Introduction
The Bently Nevada 3500/20-01-02-00 125768-01 is a specific hardware configuration of the 3500/20 Power Supply, a foundational and critical component within the GE Bently Nevada 3500 Machinery Protection System. This module is engineered to provide highly reliable, clean, and regulated DC power to all the monitoring and protection modules within a 3500 rack.
Its primary role is to convert a wide range of incoming AC or DC line power into the precise low-voltage DC power required for the system's sensitive electronics. Designed with a hot-swap, redundant architecture, it allows two power supply modules to be installed in a single rack. This configuration ensures that if one unit fails, the other immediately assumes the entire electrical load without any interruption to the monitoring system, guaranteeing continuous protection for critical machinery like turbines and compressors. The "-01-02-00" and "-01" suffixes indicate specific manufacturing revisions and configurations for this robust power supply.
Parameters / Specifications
The key technical specifications for the Bently Nevada 3500/20-01-02-00 125768-01 are summarized in the table below.
| Parameter | Specification |
|---|---|
| Part Number | 3500/20-01-02-00 125768-01 |
| Product Line | GE Bently Nevada 3500 System |
| Module Type | Redundant, Hot-Swap Power Supply |
| Input Voltage | 85 to 265 V AC, 47 to 63 Hz (Auto-sensing) / 120 to 370 V DC |
| Output Voltages | +5 V DC and ±15 V DC (for the rack backplane) |
| Output Power | 105 Watts (sufficient to power a fully populated rack) |
| Redundancy | Supports N+1 redundancy when two modules are installed. |
| Hot-Swap Capable | Yes, can be inserted or removed from a powered-on rack without tools. |
| Status Indicators | LED indicators for Power On, AC OK, and DC OK. |
| Mounting | Slides into a dedicated slot in the 3500 rack. |
| Dimensions (H x W x D) | Standard 3500 Series Module (Approx. 3.9" x 8.7" x 7.5" or 99 mm x 221 mm x 190 mm) |
| Weight (Approx.) | 4.0 lbs (1.8 kg) |
| Operating Temperature | 0°C to +65°C (+32°F to +149°F) |
Application Scenarios
The 3500/20 Power Supply is the heart of the 3500 rack, providing energy to all other modules. Its applications are universal across all industries that use the 3500 system for machinery protection.
Typical application scenarios include:
Primary System Power for Machinery Protection Racks:
Installed in one or both power supply slots of a 3500 rack to provide clean, stable power to all monitoring and protection modules (e.g., 3500/42M Speed Monitor, 3500/25 Vibration Monitor). This is the foundational role in any 3500 system installation.
High-Availability Systems with Redundant Power:
Used in pairs to create a fault-tolerant power system within a single rack. This configuration is mandatory in critical applications where a single power supply failure must not lead to a loss of monitoring or protection, such as on an offshore gas compression platform or a main power generation turbine.
Preventive Maintenance and Operational Continuity:
Enables "hot-swapping" during maintenance. A technician can safely remove and replace a suspect or aging power supply module without needing to shut down the entire monitoring system or the machinery it protects, ensuring uninterrupted data collection and protection.
Industries of Use:
Oil & Gas (Production, Refining, Pipelines)
Power Generation (Nuclear, Fossil Fuel, Combined Cycle)
Petrochemical & Chemical Processing
Marine & Naval Propulsion
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
Your trust is the driving force for our continuous progress, submit your requirements immediately to get exclusive quotes
