Bently Nevada 125840-01 Power Input Module – 3500 Series Machinery Protection System
Imagine a critical turbine or compressor train running without a reliable power backbone for its protection system. A single power interruption to the monitoring rack can blind your entire machinery protection layer — vibration alarms go silent, trip signals fail to fire, and catastrophic mechanical failure becomes a real risk. In high-stakes rotating equipment environments, the power input module is not a peripheral component; it is the heartbeat of the entire 3500 Series rack.
The Bently Nevada 125840-01 is the dedicated Power Input Module engineered for the 3500 Series Machinery Protection System — one of the most widely deployed condition monitoring platforms in global oil & gas, power generation, and petrochemical industries. Within the 3500 family, the 125840-01 occupies the foundational slot, converting and conditioning incoming AC/DC power to deliver stable, regulated voltage rails to every monitor module in the rack. Its proven design is trusted in thousands of installations across refineries, LNG terminals, and power plants worldwide.
Technical Specifications
- Part Number: 125840-01
- Brand: Bently Nevada (Baker Hughes)
- Series: 3500 Machinery Protection System
- Module Type: Power Input Module
- Form Factor: 3500 Series Rack-Mount Module
- Compatibility: 3500 Series Rack (3500/05, 3500/15, 3500/20, 3500/22, 3500/25, 3500/32, 3500/40, 3500/42, 3500/44, 3500/45, 3500/50, 3500/60, 3500/61, 3500/62, 3500/70, 3500/72)
- Weight: 300 g (approx.)
- Condition: New / Refurbished / Tested Available — specify on inquiry
Note: All specifications are based on published Bently Nevada documentation. Contact us to confirm exact revision details for your application.
Key Features & Benefits
- Rack-Level Power Conditioning: Delivers clean, regulated power to all monitor modules, eliminating noise-induced false trips.
- Redundancy-Ready Design: Supports dual power input configurations for uninterrupted protection in critical applications.
- Hot-Swap Capability: Designed for live rack environments — minimizes downtime during replacement.
- Wide Input Voltage Tolerance: Accepts varying AC/DC input ranges common in industrial plant environments.
- Compact Rack-Mount Form Factor: Slots directly into the standard 3500 Series rack without additional hardware.
- Long Service Life: Built to Bently Nevada’s industrial-grade reliability standards for continuous 24/7 operation.
- OEM Compatibility: 100% compatible with all 3500 Series monitor and I/O modules.
Industry & Equipment Applications
- Oil & Gas: Upstream compressor trains, midstream pipeline pumps, downstream refinery turbines
- Power Generation: Steam turbines, gas turbines, hydro generators
- Petrochemical & Chemical: Reactor feed compressors, critical agitators
- LNG & FPSO: Liquefaction train protection systems
- Pulp & Paper / Mining: Large rotating equipment requiring continuous vibration monitoring
System Integration & Compatible Parts
The 125840-01 is designed to work seamlessly within the Bently Nevada 3500 ecosystem. Commonly paired components include:
- 3500/05 Rack Interface Module
- 3500/15 Power Supply Module
- 3500/22M Transient Data Interface
- 3500/40M Proximitor / Seismic Monitor
- 3500/42M Proximitor / Seismic Monitor
- 3500/45 Position Monitor
- 3500/50 Tachometer Module
- 3500/60 Temperature Monitor
- 3500/70 Keyphasor Module
If you are rebuilding or expanding a 3500 rack, our team can assist with full BOM verification and cross-reference to ensure compatibility.
Our Quality Assurance Process
- Visual Inspection: Every unit is inspected for physical damage, connector integrity, and label verification.
- Functional Testing: Modules are bench-tested under simulated rack conditions prior to shipment.
- Authenticity Verification: We source only from traceable supply chains — no counterfeit risk.
- Secure Packaging: ESD-safe packaging with shock-absorbing materials for international freight.
- Documentation: Test reports and certificates of conformance available upon request.
How to Order
- Click “Request a Quote” or contact us directly via email or WhatsApp.
- Provide your required quantity, preferred condition (new/refurbished), and delivery timeline.
- Receive a formal quotation within 24 business hours.
- Confirm order — we handle export documentation, customs clearance support, and international logistics.
We accept T/T (bank transfer), PayPal, and other B2B payment methods. Minimum order: 1 unit.
Why Choose Konmask.com?
- ✅ Industrial Automation Specialists: Focused exclusively on PLC, DCS, and condition monitoring components.
- ✅ Global B2B Supply: Serving engineering firms, EPCs, and MRO teams in 30+ countries.
- ✅ Fast Sourcing: Extensive supplier network for hard-to-find and obsolete parts.
- ✅ Technical Support: Our team includes experienced automation engineers who can assist with compatibility and integration questions.
- ✅ Reliable Logistics: DHL, FedEx, and freight forwarding options with full export documentation.
Frequently Asked Questions
Q: Is the Bently Nevada 125840-01 still in production?
A: The 3500 Series remains an active product line under Baker Hughes (Bently Nevada). Availability of specific revision levels may vary — contact us to confirm current stock and lead times.
Q: Can the 125840-01 be used with both AC and DC input power?
A: The 125840-01 is designed to accept the standard input power configurations supported by the 3500 rack. Please consult the Bently Nevada 3500 System Hardware Manual or contact our team for your specific site power requirements.
Q: Do you provide a warranty on this module?
A: Yes. We offer a standard 90-day functional warranty on all tested/refurbished units. New units carry the original manufacturer warranty terms.
Q: Can you supply other 3500 Series modules alongside this order?
A: Absolutely. We maintain stock and sourcing capability across the full 3500 Series product family. Share your complete BOM and we will provide a consolidated quotation.
Q: What is the lead time for international orders?
A: In-stock items typically ship within 3–5 business days. Express DHL/FedEx delivery to most destinations takes 3–7 business days after dispatch.
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Contact: support@konmask.com | +0086 19859288691
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