Product Overview
The 3500/25 149369-01 is a specialized high-temperature power supply module within Bently Nevada’s 3500 Machinery Protection System, engineered to deliver stable power to critical monitoring modules in extreme heat environments. As a rugged variant of the 3500 power supply family, this module is designed to operate reliably where standard power supplies would falter—making it indispensable for machinery protection in high-temperature industrial zones.
3500/25 149369-01 converts incoming AC power to regulated 24 V DC, ensuring consistent energy delivery to vibration monitors, position transmitters, and communication modules within 3500 racks. Its core strength lies in its ability to maintain performance in temperatures far exceeding typical industrial limits, preventing power disruptions that could compromise machinery health data. Whether installed in a turbine enclosure or near industrial furnaces, 3500/25 149369-01 acts as a lifeline for 3500 systems, ensuring uninterrupted monitoring even in the harshest thermal conditions.
Technical Specifications
| Parameter |
Value |
| Product Model |
3500/25 149369-01 |
| Manufacturer |
Bently Nevada (GE) |
| Product Type |
High-Temperature Power Supply Module |
| Input Voltage |
100-240 V AC, 50/60 Hz |
| Output Voltage |
24 V DC ±0.5 V |
| Operating Temperature Range |
-10°C to 70°C (-14°F to 158°F) |
| Total Power Output |
120 W |
| Number of Output Channels |
4 |
| Mounting Type |
3500 System rack-mount (1 slot) |
| Dimensions |
160 mm × 100 mm × 220 mm (W × H × D) |
| Protection Features |
Overload, short-circuit, overvoltage protection |
| Compatibility |
All 3500-series monitoring modules |
| Certification |
CE, UL 508, IEC 61010-1 |
| Cooling |
Enhanced passive convection with heat-dissipating fins |
Key Features and Benefits
The 3500/25 149369-01 stands out for its ability to operate in extreme temperatures, with a range of -10°C to 70°C—significantly broader than standard 3500 power supplies. This makes it ideal for installations near heat sources like turbine exhausts, furnace enclosures, or high-temperature process lines, where conventional power modules would fail or degrade prematurely.
Its robust power regulation ensures stable 24 V DC output even amid voltage fluctuations, critical for powering vibration monitors (like the 3500/42) and position transmitters that rely on consistent energy to deliver accurate data. Built-in protection mechanisms—including overload and short-circuit safeguards—shield both the module and connected devices from electrical faults, reducing the risk of system shutdowns.
Compatibility with 3500 system racks allows seamless integration, requiring no specialized adapters, while the 4 output channels support multiple modules, streamlining cabinet layout. Enhanced cooling via heat-dissipating fins prevents overheating in confined spaces, ensuring reliable performance in the tight, high-heat environments common in industrial machinery enclosures.
Application Scenarios
The 3500/25 149369-01 is tailored for environments where elevated temperatures challenge standard power supplies. In power generation facilities, it is deployed in steam turbine enclosures, powering 3500 vibration modules that monitor rotor health. Turbine rooms often reach 60°C or higher during operation, making the module’s high-temperature tolerance critical for uninterrupted monitoring—preventing missed fault alerts that could lead to turbine failures.
In oil and gas refineries, 3500/25 149369-01 supports 3500 systems near catalytic crackers and heater furnaces, where ambient temperatures regularly exceed 50°C. It powers proximity probe interfaces tracking compressor shaft position, ensuring data flows reliably even as heat radiates from nearby process equipment.
Chemical processing plants use
3500/25 149369-01 in high-temperature reactor areas, supplying power to 3500/50 speed monitors on agitator motors. Its ability to withstand both heat and chemical fumes ensures consistent operation in these aggressive environments, supporting predictive maintenance strategies that reduce unplanned downtime.
Related Models
3500/05 125760-01 – Standard-temperature power supply (0°C to 60°C) for general 3500 system installations, compatible with the same modules as 3500/25 149369-01.
3500/25 149369-02 – Higher-power variant (180 W) of 3500/25 149369-01, supporting more energy-intensive 3500 modules in high-temperature zones.
3500/42 133470-01 – Vibration monitor module commonly powered by 3500/25 149369-01 in high-heat environments.
3500/20 125760-01 – 3500 system rack that houses 3500/25 149369-01 and other monitoring components.
3500/25 149369-03 – Explosion-proof certified variant of 3500/25 149369-01, designed for hazardous high-temperature areas (ATEX Zone 2).
3500/92 133469-01 – Enclosure kit that enhances dust and moisture protection for 3500/25 149369-01 in harsh environments.
3500/25 149368-01 – Previous generation high-temperature power supply with basic protection features, still compatible with legacy 3500 racks.
Installation and Maintenance
Installing 3500/25 149369-01 requires a 3500 system rack with an available slot, mounted in a location where ambient temperatures stay within -10°C to 70°C. Ensure the rack is securely fastened to prevent vibration-induced loosening, and ground the module to the facility’s main ground bus to minimize electrical noise. Allow 75 mm of clearance around the module for airflow, as restricted ventilation can reduce cooling efficiency.
For maintenance, inspect
3500/25 149369-01 quarterly: check that heat fins are free of dust and debris (use compressed air to clean), verify output voltage with a multimeter (should remain 23.5-24.5 V DC), and ensure connectors are tight. Annually, test protection mechanisms by simulating a mild overload (per manufacturer guidelines) to confirm they activate correctly. Replace the module if voltage drifts beyond tolerance or if overheating occurs despite clean fins, typically every 8-10 years in continuous high-temperature operation.
Product Warranty
The 3500/25 149369-01 is backed by a one-year warranty from Xiamen Xiongba E-commerce Co., Ltd., covering manufacturing defects and offering free replacement for units that fail under normal operating conditions. This warranty reflects our confidence in Bently Nevada’s engineering, particularly the module’s ability to withstand high temperatures. Our global support team provides prompt assistance with installation guidance, troubleshooting, and warranty claims, ensuring minimal downtime for your high-temperature monitoring systems. Direct overseas sourcing ensures replacement modules are readily available, reinforcing our commitment to keeping your critical machinery protection setups operational.
Company Introduction: We offer a one-year warranty and free replacement service：
Xiamen Xiongba E-commerce Co., Ltd. Branch specializes in the field of industrial automation, focusing on the sales of Distributed Control Systems (DCS), robot systems, and modules and spare parts for large-scale servo control systems. Our business covers a wide range of industrial automation products, including PLCs, MOTOROLA MVME industrial modules, Anybus communication converters, RTU remote modules, industrial PCs, low-frequency industrial displays, and SCSI human-machine interfaces. With over a decade of industry experience, Xiongba has grown into a global supplier of industrial automation spare parts. We source directly from overseas, offering products and parts from multiple countries and manufacturers. This helps solve customers' procurement challenges, ensures product quality, and provides a significant price advantage.
