{"product_id":"bently-nevada-3500-33-04-00-149992-04-low-current-16-channel-failsafe-relay-output-module","title":"Bently Nevada 3500\/33-04-00 149992-04 Low Current 16-Channel Failsafe Relay Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBently Nevada 3500\/33-04-00 149992-04\u003c\/strong\u003e is a \u003cstrong\u003e16-channel failsafe relay output module\u003c\/strong\u003e used as a main or spare module in \u003cstrong\u003e3500 machinery protection systems\u003c\/strong\u003e. It provides 16 independently programmable relay outputs with alarm drive logic, supporting AND\/OR logic combinations of alert, danger, Not-OK statuses, and measured variables from any monitor channel. Each relay output can perform voting logic and integrates with the \u003cstrong\u003e3500 Rack Configuration Software\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThis module interfaces with \u003cstrong\u003ePLC, DCS, SIS, and TSI systems\u003c\/strong\u003e, offering both normally de-energized (ND) and normally energized (NE) operation selectable in four groups of four channels. Front-panel LEDs indicate module status, communication activity, and channel alarm states.\u003c\/p\u003e\n\u003cp\u003eIt supports low current switching applications with gold-plated contacts, suitable for standard, failsafe, or hazardous area configurations. Module compatibility includes installation to the right of the Transient Data Interface (TDI) in a \u003cstrong\u003e3500 rack\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e16 relay outputs with independent programmable logic\u003c\/li\u003e\n\u003cli\u003eAlarm drive logic using AND\/OR conditions\u003c\/li\u003e\n\u003cli\u003eSelectable normally de-energized (ND) or normally energized (NE) operation\u003c\/li\u003e\n\u003cli\u003eFront-panel LEDs for OK, TX\/RX, and channel alarm status\u003c\/li\u003e\n\u003cli\u003eEpoxy-sealed relays with arc suppressors (250 Vrms)\u003c\/li\u003e\n\u003cli\u003eRelay life up to 10,000 cycles\u003c\/li\u003e\n\u003cli\u003eLow current gold-plated contact option for 1 mA @ 1 Vdc minimum load\u003c\/li\u003e\n\u003cli\u003eCompatible with 3500 Rack Configuration Software\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial machinery monitoring and protection\u003c\/li\u003e\n\u003cli\u003eProcess automation alarm outputs\u003c\/li\u003e\n\u003cli\u003eHazardous area relay interfacing\u003c\/li\u003e\n\u003cli\u003eIntegration with PLC, DCS, SIS, TSI systems\u003c\/li\u003e\n\u003cli\u003eLow-current signal switching in control panels\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3500\/33-04-00: Complete 16-Channel Relay Module Assembly\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eSpecifies the pre-configured combination consisting of the front main module card and the rear low-current failsafe output board.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-04: Output Module Type Option\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eLow Current 16-Channel Failsafe Relay Output Module featuring gold-plated contacts (Rear I\/O Module Spare: \u003cstrong\u003e149992-04\u003c\/strong\u003e).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e-00: Hazardous Area Approval Option\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eNo hazardous area agency approvals or certifications required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpares \u0026amp; Accessories\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003ePart Number \u003cstrong\u003e149992-04\u003c\/strong\u003e: Spare 16-Channel Low Current Failsafe Relay Output Module.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eCategory\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\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003eMain module: 0.7 kg (1.6 lb), I\/O module: 0.4 kg (1.0 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003eMain module: 241 x 24.4 x 242 mm (9.50 x 0.96 x 9.52 in), I\/O module: 241 x 24.4 x 99.1 mm (9.50 x 0.96 x 3.90 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRack Space\u003c\/td\u003e\n\u003ctd\u003eMain: 1 full-height front slot, I\/O: 1 full-height rear slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e5.8 watts typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Type\u003c\/td\u003e\n\u003ctd\u003eSPDT (Single-pole Double-throw)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Life\u003c\/td\u003e\n\u003ctd\u003e10,000 cycles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Arc Suppressor\u003c\/td\u003e\n\u003ctd\u003e250 Vrms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Switched Current\u003c\/td\u003e\n\u003ctd\u003eStandard: 100 mA @ 5 Vdc, Low Current: 1 mA @ 1 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Switched Current\u003c\/td\u003e\n\u003ctd\u003eDC: 5 A, AC: 5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Switched Power\u003c\/td\u003e\n\u003ctd\u003eDC: 70 W @ 24 Vdc, AC: 1200 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Switched Voltage\u003c\/td\u003e\n\u003ctd\u003eDC: 125 Vdc, AC: 250 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnvironmental\u003c\/td\u003e\n\u003ctd\u003eEpoxy-sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicators\u003c\/td\u003e\n\u003ctd\u003eOK, TX\/RX, CH