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Apter Power supplies the original Bently Nevada 21000-28-05-00-056-04-02 for external 3300 XL 8 mm probe protection with 3/4-14 NPT mounting.
This 21000-series aluminum housing assembly supports external mounting and protection of a reverse-mount proximity probe on rotating machinery.
Important Notice: Other probes, cables, fittings, approvals and certificates are not included unless listed in the stock item description.
The housing supports the probe mechanically; the complete transducer loop must still use electrically compatible probe, extension cable and Proximitor Sensor components.
Follow the official Bently Nevada installation documentation and local hazardous-area wiring requirements.
Explosion-proof and hazardous-area acceptance is configuration- and region-specific. Do not rely on the model family alone when approving an installation.
The Bently Nevada 21000-28-05-00-056-04-02 is an aluminum external-mount proximity probe housing assembly configured with a 3300 XL 8 mm probe that supports selectable hazardous-area approvals. Its 0.5 m probe cable, no-standoff arrangement and 5.6 in penetration suit fixed machine-casing installations.
The assembly uses one 3/4-14 NPT plug and a 3/4-14 NPT mounting thread. The housing protects the reverse-mount probe and supports cable routing through threaded conduit ports for machinery vibration, radial-position and phase-reference measurements.





