{"product_id":"honeywell-mtl4511-digital-input-relay-switch-barrier","title":"Honeywell MTL4511 Digital Input Relay Switch Barrier","description":"\u003cp\u003eThe \u003cstrong\u003eHoneywell MTL4511\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMTL4511\u003c\/strong\u003e Drive Interface Module, operates as a dedicated hardware component for intrinsic safety isolation and line fault detection within MTL4500 series backplane systems.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMTL4511\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.22 lbs (0.10 kg)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eCompact MTL4500 series backplane footprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eLow-power backplane bus draw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e1-channel digital input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eChangeover (C\/O) relay output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFault Monitoring\u003c\/td\u003e\n\u003ctd\u003eLine Fault Detection (LFD) for open\/short circuit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eMTL4500 range backplane mounting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Architecture\u003c\/td\u003e\n\u003ctd\u003eIntrinsic safety (Ex i) isolation barrier\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eIntrinsic Safety Barriers \u0026amp; Field Network Protection\u003c\/h3\u003e\n\u003cp\u003eEngineered for high-density safety applications, the MTL4511 provides galvanically isolated intrinsic safety (Ex i) barrier protection between field switches located in hazardous areas and safe-area control logic. Built-in Line Fault Detection (LFD) continuously monitors field wiring for open-circuit or short-circuit conditions, triggering diagnostic alarm states without compromising signal loop integrity. Combined with robust surge voltage protection limits and high DIN-rail backplane mounting stability, the module isolates backplane buses from field-side voltage transients and ground potential differences.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the MTL4511 signal a line fault condition in field wiring?\u003c\/p\u003e\n\u003cp\u003eA: The integrated Line Fault Detection (LFD) circuit monitors field loop impedance. Upon detecting an open or short circuit on the hazardous-area field wiring, the module de-energizes the diagnostic output relay and triggers local LED indication.\u003c\/p\u003e\n\u003cp\u003eQ: How is the MTL4511 mounted within the control cabinet?\u003c\/p\u003e\n\u003cp\u003eA: The MTL4511 is designed for direct plug-in mounting onto standard MTL4500 series backplanes, which handle primary power distribution and control signal routing without individual discrete wiring to the module body.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eEnsure the MTL4500 series backplane is completely de-energized or verify safe area conditions before installing or removing the barrier module.\u003c\/li\u003e\n\u003cli\u003eAlign the module edge pins with the backplane connector slot and press firmly until the side retention clips click into position.\u003c\/li\u003e\n\u003cli\u003eTerminate hazardous-area field switch wiring to the blue designated IS backplane screw terminals, keeping intrinsic safety cables physically separated from non-IS wiring.\u003c\/li\u003e\n\u003cli\u003eConnect the backplane earth grounding strip directly to the main hazardous area ground bus to maintain intrinsic safety surge protection limits.\u003c\/li\u003e\n\u003cli\u003eApply backplane power and verify that the module status LED indicates normal line condition before enabling safety trip logic.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":48761118425278,"sku":"MTL4511","price":172.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/1145\/5422\/files\/MTL4511_20.png?v=1787192030","url":"https:\/\/www.autooiltech.com\/products\/honeywell-mtl4511-digital-input-relay-switch-barrier","provider":"AutoOilTech Limited","version":"1.0","type":"link"}