{"product_id":"bently-nevada-125712-01-spare-4-channel-relay-module","title":"Bently Nevada 125712-01 Spare 4-Channel Relay Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e125712-01\u003c\/strong\u003e is a full-height spare module designed to provide four independent programmable relay outputs within a machinery protection system. It functions as the core component of the \u003cstrong\u003e3500\/32\u003c\/strong\u003e system, allowing user-programmed voting logic to drive specific automated alarms based on machine conditions. Each output integrates \u003cstrong\u003eAlarm Drive Logic\u003c\/strong\u003e, enabling complex configurations of AND and OR gates utilizing alert and danger inputs aggregated from any combination of monitor channels within the same rack. The module interfaces seamlessly with matching backplane termination boards to trigger safety systems, emergency shutdown mechanisms, or external indicators across various high-criticality rotating assets.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFour independent, highly configurable relay channels capable of processing individual asset voting logic.\u003c\/li\u003e\n\u003cli\u003eAdvanced \u003cstrong\u003eAlarm Drive Logic\u003c\/strong\u003e supporting combinational AND\/OR structures to optimize protective trip sequences.\u003c\/li\u003e\n\u003cli\u003eFlexible slot placement, allowing installation in any available slot to the right of the Rack Interface Module.\u003c\/li\u003e\n\u003cli\u003eComprehensive front-panel diagnostic indicators displaying operation health (OK), active rack communications (TX\/RX), and independent channel alarm states.\u003c\/li\u003e\n\u003cli\u003eOnboard arc suppressors equipped as standard to safely mitigate electrical surges across output loads.\u003c\/li\u003e\n\u003cli\u003eProgrammed easily via the specialized software utility to match specialized system criteria.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-speed turbomachinery and compressor protection loops.\u003c\/li\u003e\n\u003cli\u003eAutomated safety logic gating for power generation equipment and industrial pumps.\u003c\/li\u003e\n\u003cli\u003eInterfacing critical condition indicators with Distributed Control Systems (\u003cstrong\u003eDCS\u003c\/strong\u003e) and Emergency Shutdown Systems (\u003cstrong\u003eESD\u003c\/strong\u003e).\u003c\/li\u003e\n\u003cli\u003eMulti-channel vibration monitoring frameworks where logical voting criteria prevent false process trips.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003ePart Number \/ Option Code\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eDescription\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e3500\/32-AXX-BXX\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Channel Relay Module complete assembly configuration.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eA: 01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Channel Relay I\/O Module.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: 00\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option: None.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eB: 01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAgency Approval Option: CSA\/NRTL\/C.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e125712-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpare Parts:\u003c\/strong\u003e Spare 4-Channel Relay Module.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e125720-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpare Parts:\u003c\/strong\u003e Spare 4-Channel Relay I\/O Module.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e132319-01\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpare Parts:\u003c\/strong\u003e Firmware IC.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003e00580436\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpare Parts:\u003c\/strong\u003e Connector Header, Internal Termination, 6-position, Green.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter Category\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification Details\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBently Nevada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500\/32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSpare Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e125712-01\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6 Watts typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Configuration\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwo single-pole, double-throw (SPDT) relays connected in a double-pole, double-throw (DPDT) configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Sealing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEpoxy-sealed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eArc Suppressor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 Vrms, installed as standard\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100,000 cycles @ 5 A, 24 Vdc or 120 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eChannel Operation Mode\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSwitch-selectable for Normally De-energized or Normally Energized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eResistive Switched Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMax dc: 120 W | Max ac: 600 VA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Switched Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100mA @ 5 Vdc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaximum Switched Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaximum Switched Voltage\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003edc: 30 Vdc | ac: 250 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-30 degC to +65 degC (-22 degF to +150 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStorage Temperature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e-40 degC to +85 degC (-40 degF to +185 degF)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHumidity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e95%, non-condensing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Module Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241 mm x 24.4 mm x 242 mm (9.50 in x 0.96 in x 9.52 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e241 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMain Module Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.7 kg (1.6 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eI\/O Module Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4 kg (1.0 lbs.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRack Slot Requirements\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 full-height front slot for Main Module, 1 full-height rear slot for I\/O Modules\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\u003cp\u003eThe interface configurations provide dedicated diagnostic readouts and contact terminals for reliable loop signaling:\u003c\/p\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eInterface Element\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eFunction \/ Assignment\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOK LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront panel indicator; remains illuminated when the internal circuit functions properly.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTX\/RX LED\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFront panel indicator; flashes continuously to show normal rack backplane communication activity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCH ALARM LEDs (1 - 4)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eIndependent indicators; illuminate directly when the corresponding relay channel triggers an alarm state.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Terminals\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRear board wire connection blocks used to tie contact points to plant automation systems.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHardware Switches\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOnboard control mechanisms used to define the base operational state of output contacts.\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\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModule Positioning:\u003c\/strong\u003e Slide the component into a single full-height front slot of the master enclosure, placing it to the right of the primary interface card.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eESD Mitigation:\u003c\/strong\u003e Prior to touching or handling the circuit boards, secure an approved anti-static grounding wrist strap to reduce risk from unintended electrostatic discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLogic Mapping:\u003c\/strong\u003e Open the custom utility framework to establish targeted trip maps before testing the system output channels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eState Selection:\u003c\/strong\u003e Manually position the physical configuration switches to select Normally Energized or Normally De-energized states before commissioning the output relay loops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTMR Exclusion:\u003c\/strong\u003e Note that standard four-channel options are not suited for Triple Modular Redundant loops; apply the correct dedicated voting assembly model for TMR protection architecture.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC Emissions:\u003c\/strong\u003e EN50081-2, EN 55011 Class A (Conducted and Radiated Emissions).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC Immunity:\u003c\/strong\u003e EN50082-2, EN 61000-4-2 (ESD Criteria B), ENV 50140 (Radiated Susceptibility Criteria A), ENV 50141 (Conducted Susceptibility Criteria A), EN 61000-4-4 (EFT Criteria B), EN 61000-4-5 (Surge Criteria B), EN 61000-4-8 (Magnetic Field Criteria A), EN 61000-4-11 (Power Supply Dip Criteria B), ENV 50204 (Radio Telephone Criteria B).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Voltage Directives:\u003c\/strong\u003e EN 61010-1 Safety Requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHazardous Area Standards:\u003c\/strong\u003e CSA\/NRTL\/C Class I, Division 2, Groups A through D.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the distinct difference between this spare and a standard 3500\/32 ordering code?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe 3500\/32 describes the general functional family or multi-component system configuration while the distinct part number defines the individual hot-swappable front card provided as a component replacement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan these relay channels be manually assigned to alarms on any vibration monitor card inside the same system frame?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eYes, the internally stored processing algorithm pulls operational signals and alarm states from any combination of standard slots across the active rack configuration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I adjust a relay channel between Normally Energized and Normally De-energized behaviors?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe target configuration requires the adjustment of individual physical hardware switches located on the assembly alongside parameter adjustments inside the configuration utility.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes a standard 125712-01 component ship with its matching rear input\/output module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eNo, this part number specifically designates the front-facing main processor card alone; if the rear termination board is needed, it must be ordered under its individual product number.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666847658347,"sku":"3500\/32 125712-01","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-3500-32-125712-01-4-channel-relay-module-apgs2pgvaqc_1bd7426c-4cca-42dc-afd3-fce09079cbbe.jpg?v=1765448967","url":"https:\/\/www.plcprotech.com\/products\/bently-nevada-125712-01-spare-4-channel-relay-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}