The Bently Nevada 21000-28-05-00-050-03-02 is an aluminum proximity probe housing assembly with a 3300 XL 8mm probe, 0.5m cable, and 5.0-inch probe penetration. It features explosion-proof certification and 3/4-14 NPT mounting threads for hazardous area monitoring.
Features and benefits
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Explosion-proof aluminum housing – Provides safe operation in hazardous areas (CSA Class I, II, III).
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3300 XL 8mm reverse mount probe – Enables precise vibration and position measurement.
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0.5m probe cable length – Offers flexible installation in space-constrained machinery.
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5.0-inch probe penetration – Allows deeper target reach without additional support.
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3/4-14 NPT mounting thread – Ensures robust and standard-compliant attachment.
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Selectable hazardous area approvals – Supports intrinsically safe applications per API 670.
FAQ
Q1: What probe type is included in the 21000-28-05-00-050-03-02 assembly?
A1: It includes a 3300 XL 8mm reverse mount probe with selectable hazardous area approvals.
Q2: What is the probe cable length of this model?
A2: The cable length is 0.5 meters (20 inches).
Q3: Is the 21000-28-05-00-050-03-02 housing explosion-proof certified?
A3: Yes, the aluminum housing is CSA certified explosion-proof for Class I, II, III hazardous areas.
Q4: What mounting thread does this assembly use?
A4: It uses a 3/4-14 NPT mounting thread.
Q5: What is the probe penetration length (Option D) for this part number?
A5: The probe penetration is 5.0 inches (050 in the ordering code).






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