{"product_id":"do821-abb-relay-output-module-8-channel-230v","title":"DO821 ABB - Relay Output Module | 8-Channel 230V","description":"\u003ch2\u003eABB DO821 Relay Output Module for S800 I\/O Systems\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eABB\u003c\/strong\u003e \u003cstrong\u003eDO821\u003c\/strong\u003e provides reliable relay output control for industrial automation applications. This 8-channel module handles high voltage loads up to 250V AC\/DC with robust 3A contacts. It offers individual channel isolation and comprehensive diagnostic capabilities.\u003c\/p\u003e\n\u003ch3\u003eKey Technical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e ABB\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e \u003cstrong\u003eDO821\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOutput Channels: 8 relay channels\u003c\/li\u003e\n\u003cli\u003eVoltage Rating: 5-250V AC\/DC range\u003c\/li\u003e\n\u003cli\u003eCurrent Capacity: 3A per channel continuous\u003c\/li\u003e\n\u003cli\u003eContact Type: Normally Closed (NC) configuration\u003c\/li\u003e\n\u003cli\u003eIsolation: Individual channel-to-channel isolation\u003c\/li\u003e\n\u003cli\u003ePower Dissipation: 2.9W typical operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Characteristics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutput Type: Relay contacts with NC operation\u003c\/li\u003e\n\u003cli\u003eMaximum Voltage: 250V AC\/DC working voltage\u003c\/li\u003e\n\u003cli\u003eDielectric Strength: 2000V AC test voltage\u003c\/li\u003e\n\u003cli\u003eCurrent Consumption: 60mA at +5V ModuleBus\u003c\/li\u003e\n\u003cli\u003eRelay Power: 140mA at +24V ModuleBus\u003c\/li\u003e\n\u003cli\u003eCable Length: 600 meters maximum field wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProtection and Safety Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan style=\"color: #2e86ab;\"\u003eIndividual channel isolation\u003c\/span\u003e for safety\u003c\/li\u003e\n\u003cli\u003eEMC protection components on all outputs\u003c\/li\u003e\n\u003cli\u003eOptical isolation barriers for noise immunity\u003c\/li\u003e\n\u003cli\u003eRelay power supply voltage monitoring\u003c\/li\u003e\n\u003cli\u003eOvervoltage Category: III according to standards\u003c\/li\u003e\n\u003cli\u003eIP20 protection against dust and contact\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEnvironmental Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temperature: 0°C to +55°C range\u003c\/li\u003e\n\u003cli\u003eStorage Temperature: -40°C to +70°C limits\u003c\/li\u003e\n\u003cli\u003eHumidity Range: 5% to 95% non-condensing\u003c\/li\u003e\n\u003cli\u003ePollution Degree: Level 2 classification\u003c\/li\u003e\n\u003cli\u003eCorrosion Protection: ISA-S71.04 G3 rating\u003c\/li\u003e\n\u003cli\u003eVibration Compliance: IEC 61131-2 standard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDiagnostics and Monitoring\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e8 individual channel status LEDs\u003c\/li\u003e\n\u003cli\u003eModule indicators: Fault, Run, Warning, OSP\u003c\/li\u003e\n\u003cli\u003eRelay supply voltage supervision\u003c\/li\u003e\n\u003cli\u003eModuleBus communication for diagnostics\u003c\/li\u003e\n\u003cli\u003eConfigurable error detection parameters\u003c\/li\u003e\n\u003cli\u003eReal-time status monitoring capability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation and Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompatible with S800 I\/O mounting units\u003c\/li\u003e\n\u003cli\u003eWorks with \u003cstrong\u003eTU811\u003c\/strong\u003e, \u003cstrong\u003eTU813\u003c\/strong\u003e, \u003cstrong\u003eTU831\u003c\/strong\u003e MTUs\u003c\/li\u003e\n\u003cli\u003eKeying code CA for proper installation\u003c\/li\u003e\n\u003cli\u003eCompact dimensions: 45mm W × 119mm H × 102mm D\u003c\/li\u003e\n\u003cli\u003eWeight: 0.23 kg for easy handling\u003c\/li\u003e\n\u003cli\u003eStandard rail mounting design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePackaging and Shipping\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes one \u003cstrong\u003eABB\u003c\/strong\u003e \u003cstrong\u003eDO821\u003c\/strong\u003e module\u003c\/li\u003e\n\u003cli\u003eAll necessary installation components\u003c\/li\u003e\n\u003cli\u003eFast worldwide shipping via FedEx, UPS, DHL\u003c\/li\u003e\n\u003cli\u003eSecure industrial packaging protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat does Normally Closed (NC) mean?\u003c\/strong\u003e\u003cbr\u003eNC contacts are closed when the relay is not energized and open when activated for fail-safe operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow is channel isolation beneficial?\u003c\/strong\u003e\u003cbr\u003eIndividual isolation prevents cross-channel interference and allows mixed voltage applications on different channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat monitoring capabilities are available?\u003c\/strong\u003e\u003cbr\u003eThe module provides relay power monitoring and status indicators with ModuleBus communication for system integration.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":51050469720196,"sku":"DO821","price":125.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/7454\/7844\/files\/DO821.jpg?v=1763390784","url":"https:\/\/www.etowonauto.com\/products\/do821-abb-relay-output-module-8-channel-230v","provider":"Etowon Auto","version":"1.0","type":"link"}