Technical Specifications Breakdown
Key parameters for the 21000-34-00-15-050-03-02 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 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 1.5 in standoff adapter and 5.0 in probe penetration allow precise positioning for measuring shaft vibration and thrust position. Its CSA Type 4 enclosure rating and API 670 compliance make it suitable for hazardous area installations where safety and reliability are paramount.

Installation & Setup Guidance
When installing the 21000-34-00-15-050-03-02, ensure the mounting thread (3/4-14 NPT) is properly sealed to maintain the explosion-proof rating. The standoff adapter must be ordered if the probe penetration is not -00. Use the provided cable seal grip with the appropriate grommet size for your cable (1/8 to 3/16 inches, 1/4 to 5/16 inches, or 5/16 to 3/8 inches). Torque all fittings to manufacturer specifications to avoid leakage.
Maintenance & Reliability
Periodically inspect the housing assembly for signs of corrosion or damage, especially in corrosive environments. Verify that all O-rings and seals are intact to maintain the CSA Type 4 enclosure rating. The aluminum body with 304 stainless steel sleeve offers resistance to environmental stress. No internal disassembly is required for routine checks.
Robust Protection for Critical Vibration Monitoring
The Bently Nevada 21000-34-00-15-050-03-02 is a precision-engineered proximity probe housing assembly designed for demanding industrial environments. It provides a secure, explosion-proof enclosure for a 3300 XL 8 mm probe with connector protector, ensuring reliable vibration and position measurement in hazardous areas. This assembly is built to withstand harsh conditions while maintaining measurement integrity.

Compatibility & Integration
This assembly is designed for use with Bently Nevada 3300 XL 8 mm proximity probes and compatible monitoring systems. The selectable hazardous area approvals allow flexibility for different site classifications.
Selection Guide & Purchasing Advice
When selecting the 21000-34-00-15-050-03-02, verify that the probe cable length (00 = not required) and standoff adapter (1.5 in) meet your installation requirements. For applications needing different probe cable lengths or standoff adapters, consult the Bently Nevada ordering guide. 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 | 21000-34-00-15-050-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
