Form 4 IMCC
ESTA Offers Form4-2B MCCs and IMCCs up to 3000 Amps
Form4-2B is a combination board built with all functional units over 30kW facilitated in the form4 section and the smaller functional units grouped into Form2B sections according to their functional groups. This provides a safe and economical solution.
FORM4
Form 4 covers overall assemblies that are so enclosed as to provide protection against contact with internal live parts and components, and in which there is internal separation of the busbar system from functional units, and separation of all functional units from each other. Incoming and outgoing terminals are also required to be separated from the busbar and from each other.
The following general conditions apply:
- Busbar are separated from functional units.
- Functional units are separated from each other
- Terminations to functional units are separated from each other
FORM 2B
Form 2B defines overall assemblies which are enclosed to provide protection against contact with internal live parts or components, and in which there is internal separation of the busbars from functional units. Incoming and outgoing terminals are also required to be separated from the busbar but not from each other.
The following general conditions apply:
- Busbar are separated from functional units.
- Functional units are not separated from each other or the terminals.