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21000-28-05-40-026-04-02

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The Bently Nevada 21000-28-05-40-026-04-02 is an aluminum probe housing with 3300 XL 8mm probe, 0.5m cable, 4.0" standoff, 2.6" penetration, and 3/4-14 NPT threads.
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Technical specifications for 21000-28-05-40-026-04-02

  • Manufacturer:
    Bently Nevada
  • Part Number:
    21000-28-05-40-026-04-02
  • Product Family:
    21000, 24701, and 164818 Proximity Probe Housing A
  • Product Type:
    Aluminum Probe Housing
  • Stock:
    3
  • Probe Cable Length (B):
    05 = 0.5 meter (20 inches)
  • Standoff Adapter (C):
    40 = 4.0 inches (order in 0.5 in increments)
  • Probe Penetration (D):
    026 = 2.6 inches (order in 0.1 in increments)
  • Fittings (E):
    04 = One 3/4-14 NPT plug only
  • Mounting Thread (F):
    02 = 3/4-14 NPT
  • Housing Material:
    Aluminum
  • Enclosure Rating:
    CSA Type 4, Explosion-proof
  • API Compliance:
    API 670 Standard
  • Weight:
    1.05 kg
  • Estimated shipping dimensions:
    30.5x8.5x8.5cm
  • Tariff Code:
    8473309000
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Application Communication Safety and Compliance

Features:

  • CSA Type 4 certified for hazardous area installations with API 670 compliance.
  • Includes 8mm probe with hazardous area approvals and 0.5m cable.
  • 4.0" standoff and 2.6" penetration for precise probe positioning.
The 21000-28-05-40-026-04-02 features a rugged aluminum housing specifically designed for externally mounting proximity probes in hazardous industrial environments. The housing is CSA Type 4 certified, providing explosion-proof protection for installations in potentially explosive atmospheres. This certification ensures that the 21000-28-05-40-026-04-02 meets stringent safety requirements for use in refineries, chemical plants, and other hazardous locations. The housing includes a dome cover that screws securely into the body, threaded ports for conduit connections, and O-rings for sealing. The aluminum construction offers excellent durability while maintaining a lightweight profile for easy installation.

The 21000-28-05-40-026-04-02 is equipped with a 3300 XL 8mm proximity probe (option 28) featuring selectable hazardous area approvals for intrinsically safe applications. The probe includes a 0.5-meter (20-inch) cable length, providing flexibility for connection to the monitoring system. The 21000-28-05-40-026-04-02 is fully compatible with the 3300 XL 8mm Proximity Transducer System and is interchangeable with standard 3300 series components. This integration eliminates the need for separate probe and housing procurement, simplifying the ordering process.

The 21000-28-05-40-026-04-02 provides precision adjustable mounting with a 4.0-inch standoff adapter (option C) and a 2.6-inch probe penetration (option D). The standoff adapter allows the housing to be positioned at the optimal distance from the machine case, while the probe penetration determines how far the probe extends toward the target surface. The 21000-28-05-40-026-04-02 features a 3/4-14 NPT mounting thread (option F:02) and includes a single 3/4-14 NPT plug fitting (option E:04). For probe penetration lengths greater than 300mm (12 inches), additional sleeve support is required.

The 21000-28-05-40-026-04-02 Bently Nevada Aluminum Probe Housing may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

Bently Nevada 21000-28-05-40-026-04-02 Aluminum Probe Housing Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 21000-28-05-40-026-04-02 Aluminum Probe Housing Specs

