{"product_id":"440r-b23020-allen-bradley-safety-relay-msr5t-24v-acdc","title":"440R-B23020 | Allen-Bradley Safety Relay MSR5T 24V AC\/DC","description":"\u003ch4\u003eDescription \u003c\/h4\u003e\n\u003cp data-start=\"284\" data-end=\"574\" class=\"\"\u003eThe Allen-Bradley 440R-B23020 is a Minotaur MSR5T safety monitoring relay designed to support safety functions such as emergency stop and gate monitoring. Operating on 24V AC\/DC power, it offers dual-channel inputs, three safety-rated outputs, and a compact 22.5 mm housing ideal for control panel integration.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications \u003c\/h4\u003e\n\u003ctable width=\"100%\" style=\"height: 405.297px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 24.375px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 24.375px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eCondition\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 24.375px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eNew\/Never Used Surplus\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 30.625px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 30.625px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 30.625px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eAllen-Bradley \u003c\/span\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 28.625px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 28.625px;\"\u003eCategory\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 28.625px;\"\u003e\n\u003cdiv class=\"mt-1 md:mt-0 column-left basis-2\/4 divide-y divide-rad-gray-10 border-b-[0.0625rem] border-rad-gray-10 md:border-0\"\u003e\n\u003cdiv class=\"flex gap-[1.75rem] md:gap-x-0 xl:gap-x-[1.875rem]\"\u003e\n\u003cdiv class=\"text-body-4 w-full font-light py-5 pl-4 md:py-6 md:pl-6 text-rad-gray-70\"\u003e\n\u003cdiv class=\"max-w-[8rem] break-words\"\u003e\u003cspan\u003eSafety Systems\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 28.625px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 28.625px;\"\u003ePart Number\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 28.625px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e440R-B23020\u003cbr\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 32.75px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 32.75px;\"\u003e\u003cspan\u003eSubcategory\u003c\/span\u003e\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 32.75px;\"\u003e\u003cspan data-sheets-root=\"1\"\u003e\u003cspan\u003eSafety Relay\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eSeries\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eMinotaur MSR5T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eInput Voltage\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e24V AC\/DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eInput Type\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e2 NC (Dual Channel)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 24.1719px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 24.1719px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eReset Options\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 24.1719px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eAutomatic or Manual Monitored\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eSafety Outputs\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e3 × NO (Normally Open)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eAuxiliary Output\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e1 × NC (Normally Closed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eContact Rating\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e3 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 37.1875px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 37.1875px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eEnclosure Width\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 37.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e22.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 42.1875px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 42.1875px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eMounting Type\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 42.1875px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003eDIN Rail\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\"\u003eCertifications\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\"\u003eUL, CUL, CE, CCC, KC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003cth style=\"width: 25.8182%; text-align: left; height: 19.5938px;\" class=\"text-left text-body1 text-bold py-10 pr-10 desktop:pr-[10rem] desktop:text-nowrap\"\u003eShipping Weight\u003c\/th\u003e\n\u003ctd style=\"width: 73.8182%; height: 19.5938px;\" class=\"text-left text-body1 py-10 desktop:w-[60%]\"\u003e\u003cspan\u003e0.4650 lb\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eInformation About \u003cspan data-sheets-root=\"1\"\u003e440R-B23020\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cp\u003eThe 440R-B23020 MSR5T safety relay from Allen-Bradley is engineered for machine safety applications requiring monitoring of emergency-stop circuits, safety gates, and other protective devices. It features two normally closed (NC) safety input channels, which can be configured for automatic or manual monitored reset. The relay outputs include three normally open (NO) safety outputs for direct control of contactors or actuators and one normally closed (NC) auxiliary output for status feedback to PLCs or indicator systems. With a slim 22.5 mm wide housing and universal 24V AC\/DC input power, it fits seamlessly into compact safety control environments. The relay meets global safety certifications (UL, CE, CCC, KC, CUL) and conforms to Category 3 safety requirements, making it suitable for mid-level safety performance in industrial automation systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e24V AC\/DC Power Supply: Supports universal low-voltage control panels and flexible power integration.\u003c\/li\u003e\n\u003cli\u003eDual-Channel Safety Inputs: Two normally closed (NC) inputs allow monitoring of safety devices like E-stops or gate switches.\u003c\/li\u003e\n\u003cli\u003eThree NO Safety Outputs: Redundant relay contacts for reliable actuation of safety contactors or actuators.\u003c\/li\u003e\n\u003cli\u003eOne NC Auxiliary Output: For signaling or PLC feedback without compromising safety circuit integrity.\u003c\/li\u003e\n\u003cli\u003eManual or Automatic Reset: Can be configured for manual reset with monitoring or automatic restart logic.\u003c\/li\u003e\n\u003cli\u003eCompact 22.5 mm Housing: Slim DIN rail mountable design conserves space in crowded control cabinets.\u003c\/li\u003e\n\u003cli\u003eGlobal Certification: Meets CCC, CE, UL, CUL, and KC safety standards for use in international applications.\u003c\/li\u003e\n\u003cli\u003e0.5-Second Reset Delay: Built-in delay helps avoid nuisance resets in power-up or stop-start conditions.\u003c\/li\u003e\n\u003cli\u003eCategory 3 Safety Rated: Suitable for medium-risk safety applications per EN ISO 13849-1.\u003c\/li\u003e\n\u003cli\u003eReliable Electromechanical Design: Designed for high durability in industrial E-stop and interlock monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 440R-B23020 MSR5T provides a compact, standards-compliant safety relay solution for mid-tier safety systems with flexible reset modes and high-output reliability.\u003c\/p\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":49105330536704,"sku":"440R-B23020","price":733.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0388\/5331\/2557\/files\/shopping_78_ec9922a6-ad37-417a-b0ca-a4eef93ae4e3.webp?v=1785545035","url":"https:\/\/alotechparts.com\/products\/440r-b23020-allen-bradley-safety-relay-msr5t-24v-acdc","provider":"Alo Tech Solutions","version":"1.0","type":"link"}