The DCDB (DC Distribution Box) plays a vital role in a solar PV system by safely combining and protecting DC power from multiple solar PV strings before feeding it into the inverter.

This 8-in/8-out DCDB is specifically designed for 61–80 kW solar power plants, ensuring safe distribution, surge protection, and fault isolation. It uses high-performance 1000V DC SPDs and DC fuses to guarantee maximum system reliability and safety.

Key Components Included

1. DC SPD – 1000V (4 Nos.)

   • Protects the system from lightning strikes and transient voltage surges.

   • Type 2 SPD, specifically designed for solar DC applications.

2. DC Fuse – 20A, 1000V (8 Nos.)

   • Provides individual string protection from overcurrent.

   • Prevents damage to other strings in case of a fault.

3. MC4 / Heavy-duty Terminal Blocks (Optional)

   • Safe and easy connection of incoming and outgoing DC cables.

   • Simplifies maintenance and inspection.

4. Heavy-Duty Enclosure

   • 400 × 400 mm powder-coated enclosure for durability.

   • IP65-rated for outdoor usage, resistant to dust, water, and UV exposure.

   • Compact and space-efficient design.

Functional Flow

• 8 Solar String Inputs →
  DC Fuses (20A, 1000V) for individual protection →
  DC SPDs (4 Nos.) for surge protection →
  8 Combined Outputs safely connected to the inverter.