Click to expand Tap to zoom NEW SIEMENS 6ES5 421-8MA12 DIGITAL INPUT MODULE 6ES54218MA12 by EcoTech Solutions Inc. Sale $489.25 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart NEW SIEMENS 6ES5 421-8MA12 DIGITAL INPUT MODULE 6ES54218MA12