, DC combiner boxes are essential as they simplify the cable connections between the photovoltaic panels and inverters, improve the reliability of the photovoltaic system, and make system maintenance more convenient.

Polyenergy's self-manufactured DC electrical cabinets are designed in accordance with the CNS national standard, providing customers with solar photovoltaic system products that meet standard industrial design requirements in terms of safety, simplicity, and cost-effectiveness.Users can connect solar panels of the same model in series within the allowable DC voltage range of the inverter to form a solar photovoltaic array, and then connect multiple arrays to the combiner box for DC collection.Before feeding the DC power into the inverter, the surge protector and circuit breaker in the combiner box ensure the safety of the solar photovoltaic system.
Specification
The PV BOX adopts a standard 20-foot-high container.Internal/external color of the container: RAL7001 silver gray paint.

  • The surrounding door panels, corrugated wall panels, and roof panels are made of SPA-H weather-resistant steel.
  • The four vertical columns of the container are made of SPA-H weather-resistant steel.
  • The interior sealing panels are made of SPA-H weather-resistant steel.
  • The bottom crossbeam is made of SPA-H weather-resistant steel.
  • The bottom side beam is made of Q235B material (Q235B is low-carbon steel).
  • The interior floor patterned steel plate is made of Q235 material (Q235 is ordinary carbon structural steel).
  • The total paint film thickness on the outside is 280 µm (rich zinc primer 80 µm, intermediate paint 120 µm, polyurethane topcoat 80 µm).The inner paint has a total film thickness of 140 µm (rich zinc primer 50 µm, intermediate paint 50 µm, epoxy topcoat 40 µm), and the outer paint is polyurethane two-component topcoat RAL7001.The inner paint is epoxy two-component topcoat RAL7001, and the bottom has a total film thickness of 280 µm (rich zinc primer 80 µm, asphalt paint 200 µm).

Product Structure Exploratory Diagram
DC electrical cabinets-Container Body Diagram
DC electrical cabinets-Container Exterior
Diagram

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