{"product_id":"yokogawa-sed4d-01-digital-terminal-board","title":"Yokogawa SED4D-01 Digital Terminal Board","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eSED4D-01\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-integrity digital relay terminal board designed for the Yokogawa ProSafe-RS safety architecture.\u003c\/p\u003e\n\u003cp\u003eThis module functions as a secure\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efield-side digital output interface\u003c\/strong\u003e, connecting safety control units (SCUs) or safety node units (SNUs) to external safety actuators and signaling devices.\u003c\/p\u003e\n\u003cp\u003eThe SED4D-01 provides\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e8 independent output channels\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eusing\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eForm A (Normally Open) relay contacts\u003c\/strong\u003e, enabling reliable switching of industrial loads while maintaining strong electrical isolation between the safety controller and field equipment.\u003c\/p\u003e\n\u003cp\u003eKey design features include:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eGalvanic isolation for safety signal protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHigh load switching capability for industrial actuators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eRuggedized construction for harsh environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompatibility with Emergency Shutdown (ESD) and Fire \u0026amp; Gas (F\u0026amp;G) systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe module is commonly installed in Remote Instrument Enclosures (RIEs) or field auxiliary control rooms.\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 Identifier\u003c\/td\u003e\n\u003ctd\u003eSED4D-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModule Function\u003c\/td\u003e\n\u003ctd\u003eDigital relay terminal board\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSystem Platform\u003c\/td\u003e\n\u003ctd\u003eProSafe-RS SIS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannel Count\u003c\/td\u003e\n\u003ctd\u003e8 channels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Contact Type\u003c\/td\u003e\n\u003ctd\u003eForm A (Normally Open)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Load Rating\u003c\/td\u003e\n\u003ctd\u003e250 V AC, 5 A per channel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLogic Supply Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V DC ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 °C to +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePhysical Dimensions\u003c\/td\u003e\n\u003ctd\u003e120 mm × 93 mm × 29 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.4 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWiring Interface\u003c\/td\u003e\n\u003ctd\u003eScrew terminal and I\/O cable connectors\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication and Safety Use\u003c\/h3\u003e\n\u003cp\u003eThe SED4D-01 is commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eHydrocarbon processing facilities\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eOffshore oil and gas platforms\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003ePower generation safety systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMaritime safety control systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is typically paired with digital output control modules to drive:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eSolenoid valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotor starters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAlarm indicators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSafety shutdown actuators\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBecause relay outputs can handle higher voltage and current loads compared to semiconductor outputs, this module is ideal for final element control in safety loops.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of relay contacts does the SED4D-01 use?\u003c\/strong\u003e\u003cbr\u003eThe module uses\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eForm A (Normally Open)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erelay contacts, which support fail-safe operation. In the absence of control power or signal, the relay returns to an open state, helping maintain safe system conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan the SED4D-01 be used in non-safety applications?\u003c\/strong\u003e\u003cbr\u003eWhile possible, this module is specifically designed and certified for use within ProSafe-RS safety systems. Using it in certified safety loops helps maintain compliance with SIL (Safety Integrity Level) requirements.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":51834363117880,"sku":"SED4D-01","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/SED4D-011.jpg?v=1772070832","url":"https:\/\/www.automodulexpert.com\/products\/yokogawa-sed4d-01-digital-terminal-board","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}