{"title":"Weidmuller ACT20 \/ Interface","description":"Weidmuller ACT20 and Interface components provide essential signal conditioning and galvanic isolation for modern industrial control systems. This collection features the ACT20M ultra-slim 6mm isolators for space-critical panels, the versatile ACT20P for process-level signal conversion, and the high-performance ACT20X intrinsically safe modules for hazardous areas. Complemented by high-density interface relays and analog signal conditioners, these modules ensure interference-free data transmission and robust electrical separation between field devices and the control level.","products":[{"product_id":"8965430000-weidmuller-act20x-hai-sao-s-hart-protocol-transparent-current-supply-isolators","title":"8965430000 | Weidmuller | ACT20X-HAI-SAO-S HART-Protocol Transparent Current-Supply Isolators","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003eWeidmuller 8965430000 (ACT20X-HAI-SAO-S)\u003c\/strong\u003e\u003cspan\u003e is a precision-engineered single-channel HART-protocol transparent current-supply isolator.\u003c\/span\u003e\u003cspan\u003e Designed for critical signal conditioning in hazardous areas,\u003c\/span\u003e\u003cspan\u003e this module provides an essential barrier between 4 to 20 mA field transmitters and the control system (DCS\/PLC).\u003c\/span\u003e\u003cspan\u003e The \u003c\/span\u003e\u003cstrong\u003e8965430000\u003c\/strong\u003e\u003cspan\u003e specializes in \"HART transparency,\u003c\/span\u003e\u003cspan\u003e\" allowing digital diagnostic and configuration data to pass through the analog loop without interference.\u003c\/span\u003e\u003cspan\u003e By utilizing galvanic isolation,\u003c\/span\u003e\u003cspan\u003e it eliminates ground loops and protects the control infrastructure from electrical transients.\u003c\/span\u003e\u003cspan\u003e Its ultra-high accuracy (\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e\u0026lt; 0.1%\u003c\/span\u003e\u003cspan\u003e span) and rapid 5 ms response time make it a standard choice for high-availability process plants,\u003c\/span\u003e\u003cspan\u003e including refineries and chemical processing facilities.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe ACT20X-HAI-SAO-S is a high-performance single-channel variant within the ACT20X family,\u003c\/span\u003e\u003cspan\u003e housed in a space-efficient 22.\u003c\/span\u003e\u003cspan\u003e5 mm DIN-rail mounting enclosure.\u003c\/span\u003e\u003cspan\u003e It features a versatile voltage supply range (19.\u003c\/span\u003e\u003cspan\u003e2 to 31.\u003c\/span\u003e\u003cspan\u003e2 VDC) and utilizes screw connections for secure,\u003c\/span\u003e\u003cspan\u003e vibration-resistant wiring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUnlike basic isolators,\u003c\/span\u003e\u003cspan\u003e this unit is fully software-configurable via the FDT\/DTM interface.\u003c\/span\u003e\u003cspan\u003e This allows engineers to monitor and set alarm thresholds for four specific fault conditions:\u003c\/span\u003e\u003cspan\u003e signal limit violations,\u003c\/span\u003e\u003cspan\u003e input line interruptions,\u003c\/span\u003e\u003cspan\u003e loss of supply voltage,\u003c\/span\u003e\u003cspan\u003e and internal device errors.\u003c\/span\u003e\u003cspan\u003e The integrated relay output provides a hardwired alarm contact capable of switching up to 125 VAC,\u003c\/span\u003e\u003cspan\u003e ensuring that critical faults are communicated to the safety system even if the primary analog signal is compromised.\u003c\/span\u003e\u003cspan\u003e Its low power consumption (\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e\u0026lt;= 1.0 W\u003c\/span\u003e\u003cspan\u003e) reduces the heat load within crowded marshalling cabinets.\u003c\/span\u003e\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\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eACT20X-HAI-SAO-S (8965430000)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWeidmuller\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1-Channel (Isolated)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput\/Output\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA (HART Transparent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 0.1% of span\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStep Response Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt;= 5 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Switching Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt;= 125 VAC \/ 110 VDC (Relay)\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\u003e\u0026lt;= 1.0 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eTemperature Coefficient\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 0.01% of span \/ deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFDT\/DTM Software\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Degree\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e117.2 x 22.5 x 113.6 mm\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\u003e0.186 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What is the benefit of the 5 ms step response time in this isolator?\u003c\/strong\u003e\u003cspan\u003eA1:\u003c\/span\u003e\u003cspan\u003e A 5 ms response time ensures that the isolator adds negligible delay to the control loop.\u003c\/span\u003e\u003cspan\u003e This is critical for high-speed pressure or flow control applications where even millisecond delays can lead to process instability or oscillations.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How does HART transparency assist with maintenance?\u003c\/strong\u003e\u003cspan\u003eA2:\u003c\/span\u003e\u003cspan\u003e It allows technicians to use a HART handheld communicator or asset management software (like AMS or PRM) to calibrate field transmitters directly through the isolator.\u003c\/span\u003e\u003cspan\u003e You do not need to bypass the module to access the transmitter's digital data.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can the alarm relay be used for more than just \"Line Interruption\"?