{"product_id":"allen-bradley-440f-c251d","title":"440F-C251D","description":"\u003ch2\u003eOverview of Allen Bradley 440F-C251D\u003c\/h2\u003e\nThe Allen Bradley 440F-C251D is a Safedge Guardmaster safety edge controller designed for industrial safety applications. Manufactured by Rockwell Automation, this device provides reliable monitoring and control for safety edge systems. It features a compact 45mm housing suitable for DIN rail mounting, making it easy to integrate into existing control panels. The controller supports both manual and automatic reset modes and operates on 24V AC\/DC or 110\/230V AC supply voltages. Its primary function is to monitor safety edge inputs and provide safe outputs to stop hazardous machinery, ensuring compliance with critical safety standards such as EN ISO 13849-1 PLd Cat.3. The 440F-C251D is robustly certified for safety and is widely used in automated systems requiring dependable protection mechanisms.\n\n\u003ch2\u003eKey Features of Allen Bradley 440F-C251D\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDual independent volt-free safety relay outputs (2 N.O.) for safety circuit control.\u003c\/li\u003e\n\u003cli\u003eOne volt-free normally closed auxiliary output for monitoring or signaling.\u003c\/li\u003e\n\u003cli\u003eSupports 24V AC\/DC or 110\/230V AC operation for versatile power sourcing.\u003c\/li\u003e\n\u003cli\u003eCompact 45mm-wide housing optimized for DIN rail mounting in control enclosures.\u003c\/li\u003e\n\u003cli\u003eConfigurable for manual or automatic reset modes depending on application needs.\u003c\/li\u003e\n\u003cli\u003eComplies with EN ISO 13849-1 Safety Integrity Level PLd (Category 3) and EN ISO 13856-2 standards.\u003c\/li\u003e\n\u003cli\u003eIP40 enclosure rating with IP20 terminal protection for reliable industrial use.\u003c\/li\u003e\n\u003cli\u003eOvervoltage category 2 rating and 2500V impulse withstand voltage for durability.\u003c\/li\u003e\n\u003cli\u003eLow power consumption under 6 VA for efficient operation.\u003c\/li\u003e\n\u003cli\u003eEasy integration with Guardmaster Safedge pressure-sensitive safety edge systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 440F-C251D\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n  \u003ctr\u003e\n    \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003cth\u003eDetails\u003c\/th\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eSafety Certification\u003c\/td\u003e\n    \u003ctd\u003eEN ISO 13849-1 PLd, Cat. 3; EN ISO 13856-2\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003ePower Supply\u003c\/td\u003e\n    \u003ctd\u003e24V AC\/DC or 110\/230V AC\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eRelay Outputs\u003c\/td\u003e\n    \u003ctd\u003e2 x N.O. safety contacts, 1 x N.C. auxiliary contact\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eMounting\u003c\/td\u003e\n    \u003ctd\u003e45mm DIN Rail\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eEnclosure Rating\u003c\/td\u003e\n    \u003ctd\u003eIP40 (Housing), IP20 (Terminals)\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003eResponse Time\u003c\/td\u003e\n    \u003ctd\u003eApproximately 13 ms\u003c\/td\u003e\n  \u003c\/tr\u003e\n  \u003ctr\u003e\n    \u003ctd\u003ePower Consumption\u003c\/td\u003e\n    \u003ctd\u003e\u0026lt;6 VA\u003c\/td\u003e\n  \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\nThe Allen Bradley 440F-C251D is engineered for use in safety edge systems on automated machinery such as conveyors, presses, and robotic cells. It serves as a critical component in safeguarding personnel by detecting physical contact on pressure-sensitive edges and triggering safe shutdowns. This model is ideal for packaging lines, material handling equipment, and industrial doors where fast and reliable safety response is necessary. Its flexibility in mounting and reset mode options enables tailored implementations across various industries including automotive, manufacturing, and food processing. The controller’s compliance with international safety standards makes it a trusted choice for engineers prioritizing safety assurance and regulatory compliance.\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eView All Allen Bradley Products\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/how-to-choose-the-right-soft-starter-for-your-motor-application\/\" target=\"_blank\"\u003eHow to Choose the Right Soft Starter for Your Motor Application\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-194e-sy\" target=\"_blank\"\u003eAllen Bradley 194E-SY Disconnect Switch\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-1783-ims28rac\" target=\"_blank\"\u003eAllen Bradley 1783-IMS28RAC Managed Switch\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47814731923755,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_545b24d6-7575-4438-9b07-b0b2355df666.png?v=1723539946","url":"https:\/\/leadtime.ca\/products\/allen-bradley-440f-c251d","provider":"LEADTIME","version":"1.0","type":"link"}