{"product_id":"t8461-ics-triplex-trusted-tmr-digital-output-module-24-48vdc","title":"T8461 ICS Triplex Trusted TMR Digital Output Module 24\/48VDC","description":"\u003ch2\u003eICS Triplex T8461 Digital Output Module\u003c\/h2\u003e\n\u003cp\u003eConfigured for fault-tolerant discrete load switching in high-integrity control applications, the \u003cstrong\u003eICS Triplex T8461\u003c\/strong\u003e (\u003cstrong\u003eT8461\u003c\/strong\u003e Digital Output Module) provides direct physical\/electrical execution. The hardware manages 40 discrete output channels organized into five independent, isolated power groups of eight channels each. Operating directly within the Trusted Triple Modular Redundant (TMR) safety platform, this component drives field loads within a voltage spectrum of 18 VDC to 60 VDC while processing algorithmic diagnostic verifications.\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\u003eT8461\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICS Triplex (Rockwell Automation)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUnited Kingdom\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Trusted module form factor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e0 deg C to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e22 W (System Supply) \/ 18 W (Field Supply at 24 VDC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Channels\u003c\/td\u003e\n\u003ctd\u003e40 (5 groups of 8 channels)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Voltage Range\u003c\/td\u003e\n\u003ctd\u003e18 - 60 VDC (supports 24 VDC and 48 VDC nominal systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Voltage Range\u003c\/td\u003e\n\u003ctd\u003e20 - 32 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Current Rating\u003c\/td\u003e\n\u003ctd\u003e0.75 A continuous per channel \/ 6 A maximum per power group\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Load Current\u003c\/td\u003e\n\u003ctd\u003e25 mA (required for line monitoring)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOn-State Resistance\u003c\/td\u003e\n\u003ctd\u003e0.6 Ohm nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e50 V sustained between groups \/ 1000 V peak\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Timing\u003c\/td\u003e\n\u003ctd\u003e0.5 ms turn-on\/off delay; 0.5 ms sample update time\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eHigh Reliability Safety Control (SIS) Technical Attributes\u003c\/h3\u003e\n\u003cp\u003eThe module operates on a Triple Modular Redundancy (TMR) 2oo3 architecture, containing three independent execution pathways isolated physically and galvanically from each other. Each channel performs hardware-based 2-out-of-3 voting directly before signal output, mitigating single-point failures and assuring continuous operation even if an individual component pathway faults. Galvanic isolation limits are enforced at 50 V sustained between power groups and up to 1000 V peak relative to the system logic, protecting internal components from external electrical interference and cross-talk. Fail-safe state execution routines are hardcoded into the internal circuitry; upon detection of an unrecoverable internal hardware deviation or electronic short circuit, the affected pathways activate an electronic latching protection routine and force the corresponding field load to a designated safe state.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the consequence of connecting a field device that draws less than the specified 25 mA minimum load current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e If the field load drops below 25 mA, the internal line monitoring circuitry cannot accurately determine loop integrity. This condition causes the module to report a false open-circuit configuration fault through the system diagnostics, though physical switching remains operational.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the electronic short-circuit protection respond during a high-current field fault?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The module executes an electronic latching shutdown on the affected channel when current limits are breached. The fault is automatically reported to the controller, and the channel remains latched in a safe, de-energized state until the technician clears the field short and issues a software reset command.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can different nominal field voltages be applied simultaneously across the module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, because the 40 channels are split into five independent power groups with 50 V sustained isolation between them, technicians can wire separate groups to distinct 24 VDC or 48 VDC external field supplies within the 18-60 VDC operational envelope.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cp\u003eField technicians must verify that all wiring complies with standard industrial instrumentation protocols. Field lines must use properly sized copper conductors terminated securely into the corresponding Trusted field termination assembly. Maintain rigid physical separation between low-voltage DC control loops and high-voltage AC distribution cabling to prevent electromagnetic coupling. Internal system grounding bars must connect directly to the plant safety earth with a low-impedance path, keeping shield drain wires un-spliced and grounded at a single designated terminal point. Slide the module chassis smoothly along the guide rails of the Trusted rack until the rear connectors seat completely into the backplane power and communication matrix. Fasten all mechanical retention screws to lock the assembly against vibration, and ensure that the enclosure exhibits adequate rack ventilation to dissipate thermal loads generated under full 6 A group current conditions.\u003c\/p\u003e","brand":"ICS Triplex","offers":[{"title":"Default Title","offer_id":42870824370266,"sku":"T8461","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/399_3ef323c2-a194-42d7-9bac-3d4b765389b5.jpg?v=1772419761","url":"https:\/\/www.spareoil.com\/products\/t8461-ics-triplex-trusted-tmr-digital-output-module-24-48vdc","provider":"SpareOil Automation","version":"1.0","type":"link"}