{"product_id":"arm55d-00-yokogawa-mechanical-relay-board","title":"ARM55D-00 Yokogawa Mechanical Relay Board","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Yokogawa ARM55D-00 functions as a critical interface component within the CENTUM VP control architecture. It provides 32-point mechanical dry contact outputs (\"a\" contact \/ Normally Open) for driving field actuators and signal indicators. Designed as a 19-inch rack-mountable board, it supports both single and dual-redundant configurations, effectively bridging low-level controller logic with high-power field devices. This unit is supplied as 100% brand new, original factory equipment.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003ePart Number Breakdown\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eARM55D\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Base model for 32-channel dry contact output relay board\u003cbr\u003e\u003cstrong\u003e-0\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Standard functional specification\u003cbr\u003e\u003cstrong\u003e0\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e– Mechanical design for 19-inch rack mounting\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\u003eOutput Points\u003c\/td\u003e\n\u003ctd\u003e32-point dry contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eField Connections\u003c\/td\u003e\n\u003ctd\u003eM4 screw terminals\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003e≥ 10 MΩ at 500 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003e19-inch rack mountable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e18.4 cm × 48.2 cm × 13.2 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e2.2 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRedundancy Support\u003c\/td\u003e\n\u003ctd\u003eCompatible with dual-redundant I\/O configurations\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eEngineering Advantages\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eSimplified Field Wiring\u003c\/strong\u003e\u003cbr\u003eM4 screw terminals provide secure and vibration-resistant connections, supporting heavy-gauge wiring without requiring specialized crimping tools.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRedundancy Integration\u003c\/strong\u003e\u003cbr\u003eSupports dual-redundant cable inputs from I\/O modules, ensuring uninterrupted operation in the event of a single path failure.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh Galvanic Isolation\u003c\/strong\u003e\u003cbr\u003eMechanical relay design isolates control electronics from field-side noise and voltage surges, protecting critical CPU and control modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRack-Efficient Design\u003c\/strong\u003e\u003cbr\u003eThe standardized 19-inch form factor allows direct installation into industrial racks, optimizing cabinet space and simplifying system expansion.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eFAQs\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this board support \"b\" contact (Normally Closed) logic?\u003c\/strong\u003e\u003cbr\u003eNo, the ARM55D-00 supports only \"a\" contact (Normally Open) outputs. Verify field device requirements before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this unit compatible with third-party I\/O modules?\u003c\/strong\u003e\u003cbr\u003eIt is specifically designed for Yokogawa CENTUM VP and ProSafe-RS systems. Integration with third-party systems may require custom interface solutions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat maintenance does the relay board require?\u003c\/strong\u003e\u003cbr\u003eMechanical relays have a limited switching lifecycle. Periodic continuity testing during scheduled shutdowns is recommended to detect contact wear early.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mount this board vertically?\u003c\/strong\u003e\u003cbr\u003eNo, it is designed for horizontal installation in standard 19-inch racks to ensure proper heat dissipation and operational reliability.\u003c\/p\u003e","brand":"YOKOGAWA","offers":[{"title":"Default Title","offer_id":52012395561272,"sku":"ARM55D-00","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0893\/1616\/3896\/files\/ARM55D-000.jpg?v=1772762249","url":"https:\/\/www.automodulexpert.com\/products\/arm55d-00-yokogawa-mechanical-relay-board","provider":"AutoModuleXpert Ltd.","version":"1.0","type":"link"}