• Full Model: 3500/32-01-01 | Part No.:125712-01 | Brand: Bently Nevada (Baker Hughes)
• Channel Configuration: 4 independent SPDT single-pole double-throw relay channels, each channel supports jumper selection of normally energized / normally de-energized mode
• Relay Contact Parameter: 5A@250VAC / 5A@30VDC resistive load, epoxy sealed relay with built-in arc suppression circuit
• Service Life: 100,000 switching cycles under rated load conditions
• Rack Power Supply: Backplane 24VDC power supply, typical power consumption 5.8W
• Indicator Lights: Module OK running light, rack communication TX/RX light, independent CH ALARM indicator for each relay channel
• Certification Definition: 01=CSA Div2 explosion-proof safety certification; rear 01=standard official firmware revision
• PCB Protection: Overall conformal coating treatment, anti-dust, moisture and oil mist corrosion in power plant cabinet environment
• Ambient Conditions: Operating temperature -30℃ ~ +65℃; storage temperature -40℃ ~ +85℃; relative humidity 0~95% non-condensing
• Installation Form: Full-height plug-in card, installed at the right side of the rack interface module, supports hot-swap maintenance
• Compliance Standards: SIL2 functional safety, CE, UL, CSA hazardous area certification, industrial EMC anti-interference standard
• Physical Size: Main board 241×24.4×242mm, net weight approx 0.7kg

• Flexible programmable alarm logic: configure AND/OR combined logic through official rack configuration software, realize single-channel alarm triggering or multi-condition voting trip protection
• Multi-source signal linkage: can collect alarm status of all monitoring boards in the rack, module self-fault signals to trigger relay action synchronously
• Two working modes optional: each relay supports normal power-on hold or normal power-off release, convenient for designing fail-safe trip circuit
• Built-in relay arc suppression design, effectively eliminate electric spark generated by contact breaking, prolong service life and improve on-site operation stability
• Backplane high-speed bus communication, real-time interaction with each monitoring module, fast response of relay action less than 10ms when fault occurs
• Complete module self-diagnosis function, automatically report communication failure, power supply abnormality and internal circuit fault to the rack host
• CSA Div2 certification design, applicable for cabinet layout near turbine oil system, gas pipeline and other flammable and explosive areas
• Standard rack hot plug function, replace the module online during unit normal operation without affecting other protection loops in the system
• Unified matching with 3500/40, 3500/42, 3500/50 and other monitoring cards to build a complete turbine safety monitoring & protection system

• Thermal Power & Combined Cycle Power Plant: TSI system vibration, displacement fault alarm and turbine emergency trip control module
• Petroleum & Natural Gas Industry: Centrifugal compressor, gas turbine unit safety interlock protection spare parts on offshore platforms and gas gathering stations
• Chemical & Metallurgical Industry: Large steam turbines, blowers, fans and other rotating equipment safety protection system relay output board
• Hydropower Station: Generator bearing vibration monitoring alarm and safety interlock control component
• Equipment Maintenance Retrofit: Replacement spare module for aging 3500 rack relay cards of various industrial rotating machinery monitoring systems

Product Picture