Types of Electrical Panel Boards: A Comprehensive Guide to Choosing the Right System

Types of Electrical Panel Boards

Electrical panel boards, also known as distribution boards or breaker panels, are key components of electrical systems that house circuit breakers or fuses to control and distribute electrical power to various circuits within a building or structure. Here are some common types of electrical panel boards:

1. Main Distribution Board (MDB)

The Main Distribution Board (MDB) is the primary panel board that receives electrical power from the utility source or generator and distributes it to various subpanels or branch circuits within a building. It typically contains a main circuit breaker or switch that controls the entire electrical supply for the building.

2. Sub-Distribution Board (SDB)

A Sub-Distribution Board (SDB) is a secondary panel board connected to the MDB. It distributes electrical power to specific areas or sections of a building, such as floors, departments, or individual rooms. SDBs are equipped with circuit breakers or fuses to protect the corresponding electrical circuits.

3. Final Distribution Board (FDB)

The Final Distribution Board (FDB) is located near the end of the electrical distribution system and provides power to individual loads or equipment. FDBs are commonly used for circuits serving specific appliances, machinery, or specialized equipment.

4. Motor Control Center (MCC)

A Motor Control Center (MCC) is a specialized panel board that houses motor starters, motor protection devices, and control equipment for operating and controlling electric motors. MCCs are commonly used in industrial settings where multiple motors need to be managed.

5. Lighting Distribution Board (LDB)

A Lighting Distribution Board (LDB) is designed specifically for controlling and distributing power to lighting circuits. It typically includes circuit breakers or fuses for individual lighting circuits and may have additional features such as dimmer switches or time controls for lighting management.

6. Feeder Pillar

A Feeder Pillar is an outdoor panel board that serves as a junction point for electrical power distribution. It receives power from the utility source and feeds it into the building or various sections of an outdoor area. Feeder pillars often house protection devices, metering equipment, and other accessories for outdoor electrical installations.

7. Control Panel

A Control Panel is a specialized panel board used for controlling and monitoring specific processes or systems. It contains switches, indicators, relays, and other components necessary for operating and controlling the associated equipment or machinery.

These are some of the common types of electrical panel boards used in various applications. The selection of the appropriate panel board type depends on factors such as the size of the electrical system, the specific needs of the building or facility, and the type of loads being served. It is crucial to consult with a qualified electrician or electrical engineer to ensure proper design, installation, and maintenance of electrical panel boards.