{"product_id":"invensys-triconex-3623-16-ch-supervised-do-120vdc","title":"Invensys Triconex 3623 16-Ch Supervised DO 120VDC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e3623\u003c\/strong\u003e is a \u003cstrong\u003e16-channel supervised TMR digital output module\u003c\/strong\u003e manufactured by \u003cstrong\u003eInvensys Triconex\u003c\/strong\u003e for the \u003cstrong\u003eTricon safety instrumented system\u003c\/strong\u003e. Operating at \u003cstrong\u003e120 VDC\u003c\/strong\u003e, it drives safety-critical field devices such as solenoid valves, motor starters, and shutdown relays with \u003cstrong\u003evoltage loopback verification\u003c\/strong\u003e on each channel. The module's \u003cstrong\u003esupervised output circuitry\u003c\/strong\u003e independently verifies the operation of each output switch, detecting latent faults and wiring failures without requiring actual process actuation.\u003c\/p\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem:\u003c\/strong\u003e Invensys Triconex Tricon SIS\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e TMR Supervised Digital Output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChannels:\u003c\/strong\u003e 16 outputs, commoned\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNominal Voltage:\u003c\/strong\u003e 120 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Range:\u003c\/strong\u003e 90–150 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Voltage:\u003c\/strong\u003e 160 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Drop:\u003c\/strong\u003e \u0026lt; 1.5 VDC typical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCurrent Rating:\u003c\/strong\u003e 0.8 A per point, 4 A surge per 10 ms\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Required Load:\u003c\/strong\u003e 30 mA\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoad Leakage:\u003c\/strong\u003e 4 mA maximum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuses (Field Termination):\u003c\/strong\u003e 1 A fast-acting per output\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Isolation:\u003c\/strong\u003e 1500 VDC \/ 2500 VDC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Module Load:\u003c\/strong\u003e \u0026lt; 10 watts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiagnostic Indicators:\u003c\/strong\u003e PASS, FAULT, ACTIVE, LOAD\/FUSE per point\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFeatures \u0026amp; Benefits\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupervised Loopback Verification:\u003c\/strong\u003e Voltage loopback circuits verify each output switch independently of load presence, catching latent faults before they impact safety.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuadruplicated Voter Circuitry:\u003c\/strong\u003e Four redundant voter paths process TMR output commands, guaranteeing correct field state even with multiple internal faults.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-Voltage DC Drive:\u003c\/strong\u003e 120 VDC output with 0.8 A continuous and 4 A surge capability drives large inductive loads directly.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePer-Point Fuse Protection:\u003c\/strong\u003e Individual 1 A fast-acting fuses on the ETP isolate short-circuit faults to a single channel.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHot-Spare Support:\u003c\/strong\u003e Enables online replacement of a failed module by a spare without interrupting the safety function.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between 3623 and 3624?\u003c\/strong\u003e\u003cbr\u003eA: The \u003cstrong\u003e3623\u003c\/strong\u003e is a \u003cstrong\u003e120 VDC supervised TMR DO\u003c\/strong\u003e with 16 commoned outputs. The \u003cstrong\u003e3624\u003c\/strong\u003e is a \u003cstrong\u003e24 VDC opto-isolated commoned supervised TMR DO\u003c\/strong\u003e for lower voltage applications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What does the LOAD\/FUSE alarm indicate?\u003c\/strong\u003e\u003cbr\u003eA\u0026gt; The \u003cstrong\u003eLOAD\/FUSE\u003c\/strong\u003e indicator activates when the detected field voltage does not match the commanded output state, signaling an open load, blown fuse, or wiring fault.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 3623 be mixed with 3625 in the same chassis?\u003c\/strong\u003e\u003cbr\u003eA\u0026gt; Yes, different Tricon output modules can coexist in the same chassis provided each is installed in its correctly keyed slot and the ETP is matched to the module type.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eInstall the module into a \u003cstrong\u003eTricon digital output slot\u003c\/strong\u003e in the chassis.\u003c\/li\u003e\n  \u003cli\u003eConnect \u003cstrong\u003e120 VDC field power\u003c\/strong\u003e to the external termination panel (ETP).\u003c\/li\u003e\n  \u003cli\u003eWire each output to the \u003cstrong\u003efield device coil\u003c\/strong\u003e with proper polarity for DC loads.\u003c\/li\u003e\n  \u003cli\u003eInstall \u003cstrong\u003e1 A fast-acting fuses\u003c\/strong\u003e on each ETP output circuit.\u003c\/li\u003e\n  \u003cli\u003eInstall \u003cstrong\u003efreewheeling diodes\u003c\/strong\u003e across all inductive DC loads to protect output switches.\u003c\/li\u003e\n  \u003cli\u003eVerify loopback diagnostics by commanding each output ON and OFF while monitoring the LOAD\/FUSE indicator.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSelection Tips\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVoltage Standard:\u003c\/strong\u003e The 3623 is rated for 120 VDC. For 24 VDC safety outputs, select the 3624 or 3604E.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLoad Verification:\u003c\/strong\u003e Ensure each field device draws at least 30 mA for reliable loopback detection. Add a parallel resistor if necessary.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInductive Protection:\u003c\/strong\u003e Specify fast-recovery freewheeling diodes rated for the 120 VDC coil voltage and surge current.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eETP Matching:\u003c\/strong\u003e Use an ETP designed for 120 VDC supervised outputs with individual fuse positions.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Triconex","offers":[{"title":"Default Title","offer_id":53993632465080,"sku":"3623","price":238.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0935\/6132\/3704\/files\/3623_.r270_c78cf057-400b-43c5-b43d-c5051263d1bd.png?v=1787815163","url":"https:\/\/www.globalpetroparts.com\/products\/invensys-triconex-3623-16-ch-supervised-do-120vdc","provider":"Global Petro Parts Automation","version":"1.0","type":"link"}