{"product_id":"bently-nevada-3500-32-01-cn-3500-series-4-channel-relay-module","title":"Bently Nevada 3500\/32-01-CN 3500 Series 4-Channel Relay Module","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eTo drive external machinery control loops and execute critical protective safety shutdowns, the \u003cstrong\u003eBently Nevada 3500\/32-01-CN\u003c\/strong\u003e integrates four fully programmable relay outputs into the 3500 series machinery protection rack. This full-height module accepts input logic from other monitors in the rack to control independent, single-pole double-throw (SPDT) relays. Highly configured for critical safety interlocking, the module provides reliable contact state changes based on alarm status and user-defined voting logic designed in the 3500 Rack Configuration Software.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eKey Features\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eFour independent, programmable Single-Pole Double-Throw (SPDT) relay channels.\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard 3500 series backplanes and slot structures.\u003c\/li\u003e\n  \u003cli\u003eSupports \"Normally Energized\" (NE) and \"Normally De-energized\" (NDE) configurations.\u003c\/li\u003e\n  \u003cli\u003eExtensive voting logic capability, allowing logical combinations of Alert and Danger statuses from multiple monitor channels.\u003c\/li\u003e\n  \u003cli\u003eEquipped with onboard health monitoring to ensure relay drive circuitry is functional.\u003c\/li\u003e\n  \u003cli\u003eCN designated option indicating compliance with specific country approval requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eApplications\u003c\/h3\u003e\n\u003cul style=\"list-style-type: square; color: #2d3748; padding-left: 1.5rem; margin-bottom: 1.5rem;\"\u003e\n  \u003cli\u003eExecutive emergency machinery shutdown systems for steam turbines, gas turbines, and compressors.\u003c\/li\u003e\n  \u003cli\u003eIntegration with Distributed Control Systems (DCS) and Programmable Logic Controllers (PLC) for hardwired alarm annunciation.\u003c\/li\u003e\n  \u003cli\u003eActuating local hazardous area alarm horns, beacons, and auxiliary indicators.\u003c\/li\u003e\n  \u003cli\u003eInterlocking critical process control loops based on physical machinery vibration boundaries.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; border-right: 1px solid #2d3748;\"\u003eParameter\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left;\"\u003eValue \/ Specification\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eBently Nevada\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eModel Number\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e3500\/32-01-CN\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eModule Type\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e4-Channel Relay Output Module\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eNumber of Channels\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e4 SPDT Relays\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eRelay Contact Rating (Resistive)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e5 A @ 120 Vac \/ 240 Vac (Max); 5 A @ 30 Vdc (Max)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eMinimum Contact Load\u003c\/td\u003e\n        \u003ctd style=\"padding: 100mA @ 5 Vdc;\"\u003e100 mA @ 5 Vdc\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eAgency Approvals Option\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCN (Country Specific Approvals)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eMounting Location\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eAny full-height slot except Power Supply and Rack Interface Module slots\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eCountry of Origin\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eUSA\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eShipping Weight (Calculated)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003e2.0 kg\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eConnections and Interfaces\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; width: 100%; margin-bottom: 1.5rem;\"\u003e\n  \u003ctable style=\"border-collapse: collapse; width: 100%; color: #2d3748; border: 1px solid #2d3748;\"\u003e\n    \u003cthead\u003e\n      \u003ctr style=\"border-bottom: 2px solid #2b6cb0;\"\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left; border-right: 1px solid #2d3748;\"\u003eTerminal Designation\u003c\/th\u003e\n        \u003cth style=\"padding: 0.75rem; text-align: left;\"\u003eFunctional Assignment\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eNO (Normally Open)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCloses connection to Common when relay coil is energized.