BENTLY 125840-02 Vibration Sensor

Input Voltage Range	85–132 VAC (nominal)
Input Frequency	47–63 Hz
Output Voltage	24 VDC
Output Current	3 A (continuous)
Power Efficiency	≥85%

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Description

BENTLY 125840-02 Vibration Sensor

125840-02

The BENTLY 125840-02 (also known as the 3500/15 Low Voltage AC Power Input Module) is a critical component of the Bently Nevada 3500 Machinery Protection System (now part of Siemens), designed to provide stable and reliable AC power input for industrial automation and control systems. Below is a detailed overview of its technical specifications, functional capabilities, and practical applications.

Parameter	Specification
Model	125840-02 (3500/15-01-00)
Type	Low voltage AC power input module (PIM)
Input Voltage Range	85–132 VAC (nominal)
Input Frequency	47–63 Hz
Output Voltage	24 VDC
Output Current	3 A (continuous)
Power Efficiency	≥85%
Operating Temperature	-30°C to +65°C
Storage Temperature	-40°C to +85°C
Humidity	5–95% non-condensing
Physical Dimensions	241.3 × 24.4 × 99.1 mm (9.5 × 0.96 × 3.9 in)
Weight	0.82 kg (1.8 lb)
Compliance	CSA/US Class I Division 2, ATEX Zone 2 (optional variants)

125840-02

AC-to-DC Conversion: Converts low-voltage AC input (85–132 VAC) to stable 24 VDC for powering other modules in the 3500 series rack13.

125840-02

Redundant Architecture: Supports dual power supply configurations (primary in lower slot, backup in upper slot) to ensure uninterrupted operation during maintenance or component failure. This redundancy aligns with API 670 and API 612 standards for critical machinery protection327.

Hot-Swap Capability: Replaceable without powering down the system, minimizing downtime

The BENTLY 125840-02 is a rugged, high-reliability low-voltage AC power input module that ensures seamless operation of the 3500 Machinery Protection System. Its redundant design, wide input voltage range, and compatibility with harsh industrial environments make it ideal for safeguarding critical rotating machinery. While third-party suppliers in Xiamen provide cost-effective solutions, Siemens’ global support network ensures long-term reliability. For detailed technical documentation or customized configurations, contact Siemens’ industrial support teams or visit their official resource library.