{"product_id":"allen-bradley-440t-mrkse100h","title":"440T-MRKSE100H","description":"\u003ch2\u003eOverview of Allen Bradley 440T-MRKSE100H\u003c\/h2\u003e\nThe Allen Bradley 440T-MRKSE100H is a trapped key interlock switch engineered to provide reliable electrical isolation and enhance safety protocols within industrial environments. This rotary-type interlock allows mechanical safeguarding of hazardous machinery by ensuring energy sources are fully isolated before any access is permitted. Designed for enclosure mounting, it features a single-key rotary mechanism that enforces sequential interlocking—making it impossible to access protected zones unless the correct conditions are met. This model helps prevent improper access during machine maintenance or changeover, reducing risk for operators and simplifying compliance with stringent safety standards. Manufactured with robust materials and precision engineering, the 440T-MRKSE100H is suitable for use in high-demand automation settings where safety and uptime are critical.\n\n\u003ch2\u003eKey Features of Allen Bradley 440T-MRKSE100H\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSingle key rotary trapped key interlock for enclosure mounting\u003c\/li\u003e\n  \u003cli\u003eEnsures electrical isolation and safe access for machinery\u003c\/li\u003e\n  \u003cli\u003e4 Normally Open (NO) or 2 NO and 2 Normally Closed (NC) contact configurations available\u003c\/li\u003e\n  \u003cli\u003e20 Amp current rating for robust switching performance\u003c\/li\u003e\n  \u003cli\u003eCompliant with EN ISO 14119 and can be used in safety applications up to Category 3, PLd\u003c\/li\u003e\n  \u003cli\u003eStainless steel key and dust cap for durability in industrial environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 440T-MRKSE100H\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eType: Single Key Rotary Switch – Enclosure Mounted\u003c\/li\u003e\n  \u003cli\u003eContacts: 4 NO or 2 NO + 2 NC versions available\u003c\/li\u003e\n  \u003cli\u003eCurrent Rating: 20 A\u003c\/li\u003e\n  \u003cli\u003eMaterial: Stainless steel key, industrial-grade housing\u003c\/li\u003e\n  \u003cli\u003eStandards: CE Marked, TÜV Certified, EN ISO 14119, EN ISO 13489-1 Cat 3, PLd\u003c\/li\u003e\n  \u003cli\u003eProof Test Interval (T1): 20 years\u003c\/li\u003e\n  \u003cli\u003eSafety Integrity Level: Up to PLd\u003c\/li\u003e\n  \u003cli\u003eCountry of Origin: Multiple\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\nThe Allen Bradley 440T-MRKSE100H is widely used where secure and sequenced machine access is essential. Typical applications include machinery that requires energy isolation before gate or guard access—such as packaging lines, automotive manufacturing cells, and robotic workstations. This interlock switch supports safe maintenance and operational procedures by preventing unexpected energization and restricting entry until all safety steps are confirmed. It is ideal for environments where upholding international safety standards is necessary and where downtime due to accidents must be minimized. The robust design and versatility ensure the 440T-MRKSE100H delivers dependable performance in both automated and manual isolation scenarios, making it suitable for OEMs, panel builders, and end users focused on operator security.\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\/examples-of-industrial-automation-control-systems\" target=\"_blank\"\u003eExamples of Industrial Automation and Control Systems\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 for Machine Safety\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 for Secure Networks\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870783783211,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_57d405b6-88d3-49d8-9e2d-cab06bec239b.png?v=1723532143","url":"https:\/\/leadtime.ca\/products\/allen-bradley-440t-mrkse100h","provider":"LEADTIME","version":"1.0","type":"link"}