Table G3.1

UL 891Switchboard and the Table G3.1

Last edit: 03/03/2023

It is one of the most important tables to comply with. It details the minimum distance between bus bars, depending upon the Switchboard declared Shortcircuit current, the Ampere and Voltage Rating.
The bus bars can be arranged in a edge to edge (EE) or face to face (FF) layout. That is important because it changes the minimum distance between them.

GT Engineering - P.iva 03176130981

via Gutenberg 14 - 25020 PONCARALE (BS)

Tel. 030 3581045 -