RM6 switchgear has been designed to withstand the impact of an internal arc. Stainless steel tanks and cable boxes are fully internal arc rated according to standard IEC 62271-200. If a RM6 cubicle is equipped with a special LRU (internal arc Reduction Unit) “filter”, internal arc classification IAC is AFLR 20kA 1s.
Please contact Schneider Electric for different internal arc options.