Bently Nevada 21000-27-05-00-040-03-02 Proximity Probe Housing Assembly

Aluminum external-mount housing with approved 3300 XL NSv probe, 0.5 m lead and 4.0 in penetration.

Product Overview

Bently Nevada 21000-27-05-00-040-03-02 is an all-metal proximity probe housing assembly for externally mounting a reverse-mount probe through a machine casing. The configured assembly uses a 3300 XL NSv probe with selectable hazardous-area approvals, a 0.5 m lead, no standoff adapter, and 4.0 in nominal probe penetration.

Option 03 supplies a 3/4-14 NPT plug, a 3/4-14 to 1/2-14 NPT reducer and a cable seal grip, while option 02 specifies a 3/4-14 NPT mounting thread. The aluminum housing and stainless-steel sleeve protect and support the probe installation.

Commercial Status

Verified Technical Data

System Fit and Applications

Compatibility and Procurement Checks

• Confirm the corrected three-digit penetration code 040; the official 21000 ordering format requires DDD.
• Verify the included option 27 NSv probe, 0.5 m lead and selectable approval requirements against the installed monitoring system.
• Check the 3/4-14 NPT machine mounting interface and available space for the aluminum housing, dome cover and conduit fittings.
• Confirm the option 03 cable seal grip accepts the actual cable diameter and that the reducer and plug match the conduit design.
• Verify 4.0 in nominal penetration plus the ±0.5 in adjustment range against the machine casing and target location.
• Review the matching NSv Proximitor Sensor, extension cable, target material and total electrical system length.

Lifecycle Note

The official housing datasheet lists the 21000 family and this ordering structure but does not state a lifecycle designation for 21000-27-05-00-040-03-02. It notes that newer 31000/32000 housings offer improved flexibility and environmental resistance where an explosion-proof housing is not required.

Frequently Asked Questions