{"product_id":"125720-02-bently-nevada-spare-4-channel-relay-output-module-1","title":"Bently Nevada 125720-01 Relay I\/O Module","description":"\u003cp\u003eThe Bently Nevada 125720-01 is a 4-channel relay I\/O module designed for integration within the 3500\/32M machinery protection system. This full-height module serves as the interface between the rack's internal control signals and external electrical loads, providing four independent, programmable relay outputs to facilitate critical machine trip and alarm functions.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour independent, programmable relay outputs.\u003c\/li\u003e\n\u003cli\u003eIntegrated Alarm Drive Logic supporting AND\/OR configurations.\u003c\/li\u003e\n\u003cli\u003eCompatible with any slot to the right of the Rack Interface Module in a 3500 series rack.\u003c\/li\u003e\n\u003cli\u003eUtilizes high-reliability SPDT (Single-Pole, Double-Throw) electromechanical relays.\u003c\/li\u003e\n\u003cli\u003eDesigned for seamless integration with 3500 Rack Configuration Software.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil \u0026amp; Gas:\u003c\/strong\u003e Protection for large centrifugal compressors, pumps, and blowers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Generation:\u003c\/strong\u003e Emergency trip logic for steam and gas turbines during overspeed or high vibration events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePetrochemical:\u003c\/strong\u003e Critical process machinery management and shutdown sequencing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Management:\u003c\/strong\u003e Monitoring and protection for large-scale pumping infrastructure.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003ctable border=\"1\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003e125720-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eRelay I\/O Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Supply\u003c\/td\u003e\n\u003ctd\u003e+5 V DC, +\/- 15 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5-15 W (typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e2-5 A at 30 V DC \/ 250 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003e1500 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd\u003e-20 degC to +65 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHumidity\u003c\/td\u003e\n\u003ctd\u003e5-95% RH (non-condensing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSlot Placement:\u003c\/strong\u003e The I\/O module must be installed in the rear of the 3500 rack, aligned directly behind the corresponding 3500\/32M main module.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsertion:\u003c\/strong\u003e Ensure the module is properly aligned with the chassis guide rails before sliding it into the rack.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrounding:\u003c\/strong\u003e Tighten the two front-panel thumb screws securely to ensure a proper chassis ground connection and electrical integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandling:\u003c\/strong\u003e Always power down the rack before inserting or removing modules to prevent electrical damage or unexpected system behavior.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the primary function of the 125720-01 module?\u003c\/h3\u003e\u003cp\u003eThe 125720-01 is a relay I\/O module for the 3500\/32M system, used to output alarm and danger signals from the rack to external equipment using programmable logic.\u003c\/p\u003e\u003ch3\u003eCan I program the relay logic myself?\u003c\/h3\u003e\u003cp\u003eYes, the module is configured using the 3500 Rack Configuration Software, which allows you to define specific AND\/OR voting logic based on input from any monitor channel in the rack.\u003c\/p\u003e\u003ch3\u003eIs this module compatible with all 3500 racks?\u003c\/h3\u003e\u003cp\u003eIt is designed for the 3500 series and can be installed in any slot located to the right of the Rack Interface Module or Transient Data Interface module.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":43996082110554,"sku":"125720-01","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/wm_1_be0e9e5a-e7fe-417b-b6ba-caa1231b7035.jpg?v=1788307032","url":"https:\/\/www.spareoil.com\/products\/125720-02-bently-nevada-spare-4-channel-relay-output-module-1","provider":"SpareOil Automation","version":"1.0","type":"link"}