Alarm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eConnections\/Interfaces\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eConnector Pin\u003c\/th\u003e\n\u003cth\u003eFunction\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/D-Agent_1-_work-77-s-Upload-162096J1.pdf?v=1780026391\"\u003eRefer to 3500 rack manual\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eRelay outputs, power, communication connections\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003ch4\u003eGrounding and Shielding\u003c\/h4\u003e\n\u003cp\u003eEnsure the rack frame is properly tied to the plant instrumentation ground before inserting modules. Field wiring shields should be terminated at the designated shield terminals on the I\/O module to minimize electromagnetic interference and ensure signal integrity.\u003c\/p\u003e\n\u003ch4\u003eHazardous Area Precautions\u003c\/h4\u003e\n\u003cp\u003eDo not disconnect field wiring or module connections while the circuit is live unless the location is verified to be non-hazardous. Live handling in explosive atmospheres can result in arc-induced ignition risks.\u003c\/p\u003e\n\u003ch4\u003eModule Placement\u003c\/h4\u003e\n\u003cp\u003eAlign the main module with the chosen front slot to the right of the TDI module. Slide it firmly into the backplane connectors and tighten the panel screws. Install the matching I\/O module in the corresponding slot directly on the rear of the rack assembly.\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 04 option signify in this module part number?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e The 04 code specifies that this is the Low Current 16-Channel Failsafe variant equipped with gold-plated contacts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the minimum current rating for the gold-plated contact version?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe minimum switched current rating is 1 mA @ 1 Vdc.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I mix the configuration for Normally Energized and Normally De-energized modes?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the sixteen channels are split into four distinct groups of four channels, and each group is independently switch-selectable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the purpose of the TX\/RX LED on the front panel?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe TX\/RX LED flashes to indicate active transmission and reception of communication data between this module and other rack modules.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this hardware package contain built-in spark protection for the contacts?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, an internal 250 Vrms epoxy-sealed relay arc suppressor is standard equipment on the hardware channels.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan this unit process individual variables from multiple monitor modules at once?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the Alarm Drive Logic can combine Alert, Danger, or Not-OK inputs from any monitor channel or combination of monitor channels within the rack.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat software tool is required to configure the voting logic pathways?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe system logic is engineered and uploaded using the 3500 Rack Configuration Software.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat happens to the relay operation if the module encounters an internal failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Failsafe design ensures that when a major failure or loss of control occurs, the relays drop to their safe de-energized or default state depending on wiring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it safe to exceed 5 mA when using an AC supply voltage up to 120Vac?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, currents exceeding 5 mA on these low-current gold relays will degrade or permanently damage the contact plating.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow many slots does the complete main and I\/O assembly take up?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt occupies one full-height slot on the front of the rack and one corresponding full-height slot on the rear panel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I plug this module into the slot immediately adjacent to the power supply?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt must be placed in any available slot situated to the right of the Transient Data Interface module.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does a solid light on the OK LED indicate?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA solid light confirms that the hardware is powered up, has passed initial self-tests, and is operating properly.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666848837995,"sku":"3500\/33-04-00 149992-04","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-3500-33-04-00-149992-04-relay-i-o-module-fkulr4tcehu_c36c9898-9ec7-4d81-a6b1-b3299e531e38.jpg?v=1765448997","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-3500-33-04-00-149992-04-low-current-16-channel-failsafe-relay-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}