{"product_id":"siemens-6es7221-1bh32-0xb0-digital-input-sm-1221-16-di-24-v-dc","title":"Siemens 6ES7221-1BH32-0XB0 - Digital Input SM 1221 16 DI, 24 V DC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e6ES7221-1BH32-0XB0\u003c\/strong\u003e is a SIMATIC S7‑1200 digital input module SM 1221 with 16 digital inputs (24V DC, sink\/source), grouped in 4 channels per group, and type 1 input characteristic per IEC 61131.\u003c\/p\u003e\n\n\u003ch3\u003eSupply Voltage\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Value:\u003c\/strong\u003e 24V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePermissible Range:\u003c\/strong\u003e 20.4V to 28.8V DC\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInput Current\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003efrom Backplane Bus (5V DC, max):\u003c\/strong\u003e 130 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003efrom Load Voltage L+ (without load, max per channel):\u003c\/strong\u003e 4 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePower Loss\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Loss (typ):\u003c\/strong\u003e 2.5 W\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDigital Inputs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber:\u003c\/strong\u003e 16 (in groups of 4)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInput Characteristic:\u003c\/strong\u003e Type 1 per IEC 61131\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimultaneously Controllable Inputs (max):\u003c\/strong\u003e 16 (all mounting positions)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInput Voltage\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRated Value:\u003c\/strong\u003e 24V DC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal \"0\":\u003c\/strong\u003e 5V DC at 1 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal \"1\":\u003c\/strong\u003e 15V DC at 2.5 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInput Current\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal \"0\" (max quiescent current):\u003c\/strong\u003e 1 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal \"1\" (min):\u003c\/strong\u003e 2.5 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSignal \"1\" (typ):\u003c\/strong\u003e 4 mA\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAmbient Conditions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e –20°C to +60°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePermissible Temperature Change:\u003c\/strong\u003e 5°C to 55°C, 3°C\/min\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStorage\/Transport Temperature:\u003c\/strong\u003e –40°C to +70°C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelative Humidity (at 25°C, non‑condensing):\u003c\/strong\u003e 95% max\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eConnection Method\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRequired Front Connector:\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePhysical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnclosure Material:\u003c\/strong\u003e Plastic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth:\u003c\/strong\u003e 45 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight:\u003c\/strong\u003e 100 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDepth:\u003c\/strong\u003e 75 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e approx. 210 g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Siemens","offers":[{"title":"Default Title","offer_id":49958134055154,"sku":"6ES7221-1BH32-0XB0","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/5589\/5794\/files\/6ES7221-1BH32-0XB0_2.jpg?v=1787297146","url":"https:\/\/www.petrospare.com\/products\/siemens-6es7221-1bh32-0xb0-digital-input-sm-1221-16-di-24-v-dc","provider":"Petro Spare Industrial Limited","version":"1.0","type":"link"}