21000-16-05-00-115-03-02 | Bently Nevada 3300 XL 8 mm Probe

The Bently Nevada 21000-16-05-00-115-03-02 is a Probe Option for industrial control and automation applications.

Bently Nevada 21000-16-05-00-115-03-02 is a proximity probe housing assembly designed for 3300 XL 8 mm probes. It combines a 0.5 m probe cable with a 3/4-14 NPT mounting thread, making it a direct-fit solution for protected probe installations in rotating machinery.

What Is the 21000-16-05-00-115-03-02?

This housing assembly belongs to the Bently Nevada 21000 series, which provides mechanical protection and environmental sealing for proximity probes. The assembly includes a dome cover, threaded conduit ports, a probe sleeve, O-rings, a reverse mount proximity probe, a thread seal, and optional conduit fittings. The aluminum body with 304 stainless steel sleeve balances weight and corrosion resistance.

Key Technical Parameters

• Probe Option: 16 = 3300 XL 8 mm probe
• Probe Cable Length: 0.5 m (20 in)
• Probe Penetration: 11.5 in
• Mounting Thread: 3/4-14 NPT
• Fitting Option: 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 in, 1/4 to 5/16 in, and 5/16 to 3/8 in
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Maximum (C) + (D) Dimension: 13.5 in (34.3 mm)

These parameters determine how the housing fits into a machine casing and how the probe cable exits. The 0.5 m cable length suits short runs to a junction box, while the 11.5 in penetration allows the probe tip to reach the target area inside the housing.

Why Choose This Housing for Reliability?

In vibration monitoring, probe integrity directly affects measurement accuracy. The 21000 housing protects the probe from mechanical damage, moisture, and contaminants. Its CSA Type 4 enclosure rating and explosion-proof certification for hazardous areas make it suitable for demanding environments. The assembly is also fully compliant with API 670 for externally mounted proximity probe housings.

For MRO buyers, using a genuine Bently Nevada housing reduces the risk of fit issues and signal degradation. TenBN authorized distributor supplies genuine and compatible Bently Nevada spare parts with fast global shipping from China.

Installation and Compatibility Notes

The 3/4-14 NPT mounting thread must be ordered when the standoff adapter length option is not -00. This model has no standoff adapter (00), so the mounting thread option -02 is required. The fitting option includes a cable seal grip with grommets for three cable size ranges, which helps maintain the enclosure rating after cable entry.

The housing is compatible with 3300 XL 8 mm probes. For hazardous area applications, order the appropriate intrinsically safe probe with the 21000 aluminum housing. Always follow the manufacturer’s safety manual for installation in classified locations.

Buyer Checklist Before Ordering

Verify that the probe penetration (11.5 in) matches your machine casing depth. Confirm the cable length (0.5 m) reaches your junction box without strain. Check that the mounting thread (3/4-14 NPT) matches the port on your equipment. Ensure the fitting option suits your cable diameter. Please verify current lifecycle status and availability with TenBN before ordering.