{"product_id":"abb-do828-125v-dc-relay-output-for-800xa-systems","title":"ABB DO828 125V DC Relay Output for 800xA Systems","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe ABB DO828 (3BSE069055R1) serves as a high-density relay interface for the ABB S800 I\/O system, providing 16 independent output channels for switching high-voltage loads. This 100% brand new, original module supports a broad operating range up to 250V AC or 125V DC with a continuous current capacity of 2A per channel. Unlike standard group-isolated modules, the DO828 features full channel-to-channel galvanic isolation, making it the primary choice for complex power distribution and interlocking tasks in System 800xA and Symphony Plus control architectures.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cp\u003eThe DO828 integrates robust mechanical relays with optical isolation barriers to ensure deterministic switching performance and backplane protection.\u003c\/p\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\u003eTechnical Detail\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 Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eDO828\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3BSE069055R1\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eNumber of Channels\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e16 Channels (Relay Output)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Output Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 V AC \/ 125 V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMax Continuous Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2 A\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Architecture\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIndividually Isolated (Channel-to-Channel \u0026amp; Common)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eRated Insulation Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e250 V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDielectric Test Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2000 V AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Dissipation\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e3.5 W (Typical)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eStatus Indicators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eF(ault), R(un), W(arning), Individual Channel LEDs\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions (HxWxD)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e11.9 cm x 4.5 cm x 10.2 cm\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\u003e0.31 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003eThe ABB DO828 3BSE069055R1 resolves sophisticated electrical isolation and voltage-switching challenges in industrial environments:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIndividual Channel Isolation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEach output channel operates through an independent optical isolation barrier. This architecture prevents a single-channel failure or electrical surge from migrating to adjacent channels or the central ModuleBus, ensuring maximum system availability for critical interlocking logic.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Voltage Switching Versatility:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe module handles both 125V DC and 250V AC loads directly. This flexibility allows engineers to drive diverse field equipment—such as motor starters, large solenoids, and high-wattage signaling lamps—without requiring secondary interposing relays or additional cabinet space.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eActive Voltage Supervision:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe DO828 monitors the 12V relay supply voltage derived from the ModuleBus. If the supply voltage disappears, the unit triggers a Warning LED and sends an error signal to the controller. This feature allows maintenance teams to detect power issues immediately before they result in process failures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIntegrated EMC Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEvery channel includes dedicated EMC protection components and a relay driver circuit. These components suppress electromagnetic noise generated during relay switching, preventing interference with sensitive analog instrumentation nearby and extending the life of the relay contacts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eCan I disable the relay supply voltage supervision?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes. The supervision function is parameter-driven. You can enable or disable this feature through the system configuration software (e.g., Control Builder M) based on your specific application requirements.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the DO828 require a specific Module Termination Unit (MTU)?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe DO828 integrates with the standard S800 I\/O termination units. Ensure the selected MTU supports the high-voltage ratings (250V) required by the DO828 to maintain compliance with safety and insulation standards.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens if a single relay fails?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eBecause all 16 channels are individually isolated, a mechanical or electrical failure in one relay will not compromise the operation of the other 15 channels. The module's Fault (F) LED will indicate a hardware anomaly, which you can further diagnose through the DCS alarm logs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module suitable for safety-related interlocks?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWhile the DO828 provides high isolation (2000V AC dielectric test), users should consult the Safety Manual for the S800 I\/O system to determine if it meets the specific SIL (Safety Integrity Level) requirements for their safety instrumented system (SIS) applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":44126693326947,"sku":"DO828 3BSE069055R1","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0583\/5246\/8067\/files\/246_87191a6a-5748-44e2-940c-3ad80330f428.jpg?v=1776652188","url":"https:\/\/www.autocontrolglobal.com\/products\/abb-do828-125v-dc-relay-output-for-800xa-systems","provider":"AutoControl Global","version":"1.0","type":"link"}