Switchboard construction

MNS iS as part of the ABB low voltage switchgear

solution uses the well proven ABB MNS standard

design aspects. MNS aspects described in this

section are fully applicable to MNS iS.

MNS system is a verified low voltage switchgear

design in accordance with IEC 61439 series and IEC 61641.

The consistent application of the modular

principle both in electrical and mechanical design

as well as the use of standardized components

allows its flexible and compact design.

Depending on operating and environmental

conditions different design levels are offered.

Notable system advantages with regard to

design aspects:

• Optimum personal protection

• Design verified by testing

• Arc fault containment acc. criteria 1-7

• High operational reliability and availability

• Earthquake-, vibration- and shock-proof

designs are available

• Maintenance-free busbar construction

• Simple retrofitting procedures

• Compact, space-saving design

• Easy project and detail engineering through

standardised components

The switchboard is divided into vertical and

horizontal compartments thus separating

different functional areas.