BENTLY 3500/15 114M5335-01 | Low Voltage DC Power Input Module

Description

• Brand: Bently Nevada
• Full Model Number: 3500/15 114M5335-01
• Lifecycle Status: Current 3500/15 power-supply family; replacement availability varies
• Core Function: Low Voltage DC Power Input Module
• Top 3 Technical Specs: 20–30 VDC input; 11.0 A maximum full-rack current capability; 120.7 × 25.4 × 114.3 mm
• System: Bently Nevada 3500 Machinery Protection System
• Module Type: DC Power Input Module PIM
• Associated Power Supply: 114M5330-01 Low Voltage DC Power Supply
• Rack Position: Rear-left PIM interface
• Weight: Approx. 0.34 kg / 0.75 lb
• Redundancy: Supports dual-supply AC/DC redundancy architecture
• Stock & Condition: Exact stock confirmation required; New Surplus / Tested Refurbished; Emergency shipping subject to warehouse cutoff

Bently Nevada’s 3500/15 documentation identifies 114M5335-01 as the Low Voltage DC Power Input Module, used with the 114M5330-01 Low Voltage DC Power Supply. The published input range is 20–30 VDC, with the PIM installed at the rear of the rack; the low-voltage DC supply arrangement supports a maximum full-rack current draw of 11.0 A.

Module 3: Obsolescence & Supply Chain Deep Dive

A failure of the 114M5335-01 can interrupt DC power entry to a 3500 rack even though the monitoring modules themselves remain serviceable. This is the rear-interface component for the low-voltage DC power arrangement, and it works together with the front-mounted 114M5330-01 supply. Bently Nevada’s current 3500/15 documentation lists 114M5335-01 as the low-voltage DC PIM and specifies 20–30 VDC input; a full rack can draw up to 11.0 A under the documented low-voltage DC configuration.

From a TCO perspective, replacing the PIM is a much smaller intervention than redesigning a 3500 rack power architecture. The existing rack, monitor cards, field wiring, and protection configuration can remain in service when the exact low-voltage DC supply/PIM combination is restored. One critical constraint remains: Bently Nevada states that the newer universal AC, high-voltage DC, and low-voltage DC supply/PIM combinations are not interchangeable with the corresponding legacy supply/PIM combinations. (A low-cost substitute with the wrong generation can create a power-interface mismatch that is more expensive than the original failure.)

BENTLY 3500/15 114M5335-01

Module 4: Compatibility & Replacement Matrix

The 3500/15 datasheet separates the low-voltage DC PIM from the power-supply module and identifies 114M5335-01 as the PIM and 114M5330-01 as the corresponding supply.

⚠️ Field Traps — Watch Out

• Legacy vs Current Generation: Do not substitute 133300-01, the legacy low-voltage DC PIM, simply because it also belongs to the 3500/15 family. Bently Nevada explicitly states that the newer low-voltage DC supply/PIM pair is not compatible with the legacy low-voltage DC pair.
• Power-Supply Pairing: Verify that the rack uses the 114M5330-01 + 114M5335-01 low-voltage DC combination. The PIM is not an independent generic 24 VDC interface.

Module 5: Quality Assurance & Testing SOP

1. OEM anti-counterfeit visual inspection — verify Bently Nevada markings, 114M5335-01 identification, labels, connector geometry, enclosure condition, and traceability.
2. Part-number and generation audit — confirm the exact PIM number and verify that the installed rack uses the current low-voltage DC generation rather than the legacy 133300-01 arrangement.
3. Mechanical inspection — examine the rear connector, mounting hardware, input terminals, PCB/interface condition, and enclosure for cracks, corrosion, or deformation.
4. Electrical pre-screening — verify continuity, grounding, insulation/isolation, and abnormal resistance before energization.
5. Power-on self-test (POST) — install the PIM with the correct 114M5330-01 power supply in an approved 3500/15 test rack and verify normal startup.
6. 24 VDC input verification — apply a controlled source within the 20–30 VDC range and record input stability.
7. Rack power-distribution test — operate the associated power supply and verify that the rack receives the expected DC power without abnormal voltage drop.
8. Full-load simulation — apply representative rack loading toward the documented 11.0 A maximum and monitor PIM behavior, voltage stability, and connector temperature.
9. Redundancy test — where a dual-supply rack is configured, verify primary/backup transfer behavior according to the installed 3500/15 arrangement.
10. Fault-protection test — verify appropriate response to controlled input interruption and approved fault conditions without exposing connected machinery to an uncontrolled shutdown.
11. Extended energized run — monitor input stability, thermal behavior, connector condition, and intermittent power loss.
12. Final QC release — photograph the identification, retain electrical test results, document the paired power-supply model, and package the PIM to prevent connector or terminal damage.

The published 3500/15 documentation specifies 20–30 VDC for the low-voltage DC option and lists 114M5335-01 as its dedicated PIM. The same documentation describes dual-supply operation in which the second supply can provide backup power, making redundancy testing relevant where that architecture is installed.

Module 6: Procurement & Lifecycle FAQ

Q1. Is BENTLY 114M5335-01 genuinely in stock, and what is the cutoff for emergency shipping?
Exact availability should be confirmed against 114M5335-01, quantity, condition, and destination before PO release. Current supplier listings are inconsistent: one listing reports 8–10 weeks estimated lead time and no immediate stock, while another reports stocked units and a shorter lead time. Emergency dispatch therefore requires direct physical-inventory confirmation.

Q2. How do you verify the condition and authenticity of an obsolete or surplus 114M5335-01?
Require full part-number inspection, OEM marking verification, connector and terminal examination, electrical screening, controlled 20–30 VDC energization, rack power-distribution testing, and load testing with the correct 114M5330-01 supply. Record the PIM’s identity separately from the paired power supply.

Q3. Are there any firmware compatibility issues engineers should check before issuing the PO?
There is no firmware flash associated with this passive PIM. The important engineering check is power-generation compatibility. Confirm whether the rack uses the current low-voltage DC pair 114M5330-01 / 114M5335-01 or the legacy pair before approving the replacement. Bently Nevada explicitly states that these generations are not interchangeable.

Q4. Can 133300-01 replace 114M5335-01?
No, not as a direct substitution. 133300-01 is the legacy low-voltage DC PIM, while 114M5335-01 belongs to the newer low-voltage DC power-supply/PIM arrangement. The manufacturer documentation explicitly identifies these generations as incompatible.

Q5. What warranty and return terms should procurement require?
Require a written warranty period, DOA criteria, return-authorization process, serial/part-number traceability, and exclusions for incorrect DC polarity, overvoltage, installation damage, and use with an incompatible power-supply generation. The quotation should explicitly identify 114M5335-01 as the low-voltage DC PIM and state its tested condition.