Technical Specifications Breakdown
Key parameters for the 21000-16-10-00-077-03-02 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Probe Option | 16: 3300 XL 8 mm probe |
| Probe Cable Length | 10: 1.0 m (39 in) |
| Standoff Adapter | 00: No standoff adapter |
| Probe Penetration (D) | 077: 7.7 in |
| Fittings | -03: One 3/4-14 NPT plug, one 3/4-14 to 1/2-14 NPT reducer, one cable seal grip with grommets |
| Mounting Thread | 02: 3/4-14 NPT |
| Material | Aluminum body with 304 stainless steel sleeve |
| Weight (typical) | 1.1 kg (2.4 lb), without fittings |
| Hazardous Area Approval | CSA explosion-proof: Class 1 Div 1&2 Groups C,D; Class 2 Div 1&2 Groups E,F,G; Class III; Enclosure Type 4; T5 @ -50 to +40 °C, T4 @ -50 to +80 °C |
Industry Applications and Use Cases
This housing assembly is designed for externally mounted proximity probes on compressors, turbines, pumps, and fans. The 7.7 in probe penetration (option D) suits machines with thicker casings or where the probe must reach deeper into the measurement zone. The CSA explosion-proof rating makes it suitable for oil and gas, chemical, and power generation facilities where flammable gases or dusts are present.

Installation and Setup Guidance
Before installation, verify that the total probe penetration (C plus D) does not exceed 300 mm (12 in) unless sleeve support is added near the probe to prevent resonance. For penetration lengths between 1.0 and 2.0 inches, counter boring the machine case may be necessary to reduce side view or rear view effects. The adjustment range for option D is 13 mm (±0.5 in). Use the provided 3/4-14 NPT mounting thread and fittings (plug, reducer, cable seal grip) to create a sealed conduit connection. Ensure the cable seal grip grommet matches your cable diameter (1/8 to 3/8 inches).
Maintenance and Reliability
Inspect the O-rings and thread seal periodically for wear or damage to maintain the explosion-proof integrity. Verify that the dome cover is tightened securely. The aluminum body with 304 stainless steel sleeve resists corrosion in typical industrial environments. For hazardous area installations, follow all local regulations and the CSA certification conditions (non-incendive circuit per drawing 140979).
Selecting the Right Proximity Probe Housing Assembly
When protecting rotating machinery, the housing assembly is as critical as the probe itself. The Bently Nevada 21000-16-10-00-077-03-02 provides a robust, explosion-proof enclosure for the 3300 XL 8 mm probe, ensuring reliable vibration and position monitoring in hazardous environments. This guide helps you evaluate if this configuration meets your application needs.

Selection Guide and Purchasing Advice
When ordering, confirm that the suffix codes match your machine's requirements: probe type, cable length, penetration depth, fittings, and mounting thread. The 21000-16-10-00-077-03-02 is a specific configuration with a 3300 XL 8 mm probe, 1.0 m cable, no standoff adapter, 7.7 in penetration, and 3/4-14 NPT mounting. If your application differs, consult the ordering guide to select the correct suffix codes. AutoDCSTech stocks this assembly as new and original in factory packing with a 12-month warranty. Please verify current lifecycle status and availability before ordering.
Availability & Condition at AutoDCSTech
| Part Number | 21000-16-10-00-077-03-02 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
Datasheet & Downloads
Specification sheet for 21000-16-10-00-077-03-02. For lead time, condition and price, contact our team.
