DiscontinuedLimited Stock
Siemens
EM 221 Digital Input Module 8x120/230V AC
6ES7 221-1EF22-0XA0
Request a Quote
Price Range: $100-500 | Professional quotation within 24 hours
SIMATIC S7-200 EM 221 digital input expansion module with 8 inputs for 120/230V AC signals. Supports AC voltage input types for industrial automation applications. Optical isolation ensures reliable signal processing. Compatible with S7-200 CPU 222, 224, 224XP, and 226. DIN rail mountable. Discontinued since October 2017 - available as spare part only. Ideal for retrofitting legacy S7-200 control systems. High reliability in industrial environments....