QMM90N. G&W Electric Low Voltage Switchgear for CCM

Arc-proof motor control center.
Electrical panels designed under the “fault-free zone” concept, where failures are virtually impossible under any conditions.
With internal “form 4b” partitions and internal protection up to IP4X.
QMM90N is fully developed and tested according to IEC 61439-1.
Same design for chart control center as for motor control center.
Allows the use of components from different manufacturers.
No live parts exposed during reach truck maneuvers.
Design voltage: 690V
Design current: 6000A
Short-time withstand current: 100 kA 1 sec.
Internal arc withstand current: 100 kA 0.5 sec. Internal arc.
IEC 61439-1 (2009) – Low voltage switchgear and control gear assemblies
IEC 61641 (2008) – Internal arc assemblies
IEC 947 – Electrical components