Product Short Description
125768-01 is an original official rear-mounted terminal board for the Bently Nevada 3500 Series Machinery Protection Monitoring System. It serves as the exclusive signal interface component between 3500 system rack backplane internal circuits and external field sensors, cables, proximitors and relay output circuits. This terminal board integrates unified signal wiring terminals, shielding grounding terminals, isolation terminals and vibration-resistant terminal structures. It realizes centralized, standardized and reliable connection of all vibration, displacement, Keyphasor, thrust position, differential expansion and seismic monitoring signals.
Description
Detailed Technical Specifications
| Parameter | Exact Specification |
|---|---|
| Product Series | 3500 Series System Rear Terminal Board |
| Official Part Number | 125768-01 |
| Installation Position | Rear side of standard 3500 system rack chassis |
| Terminal Type | SpringLoc vibration-resistant pluggable screw terminals |
| Signal Interface Capacity | Supports full slot signal wiring for standard 3500 system rack |
| Applicable Signal Types | Eddy current proximity probe analog signals, proximitor output signals, Keyphasor pulse signals, seismic vibration signals, alarm relay output signals, power supply signals |
| Conductor Wire Range | 0.5 mm² to 2.5 mm² stranded copper wire |
| Terminal Rated Voltage | 30 VDC maximum |
| Terminal Rated Current | 5 A per channel maximum |
| Board Material | High-temperature flame-retardant epoxy fiberglass PCB |
| Shell & Bracket Material | Galvanized cold-rolled steel, anti-corrosion coating |
| Integrated Functions | Signal wiring terminals, shielding ground terminals, system common ground terminals, isolation partition terminals |
| Operating Temperature Range | -40 °C to +85 °C |
| Storage Temperature Range | -55 °C to +125 °C |
| Operating Humidity | 0% to 95% non-condensing |
| Anti-Vibration Performance | Meets industrial machinery vibration resistance requirements, compliant with API 670 mechanical standards |
| EMC Performance | Integrated shielding grounding design, compliant with EN 61000-6-2 / EN 61000-6-4, high EMI/RFI immunity |
| Dimensions | Standard matched size for 3500 system rear rack |
| Total Weight | 0.68 kg |
| Compliance Standards | API 670 4th Edition, CE, UL, CSA |
| Origin | United States |
Core Functional Features
- Full System Signal Centralized Wiring Interface
Unified centralized wiring for all 3500 monitoring module signals including shaft vibration, thrust position, differential expansion, Keyphasor speed-phase, seismic vibration and relay outputs; realizes standardized field cable connection.
- Patented SpringLoc Vibration-Resistant Terminal Structure
Anti-loosening spring terminal design completely prevents wire falling off and poor contact under strong mechanical vibration environments of rotating machinery sites.
- Independent Shielding & System Ground Design
Integrated independent signal shielding ground terminals and system common ground terminals; effectively reduces electromagnetic interference and improves signal transmission stability.
- Standardized Plug-and-Play Installation
Perfect mechanical and electrical matching with original 3500 system rack backplane; direct rear-mounted installation, no modification required, plug-and-play replacement.
- Convenient Maintenance & Fault Troubleshooting
Clear terminal signal definition, independent channel wiring isolation; greatly simplifies daily inspection, wiring check, signal measurement and fault diagnosis operations.
- High Flame-Retardant & High-Temperature Resistance
Flame-retardant PCB board and high-temperature resistant terminal materials; meets industrial safety and fire protection requirements of power plant and petrochemical sites.
- Full Compatibility With All 3500 Modules
100% compatible with 3500/15 power modules, 3500/22 vibration modules, 3500/33 Keyphasor modules, 3500/62 thrust modules, 3500/70M seismic modules, 3500/91M differential expansion modules.
- Reliable Electrical Isolation Performance
Independent channel isolation partitions between different signal groups; prevents crosstalk between analog signals, pulse signals and relay output signals.
Typical Application Scenarios
- Power Generation Industry
Rear wiring interface terminal board for steam turbine, gas turbine, turbo generator and boiler feed water pump 3500 vibration & displacement protection monitoring systems.
- Oil & Gas Industry
System rear terminal board for natural gas compressors, pipeline booster units and refinery rotating machinery 3500 protection systems; suitable for industrial and hazardous areas.
- Petrochemical & Chemical Industry
Dedicated wiring terminal board for centrifugal pumps, process compressors, large fans and mixer rotating machinery condition monitoring & safety protection systems.
- Metallurgy & Cement Industry
Rear terminal board for rotary kilns, rolling mills, crushers and induced draft fan 3500 machinery protection monitoring systems under high-temperature and strong-vibration environments.
- Heavy Manufacturing & Equipment Maintenance
Original replacement terminal board for 3500 system maintenance, renovation, expansion and fault repair projects.
System Matching & Reliability Information
- Matching devices: All Bently Nevada 3500 system racks, backplanes, 3500 series monitoring modules, relay modules, field proximity probes, proximitors and extension cables.
- Warranty period: 12 months for brand new original factory sealed products.
- Product status: Original brand new, in stock, available for global delivery.
- Installation requirement: Directly mounted at the rear of original 3500 system rack, matched with original backplane socket.
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