21000-33-10-00-070-04-02 | Bently Nevada 3300 XL 8mm Probe

The Bently Nevada 21000-33-10-00-070-04-02 is a Probe Option for industrial control and automation applications.

Bently Nevada 21000-33-10-00-070-04-02 is a proximity probe housing assembly built for reliable, repeatable measurement in rotating machinery protection. It combines a 3300 XL 8mm probe with connector protector, a 1.0 m (39 in) probe cable, and a 7.0 in probe penetration in a single factory-assembled unit.

What engineering problems does this housing assembly solve?

Externally mounted probes face contamination, mechanical damage, and unstable mounting. This assembly addresses those pain points with an aluminum body and 304 stainless steel sleeve, plus a dome cover that screws into the housing body. Threaded ports accept conduit connections, while O-rings and a thread seal help maintain enclosure integrity. The fitting option provides one 3/4-14 NPT plug only, and the mounting thread is 3/4-14 NPT.

Key specifications of the 21000-33-10-00-070-04-02

• Probe option: 3300 XL 8mm probe with connector protector
• Probe cable length: 1.0 m (39 in)
• Probe penetration: 7.0 in
• Standoff adapter: none (00)
• Fitting option: one 3/4-14 NPT plug only
• Mounting thread: 3/4-14 NPT
• Maximum (C) + (D) with visible probe: 17.0 in (43.18 cm)
• Maximum (C) + (D) dimension: 32.9 in (83.5 cm)
• Weight: 1.1 kg (2.4 lb) typical, without fittings
• Material: aluminum body with 304 stainless steel sleeve

How does this assembly support hazardous-area installations?

The 21000 series is available with Canadian Standards Association (CSA) approvals and is rated explosion proof for hazardous areas. You can order hazardous area approved proximity probes with 21000 aluminum housings for intrinsically safe applications. Both housings are certified as CSA Type 4 enclosures and fully compliant with API 670 for externally mounted proximity probe housings. Please verify the specific approval for your order with TenBN before purchase.

Where is This unit typically used?

This housing assembly suits condition monitoring on compressors, pumps, motors, and gas turbines where a 3300 XL 8mm probe must be externally mounted. The 7.0 in penetration and 1.0 m cable support direct routing to junction boxes. The absence of a standoff adapter keeps the profile compact for tight mounting locations.

What should buyers verify before ordering?

Confirm the probe penetration, cable length, and fitting option match your machine drawing. The mounting thread option 3/4-14 NPT must be ordered if the standoff adapter length option is not -00. For genuine Bently Nevada original spare parts and authorized distributor support, contact TenBN for pricing and availability.