Uxcell a11090800ux0013 Red Sign Mushroom Emergency Stop Push Button Switch Station 1 NC Normally Closed Product Name : Mushroom Push Button Switch ; Action Type : Self-locking Type ; Contact Type : Normally Close(NC) Rated Current : 10(6)A ; Rated Voltage : AC 400V Push Button Diameter : 4cm/1.6" ; Overall Size : 6.7 x 6.7 x 8.1cm/2.64" x 2.64" x 3.2"(L*W*H)