{"product_id":"turck-bl20-2do-r-nc-digital-relay-output-module","title":"Turck BL20-2DO-R-NC Digital Relay Output Module","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"531\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/turck\"\u003eTURCK \u003c\/a\u003eBL20-2DO-R-NC digital \u003ca href=\"https:\/\/plgautomation.com\/collections\/plcs-more\"\u003erelay output module\u003c\/a\u003e is used in BL20 distributed I\/O and PLC automation systems. Commonly installed in packaging machinery, conveyor systems, assembly equipment, material handling systems, and manufacturing lines requiring relay-based switching of field devices and control circuits. Maintenance teams, OEMs, and system integrators use this part for control system expansion, relay output replacement, machine retrofits, and automation upgrades. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"533\" data-end=\"550\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"551\" data-end=\"1179\"\u003eThe TURCK BL20-2DO-R-NC provides two normally closed relay output channels for controlling contactors, solenoid valves, alarm devices, motors, and auxiliary control circuits within the BL20 modular I\/O platform. It is commonly used in packaging machines, automated assembly systems, process automation equipment, conveyor controls, and machine tools where fail-safe relay outputs are required for switching AC or DC loads. The modular BL20 architecture allows the relay module to integrate with multiple industrial fieldbus systems while simplifying maintenance and future system expansion. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1181\" data-end=\"1210\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1211\" data-end=\"2465\"\u003e• Brand: TURCK\u003cbr data-start=\"1225\" data-end=\"1228\"\u003e• Part Number: BL20-2DO-R-NC\u003cbr data-start=\"1256\" data-end=\"1259\"\u003e• Product Type: Digital Relay Output Module\u003cbr data-start=\"1302\" data-end=\"1305\"\u003e• Series: BL20 I\/O System\u003cbr data-start=\"1330\" data-end=\"1333\"\u003e• Function: Relay output switching module\u003cbr data-start=\"1374\" data-end=\"1377\"\u003e• Number Of Channels: 2 relay outputs\u003cbr data-start=\"1414\" data-end=\"1417\"\u003e• Output Type: Normally Closed (NC) relay contacts\u003cbr data-start=\"1467\" data-end=\"1470\"\u003e• Signal Type: Digital output\u003cbr data-start=\"1499\" data-end=\"1502\" data-is-only-node=\"\"\u003e• Contact Type: Potential-free relay contacts\u003cbr data-start=\"1547\" data-end=\"1550\"\u003e• Switching Voltage: Up to 250 VAC \/ 30 VDC\u003cbr data-start=\"1593\" data-end=\"1596\"\u003e• Switching Current: Up to 2 A per channel\u003cbr data-start=\"1638\" data-end=\"1641\"\u003e• Supply Voltage: 24 VDC via BL20 backplane bus\u003cbr data-start=\"1688\" data-end=\"1691\"\u003e• Electrical Isolation: Galvanically isolated relay outputs\u003cbr data-start=\"1750\" data-end=\"1753\"\u003e• Connection Technology: Screw terminal or cage clamp terminal base modules\u003cbr data-start=\"1828\" data-end=\"1831\"\u003e• Mounting Type: Plug-in module for BL20 base system\u003cbr data-start=\"1883\" data-end=\"1886\"\u003e• Protection Rating: IP20\u003cbr data-start=\"1911\" data-end=\"1914\"\u003e• Operating Temperature: 0°C to +55°C\u003cbr data-start=\"1951\" data-end=\"1954\"\u003e• Storage Temperature: -25°C to +85°C\u003cbr data-start=\"1991\" data-end=\"1994\"\u003e• Dimensions: 12.6 x 74.1 x 55.4 mm\u003cbr data-start=\"2029\" data-end=\"2032\"\u003e• Diagnostic Features: Channel status and diagnostic LEDs\u003cbr data-start=\"2089\" data-end=\"2092\"\u003e• Approvals: CE, cULus, Class I Division 2, Zone 2\u003cbr data-start=\"2142\" data-end=\"2145\"\u003e• Application: Relay switching of motors, contactors, valves, alarms, and industrial control devices\u003cbr data-start=\"2245\" data-end=\"2248\"\u003e• Special Features: Fieldbus-independent operation, modular architecture, hot-swappable design, integrated diagnostics, isolated relay outputs, fail-safe normally closed contacts. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2467\" data-end=\"2491\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2492\" data-end=\"2563\"\u003e• TURCK BL20-2DO-R-NO\u003cbr data-start=\"2513\" data-end=\"2516\"\u003e• TURCK BL20-2DO-R-CO\u003cbr data-start=\"2537\" data-end=\"2540\"\u003e• TURCK BL67-2DO-R-NC\u003c\/p\u003e","brand":"TURCK","offers":[{"title":"Used Surplus - Excellent Condition","offer_id":51714317222190,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_b5dc4c7e-3a6c-4af0-af2e-86c899c7d273.jpg?v=1770422490","url":"https:\/\/plgautomation.com\/products\/turck-bl20-2do-r-nc-digital-relay-output-module","provider":"PLG Automation ","version":"1.0","type":"link"}