About ACDB DCDB
ACDB DCDB Box is also as Alternative Current Distribution Box (ACDB) and Direct Current Distribution (DCDB). ACDB and DCDB both are an important component of Solar System. ACDB and DCDB are basically safety circuit boxes which prevent our appliances.
Solar ACDB & DCDB Boxes
ACDB is installed after the Solar Inverter but before connected load. While DCDB is installed between Solar Panel and Solar Inverter.
AC Distribution Box
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 is an important part of SPV system. It gives extra protection to the system in case of failures on load side. ACDB is made up of breaker, isolators, voltage and current monitoring etc.
Solar ACDB Distribution Junction Box Diagram
Specification of ACDB Box
ACDB (alternative current distribution box) comes with many specifications. The specifications of ACDB may change as per load or inverter capacity. Its detailed specifications is mentioned below.
| Ambient | -10 to 60 Degree C |
| Type of Enclosure | IP65 Polycarbonate Material |
| Inputs/Outputs | Single Phase ACDB, 3 Phase DCDB |
| AC Switching | MCCB/MCB Based AC Disconnection |
| Surge Protection | AC SPD Type 2 |
| Box / Top Cover | Opaque/Transparent |
Custom design is also possible as per customer requirement.
DC Distribution Box
DCDB box is a component of an electricity supply system which divides an electrical power feed into subsidiary circuits, which providing a protective fuse or circuit breaker for each circuit. DCDB controls the DC power from solar panel and with having necessary surge protection device (SPD) and fuses. DCDB protect the solar panel, solar inverter and solar battery from any type of damage in solar system. All switches at the circuit breakers, connectors confirm to IEC 60947, part I, II and III.
Array Junction Box DCDB Diagram
Specification of DCDB Box
DCDB also known as Array Junction Box (AJB). It has many features in it. You can check its detailed specifications below.
| Ambient | -10 to 60 Degree C |
| Type of Enclosure | IP65 Polycarbonate Material |
| Inputs/Outputs | 1 in 1Out, 2 in 2Out, 3 in 3Out, 4 in 4Out |
| DC Switching | 600/1000/1500VDC Disconnection |
| Surge Protection | DC SPD Type 2, Fuse with or without Indications |
| Box / Top Cover | Opaque/Transparent |
Specifications of DCDB may change as per solar panel or number of strings or as per site conditions.