Bently Nevada 330881-28-04-265-00-02 PROXPAC XL Proximity Transducer Assembly
A self-contained metric PROXPAC XL assembly with an approved 8 mm probe and 265 mm penetration.
Product Profile
Bently Nevada 330881-28-04-265-00-02 is a metric PROXPAC XL proximity transducer assembly. Option 28 selects the 3300 XL 8 mm probe with Multiple Approvals, 04 selects a 40 mm standoff and 265 defines the probe penetration.
The 00 fitting option supplies plugs and washers without conduit fittings, while 02 selects the 3/4-14 NPT mounting thread required with the standoff configuration.
Technical Data
System Role
Combines the probe housing and its 3300 XL Proximitor sensor into one self-contained assembly.
Permits external access and adjustment of the proximity probe while removing the need for a separate Proximitor housing.
Field wiring connects between the monitor and the PROXPAC XL assembly.
The complete metric ordering code controls probe approval, standoff, penetration, fittings and mounting thread.
Compatibility & Service
- Measure and record the installed penetration, standoff and target gap before loosening the assembly.
- Confirm conduit and mounting-thread compatibility before ordering replacement hardware.
- Protect the housing seal, probe tip and integrated electronics during removal and storage.
- Verify gap voltage, field wiring, monitor response and mechanical clearance after installation.
Applications
- External proximity-probe access on rotating machinery.
- Compact installations where a separate extension cable and Proximitor enclosure are undesirable.
- Weather-exposed or industrial locations using the specified housing and conduit arrangement.
- Replacement of an installed metric PROXPAC XL assembly with the same penetration geometry.
FAQ
Q01Why is 265 mm a controlled dimension on 330881-28-04-265-00-02?+
It defines how far the probe assembly reaches toward the target and therefore affects mounting, gapping and mechanical clearance.
Q02Can the 214 mm PROXPAC XL variant replace this 265 mm execution?+
Not without rechecking the machine-case geometry and target reach; the 51 mm penetration difference is a direct mechanical change.
Q03Why does this assembly use the 02 mounting-thread option?+
The documented metric ordering matrix specifies 3/4-14 NPT when a standoff adapter is ordered.
Q04What conduit hardware is included with the 00 fittings option?+
The matrix specifies no fittings, with two plugs and two washers; any required conduit transition must be engineered separately.
Q05What field checks are essential after PROXPAC XL installation?+
Confirm penetration, thread engagement, housing sealing, target clearance, static gap voltage, monitor response and cable/conduit strain relief.