\u003c\/strong\u003e\u003cspan\u003eA3:\u003c\/span\u003e\u003cspan\u003e Yes.\u003c\/span\u003e\u003cspan\u003e Through the FDT\/DTM software,\u003c\/span\u003e\u003cspan\u003e you can configure the relay to trigger based on \"Signal limit exceeded\" (e.\u003c\/span\u003e\u003cspan\u003eg.,\u003c\/span\u003e\u003cspan\u003e if the mA goes above 21 mA or below 3.\u003c\/span\u003e\u003cspan\u003e8 mA),\u003c\/span\u003e\u003cspan\u003e as well as internal device errors or power loss.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHART Loop Resistance:\u003c\/strong\u003e\u003cspan\u003e Ensure that the total loop resistance (including the transmitter,\u003c\/span\u003e\u003cspan\u003e field wiring,\u003c\/span\u003e\u003cspan\u003e and the isolator's internal resistance) remains within the transmitter's driving capacity.\u003c\/span\u003e\u003cspan\u003e A 250 Ohm resistor is typically required for HART communication,\u003c\/span\u003e\u003cspan\u003e and the ACT20X-HAI-SAO-S is designed to accommodate this while maintaining signal integrity.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eGrounding and Shielding:\u003c\/strong\u003e\u003cspan\u003e For maximum accuracy (\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e\u0026lt; 0.1%\u003c\/span\u003e\u003cspan\u003e span),\u003c\/span\u003e\u003cspan\u003e use twisted-pair shielded cables for the 4 to 20 mA signal.\u003c\/span\u003e\u003cspan\u003e Connect the shield at a single point (usually the DCS cabinet earth) to prevent ground loops that could induce noise into the high-precision analog measurement.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFirmware and DTM Sync:\u003c\/strong\u003e\u003cspan\u003e Always use the latest DTM (Device Type Manager) version from Weidmuller's WI-Manager suite when configuring the 8965430000.\u003c\/span\u003e\u003cspan\u003e This ensures that all diagnostic features and alarm parameters are correctly mapped and accessible during commissioning.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe 8965430000 is distinguished by its exceptional thermal stability (\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e\u0026lt; 0.01% \u003c\/span\u003e\u003cspan\u003eof span per deg C),\u003c\/span\u003e\u003cspan\u003e making it ideal for cabinets located in non-climate-controlled environments.\u003c\/span\u003e\u003cspan\u003e Its single-channel design offers modularity; a single loop failure or maintenance requirement only affects one process variable,\u003c\/span\u003e\u003cspan\u003e enhancing the overall \"Fault Tolerance\" of the I\/O node.\u003c\/span\u003e\u003cspan\u003e Furthermore,\u003c\/span\u003e\u003cspan\u003e the 1.\u003c\/span\u003e\u003cspan\u003e0W low-power architecture significantly extends the MTBF (Mean Time Between Failures) of the device by minimizing internal component stress caused by heat,\u003c\/span\u003e\u003cspan\u003e which is a primary concern in 24\/7 continuous process industries.\u003c\/span\u003e\u003c\/p\u003e","brand":"Weidmuller","offers":[{"title":"Default Title","offer_id":53102136099179,"sku":"8965430000","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/8965430000-w3mfpsg0czs.png?v=1776137161"},{"product_id":"weidmuller-8965400000-act20x-sdi-hdo-l-s-intrinsic-safety-valve-driver","title":"Weidmuller 8965400000 ACT20X-SDI-HDO-L-S Intrinsic Safety Valve Driver","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-64\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003eWeidmuller 8965400000 (ACT20X-SDI-HDO-L-S)\u003c\/strong\u003e\u003cspan class=\"citation-64 citation-end-64\"\u003e\u003cspan\u003e \u003c\/span\u003eis a specialized solenoid driver module designed to control intrinsically safe (IS) valves and indicators located in hazardous areas.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eAs a critical component of the ACT20X signal conditioner family, it serves as an isolator between safe-area control signals and Ex-zone field devices. Engineered for high-reliability process environments like chemical dosing and fuel storage, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8965400000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003econverts digital control signals from a PLC or DCS into the energy-limited power required to actuate solenoid valves in ATEX\/IECEx Zones 0, 1, or 2. Its integrated alarm relay and software-programmable parameters ensure that valve failures or supply losses are instantly reported, minimizing process risk and protecting expensive field assets.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe ACT20X-SDI-HDO-L-S features a single-channel, high-current output (HDO) architecture optimized for \"L\" (Low) power solenoid coils.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-63 citation-end-63\"\u003eIt provides galvanic 3-way isolation between the input, output, and power supply, ensuring that electrical faults in the hazardous area cannot reach the control cabinet backplane.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan class=\"citation-62 citation-end-62\"\u003eConfiguration is handled through the standardized FDT\/DTM software interface, allowing engineers to set precise current limits and define the behavior of the alarm relay.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThe unit monitors for \"No Supply Voltage\" and internal \"Device Error\" conditions, triggering a change-over in the nominal switching relay (up to 125 VAC) to notify the supervisory system.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-61 citation-end-61\"\u003eIts 10 ms step response time ensures rapid valve actuation for time-critical safety sequences, while the 22.5 mm slim housing facilitates high-density DIN-rail mounting.