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Bently Nevada 125840-01 High Voltage AC Power Input Module (PIM)

Bently Nevada 125840-01 High Voltage AC Power Input Module (PIM)

Item NO.: 125840-01
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Warranty: 1 year 


Condition : brand new in factory sealed box


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Detail

  • Product NameBently Nevada 125840-01 High Voltage AC Power Input Module (PIM)
  • Item NO.125840-01
  • Weight0.3400 kg = 0.7496 lb = 11.9931 oz
  • CategoryTSI
  • BrandBently Nevada
  • Creation Time2025-02-24
  • High Voltage AC Power Input Module
Bently Nevada · 3500/15 · Legacy AC Power Input

Bently Nevada 125840-01 High Voltage AC Power Input Module

The Bently Nevada 125840-01 is associated with the legacy High Voltage AC power-input architecture of the 3500/15 Power Supply system. The rear Power Input Module provides the incoming high-voltage AC connection for the corresponding legacy AC power-supply configuration in a 3500 rack.

3500/15 Legacy AC High Voltage AC PIM 47–63 Hz Rear Rack Module
Legacy 3500/15 Power Architecture

Overview

The Bently Nevada 125840-01 belongs to the earlier 3500/15 AC power-supply architecture. Within this design, the Power Input Module is installed at the rear of the rack directly behind the associated front power-supply module.

The PIM provides the plant-side electrical interface while the front 3500/15 supply converts the incoming power into the voltages required by the monitoring modules installed in the rack. This legacy high-voltage AC configuration is separate from the later Universal AC architecture.

Baker Hughes Technical Information

Technical Specifications

Manufacturer Bently Nevada, a Baker Hughes company
Part Number 125840-01
Product Series 3500 Series Machinery Protection System
Associated System 3500/15 Power Supply
Module Type Legacy High Voltage AC Power Input Module
AC Input Range 175–264 Vac rms
Input Frequency 47–63 Hz
Rated Current Shown on Legacy PIM 2.3 A
Rack Position Special half-height rear position behind the associated power supply
PIM Dimensions — Imperial 4.75 × 1.0 × 4.5 in
Operating Temperature -30°C to +65°C (-22°F to +150°F)
Storage Temperature -40°C to +85°C (-40°F to +185°F)
Relative Humidity 95%, non-condensing
Legacy Power Input Design

Key Features

High Voltage AC Input
Provides the rear electrical interface for the legacy high-voltage AC version of the 3500/15 rack power architecture.
Rear-Mounted PIM
Installs directly behind the associated 3500/15 power-supply module in the dedicated rack power position.
Rack Power Interface
Routes incoming AC power to the associated front supply that provides the regulated voltages required by the 3500 monitoring rack.
Redundant Rack Support
The 3500 rack architecture supports two power supplies so the second supply can act as backup to the primary supply.
Legacy Architecture
Part of the earlier AC input design that predates the later Universal AC power-supply and PIM combination.
Separate Front / Rear Modules
The front power supply and rear PIM are separate hardware components, so both parts of the installed pair must be identified during maintenance.
Machinery Protection Rack Power

Applications

This module is intended for existing 3500 Series installations built around the legacy high-voltage AC 3500/15 power architecture. Its primary role is to provide the incoming AC connection for the rack power system.

Existing 3500 Racks
Maintenance of installed rack systems using the legacy high-voltage AC input arrangement.
Machinery Protection
Power-input infrastructure for 3500 Series monitoring and protection racks.
Maintenance Spares
Exact-item service work where the installed legacy supply and PIM generation must be retained.
Legacy Hardware

Lifecycle

Baker Hughes' current 3500/15 documentation identifies the High Voltage AC Power Input Module as part of the legacy 3500 AC power architecture. The current Rev. P spare-parts table no longer lists 125840-01 by part number, so no current manufacturer sales status or discontinuation date is stated here.

Important Compatibility Note
Baker Hughes states that the later Universal AC Power Supply and Universal AC PIM are not compatible with the legacy High Voltage AC or Low Voltage AC units. Do not replace only one half of the legacy supply / PIM pair with Universal AC hardware.
Replacement Planning
When servicing an older rack, identify both the front power-supply module and rear Power Input Module, including their revision markings. A conversion to the Universal AC architecture should be treated as a matched power-system change rather than a direct single-module substitution.
Buyer & Maintenance Questions

Frequently Asked Questions

1. What is 125840-01 used for?
125840-01 is the rear High Voltage AC Power Input Module associated with the legacy 3500/15 AC rack power architecture.
2. Is 125840-01 the same as 106M1081-01?
No. 125840-01 belongs to the legacy High Voltage AC architecture, while 106M1081-01 is the Universal AC Power Input Module. Baker Hughes states that Universal AC hardware is not compatible with the legacy AC units.
3. What should be checked before ordering 125840-01?
Confirm the complete part number, the front 3500/15 power-supply module, the PIM revision, rack configuration, incoming AC supply and whether the requirement is an exact legacy spare or a full power-system upgrade.
4. Can 125840-01 be replaced directly by a Universal AC PIM?
No direct one-for-one replacement should be made. The Universal AC supply and PIM form a different matched architecture and cannot be mixed with the legacy AC components.
5. Is 125840-01 the complete 3500/15 power supply?
No. It is the rear Power Input Module. The front power-supply module is a separate component, and both parts of the installed legacy AC pair should be identified before maintenance or replacement.
Legacy 3500 Power Spare Inquiry
Need 125840-01?
Send us the front power-supply part number, PIM revision and rack configuration for availability, quotation and shipping support.
Support for Legacy Automation Systems

About IndustryParts

IndustryParts works with maintenance teams and industrial operators sourcing parts for long-service automation and machinery-monitoring systems. Our product coverage includes vibration-monitoring hardware, PLC and DCS modules, drive components, communication equipment and industrial control electronics.

For older equipment, revision and configuration details can be as important as the main part number. We assist with model checking, sourcing, commercial quotations, order coordination and international shipping.

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