Siemens 6SE6420-2UD21-1AA1The Siemens part number 6SE6420 2UD21 1AA1 is an integral digital input module from the esteemed SIMATIC S7 200 series, specifically designed for robust industrial automation. This versatile module features 16 digital inputs, each capable of handling up to 24 mA and 30 VDC, making it compatible with both normally open and normally closed input configurations. Operating effectively within a temperature range of 20C to 60C and powered by a 24 VDC
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