21000-28-05-15-028-04-02 – Bently Nevada | Proximity Probe

Bently Nevada 21000-28-05-15-028-04-02 Proximity Probe Housing – Safe for Hazardous Work

What It Does

A tough probe holder for dangerous industrial spots. Made by Bently Nevada, it follows API 670 rules to keep things safe.

Key Details

Brand: Bently Nevada
Model: 21000-28-05-15-028-04-02 Proximity Probe Housing
Material: Aluminum body + 304 stainless steel sleeve (strong and durable)
Weight: About 1.1 kg (2.4 lb) (without extra parts)
Max Size (C+D): 13.5 in (34.3 mm) (probe IDs hidden with 0.5m cable)

What the Numbers Mean

Model format: 21000-AA-BB-CC-DDD-EE-FF

AA=28: 3300 XL 8mm probe (with choices for safe use in dangerous areas)
BB=05: 0.5m (20in) probe cable
CC=15: 1.5in (38mm) standoff adapter (adds space)
DDD=028: 2.8in probe depth (how far it goes in)
EE=04: Includes 1x 3/4-14 NPT plug (no extra fittings)
FF=02: 3/4-14 NPT mounting thread (needed if CC ≠ “00”)

How to Install

Need 3/4-14 NPT thread (FF=02) because CC=15 ≠ “00”.
If probe depth (CC+DDD) >12in (300mm): Add support near the probe to stop shaking (not needed here, since 1.5+2.8=4.3in <12in).

What It Fits

Works with:

3300 XL 8mm probes (with safe area options)
0.5m cables
Extra conduit parts or standoff adapters (optional)

Certifications

CSA Explosion-Proof: Safe for Class I Div 1/2 (Groups C/D), Class II Div 1/2 (Groups E/F/G), Class III
RoHS: Follows EU 2011/65/EU rules (eco-friendly)
Enclosure: CSA Type 4 (stops dust and water)

What’s Inside

Dome cover (screws onto housing)
Threaded ports for conduit (connects wires)
Probe sleeve (adjustable length)
O-rings (seals tight)
Reverse-mount probe (fits in tight spots)
Thread seal (stops leaks)
Optional: conduit parts, standoff adapter

Download PDF file here:21000-24701-Datasheet