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3500/15 Low Voltage AC Power Input Module
3500/15 Low Voltage AC Power Input Module
3500/15 Low Voltage AC Power Input Module

BENTLY NEVADA 125840-02 3500/15 Low Voltage AC Power Input Module

Bently Nevada 125840-02 is a legacy low-voltage AC Power Input Module (PIM) used with the 3500/15 power-supply architecture. The PIM is the rear input module that receives and terminates incoming AC power for its associated power-supply module; it should not be described or purchased as the front power-supply module itself.

  • Item NO.:

    125840-02
  • Order(MOQ):

    1
  • Goods Stock:

    20
  • Payment:

    T/T
  • Lead Time:

    In stock
  • Weight:

    0.3KG
  • Dimension:

    12x12x2.6cm
  • Description:

    3500/15 Low Voltage AC Power Input Module
  • Price:

    Ask
BENTLY NEVADA · 3500 SERIES

125840-02 3500/15 Low Voltage AC Power Input Module

Official-source configuration guidance for engineering review, replacement checks and quotation preparation.

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Contact for quotation and configuration review
Manager: JimPei   |   Email: sales1@apterpower.com   |   Phone / WhatsApp: +8618020776782

Product Description

Bently Nevada 125840-02 is a legacy low-voltage AC Power Input Module (PIM) used with the 3500/15 power-supply architecture. The PIM is the rear input module that receives and terminates incoming AC power for its associated power-supply module; it should not be described or purchased as the front power-supply module itself.

The manufacturer identification visible on 125840-02 specifies a low-voltage AC input range of 85 to 132 Vac, a 4.5 A rating, 47 to 63 Hz operation and a 250 V / 6.25 A slow-blow fuse. The current 3500/15 datasheet classifies this design as a legacy Low Voltage AC PIM and shows the same front-label configuration.

Replacement decisions must preserve the matched power-supply and PIM generation. Baker Hughes states that the current Universal AC Power Supply and Universal AC PIM are not compatible with the legacy 3500 AC Power Supply, High Voltage AC PIM or Low Voltage AC PIM.

Features and Functions

Legacy 3500/15 PIM role
125840-02 is the rear low-voltage AC Power Input Module associated with a legacy 3500/15 AC power-supply set.
Clearly identified AC input
The manufacturer label identifies 85–132 Vac, 4.5 A and 47–63 Hz for this low-voltage AC input configuration.
Generation-specific compatibility
The legacy PIM must stay paired with the compatible legacy power-supply generation; current Universal AC components cannot be mixed into the pair.

Technical Information

Manufacturer Bently Nevada, a Baker Hughes business
Full part number 125840-02
Product family 3500/15 AC and DC Power Supplies
Product type Legacy Low Voltage AC Power Input Module (PIM)
Nominal input 110 Vac
Input voltage range 85 to 132 Vac rms
Input frequency 47 to 63 Hz
Current marking 4.5 A
Fuse marking 250 V / 6.25 A slow-blow
Installation position Special half-height input-module position directly behind the associated power supply
Power Input Module dimensions 120.7 × 25.4 × 114.3 mm (family specification)
Power Input Module weight 0.34 kg (family specification)
Operating temperature -30°C to +65°C
Storage temperature -40°C to +85°C
Relative humidity 95%, non-condensing
Compatibility Risk — do not mix legacy and Universal AC components
Baker Hughes states that the Universal AC Power Supply and Universal AC PIM are not compatible with the legacy 3500 AC Power Supply, High Voltage AC PIM or Low Voltage AC PIM. Before replacement, identify both the front power-supply module and the rear PIM; stop if their generation and part-number pairing cannot be confirmed.

Installation and Selection Boundaries

  • Use 125840-02 only as the rear Power Input Module in the compatible legacy 3500/15 AC power-supply arrangement.
  • The PIM receives hazardous AC power; installation and fuse work require the site’s approved isolation, lockout and verification procedure.
  • The input module is located directly behind its associated power supply in the designated left-side rack position.
  • Do not infer compatibility from the 3500/15 family name alone; verify both the power-supply module and PIM part numbers.

Frequently Asked Questions

What input source must be confirmed before 125840-02 is connected in a 3500/15 rack?
Confirm that the site source is the documented low-voltage AC range and matches the associated AC power-supply arrangement. Stop if the installed source or PIM label indicates another voltage class.
Where should 125840-02 be positioned during a 3500/15 rack rebuild?
Install it in the special half-height rear position directly behind its associated power-supply module. Verify the front-and-rear pairing before energizing the rack.
When can maintenance isolate the supply path associated with 125840-02 without removing rack power?
Only when the rack has a second power supply that is correctly installed, independently fed, and operating normally. Confirm the redundant path and follow the site isolation procedure before touching the PIM.
Where should a technician start when the supply associated with 125840-02 does not show a normal OK indication?
Check the incoming source, disconnect device, PIM seating, rear connection, and paired power-supply status in that order. Do not replace the PIM until the source and pairing are confirmed.
What should be checked after an input overvoltage event involving 125840-02?
Keep the affected supply path isolated and inspect the PIM, associated power supply, connector, and upstream protection under the site electrical procedure. Return it to service only after the approved checks pass.
What details should procurement match when ordering 125840-02 as a spare?
Provide the exact PIM number, associated 3500/15 supply type, site AC range, rack arrangement, quantity, destination, and clear front and rear label photographs.
ApterPLC service support
We help automation buyers review complete catalog numbers, compare official configuration options, organize documentation requirements and prepare international quotations. Availability, condition, delivery and documentation scope are confirmed separately for each order.

Technical evidence: Bently Nevada / Baker Hughes 3500/15 AC and DC Power Supplies Datasheet 141530 Rev. P, cross-checked against the manufacturer identification visible on the supplied 125840-02 product images.

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ApterPLC Technical Library

Official Technical Resources

3500/15 AC and DC Power Supplies Datasheet — 141530 Rev. P

Manufacturer-issued specifications, configuration information and compatibility notes for the 3500/15 power-supply and Power Input Module architecture.

View Official PDF on ApterPLC
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The PDF is hosted on ApterPLC as a manufacturer-issued technical reference. Confirm the complete catalog number and project requirements before ordering.

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