Comus mcs 141 aluminium wedge metal switch and magnet set with cable comus mcs 141 1 a low cost loop type normally open magnetic contact switch with a heavy duty extruded aluminium case and 22 armoured cable making it suitable for use in harsh environments supplied with a wedge shape magnet that makes the switch ideal for use as a heavy duty door contact in both industrial and commercial applications comus mcs 141 1 aluminium short metal switch amp wedge magnet set with cable