Main switch board
The Main Switch Board (MSB) is an essential component of the electrical system, primarily responsible for controlling and protecting the main power supply to an entire building or facility. Typically located near the incoming power source, the MSB includes large circuit breakers that allow for disconnecting the electrical current when necessary.
The structure of the MSB is generally simpler compared to other distribution boards, featuring protective devices such as automatic circuit breakers or disconnect switches, which safeguard the system against issues like overloads or short circuits. This ensures safety for users and electrical equipment while facilitating maintenance and repairs. The MSB serves as a crucial starting point in the power distribution process, contributing to the stability and safety of the entire system.

Specifications
Standard: IEC 61439-1&2, IEC 60529, AS 3439/1
Material: manufactured from 1.5/2mm Electro-Galvanised Steel Sheet.
Finish: Standard RAL-7035.
Rated up to 6300A.
Rated operating voltage up to 690V.
Suitable for both internal & external mounting
Designed for both withdrawable & fixed versions of construction.
Adequate spacing for incoming and outgoing cables.
Top and bottom cable entry.
Panels for front or rear access to suit application.
Degree of protection: IP 5x – IP65.
Free standard Floor mounting system.
Maximum safety & reliability.
Custom design according to client requirements.
Typical options
Main equipments

Main equipments

Miniature circuit breaker
Main equipments
