{"product_id":"allen-bradley-440r-s12r2-guardmaster-single-input-safety-relay","title":"Allen-Bradley 440R-S12R2 Guardmaster Single Input Safety Relay","description":"\u003ch3 data-start=\"0\" data-end=\"16\"\u003eDescription:\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"767\"\u003eThe \u003ca href=\"https:\/\/plgautomation.com\/collections\/allen-bradley\" title=\"Allen-Bradley\"\u003eAllen-Bradley\u003c\/a\u003e 440R-S12R2 Guardmaster Single Input Safety Relay is used in \u003ca href=\"https:\/\/plgautomation.com\/collections\/safety-components\" title=\"machine safety control\"\u003emachine safety control\u003c\/a\u003e systems to monitor emergency stop devices, safety gates, and other safety input circuits. It provides reliable safety monitoring with internal fault detection and safety-rated output contacts designed to help ensure safe machine shutdown during hazardous conditions. Commonly installed in manufacturing equipment, robotic work cells, packaging machines, and automated production lines, this relay supports compliance with industrial safety standards. Maintenance teams and system integrators use this safety relay for machine safety system repairs, safety circuit upgrades, equipment retrofits, and replacement of existing Guardmaster safety relays.\u003c\/p\u003e\n\u003ch3 data-start=\"769\" data-end=\"786\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"787\" data-end=\"1191\"\u003eThe Allen-Bradley 440R-S12R2 Guardmaster safety relay is used in industrial safety systems where monitoring of safety devices is required to protect personnel and equipment. It is commonly applied in emergency stop circuits, safety gate monitoring, light curtain safety systems, and machine safety interlocks in manufacturing lines, packaging machinery, robotic cells, and automated industrial equipment.\u003c\/p\u003e\n\u003ch3 data-start=\"1193\" data-end=\"1222\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1223\" data-end=\"1694\"\u003e• Manufacturer Part Number (MPN): 440R-S12R2\u003cbr data-start=\"1267\" data-end=\"1270\"\u003e• Product Type: Safety Relay\u003cbr data-start=\"1298\" data-end=\"1301\"\u003e• Series: Guardmaster\u003cbr data-start=\"1322\" data-end=\"1325\"\u003e• Safety Inputs: Single Input Channel\u003cbr data-start=\"1362\" data-end=\"1365\"\u003e• Safety Outputs: 2 Normally Open (NO) Safety Contacts\u003cbr data-start=\"1419\" data-end=\"1422\"\u003e• Auxiliary Outputs: 1 Normally Closed (NC) Auxiliary Contact\u003cbr data-start=\"1483\" data-end=\"1486\"\u003e• Supply Voltage: 24V DC\u003cbr data-start=\"1510\" data-end=\"1513\"\u003e• Safety Category: Category 4 \/ SIL 3 \/ PLe capable\u003cbr data-start=\"1564\" data-end=\"1567\"\u003e• Reset Type: Automatic or Manual Reset\u003cbr data-start=\"1606\" data-end=\"1609\"\u003e• Mounting Type: DIN Rail Mount\u003cbr data-start=\"1640\" data-end=\"1643\"\u003e• Operating Temperature: -5 to 55 °C (23 to 131 °F)\u003c\/p\u003e\n\u003ch3 data-start=\"1696\" data-end=\"1720\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"1721\" data-end=\"1805\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e• Allen-Bradley \u003ca href=\"https:\/\/plgautomation.com\/products\/allen-bradley-440r-s13r2-ser-a?_pos=1\u0026amp;_sid=c0ecf32cb\u0026amp;_ss=r\" title=\"440R-S13R2\"\u003e440R-S13R2\u003c\/a\u003e\u003cbr data-start=\"1747\" data-end=\"1750\"\u003e• Allen-Bradley \u003ca href=\"https:\/\/plgautomation.com\/products\/allen-bradley-440r-d22r2-safety-relay-gsr-di-ser-a?_pos=2\u0026amp;_sid=eb9d5a225\u0026amp;_ss=r\" title=\"440R-D22R2\"\u003e440R-D22R2\u003c\/a\u003e\u003cbr data-start=\"1776\" data-end=\"1779\"\u003e• Allen-Bradley 440R-S12R1\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Surplus Original Box","offer_id":50558259724590,"sku":"Surplus Original Box","price":441.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/440R-S12R2.webp?v=1752564581","url":"https:\/\/plgautomation.com\/products\/allen-bradley-440r-s12r2-guardmaster-single-input-safety-relay","provider":"PLG Automation ","version":"1.0","type":"link"}