Technical Specifications Breakdown
Key parameters for the 21000-34-00-15-018-03-02 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 | 018 = 1.8 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: Reducing Total Cost of Ownership
The 1.5-inch standoff adapter and 1.8-inch probe penetration allow precise gap setting, minimizing installation time and reducing labor costs. The CSA Type 4 enclosure rating ensures reliable operation in wet or dusty environments, extending service life and lowering replacement frequency.

Installation & Setup Guidance
Mount the housing using the 3/4-14 NPT mounting thread (option -02). Ensure the standoff adapter length matches the required probe clearance. The included fitting kit provides a 3/4-14 NPT plug, a reducer to 1/2-14 NPT, and a cable seal grip with grommets for cable diameters from 1/8 to 3/8 inches. Proper cable sealing prevents moisture ingress, a common cause of premature probe failure.
Maintenance & Reliability
Inspect the O-rings and cable seal grommets annually for signs of wear or cracking. Replace any damaged seals immediately to maintain the explosion-proof rating. The aluminum body with 304 stainless steel sleeve resists corrosion in most industrial environments, reducing the need for frequent replacements.
Cost-Effective Protection for Critical Machinery
Industrial rotating machinery demands reliable vibration monitoring to prevent costly unplanned downtime. The Bently Nevada 21000-34-00-15-018-03-02 proximity probe housing assembly provides a robust, explosion-proof enclosure for 3300 XL 8 mm proximity probes. This assembly directly reduces operational risk by ensuring accurate, continuous measurement in harsh environments. By investing in a certified housing, you avoid the high costs of false trips or missed faults—each of which can exceed thousands of dollars in lost production.

Selection Guide & Purchasing Advice
When ordering the 21000-34-00-15-018-03-02, verify that the probe cable length option (00) matches your installation—this variant does not include a probe cable. For complete system compatibility, pair this housing with a compatible Bently Nevada 3300 XL 8 mm probe. AutoDCSTech stocks this assembly as new and original in factory packing, backed by a 12-month warranty. Please verify current lifecycle status and availability with AutoDCSTech before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21000-34-00-15-018-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