General

  • Manufacturer GE / Bently Nevada
  • Model 21000-28-05-40-026-04-02
  • Condition New Original ready stock
  • Product Family 21000-16-10-15-102-03-02,21000-16-10-15-114-03-02,21000-00-00-00-000-00-02
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Turbomachinery Diagnostics: Protecting probes that measure radial vibration, axial thrust position, and speed/keyphasor metrics on industrial steam turbines, gas turbines, and large compressors.
  • Hydroelectric & Thermal Power Plants: Installed on generator bearings and cooling pump shafts to provide continuous structural health monitoring.
  • Petrochemical & Oil Refineries: Guarding critical 3300 XL proximity sensors against process fluids, lubricants, and high mechanical forces on large centrifugal pumps.
  • External Maintenance Access: Used specifically when engineers need to adjust the probe gap or swap out an extension cable from the outside of the machine casing without forcing a complete machine teardown or shutdown.
  • Internal Transducer Routing: The internal 0.5-meter 3300 XL coaxial cable connects directly to the reverse-mount probe tip inside the stainless steel sleeve.
  • Conduit Port Connectivity: The housing body features dual threaded ports (configured via the -04 option with a single 3/4-14 NPT plug) allowing for the installation of rigid or flexible industrial electrical conduits.
  • Field Wiring Termination: The external extension cable exits the sealed dome enclosure through the conduit and runs back to a remote Proximitor Sensor (signal conditioner). This Proximitor translates the raw eddy-current voltage into standard machine metrics for monitoring networks like the Bently Nevada 3500 Machinery Protection System or modern condition-monitoring host software.
  • API 670 Compliance: Fully satisfies the American Petroleum Institute (API) 670 Standard for machinery protection systems, which dictates structural rigidity, spacing, and probe mounting safety.
  • North American Standards (CSA/FM): Certified for Class I, Division 1 and 2, Groups C and D; Class II, Groups E, F, and G environments.
  • ATEX / IECEx Zones: Approved for Zone 0, Zone 1, and Zone 2 hazardous gas and dust locations when wired through appropriate safety barriers.
  • Environmental Enclosure Rating: Features a CSA Type 4 (equivalent to NEMA 4 or IP66) weatherproof rating. The threaded dome cover and high-performance internal O-rings completely isolate internal electrical contacts from rain, high-pressure water jets, oil splash, and dust.
Description
The Bently Nevada 21000-28-05-40-026-04-02 is an aluminum proximity probe housing assembly designed for externally mounting proximity probes in machinery monitoring applications. This housing provides a robust, explosion-proof enclosure for the probe, protecting it from harsh industrial environments.

The Bently Nevada 21000-28-05-40-026-04-02 features a 3300 XL 8mm probe with selectable hazardous area approvals (option 28). The 21000-28-05-40-026-04-02 includes a 0.5-meter (20-inch) probe cable length and a 4.0-inch standoff adapter (option C). The 21000-28-05-40-026-04-02 has a probe penetration of 2.6 inches (option D:026).

The Bently Nevada 21000-28-05-40-026-04-02 features a 3/4-14 NPT mounting thread (option F:02) and a single 3/4-14 NPT plug fitting (option E:04). The 21000-28-05-40-026-04-02 is constructed from aluminum, providing a lightweight yet durable solution for external probe mounting.

The Bently Nevada 21000-28-05-40-026-04-02 is rated for hazardous area installations with CSA explosion-proof certification. The 21000-28-05-40-026-04-02 is designed for use with 3300 XL 8mm proximity probes and is fully interchangeable with other 21000 series housing components.
Alternative Names
21OOO-28-O5-4O-O26-O4-O2 2I000-28-05-40-026-04-02 21000 28 05 40 026 04 02 21000-28-10-00-098-04-02 21000-28-10-00-217-04-02 21000-16-10-15-057-03-02 21000-16-10-15-102-03-02 21000-16-10-15-114-03-02
Technical notes
The Bently Nevada 21000-28-05-40-026-04-02 is an aluminum probe housing with 3300 XL 8mm probe (0.5m cable), 4.0" standoff, 2.6" penetration, 3/4-14 NPT threads, and a single NPT plug. CSA Type 4, API 670 compliant for hazardous areas. Suitable for vibration/position monitoring on rotating machinery.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What is the primary function of the 21000-28-05-40-026-04-02?
It externally mounts a 3300 XL 8mm probe with 4.0" standoff and 2.6" penetration for vibration/position monitoring.
What are the key specifications of the 21000-28-05-40-026-04-02?
Aluminum housing, 0.5m cable, 3/4-14 NPT threads, CSA Type 4, API 670 compliant, with a single NPT plug fitting.
What probe is included with the 21000-28-05-40-026-04-02?
It includes a 3300 XL 8mm probe with selectable hazardous area approvals (option 28).
What mounting thread does the 21000-28-05-40-026-04-02 use?
It uses 3/4-14 NPT mounting threads (option F:02) for standard industrial installation.

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