{"product_id":"siemens-6es7421-1fh20-0aa0-s7-400-sm-421-16-di-uc","title":"Siemens 6ES7421-1FH20-0AA0 S7-400 SM 421 16 DI UC","description":"\u003ch2 style=\"color:#1a1a1a;\"\u003eSiemens 6ES7421-1FH20-0AA0 SIMATIC S7-400 SM 421 Digital Input Module\u003c\/h2\u003e\n\n\u003cp style=\"margin-bottom:20px;\"\u003e\u003cstrong style=\"color:#0066b3;\"\u003eSiemens 6ES7421-1FH20-0AA0\u003c\/strong\u003e is a SIMATIC S7-400 SM 421 digital input module with 16 isolated UC 120\/230V inputs. Features IEC 61131-2 Type 2 characteristic, potential separation between channels in groups of 4, and 1500 VAC isolation. Weight approximately 650 g.\u003c\/p\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eKey Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin-bottom:20px; font-size:14px;\"\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eArticle No.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e6ES7421-1FH20-0AA0\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eDigital Input Module SM 421\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e16\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Voltage Type\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eAC\/DC (UC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eRated Value\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e120\/230V UC (47-63 Hz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Characteristic\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eIEC 61131 Type 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eBackplane Current (5V)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e80 mA max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003ePower Loss\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e12W typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eApproximately 650 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eInput Specifications\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin-bottom:20px; font-size:14px;\"\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eSignal \"0\" Voltage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e0-40V AC \/ -40 to +40V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eSignal \"1\" Voltage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e74-264V AC \/ 80-264V DC \/ -80 to -264V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Current \"1\" (120V)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e10 mA AC \/ 1.8 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Current \"1\" (230V)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e14 mA AC \/ 2 mA DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Delay 0 to 1\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e20 ms AC \/ 15 ms DC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eInput Delay 1 to 0\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e30 ms AC \/ 25 ms DC max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eIsolation \u0026amp; Cable Length\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin-bottom:20px; font-size:14px;\"\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eChannel Separation\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eYes, in groups of 4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eChannels to Backplane\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eIsolation Test Voltage\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1500 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCable Length (Shielded)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e1000 m max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eCable Length (Unshielded)\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e600 m max\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eDimensions\u003c\/h3\u003e\n\u003ctable style=\"width:100%; border-collapse:collapse; margin-bottom:20px; font-size:14px;\"\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eParameter\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ddd; padding:8px; text-align:left;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eWidth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e25 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f0f0f0;\"\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eHeight\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e290 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003eDepth\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ddd; padding:8px;\"\u003e210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eFeatures\u003c\/h3\u003e\n\u003cul style=\"margin-bottom:20px;\"\u003e\n\u003cli\u003e16 simultaneously controllable inputs\u003c\/li\u003e\n\u003cli\u003e2-wire sensor connectable with max 5 mA quiescent current\u003c\/li\u003e\n\u003cli\u003eStatus indicator LED per digital input (green)\u003c\/li\u003e\n\u003cli\u003eNo diagnostics function\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color:#0066b3; margin-top:20px;\"\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What input voltage does the 6ES7421-1FH20-0AA0 support?\u003c\/strong\u003e\u003cbr\u003eA1: UC 120\/230V AC\/DC at 47-63 Hz.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How are the channels isolated?\u003c\/strong\u003e\u003cbr\u003eA2: Potential separation between channels in groups of 4, tested at 1500 VAC.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: What is the maximum cable length?\u003c\/strong\u003e\u003cbr\u003eA3: 1000 m shielded, 600 m unshielded.\u003c\/p\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":67854153351300,"sku":"6ES7421-1FH20-0AA0","price":148.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/6ES7421-1FH20-0AA0.jpg?v=1793534089","url":"https:\/\/www.etowonauto.com\/de\/products\/siemens-6es7421-1fh20-0aa0-s7-400-sm-421-16-di-uc","provider":"Etowon Auto","version":"1.0","type":"link"}