Description
Bently Nevada 16925-30 Interconnect Cable
Product Overview
The Bently Nevada 16925-30 is a standard interconnect cable for Bently Nevada 330400 and 330425 accelerometers. It belongs to the 16925-XX cable family and provides the physical electrical path between the accelerometer and the associated monitoring system. The 16925-30 designation specifies the 30-foot cable length, approximately 9.0 meters. Bently Nevada documentation identifies the 16925 family as a 3-conductor shielded cable using 22 AWG (0.5 mm²) conductors, with a 3-socket plug at one end and terminal lugs at the other.
For machinery monitoring work, the cable should be treated as part of the measurement circuit rather than as generic plant wiring. The 330400 and 330425 accelerometers require three conductors, and Bently Nevada specifically recommends shielded cabling to reduce noise interference. The standard 16925-XX cable is documented for connections to these accelerometers, including installations associated with Bently Nevada monitoring equipment.
The Bently Nevada 16925-30 is therefore relevant to vibration and machinery-condition monitoring installations where a 30-foot field connection is required. Its terminal-lug termination makes it suitable for connection at the monitor or termination side without adding an unnecessary adapter. The Bently Nevada 16925-30 is also a practical replacement consideration when an existing 16925-series cable has damaged insulation, connector problems, or an incorrect field length. The important point during procurement is connector and cable-family verification, not simply matching the 30-foot dimension.
Product Introduction
A bad accelerometer cable can look like a bad sensor, especially when the monitoring channel develops intermittent noise or an unstable signal. The Bently Nevada 16925-30 addresses the connection side of that measurement chain with the standard 16925-series three-conductor shielded construction used with 330400 and 330425 accelerometers.
At 30 ft (9.0 m), it is one of the standard length options documented for the 16925 family. For a legacy replacement, verify the accelerometer model, connector arrangement, cable length, and monitor termination before ordering.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 16925-30 |
| Manufacturer / Brand | Bently Nevada |
| Product Type | Accelerometer interconnect cable |
| Cable Series | 16925-XX |
| Compatible Accelerometers | 330400 / 330425 |
| Cable Length | 30 ft / approximately 9.0 m |
| Number of Conductors | 3 |
| Conductor Size | 22 AWG / 0.5 mm² |
| Shielding | Shielded |
| Accelerometer-End Connection | 3-socket plug |
| Monitor-End Connection | Terminal lugs |
| Minimum Standard Length | 2 ft / 0.6 m |
| Maximum Standard Length | 99 ft / 30 m |
| Installation Type | Field interconnect between accelerometer and monitoring system |
The cable construction and length range are documented in the 330400/330425 technical documentation. The 16925 series can be ordered in one-foot increments within the documented 2–99 ft range, while 30 ft is one of the standard length options.
16925-30
Major Features and Advantages
Direct compatibility with 330400 and 330425 accelerometers
The most important characteristic of 16925-30 is not its physical length. It is its intended interface. Bently Nevada documentation identifies the 16925-XX cable family specifically for the 330400 and 330425 accelerometers. This makes it much more appropriate for replacement work than selecting a generic three-wire cable and fabricating an unverified connector assembly.
Shielded three-conductor construction
The cable uses three 22 AWG conductors with shielding. The accelerometer installation documentation states that the accelerometers require three conductors and recommends shielded cable to minimize noise interference. That matters in machinery-monitoring installations where low-level acceleration signals share cable routes with motors, drives, excitation circuits, or other electrically noisy equipment.
30-foot field length
The -30 suffix corresponds to a 30-foot cable length, approximately 9.0 meters. This is a standard length within the 16925 family, rather than an arbitrary aftermarket length designation.
Correct connector and termination arrangement
One end uses a 3-socket plug for the accelerometer, while the opposite end terminates in field wiring lugs. This arrangement follows the documented connection architecture for the 330400/330425 accelerometers and allows the monitor-side wiring to be terminated according to the particular monitoring system installation.
