SIMATIC S7-300, Digital input SM 321, isolated, 8 DI, 120 V/230 V AC, 1x 40-pole, with single rooting/channel6ES7321-1FF10-0AA0 : SM321, 8 DI, AC/DC 120/230V, 1ch/commonSKU: 6ES73211FF100AA0Add to WishlistProduct ConditionBrand NewReturn & Refund Policyas per PA terms & conditionsShipping Infocost extra at the time of delivery