{"product_id":"amn21-yokogawa-relay-i-o-nests","title":"AMN21 Yokogawa Relay I\/O Nests","description":"\u003cp\u003eConfigured for relay signal switching in control networks, the \u003cstrong\u003eYokogawa AMN21\u003c\/strong\u003e (\u003cstrong\u003eAMN21\u003c\/strong\u003e Relay Nest) provides direct physical\/electrical execution of modular backplane routing for relay I\/O modules across CENTUM CS 1000, CS 3000, and CENTUM VP platforms.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAMN21\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eYokogawa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eJapan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.5 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eStandard Yokogawa relay nest dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-10 to 60 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to 70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e24 VDC, 110 VAC, or 220 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Capacity\u003c\/td\u003e\n\u003ctd\u003e2 A at 250 VAC \/ 30 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e10% to 90% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eProcess Instrumentation and Relay Logic\u003c\/h3\u003e\n\u003cp\u003eThe AMN21 relay nest architecture provides a robust interface for high-voltage and high-current discrete signal switching. By integrating individual relay slots within a common backplane, the nest facilitates the galvanic isolation of field-side circuits from the low-voltage logic control bus. This design minimizes the risk of back-feed interference and ensures that inductive switching transients are suppressed, preserving the operational longevity of both the field instrumentation and the controller interface modules.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: Does the AMN21 relay nest support mixed-voltage load configurations?\u003c\/p\u003e\n\u003cp\u003eA: The nest allows for multiple relay modules to be installed; however, each channel must be wired in accordance with the specific voltage rating of the module and the local safety insulation standards for the cabinet.\u003c\/p\u003e\n\u003cp\u003eQ: Is the AMN21 nest suitable for high-frequency switching operations?\u003c\/p\u003e\n\u003cp\u003eA: While designed for industrial process control, the mechanical lifespan of the relays is limited by their duty cycle. For high-frequency switching, ensure that the application does not exceed the mechanical cycle limits specified for the installed relay modules.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003eInstall the AMN21 nest in a properly ventilated cabinet to maintain the specified operating temperature range.\u003c\/li\u003e\n\u003cli\u003eEnsure that high-voltage AC and low-voltage DC wiring paths are strictly segregated within the cabinet to prevent noise coupling.\u003c\/li\u003e\n\u003cli\u003eVerify the tightness of terminal connections to prevent contact resistance heating, especially when switching near the 2 A limit.\u003c\/li\u003e\n\u003cli\u003eConfirm that all relays are firmly seated in their respective sockets to prevent intermittent signal chatter.\u003c\/li\u003e\n\u003cli\u003ePerform a load test on each relay contact to ensure proper continuity and insulation resistance after initial commissioning.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Yokogawa","offers":[{"title":"Default Title","offer_id":49152836272380,"sku":"AMN21","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/AMM32T_S21.jpg?v=1780277241","url":"https:\/\/www.electronicplc.com\/products\/amn21-yokogawa-relay-i-o-nests","provider":"Electronic PLC","version":"1.0","type":"link"}