Complete Set of Electrical Distribution Box Models

Building electrical distribution boxes include a wide range of models such as Main Distribution Boards, Sub Distribution Boards, Meter Panels, Consumer Units, and specialized enclosures for residential, commercial, and industrial applications.

Core Types of Distribution Boxes

Main Distribution Board (MDB) – Central hub for distributing electricity to various sections of a building, equipped with bus bars, MCCBs, and support equipment for overload protection and power management. Sub Distribution Board (SDB) – Transfers electricity from the main board to specific areas like garages, parking lots, or individual floors, providing localized control. Meter Panel – Houses electrical meters to monitor power consumption, often including primary switches, fuses, and RCDs.

Panel Fuse Bank – Contains multiple fuses for circuit protection, commonly used in industrial or commercial setups. Unitized Panel – Compact panels integrating multiple protective devices and switches for efficient space utilization. Transfer Switches –Manual Transfer Switch: Operates manually to switch loads between main and backup power.

Automatic Transfer Switch: Automatically manages power transfer using timers or sensors. Consumer Unit – Residential distribution box with circuit breakers or fuses, RCDs, and switches to protect circuits from overloads. Enclosed Switchgear – Provides power control and protection for medium-voltage systems (1 kV to 75 kV), including switches, breakers, and circuits.

Additional Types and Configurations

Surface Mounted D

B Boxes – Installed on walls, suitable for retrofits and industrial environments.

Flush Mounted D

B Boxes – Embedded into walls for aesthetic and space-saving purposes.

Pole Mounted D

B Boxes – Outdoor applications such as street lighting and utility distribution.

Single Phase D

B Boxes – Designed for residential or small commercial loads.

Three Phase D

B Boxes – Industrial or large commercial facilities requiring higher power capacity. Lighting Distribution Boxes – Dedicated to lighting circuits with protective devices. Power Distribution Boxes – Support sockets, equipment, and heavy machinery.

Control Distribution Boxes – Integrate control components like relays, contactors, and timers for automation systems.

Weatherproof and Explosion-

Proof Boxes – Specialized enclosures for harsh or hazardous environments. Plastic and Metal Enclosures – Materials include galvanized steel, stainless steel, aluminum, and high-grade plastics for durability and corrosion resistance.

Smart D

B Boxes – Include energy monitoring units, communication modules, and remote control capabilities.

Key Components Across Models

Circuit Breakers and Fuses – Protect circuits from overloads and short circuits. Residual Current Devices (RCCB/RCD) – Detect imbalances and prevent electric shocks. Bus Bars and Neutral Links – Conduct electricity and provide return paths.

Grounding Bus Bar – Ensures safety by directing excess current to the ground. Enclosures – Protect internal components from dust, moisture, and mechanical damage. Surge Protective Devices – Guard against voltage spikes and lightning strikes.

This comprehensive list covers the major models, configurations, and specialized types of building electrical distribution boxes, suitable for residential, commercial, and industrial applications, ensuring safe and efficient power distribution.