{"product_id":"yokogawa-spw481-53-power-supply-module","title":"Yokogawa SPW481-53 Power Supply Module","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSPW481-53\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a mission-critical power supply unit specifically engineered for the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eYokogawa ProSafe-RS Safety Instrumented System (SIS)\u003c\/strong\u003e. In environments where system uptime is directly tied to operational safety, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSPW481-53\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eprovides a high-reliability DC power bus to energize CPUs, communication modules, and safety I\/O. Its architecture is optimized for high-availability configurations, ensuring that critical safety loops remain functional even during localized power disturbances.\u003c\/p\u003e\n\u003cp\u003eA standout feature of the SPW481-53 is its\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003ehot-swappable capability\u003c\/strong\u003e, allowing maintenance teams to replace units without interrupting the safety controller’s logic execution. With integrated fused outputs and programmable relay contacts for status monitoring, this module offers a layer of diagnostic intelligence that standard power units lack.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel Identification\u003c\/td\u003e\n\u003ctd\u003eSPW481-53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Compatibility\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS Safety Instrumented System (SIS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Input Voltage\u003c\/td\u003e\n\u003ctd\u003e100 V to 120 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Frequency Range\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eDual-redundant configuration ready\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaintenance Feature\u003c\/td\u003e\n\u003ctd\u003eHot-swappable under live system power\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Protection\u003c\/td\u003e\n\u003ctd\u003eIntegrated fused circuitry\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMonitoring Interface\u003c\/td\u003e\n\u003ctd\u003eProgrammable relay outputs for \"Power Ready\" status\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Depth\u003c\/td\u003e\n\u003ctd\u003e14.6 cm (5.75 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Height\u003c\/td\u003e\n\u003ctd\u003e20.3 cm (8.0 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Width\u003c\/td\u003e\n\u003ctd\u003e5.1 cm (2.0 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Weight\u003c\/td\u003e\n\u003ctd\u003e0.9 kg \u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eIndustrial Applications\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003ePowering Safety Control Units (SCU) in emergency shutdown systems (ESD).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eProviding redundant power for Fire and Gas (F\u0026amp;G) systems in offshore platforms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnsuring continuous logic solver operation in high-pressure protection systems (HIPPS).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the benefit of the \"Programmable Relay Outputs\" on this module?\u003c\/strong\u003e\u003cbr\u003eThe SPW481-53 uses these relays to send real-time health status to DCS or SIS alarm management software, allowing immediate notification if a power leg fails.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the SPW481-53 be mixed with different voltage versions in a redundant rack?\u003c\/strong\u003e\u003cbr\u003eFor proper load balancing and safety compliance within ProSafe-RS racks, it is strongly recommended to use identical models (e.g., two SPW481-53 units) in a redundant pair.\u003c\/p\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":48746746052860,"sku":"SPW481-53","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/SPW481-53.jpg?v=1772615216","url":"https:\/\/www.electronicplc.com\/products\/yokogawa-spw481-53-power-supply-module","provider":"Electronic PLC","version":"1.0","type":"link"}