{"product_id":"beckhoff-automation-el1904-digital-input-module","title":"Beckhoff Automation EL1904 Digital Input Module","description":"\u003cdiv\u003e\u003cp\u003eThe Beckhoff EL1904 EtherCAT Terminal is a four-channel digital input module rated for 24 V DC, built as a TwinSAFE safety input terminal for safety-related automation tasks. It accepts sensors with potential-free (floating) contacts and feeds their states into the EtherCAT cycle for deterministic control, making it well-suited for emergency-stop, interlock, and guard-signal monitoring in automated machinery. This 4-channel input block is a compact Beckhoff module with an IP20 enclosure, weighs about 50 g, and operates from -25 to +55 degrees Celsius, designed to withstand typical factory environments. When powered from the Beckhoff E-bus, it draws roughly 200 mA and delivers a characteristic input response time around 4 ms, enabling prompt reactions in safety-critical applications.\u003c\/p\u003e\u003c\/div\u003e","brand":"Beckhoff","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":46266723270890,"sku":null,"price":406.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0716\/8039\/3450\/files\/GTG-STOCK-073.png?v=1788727428","url":"https:\/\/gtghardware.com\/products\/beckhoff-automation-el1904-digital-input-module","provider":"GTG Hardware","version":"1.0","type":"link"}