Technical Specifications Breakdown
Key parameters for the 21000-34-00-00-030-03-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Model | 21000 - Proximity Probe Housing Assemblies |
| Probe Option | 34 = 3300 XL 8 mm probe with connector protector, selectable hazardous area approvals |
| Probe Cable Length | 00 = Probe cable not required |
| Standoff Adapter | 15 = 1.5 in |
| Probe Penetration | 050 = 5.0 in |
| Fitting Option | 03 = One 3/4-14 NPT plug, One 3/4-14 to 1/2-14 NPT reducer, One cable seal grip with grommets for cable sizes: 1/8 to 3/16 inches, 1/4 to 5/16 inches, 5/16 to 3/8 inches |
| Mounting Thread Option | -02 - 3/4-14 NPT |
| Material | 21000 Aluminum body with 304 stainless steel sleeve |
| Weight | 1.1 kg (2.4 lb) typical, without fittings |
Industry Applications
The 21000-34-00-00-030-03-02 is rated explosion proof for hazardous areas and certified as CSA Type 4 enclosure, fully compliant with API 670 Standard. Using a certified housing avoids costly safety violations and retrofit expenses.

Installation & Setup Guidance
Mount the housing using the 3/4-14 NPT mounting thread. Select the appropriate cable seal grip grommet from the provided sizes (1/8 to 3/16 inches, 1/4 to 5/16 inches, or 5/16 to 3/8 inches) to match your cable diameter. Ensure the standoff adapter (1.5 in) is correctly positioned to achieve the required probe gap. Proper installation reduces the risk of false readings and maintenance callouts.
Maintenance & Reliability
Inspect the housing periodically for signs of corrosion or damage, especially in harsh environments. The aluminum body with 304 stainless steel sleeve offers corrosion resistance, minimizing replacement costs. Check O-rings and thread seal integrity during routine shutdowns to maintain the explosion-proof rating.
Cost-Effective Protection for Critical Machinery
When protecting rotating assets, the housing assembly is a small but vital investment. The Bently Nevada 21000-34-00-00-030-03-02 Proximity Probe Housing Assembly provides a rugged, certified enclosure for proximity probes in hazardous areas. Its robust design reduces unplanned downtime by shielding the probe from harsh environments, delivering long-term operational ROI.

Selection Guide & Purchasing Advice
When ordering the 21000-34-00-00-030-03-02, verify the probe cable length option (00 = not required) and standoff adapter length (15 = 1.5 in) match your application. AutoDCSTech stocks this assembly as new and original in factory packing with a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21000-34-00-00-030-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
