DCDB is also known as Array Junction Box (AJB). It is a small solar device that is installed between solar panel and a solar inverter.

If any disturbance occurs from the side of the solar panel, the DC fuse inside the DCDB will be melted and protect the equipment of the solar system and prevent them from being damaged.

The ACDB (Alternative Current Distribution Box) receives the AC power from the solar inverter and directs it to AC loads through the distribution board.

ACDB includes necessary surge protection device (SPD) and MCCB to protect the solar inverter from any type of damage or heavy voltage.

In Other words, Solar ACDB is AC Distribution board and Solar DCDB is DC Distribution Boards. Solar ACDB DCDB is LT panels that distribute power from Invertor to Load.

Solar AC Distribution Board is the panel used between solar Inverter and Load to provide overload and short circuit protection.