{"product_id":"allen-bradley-1768-l43s-compactlogix-guardlogix-safety-controller","title":"Allen Bradley 1768-L43S CompactLogix GuardLogix Safety Controller","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eAllen Bradley 1768-L43S\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efunctions as a high-performance GuardLogix controller within the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eCompactLogix\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003efamily. This module integrates safety and standard control into a single platform, reducing hardware footprint and simplifying system architecture. It manages complex safety functions while simultaneously executing standard logic and motion commands. We provide this unit as\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal factory stock to ensure your high-integrity safety loops meet all regulatory and performance requirements from day one.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAllen Bradley \/ Rockwell Automation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSeries\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eCompactLogix GuardLogix (Series A \u0026amp; B)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eUser Memory\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 MB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBackplane Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.4 Amps @ 24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e33.6 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7.5 Watts\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e30 Volts Continuous\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1.00 lbs (0.45 kg)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModule Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eProgrammable Automation Controller\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated Safety and Standard Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1768-L43S eliminates the need for separate safety relays. It executes safety-rated logic alongside standard machine control, allowing engineers to synchronize safety and motion tasks over a single network. This integration reduces wiring complexity and accelerates commissioning.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Power Efficiency:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eDespite its processing capability, the module dissipates only\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e7.5 Watts\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eof power. This low thermal footprint prevents heat buildup in high-density control cabinets, protecting nearby sensitive electronics and extending the overall lifespan of the enclosure components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eRobust Signal Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe controller provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e30V continuous isolation\u003c\/strong\u003e, shielding the internal processor from common-mode electrical noise and ground loops. This hardware-level protection ensures stable logic execution in electrically noisy industrial environments near high-power VFDs or motors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVersatile Hardware Expansion:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe 1768-L43S supports both 1768 and 1769 I\/O modules. This dual-bus architecture allows for high-speed motion modules on the 1768 side while utilizing cost-effective 1769 modules for standard discrete and analog I\/O, optimizing the cost-per-point ratio.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the 1768-L43S require a safety partner module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. To achieve SIL 3 safety ratings, you must pair the 1768-L43S with a compatible safety partner module (such as the 1768-L43S-SP). The partner module provides the redundancy required for the safety task to cross-check logic execution.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I handle the high backplane current demand of 1.4 Amps?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eEnsure your 1768 power supply (such as the 1768-PA3 or 1768-PB3) provides sufficient amperage for both the controller and the safety partner. Always calculate the total current draw of all 1768\/1769 modules to prevent unexpected system shutdowns or power supply overload.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this controller compatible with both Series A and Series B hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 1768-L43S supports both Series A and B. However, always verify that your firmware version in RSLogix 5000\/Studio 5000 matches the hardware revision to ensure full access to all diagnostic and safety features.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the condition of this specific unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis unit is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e100% Brand New\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eoriginal stock. It arrives in its original, factory-sealed Allen Bradley packaging with the UPC\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e612598672189\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eintact. We do not provide refurbished or used surplus.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen-Bradley","offers":[{"title":"Default Title","offer_id":52804697620789,"sku":"1768-L43S","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0973\/7630\/5461\/files\/1768-L43S.png?v=1777531414","url":"https:\/\/www.5gplc.com\/products\/allen-bradley-1768-l43s-compactlogix-guardlogix-safety-controller","provider":"High Five PLC Solution Limited","version":"1.0","type":"link"}