{"product_id":"125720-02-bently-nevada-spare-4-channel-relay-output-module-1","title":"Bently Nevada 125720-01 4-Channel Relay I\/O Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\u003cp\u003eThe Bently Nevada 125720-01 is a 4-channel relay I\/O module designed for the 3500\/32M monitoring system. As a critical component of the 3500 series machinery protection platform, this module provides the necessary interface between the rack's internal control signals and external electrical loads. It features four independently programmable relay outputs, allowing for flexible configuration of voting logic to suit specific industrial protection requirements.\u003c\/p\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFour independent, programmable relay outputs.\u003c\/li\u003e\n\u003cli\u003eUtilizes Alarm Drive Logic (AND\/OR) to trigger based on alert or danger status from any monitor channel in the rack.\u003c\/li\u003e\n\u003cli\u003eFull-height module design for standard 3500 rack integration.\u003c\/li\u003e\n\u003cli\u003eSupports SPDT (Single-Pole, Double-Throw) electromechanical relay operation.\u003c\/li\u003e\n\u003cli\u003eCompatible with 3500 Rack Configuration Software for custom logic implementation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOil \u0026amp; Gas Refineries: Protection and monitoring for centrifugal compressors and pumps.\u003c\/li\u003e\n\u003cli\u003ePower Generation: Emergency trip logic for steam and gas turbine protection systems.\u003c\/li\u003e\n\u003cli\u003ePetrochemical Plants: Managing trip sequences for critical rotating machinery.\u003c\/li\u003e\n\u003cli\u003eWater \u0026amp; Wastewater: Protection for large-scale pumping and treatment 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\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 @ 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\u003eThe 125720-01 I\/O module must be installed in the rear of the 3500 rack, directly behind its corresponding 3500\/32M main module.\u003c\/li\u003e\n\u003cli\u003eEnsure the rack is powered down before inserting or removing any module to prevent electrical damage.\u003c\/li\u003e\n\u003cli\u003eAlign the module carefully with the rack guide rails and slide it in until the backplane connectors are fully engaged.\u003c\/li\u003e\n\u003cli\u003eTighten the two integrated thumb screws to ensure a secure mechanical fit and proper electrical grounding.\u003c\/li\u003e\n\u003cli\u003eHandle with standard ESD (Electrostatic Discharge) precautions to protect sensitive internal circuitry.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is the 125720-01 module?\u003c\/h3\u003e\u003cp\u003eThe 125720-01 is a 4-channel relay I\/O module used within the Bently Nevada 3500\/32M monitoring system to provide relay-based alarm outputs.\u003c\/p\u003e\u003ch3\u003eCan the relay outputs be configured independently?\u003c\/h3\u003e\u003cp\u003eYes, each of the four relay outputs can be independently programmed using AND\/OR logic to respond to specific alert or danger conditions from any monitor channel in the rack.\u003c\/p\u003e\u003ch3\u003eWhere is this module installed in the 3500 rack?\u003c\/h3\u003e\u003cp\u003eIt is installed in the rear of the 3500 rack, specifically in the slot directly behind the front-facing 3500\/32M monitor module.\u003c\/p\u003e\u003ch3\u003eWhat is the switching capacity of the relays?\u003c\/h3\u003e\u003cp\u003eThe relays are rated for 2-5 A at 30 V DC or 250 V AC, with a maximum switching capacity of 120 W DC or 600 VA AC.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":50743200153852,"sku":"125720-01","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/wm_1_261d44ad-639d-4954-b47d-497cc7709197.jpg?v=1785463760","url":"https:\/\/www.electronicplc.com\/ar\/products\/125720-02-bently-nevada-spare-4-channel-relay-output-module-1","provider":"Electronic PLC","version":"1.0","type":"link"}