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eNC (Normally Closed)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eOpens connection to Common when relay coil is energized.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr style=\"border-bottom: 1px solid #2d3748;\"\u003e\n        \u003ctd style=\"padding: 0.75rem; border-right: 1px solid #2d3748; font-weight: bold;\"\u003eCOM (Common)\u003c\/td\u003e\n        \u003ctd style=\"padding: 0.75rem;\"\u003eCommon reference pole for the respective channel's SPDT contact circuit.\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eEmpirical Engineering Insights\u003c\/h3\u003e\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eAlternative Models \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhile the 3500 system also supports a 16-Channel Relay Module (the 3500\/33), the 4-Channel 3500\/32 provides robust SPDT Form-C outputs which are typically preferred for direct trip solenoid activation. Ensure that the 3500\/32 firmware revision is compatible with your Rack Interface Module (RIM) firmware version before attempting slot allocation changes.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eApplication Pitfalls \u0026amp; Engineering Notes\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eWhen switching highly inductive AC loads (such as heavy solenoid valves or larger motor starters), installing external arc-suppression (RC snubbers) across the contacts is critical to prevent contact erosion and premature welding. Operating close to the 5 A limit without suppression can degrade relay lifespans and lead to dangerous \"fail-to-open\" states.\u003c\/p\u003e\n\n\u003ch4 style=\"color: #2b6cb0; margin-top: 1rem; margin-bottom: 0.5rem;\"\u003eCommissioning \u0026amp; Wiring Tips\u003c\/h4\u003e\n\u003cp style=\"color: #2d3748; margin-bottom: 1rem;\"\u003eAlways configure the \"OK Relay\" function correctly inside the configuration panel. Under normal running conditions, we recommend operating safety shutdown loops in a Normally Energized (NE) de-energize-to-trip mode. This ensures that a total loss of instrument control power automatically triggers the safe state of the machinery loop.\u003c\/p\u003e\n\n\u003ch3 style=\"color: #1a365d; border-bottom: 2px solid #2b6cb0; padding-bottom: 0.25rem;\"\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003cdiv style=\"background-color: #fff5f5; border-left: 4px solid #c53030; padding: 1rem; margin-bottom: 1.5rem; color: #9b2c2c;\"\u003e\n  \u003cstrong\u003eCRITICAL WARNING:\u003c\/strong\u003e Hazardous voltages may be present on the relay contact terminals. Disconnect and lock out all external power sources supplying the relay contacts before servicing, removing, or replacing the module. Failure to de-energize external wiring can result in severe electrical shock, component destruction, or accidental machinery trip.\n\u003c\/div\u003e\n\n\u003cdiv style=\"margin-bottom: 1.5rem;\"\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e1\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003ePower down the 3500 rack system if hot-swapping is not permitted by plant safety procedures. (The 3500 system supports hot-swapping under specific restricted environmental conditions).\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e2\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eInsert the main 3500\/32-01-CN module into the front of the rack, sliding it along the guide rails until it is firmly seated in the backplane connector. Tighten the two securing screws on the front panel.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start; margin-bottom: 1rem;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e3\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eMount the corresponding 4-channel relay I\/O module into the back of the rack directly behind the front-facing slot. Secure it with its chassis panel screws.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv style=\"display: flex; align-items: flex-start;\"\u003e\n    \u003cdiv style=\"background-color: #2b6cb0; color: #ffffff; border-radius: 50%; width: 1.75rem; height: 1.75rem; display: flex; align-items: center; justify-content: center; font-weight: bold; flex-shrink: 0; margin-right: 0.75rem;\"\u003e4\u003c\/div\u003e\n    \u003cp style=\"color: #2d3748; margin: 0;\"\u003eConnect your alarm loop field wiring to the rear terminal block using proper wire-end ferrules to guarantee mechanical integrity and prevent short-circuiting between adjacent contact terminals.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":52668285419883,"sku":"3500\/32-01-CN","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/3500-32-01-CN-20ebolhvkac_5fb76d26-62ea-4888-a313-7aae204a21de.jpg?v=1765520341","url":"https:\/\/www.plcprotech.com\/fa\/products\/bently-nevada-3500-32-01-cn-3500-series-4-channel-relay-module","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}