An MCset switchgear arc tunnel is fitted on the top of the cubicle over the top arc ventilation flaps. It is used when the substation ceiling height is less than 4 meters or short circuit current is more than 25kA. The tunnel is used to release hot arc gasses out of the substation into a safe area.

For more information please see MCset Civil engineering guide on Schneider web page.

Released for: Schneider Electric Ireland