Suitable for legacy machinery-monitoring maintenance
The 16925-30 is particularly useful when maintaining existing vibration-monitoring installations. Cable replacement is often overlooked during troubleshooting, yet damaged connectors, poor terminations, shield problems, and mechanical deterioration can produce symptoms that resemble sensor or monitor faults. Replacing the cable with the correct series and termination configuration can remove that uncertainty from the diagnostic process.
Related Products
- Bently Nevada 330400 — Accelerometer designed for machinery vibration measurement; compatible with the 16925-XX interconnect cable family.
- Bently Nevada 330425 — Accelerometer variant using the same documented 16925-series cable interface.
- Bently Nevada 130539-30 — 30-foot alternative cable family using 18 AWG conductors and a splash-resistant elastomer boot; it is not simply the same cable with a different part number.
- Bently Nevada 16710-30 — 30-foot armored interconnect cable using 22 AWG shielded conductors; intended where additional mechanical protection is required.
- Bently Nevada 00531080 — Mating connector associated with the 330400/330425 accelerometer interface.
- Bently Nevada 3300/25 — Dual acceleration monitoring hardware used with applicable accelerometer installations.
- Bently Nevada 3300/26 — RMS dual acceleration input monitor used with compatible acceleration measurement systems.
- Bently Nevada 3500/42 — Proximitor/Seismic Monitor that can be used in applicable acceleration monitoring configurations.
The 130539 and 16710 alternatives differ materially in conductor size and/or mechanical construction, so they should not be selected solely because they have the same nominal cable length.
FAQ
What is the Bently Nevada 16925-30?
It is a 30-foot, 3-conductor shielded interconnect cable from the Bently Nevada 16925 series. Documentation identifies this cable family for the 330400 and 330425 accelerometers.
Is 16925-30 the same as a generic 30-foot sensor cable?
No. The cable has a defined connector and termination arrangement: a 3-socket plug at the accelerometer end and terminal lugs at the monitoring-system end. The conductor count and shielding also form part of the intended interface.
Can I use 16925-30 with a 330400 or 330425 accelerometer?
Yes, this is the documented application of the 16925-XX cable family. Before installation, verify the actual accelerometer part number and connector condition, particularly on older equipment.
Can I substitute 16710-30 for 16925-30?
Not automatically. Both belong to the cable options documented for the 330400/330425 accelerometers, but 16710 is an armored 22 AWG cable while 16925 is the standard shielded 22 AWG cable. Mechanical protection and routing requirements should determine whether the armored version is appropriate.
Can I hot-swap the 16925-30?
A cable is not normally treated as a hot-swappable electronic module. Follow the site’s machinery-monitoring isolation procedure before disconnecting an installed accelerometer cable. If the monitored machine must remain operational, determine the consequences of losing that measurement channel before disturbing the connection.
Does 16925-30 contain firmware or configuration data?
No. It is a passive interconnect cable. It does not contain user logic, firmware, configuration memory, or monitoring-program data.
How should I verify a New Surplus 16925-30 before installation?
Check the part-number marking, cable length, connector condition, conductor count, shield continuity, terminal-lug condition, and physical jacket condition. For a critical vibration channel, an insulation/continuity check and verification against the applicable 330400/330425 wiring diagram are sensible incoming-inspection steps. The supplier’s actual warranty and condition statement should also be confirmed before purchase.
Procurement Note
For 16925-30, the critical purchasing checks are straightforward: Bently Nevada 16925 series, 30 ft length, 3-conductor shielded construction, 22 AWG conductors, 3-socket accelerometer connector, and terminal-lug monitor termination. Do not accept a listing that describes this part only as a generic “sensor cable.” The technical documentation gives the 16925 family a specific application and interface.
One source incorrectly describes the part as a two-conductor, 18 AWG, 300 V cable. That conflicts with the Bently Nevada 330400/330425 documentation, which identifies 16925 as a 3-conductor shielded 22 AWG cable. For engineering and procurement purposes, the latter documentation should take precedence.
