Description
AAVAD INSTRUMENT PVT.LTD. Solar DC Distribution Boards provide safe and efficient DC power distribution with advanced protection for solar PV systems.
DC DISTRIBUTION BOARD | AAVAD
DC DISTRIBUTION BOARD | AAVAD
What is a DC Distribution Board (DCDB)?
Safe & Efficient DC Power Distribution for Solar PV Systems
A DC Distribution Board (DCDB) is a critical electrical panel used in solar photovoltaic (PV) power plants to combine DC power generated from multiple solar PV module strings into a single output. It provides essential protection and controlled power flow before DC power reaches the solar inverter.
AAVAD Instrument Pvt. Ltd. manufactures high-quality Solar DC Distribution Boards (DCDB) designed to meet stringent safety, performance, and reliability requirements of modern solar power systems.
Purpose of DCDB in Solar Power Plants
The primary purpose of a DCDB is to protect costly solar inverters and downstream equipment from electrical hazards such as:
Direct and indirect lightning surges
Overcurrent and short circuits
Reverse current flow
DC cable faults
By isolating and protecting each PV string, the DCDB ensures safe, stable, and uninterrupted solar power generation.
How is DCDB Made?
AAVAD DCDB panels are engineered with a comprehensive combination of DC protection and distribution components, including:
DC fuses for individual PV strings
Surge Protection Devices (SPD)
DC MCBs / DC isolators
Reverse blocking diodes
MC4 connectors for secure cable termination
The enclosures are manufactured using polycarbonate or CRCA sheet enclosures, offering excellent protection against dust, vermin, moisture, and harsh outdoor conditions. PG glands and MC4 connectors provide proper cable entry and exit with strain relief.
AAVAD DCDB panels comply with IEC 61439-1 standards, earning trust from reputed solar power developers and EPC companies across India.
Protection Level
Indoor DCDB Panels: IP54 or higher
Outdoor DCDB Panels: IP65 or higher
Laser-cut CRCA sheet enclosures with powder coating
7-tank pretreatment process for corrosion resistance
IP65-certified DCDB enclosures for outdoor solar installations
These protection levels ensure long-term durability in extreme solar environments.
Key Features
Complies with IEC 61439-1 and MNRE requirements
Operates safely up to 1000V DC
IP65 enclosure for outdoor use
Complete electrical safety against DC hazards
High-quality DC fuses (Ferraz Mersen / Eaton)
Reverse blocking diodes for enhanced protection
User-friendly DC termination and neat cable management
Easy cable plug-in and plug-out facility
Wall-mounted design for easy installation and maintenance
Structure
Metal-clad, totally enclosed construction
Rigid and air-insulated cubicle design
Suitable for industrial electrical environments
Designed for ambient temperatures up to 45°C
Suitable for 80% humidity and dusty conditions
Product Range
AAVAD offers a wide range of Solar DC Distribution Boards to suit various plant capacities:
1 In / 1 Out DCDB
2 In / 2 Out DCDB
4 In / 4 Out DCDB
8 In / 8 Out DCDB
10 In / 10 Out DCDB
Custom configurations are also available as per project requirements.
Applications
AAVAD Solar DCDB panels are widely used in:
Utility-scale solar power plants
Rooftop solar installations
Commercial and industrial solar projects
Renewable energy systems
Solar-integrated LT power distribution systems
Additionally, AAVAD serves industries such as manufacturing, mining, food & beverage, marine, construction, and utilities, delivering reliable and cost-effective electrical panel solutions.
