{"product_id":"bently-nevada-125720-02-3500-32m-4-channel-relay-output-module","title":"Bently Nevada 125720-02 3500\/32M 4-Channel Relay Output Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e125720-02\u003c\/strong\u003e is the dedicated full-height rear I\/O 4-Channel Relay Output Module required for hazardous area (Class I, Division 2 \/ Zone 2) and SIL functional safety applications in the Bently Nevada 3500 Machinery Protection System. Installed in the rear slot directly behind its corresponding \u003cstrong\u003e149986-02\u003c\/strong\u003e front relay control module, the \u003cstrong\u003e125720-02\u003c\/strong\u003e provides four single-pole, double-throw (SPDT) relay outputs for machine protection and shutdown logic. Each channel features switch-selectable operation and integrated arc suppression, with voltage and spacing compliance specifically rated for hazardous environments.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSpecialized rear I\/O configuration for hazardous area (Class I, Div 2 \/ Zone 2) and SIL functional safety compliance\u003c\/li\u003e\n\u003cli\u003eDirect interface with the \u003cstrong\u003e149986-02\u003c\/strong\u003e front 4-channel relay control module\u003c\/li\u003e\n\u003cli\u003eFour single-pole, double-throw (SPDT) relay channel connections\u003c\/li\u003e\n\u003cli\u003eEpoxy-sealed standard relays with internal 250 Vrms arc suppressors\u003c\/li\u003e\n\u003cli\u003eBuilt-in DIP switch selection for Normally De-energized (NDE) or Normally Energized (NE) operation\u003c\/li\u003e\n\u003cli\u003eRemovable terminal block connections for simplified field wiring\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMachinery protection and emergency shutdown systems (ESD)\u003c\/li\u003e\n\u003cli\u003eRotating equipment monitoring in Class I, Division 2 \/ Zone 2 hazardous areas\u003c\/li\u003e\n\u003cli\u003eFunctional safety (SIL) rated turbine, compressor, and pump protection loops\u003c\/li\u003e\n\u003cli\u003eAutomated alarm and trip relay outputs in 3500 system racks\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\u003eComponent\u003c\/th\u003e\n\u003cth\u003ePart Number\u003c\/th\u003e\n\u003cth\u003eSelection \/ Function\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHazardous\/SIL Rear I\/O Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e125720-02\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSpare 4-Channel Relay Output Module (Hazardous Area \/ SIL Systems)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMatching Front Control Module\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e149986-02\u003c\/td\u003e\n\u003ctd\u003eSpare 4-Channel Relay Control Module (Front Slot)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eComplete System Ordering Code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3500\/32-01-01 \/ 3500\/32-01-02\u003c\/td\u003e\n\u003ctd\u003e3500\/32M Relay Module with 4-Channel Output \u0026amp; Hazardous Approval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRequired Field Connector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e00580436\u003c\/td\u003e\n\u003ctd\u003e6-position green terminal header (or 166M2390 push-in spring type)\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\u003eParameter\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\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\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4-Channel Relay Output Module (Rear I\/O)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5.8 Watts typical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRelay Contact Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSingle-pole, double-throw (SPDT)\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, standard installed\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 240 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Switched Voltage (Hazardous\/SIL)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e30 Vdc \/ 30 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMax Switched Current (Hazardous\/SIL)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2 A @ 0V to 30 Vdc \/ 2 A @ 30 Vac\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Switched Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 mA @ 12 Vdc\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\u003eRack Space Requirement\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1 full-height rear slot\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (H x W x D)\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\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4 kg (1.0 lb.)\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\u003eTerminal 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\u003eNC\u003c\/td\u003e\n\u003ctd\u003eNormally Closed relay contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eARM\u003c\/td\u003e\n\u003ctd\u003eRelay Armature \/ Common contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNO\u003c\/td\u003e\n\u003ctd\u003eNormally Open relay contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelay Mode Switch\u003c\/td\u003e\n\u003ctd\u003eSelection switch for Normally De-energized (NDE) or Normally Energized (NE)\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\u003eInsert the \u003cstrong\u003e125720-02\u003c\/strong\u003e into the rear full-height slot directly aligned with the \u003cstrong\u003e149986-02\u003c\/strong\u003e front control module.\u003c\/li\u003e\n\u003cli\u003eSet the relay mode selection DIP switches (NE\/NDE) on the rear I\/O card prior to wiring.\u003c\/li\u003e\n\u003cli\u003eConnect field relay conductors using green 6-position terminal headers.\u003c\/li\u003e\n\u003cli\u003eObserve strict maximum operating voltage limits of 30 Vdc or 30 Vac to maintain hazardous area and SIL certifications.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompliance and Certifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ecNRTLus\u003c\/strong\u003e: Class I, Zone 2: AEx\/Ex nA nC ic IIC T4 Gc; Class I, Zone 2: AEx\/Ex ec nC ic IIC T4 Gc; Class I, Division 2, Groups A, B, C, and D; T4 @ Ta = -20 degC to +65 degC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eATEX\/IECEx\u003c\/strong\u003e: Ex II 3 G; Ex nA nC ic IIC T4 Gc; Ex ec nC ic IIC T4 Gc; T4 @ Ta = -20 degC to +65 degC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEMC \/ Safety\u003c\/strong\u003e: Directive 2014\/30\/EU (EN 61000-6-2, EN 61000-6-4), Directive 2014\/35\/EU (EN 61010-1), RoHS 2011\/65\/EU\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52666858930539,"sku":"125720-02","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/bently-nevada-125720-02-relay-output-module-dbpympnmaht_f6ece366-393c-4bfa-ad96-333a782dd976.jpg?v=1765449249","url":"https:\/\/www.plcprotech.com\/cs\/products\/bently-nevada-125720-02-3500-32m-4-channel-relay-output-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}