BENTLY 3500/15 125840-01 Control Card Module

Bently Nevada 125840-01 (3500/15 High Voltage AC Power Input Module)
125840-01 is the 3500/15 high voltage AC power input module (PIM) of the 3500 series mechanical protection system (TSI) of Bently Nevada (a subsidiary of GE). It provides stable power supply for the entire 3500 rack and is the core power component of the rotating machinery monitoring system.

I. Basic Information
Part Number: 125840-01 (3500/15 back panel module, front panel is 127610-01)
Manufacturer: Bently Nevada (GE Baker Hughes)
Product Type: High Voltage AC Power Input Module (HVAC PIM)
Compatible System: 3500 Series Vibration/Axis Vibration/Rotational Speed Monitoring Protection System
Installation Location: Special half-height slot on the left side of the 3500 rack (supports single/double power redundancy)

Core Electrical Parameters
Input Voltage: 175–250VAC (wide range, compatible with industrial power grid)
Input Frequency: 47–63Hz (50/60Hz adaptive)
Output Capacity: Provides a stable 24VDC/5A/120W DC power supply for the full configuration of the 3500 rack
Protection Functions: Overcurrent, overvoltage, overheat, reverse polarity protection, with built-in LED status indication
Isolation and Certification: Electrical isolation design; CE/UL/CSA certification

Physical and Environmental Specifications
Size: Half-height module (88.9mm×44.5mm×133.4mm)
Weight: Approximately 0.5–0.6kg
Operating Temperature: -40℃ ~ +70℃ (suitable for industrial harsh environments)
Storage Temperature: -40℃ ~ +85℃
Humidity: 95% non-condensing

Function and Application
System Power Supply Core: Converts high voltage AC power into stable DC power required by all monitoring modules (vibration, rotational speed, displacement, etc.) of the 3500 rack.
Redundancy Support: The rack can accommodate 1–2 power supplies (primary + backup), supports hot swapping, and does not interrupt system operation.
Applicable Scenarios: Condition monitoring and protection for large steam turbines, compressors, generators, pumps, etc. (power plants, petrochemicals, metallurgy).