3500/32 125720-01 Bently Nevada 4-Channel Relay Output Module Original In Stock
Four SPDT programmable relay card for 3500 TSI system, outputs alarm & trip interlock signals to DCS/ESD, supports logic voting for turbomachinery safety protection, tested surplus spare parts
Product Overview
- PN: 3500/32, Part No: 125720-01
- Brand: Bently Nevada (Baker Hughes)
- Series: 3500 Machinery Protection TSI System
- Type: 4-Channel Relay Output Module
Function: Full-height relay front module installed in any available slot of 3500 rack. It receives alert/danger alarm, sensor fault and system abnormal signals from all monitoring cards inside the rack. Users configure AND/OR voting logic via rack software to drive 4 independent relay contacts, output hardwire switching signals to ESD emergency shutdown system, DCS annunciator panel and local on-site alarm horn, realizing safety interlock and fault alert for rotating equipment
Core Features
- 4 isolated SPDT single-pole double-throw relay channels, each channel switchable between normally energized / normally de-energized mode
- Flexible logic programming: supports multi-channel signal combination voting, linkage with vibration, thrust, overspeed, temperature alarm and module fault status
- Epoxy sealed relays with built-in arc suppression circuit, anti-spark and anti-interference for long service life
- Front panel LED indicators for module running status, rack communication and each channel alarm trigger state
Hot-swappable rack mounting, no need to power off the whole rack during single module replacement
Technical Specifications
- Relay Quantity: 4 channels
- Contact Specification: SPDT; 5A@24VDC / 5A@240VAC; mechanical service life ≥100,000 switching cycles
- Typical Power Consumption: 5.8W
- Operating Temperature: -30℃ ~ +65℃
- Storage Temperature: -40℃ ~ +85℃
- Overall Dimension: 241 × 24.4 × 99.1mm
- Net Weight: ~0.4kg
- HS Code: 8538900000
- Certifications: CE
Product Status: Discontinued, fully tested surplus modules available
Compatibility
- Matched Equipment: All standard 3500/05 series 12-slot & 14-slot monitoring racks
- Supporting Software: Official 3500 rack configuration software for logic editing
- External Termination: Wiring directly via terminal ports on module front panel, no extra rear I/O card required
- Upper System: ESD emergency shutdown system, DCS distributed control system, field alarm devices
Not Compatible: Third-party non-3500 series rack chassis
Application
- Emergency shutdown interlock and fault alarm output for steam turbine, gas turbine and compressor 3500 protection racks in power and petrochemical industries
- Link abnormal vibration, axial displacement, overspeed signals to unit trip protection circuit
- On-site audible and light alarm triggering for equipment abnormal conditions
- Spare replacement and interlock function expansion of legacy 3500 machinery protection monitoring systems













