{"product_id":"x20do4529-b-r-x20-system-relay-digital-output-module","title":"Module de sortie relais numérique B\u0026R X20DO4529 X20","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DO4529 (X20DO4529)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a robust relay output module designed for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eB\u0026amp;R X20 System\u003c\/strong\u003e, specifically engineered to bridge the gap between low-voltage control logic and high-voltage field actuators. Featuring\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e4 digital outputs\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ewith\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003echange-over contacts\u003c\/strong\u003e, this module is the ideal solution for switching AC loads up to 115 VAC in demanding environments like power distribution centers, HVAC control systems, and chemical processing plants. By providing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003esingle-channel isolated outputs\u003c\/strong\u003e, the X20DO4529 ensures that electrical noise or faults on one field circuit do not propagate to adjacent channels or the sensitive backplane electronics, significantly enhancing system-wide reliability and safety.\u003c\/p\u003e\n\u003ch3\u003eAdvanced Relay Logic \u0026amp; Isolation\u003c\/h3\u003e\n\u003cp\u003eThe hardware architecture of the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DO4529\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis centered around mechanical relay technology, which offers superior resistance to voltage transients compared to solid-state alternatives. Each of the four channels operates as a change-over (form C) contact, providing both normally open (NO) and normally closed (NC) configurations. This flexibility allows engineers to design fail-safe circuits where a specific state must be maintained even upon loss of control power.\u003c\/p\u003e\n\u003cp\u003eThe internal isolation barrier provides a high level of dielectric strength between the field-side 115 VAC circuits and the internal X2X Link bus. This galvanic separation is critical for protecting the central PLC from surges and ground loops, ensuring deterministic communication even when switching inductive loads like small motors or solenoids.\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\u003eAttribute\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\u003e\u003cstrong\u003eX20DO4529\u003c\/strong\u003e\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\u003e\u003cstrong\u003eB\u0026amp;R (Bernecker + Rainer)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDigital Relay Output Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Outputs\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e4\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eContact Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eChange-over (Form C)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e115 VAC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSingle-channel (Channel-to-Channel)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eBus System\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eX2X Link\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eApprox. 0.2 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Weight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2.0 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\u003eCan the X20DO4529 switch DC loads?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile optimized for 115 VAC, the mechanical contacts can typically handle DC voltages; however, the breaking capacity is significantly reduced for inductive DC loads. Refer to the specific B\u0026amp;R derating curves for DC switching limits.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the advantage of single-channel isolation?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSingle-channel isolation means each of the four relays is electrically independent. This allows you to switch different phases or even different voltage sources on the same module without risk of cross-talk or short circuits between channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this module require a specific bus module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the X20DO4529 must be used with a compatible B\u0026amp;R X20 bus module (e.g., X20BM11) to provide the mechanical and electrical interface to the X20 I\/O station.\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\u003eContact Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWhen switching inductive loads (such as contactor coils or solenoids) at 115 VAC, it is highly recommended to install an external RC snubber circuit across the contacts. This minimizes arcing, reduces EMI, and significantly extends the mechanical life of the internal relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWiring Safety:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEnsure that all 115 VAC wiring is routed separately from low-voltage DC signal lines. Use ferrules on all stranded wire connections to the X20 terminal block to ensure a gas-tight, vibration-resistant connection.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFusing:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach individual channel should be protected by an external fast-acting fuse. This prevents a localized field fault from damaging the module's internal traces or welding the relay contacts in the event of a sustained overcurrent.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DO4529\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a significant advantage in \"mixed-signal\" cabinets where both logic-level signals and mains-level switching are required. Its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003echange-over contact\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003edesign allows for sophisticated interlocking logic without the need for external auxiliary relays. Furthermore, the modular nature of the X20 system allows the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eX20DO4529\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto be placed exactly where needed in the I\/O tree, reducing the length of expensive high-voltage cable runs. The ruggedized housing and high shipping weight of\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2.0 kg\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(for the protected kit) reflect its readiness for the rigors of global industrial shipping and long-term deployment in harsh industrial zones.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"B\u0026R","offers":[{"title":"Default Title","offer_id":53086379475307,"sku":"X20DO4529","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/x20do4529-gv2o4az5ozt.png?v=1776064813","url":"https:\/\/www.plcprotech.com\/fr\/products\/x20do4529-b-r-x20-system-relay-digital-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}