{"product_id":"3500-34-tmr-relay-output-module-bently-nevada","title":"3500\/34 TMR Relay Output Module Bently Nevada","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/34 (125712-01)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis a high-reliability\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eTriple Modular Redundant (TMR)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003erelay output module designed for the 3500 Machinery Protection System developed by Bently Nevada. This module provides the critical interface between the monitoring rack and emergency shutdown circuits in safety-critical machinery protection applications.\u003c\/p\u003e\n\u003cp\u003eEngineered for mission-critical safety control, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/34\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003euses\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2-out-of-3 voting logic\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto ensure that a single relay or channel failure does not cause false machine trips or prevent legitimate shutdown commands. This makes it widely used in high-value rotating equipment protection systems where reliability and uptime are essential.\u003c\/p\u003e\n\u003cp\u003eThe module is organized into independent relay voting groups that can be configured using 3500 Rack Configuration Software to respond to specific alarm and danger states across the monitoring rack. This TMR safety architecture is widely adopted in oil \u0026amp; gas, power generation, and petrochemical facilities where Safety Integrity is critical.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eDetailed Technical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003cth\u003eItem\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\u003eModel\u003c\/td\u003e\n\u003ctd\u003e3500\/34\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrdering Number\u003c\/td\u003e\n\u003ctd\u003e125712-01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Logic\u003c\/td\u003e\n\u003ctd\u003e2-out-of-3 TMR voting\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Type\u003c\/td\u003e\n\u003ctd\u003eForm C (SPDT) Electromechanical Relays\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e5A @ 24 Vdc \/ 5A @ 240 Vac (resistive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 10 ms (logic dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e2.6 cm × 25.3 cm × 12.0 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.35 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr\u003e\n\u003ch3\u003eApplication Scenarios\u003c\/h3\u003e\n\u003cp\u003eThe\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/34 (125712-01)\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis commonly used in:\u003c\/p\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003eTurbine emergency shutdown systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eFuel valve and stop valve actuation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMotor starter interlock protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eCompressor and pump safety shutdown circuits\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIt is particularly suited for plants where false trips must be avoided while still maintaining high safety integrity for machinery protection.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eTechnical FAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHow does TMR voting protect against false trips?\u003c\/strong\u003e\u003cbr\u003eThe module requires\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eat least two out of three internal relay channels\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eto detect a danger condition before changing output relay states. If only one channel detects a fault, the system will generate a diagnostic alarm but will not trigger a shutdown trip.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this module compatible with the 3500\/32 Relay Module?\u003c\/strong\u003e\u003cbr\u003eBoth modules can coexist in the same rack. However, the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/34\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis specifically designed for TMR voting applications, while the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e3500\/32\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis typically used for simplex relay output protection functions.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":48746751983868,"sku":"3500\/34","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0787\/9983\/1292\/files\/3500341.jpg?v=1772435088","url":"https:\/\/www.electronicplc.com\/products\/3500-34-tmr-relay-output-module-bently-nevada","provider":"Electronic PLC","version":"1.0","type":"link"}