{"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","url":"https:\/\/www.plcprotech.com\/products\/weidmuller-8965400000-act20x-sdi-hdo-l-s-intrinsic-safety-valve-driver","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}