{"product_id":"235820-00171490-abb-relay-module","title":"235820-00171490 ABB Relay Module","description":"\u003ch3 class=\"\"\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe ABB 235820-00171490 is a specialized high-performance relay interface module designed to address the challenges of signal integrity and fail-safe operations in redundant Distributed Control Systems (DCS).\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIt serves as a critical terminal unit that bridges the gap between low-level logic controllers and high-power field devices.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBy providing eight channels of complete galvanic isolation,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003ethis module prevents cross-channel interference and protects the central processing unit from electrical surges or field faults.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIts primary role is to ensure fault-tolerant connectivity in mission-critical environments where even a millisecond of signal loss could compromise plant safety or process continuity.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 class=\"\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eFeature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification Details\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\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eABB\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\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\u003e235820-00171490\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eComponent Category\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRedundant Terminal Relay Module\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eChannel Count\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e8 Individually Isolated Channels\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e50 V DC\/AC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCurrent Load\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e10 A per Channel (Max)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eResponse Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e\u0026lt; 2 Milliseconds\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e-40°C to +85°C\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\u003e1.22 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePhysical Dimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24 x 19 x 5.3 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturing Origin\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eSweden\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 class=\"\"\u003eModel Code Breakdown\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eThe identifier 235820-00171490 utilizes a structured numbering system to define its hardware architecture and specialized features:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003e235820\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis primary numeric prefix identifies the base hardware family,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003especifically categorized under ABB’s redundant terminal units used in heavy-duty DCS architectures.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003e0017\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThis sub-code relates to the electrical configuration of the internal relay matrix,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003especifying the high-current handling capabilities (up to 10A) and the high dielectric strength required for industrial isolation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003e1490\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eThe final suffix indicates the specific terminal type and mounting variant.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eIn this instance,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eit refers to the specialized rectangular ring terminal interface designed for secure,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003evibration-resistant field wiring connections.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eInstallation Guidelines and Wiring\u003c\/h3\u003e\n\u003cp\u003e\u003cspan class=\"\"\u003eTo maintain the high reliability and redundancy standards of the 235820-00171490,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003efollow these industrial installation protocols:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eEnvironmental Placement\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eMount the module in a well-ventilated enclosure.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eWhile it supports temperatures up to +85°C,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eproviding adequate space between adjacent modules will extend the lifespan of the relay contacts.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eRedundancy Setup\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eFor fail-safe operation,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eensure the module is connected to dual-bus power architectures.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eUse the integrated ring terminals to create a mechanically secure bond that prevents intermittent signals in high-vibration zones.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eWiring Conductors\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eGiven the 10A current capacity,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003euse appropriately gauged copper wire (minimum 14 AWG) to prevent overheating.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eEnsure all terminal screws are torqued to the manufacturer’s specification to maintain low contact resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eIsolation Management\u003c\/strong\u003e\u003cspan class=\"\"\u003e:\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eKeep high-voltage field wiring physically separated from low-voltage logic cables within the cabinet to utilize the module’s 8-channel isolation effectively.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 class=\"\"\u003eFAQ: Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eIs this relay module suitable for hazardous area deployment?\u003c\/strong\u003e\u003cspan class=\"\"\u003eThe 235820-00171490 is designed for rugged industrial use with high isolation; however,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003efor use in explosive atmospheres (ATEX\/IECEx zones),\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eit must be installed within a suitably rated explosion-proof enclosure.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eCan I mix different voltages across the eight channels?\u003c\/strong\u003e\u003cspan class=\"\"\u003eYes.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eBecause each of the eight channels is individually isolated,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eyou can switch different signal types across different channels (up to the 50V limit) without the risk of electrical leakage between circuits.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong class=\"\"\u003eDoes this module require external cooling at its maximum temperature limit?\u003c\/strong\u003e\u003cspan class=\"\"\u003eThe module is rated for passive cooling up to +85°C.\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eHowever,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eif all eight channels are continuously carrying the maximum 10A load,\u003c\/span\u003e\u003cspan class=\"\"\u003e\u003cspan\u003e \u003c\/span\u003eactive airflow is recommended to prevent localized heat buildup within the terminal unit.\u003c\/span\u003e\u003c\/p\u003e","brand":"ABB","offers":[{"title":"Default Title","offer_id":45518992277677,"sku":"235820-00171490","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/abb-235820-00171490-relay-module-5oq2puf24uk.jpg?v=1766984272","url":"https:\/\/www.maxwellplc.com\/products\/235820-00171490-abb-relay-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}