\u003c\/span\u003e\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\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eACT20X-SDI-HDO-L-S (8965400000)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWeidmuller\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\u003eValve Control \/ Solenoid Driver\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHigh Current (HDO), Low Power (L)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStep Response Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eVoltage Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e19.2 to 31.2 VDC\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\u003e\u0026lt;= 1.9 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAlarm Functions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNo supply voltage, Device error\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Switching Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt;= 125 VAC \/ 110 VDC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital (Switching)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Degree\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e117.2 x 22.5 x 113.6 mm\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\u003e0.170 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What does the \"L\" signify in the HDO-L-S suffix?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: The \"L\" indicates a Low-power output characteristic. This module is specifically tuned to drive intrinsically safe solenoids that require lower holding currents while maintaining sufficient voltage to ensure reliable actuation in hazardous zones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: Can I configure this module without specialized hardware?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: You need the Weidmuller USB interface cable and a PC with FDT\/DTM software (WI-Manager). This software-based configuration allows you to verify internal diagnostics and set custom alarm conditions that are not possible with hardware DIP switches.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Is the alarm relay output \"Fail-Safe\"?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: Yes. The alarm relay is typically configured to de-energize (open contact) upon a loss of supply voltage or a device error, ensuring that the control system detects a fault even if the module loses power entirely.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntrinsic Safety Compliance:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure that the \"Entity Parameters\" (\u003cspan class=\"math-inline\"\u003e$U_o, I_o, P_o$\u003c\/span\u003e) of the 8965400000 match or exceed the requirements of your solenoid valve. The total inductance and capacitance of the field wiring must be calculated to remain within the ATEX\/IECEx limits for the specific zone of installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Torque:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor the screw connections, use a calibrated screwdriver to apply the manufacturer's recommended torque. Loose connections in valve control circuits are a leading cause of \"Device Error\" alarms due to increased contact resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCabinet Ventilation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen mounting several ACT20X modules side-by-side, allow for sufficient natural convection. While the module is rated for 0-95% humidity, a dry, dust-free environment will significantly extend the lifespan of the internal isolation transformers and switching relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-60 citation-end-60\"\u003eThe 8965400000 is distinguished by its 3-way isolation and 10 ms response time, making it an ideal choice for Emergency Shutdown (ESD) applications.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIts software-centric configuration allows for \"digital fingerprinting\" of the device setup, making it easy for maintenance teams to replicate settings across multiple units during plant expansions. Furthermore, the inclusion of a high-voltage switching relay (\u003cspan class=\"math-inline\"\u003e125 VAC\u003c\/span\u003e) allows this module to directly interface with legacy 110V alarm systems, eliminating the need for interposing relays and simplifying the overall control cabinet bill of materials.\u003c\/p\u003e","brand":"Weidmuller","offers":[{"title":"Default Title","offer_id":53102138360171,"sku":"ACT20X-SDI-HDO-L-S","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/8965400000-jh3rntmugs0.png?v=1776137158"},{"product_id":"8965440000-weidmuller-act20x-2hai-2sao-s-hart-transparent-isolator","title":"8965440000 Weidmuller ACT20X-2HAI-2SAO-S HART Transparent Isolator","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-47\"\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cstrong\u003eWeidmuller 8965440000 (ACT20X-2HAI-2SAO-S)\u003c\/strong\u003e\u003cspan class=\"citation-47 citation-end-47\"\u003e\u003cspan\u003e \u003c\/span\u003eis a sophisticated 2-channel HART-protocol transparent current-supply isolator designed for hazardous area applications.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003ePart of the ACT20X series, this module provides signal isolation and conditioning for 4 to 20 mA loops while maintaining full transparency for bidirectional HART communication. Engineered for high-stakes environments such as chemical processing and offshore platforms, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8965440000\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eeffectively decouples field devices from the control system, eliminating ground loops and protecting sensitive DCS\/PLC inputs from high-voltage transients. Its primary value lies in its high accuracy (\u003cspan class=\"math-inline\"\u003e\u003c\/span\u003e\u0026lt; 0.1% Span) and integrated alarm functions, which proactively monitor for line interruptions and device errors to maximize process availability.\u003c\/p\u003e\n\u003ch3\u003eTechnical Configuration\u003c\/h3\u003e\n\u003cp\u003eThe ACT20X-2HAI-2SAO-S is a dual-channel powerhouse housed in a slim 22.5 mm enclosure, saving significant DIN-rail space.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-46 citation-end-46\"\u003eIt operates on a wide supply voltage range of 19.2 to 31.2 VDC and is fully configurable via FDT\/DTM software, allowing for precise adjustment of signal limits and alarm thresholds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eOne of its standout features is \"HART Transparency,\" which ensures that digital diagnostic data from smart transmitters can pass through the isolator without distortion.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-45 citation-end-45\"\u003eThe module also features a dedicated relay alarm output for collective error messaging.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIt monitors for four distinct fault conditions: signal limit violations, input line interruptions, supply voltage loss, and internal device errors. The screw connection system provides high mechanical stability, ensuring reliable electrical contact even in high-vibration industrial settings.\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\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\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eACT20X-2HAI-2SAO-S (8965440000)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eWeidmuller\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2-Channel (Isolated)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eInput\/Output\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4 to 20 mA (HART Transparent)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 0.1% of span\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStep Response Time\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt;= 5 ms\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNominal Switching Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt;= 125 VAC \/ 110 VDC (Relay)\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\u003e\u0026lt;= 1.9 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eFDT\/DTM Software\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProtection Degree\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIP20\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temp\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-20 to 60 deg C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e117.2 x 22.5 x 113.6 mm\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\u003e0.212 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eTechnical FAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: What does \"HART Transparent\" mean for this isolator?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: It means the module does not strip away the high-frequency digital signal superimposed on the 4 to 20 mA analog loop. This allows your DCS or handheld communicator to \"see\" and configure smart field devices through the isolator.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How do the alarm functions improve plant safety?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: The module features a physical relay contact that opens or closes when a fault occurs (like a broken wire). This provides an immediate hardware-level notification to the safety system, independent of the analog signal value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Can the ACT20X-2HAI-2SAO-S be installed directly in ATEX Zone 0?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: The module itself must be installed in a safe area or Zone 2, but it is designed to interface with intrinsic safety (IS) signals coming from Zone 0, 1, or 2. Always check the specific Ex-certification markings on the device housing.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering \u0026amp; Installation Guide\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan class=\"citation-44\"\u003e\u003c\/span\u003e\u003cstrong\u003eSoftware Configuration:\u003c\/strong\u003e\u003cspan class=\"citation-44 citation-end-44\"\u003e\u003cspan\u003e \u003c\/span\u003eUse the Weidmuller WI-Manager (FDT frame) and the specific DTM for ACT20X to set up the device.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eThis allows you to define \"Active\" or \"Passive\" input modes and configure the fail-safe behavior of the relay output.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eThermal Management:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAlthough the module is rated up to 60 deg C, maintain a 5 mm gap between adjacent high-power modules if the ambient temperature in the cabinet consistently exceeds 45 deg C. This prevents the internal \"Step response time\" from drifting due to thermal stress.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring and Termination:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFor HART communication integrity, ensure that the total loop impedance (including the 250 Ohm resistor) does not exceed the module's driving capability. Use shielded twisted-pair cables for the 4 to 20 mA loops to maintain the \u0026lt; 0.1% accuracy in high EMI environments.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"citation-43 citation-end-43\"\u003eThe ACT20X-2HAI-2SAO-S is distinguished by its extremely low temperature coefficient (\u003c\/span\u003e\u003cspan class=\"math-inline\"\u003e\u0026lt; 0.01% \u003c\/span\u003e\u003cspan class=\"citation-42 citation-end-42\"\u003eof span per deg C), ensuring that signal measurements remain precise regardless of seasonal temperature swings in the control room.\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"citation-41 citation-end-41\"\u003eIts rapid 5 ms response time makes it suitable for fast-acting control loops and safety-instrumented systems (SIS).\u003csup class=\"superscript\"\u003e\u003c\/sup\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eFurthermore, the 2-channel design provides a 50% reduction in DIN-rail footprint compared to standard single-channel isolators, making it the ideal choice for high-density marshalling cabinets in modernized plant architectures.\u003c\/p\u003e","brand":"Weidmuller","offers":[{"title":"Default Title","offer_id":53102138589547,"sku":"ACT20X-2HAI-2SAO-S","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/8965440000-ngibj2i2kgn.png?v=1776137163"}],"url":"https:\/\/www.plcprotech.com\/collections\/weidmuller-act20-interface.oembed","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}