Introduction
The Bently Nevada 330130-045-03-05 is a 3300 XL Standard Extension Cable engineered for use within Bently Nevada proximity transducer systems. It provides the connection between a compatible proximity probe and Proximitor Sensor, allowing the sensing point to be positioned at the machine while the signal-conditioning electronics remain at a suitable installation location.
This configuration specifies a 4.5 m (14.8 ft) cable length, an armored cable with connector protectors, and a multiple-approval configuration. The combination makes it a practical choice for industrial machinery installations where both cable routing flexibility and additional mechanical protection are important.
The 3300 XL extension cable is more than a simple length extension. Its electrical characteristics form part of the complete proximity transducer system. The probe, extension cable, and Proximitor must be selected with compatible electrical lengths so that the complete measurement chain operates as intended.
For maintenance and retrofit work, the 330130-045-03-05 is especially useful when an existing 3300 XL installation requires a 4.5-meter armored extension cable with connector protection and CSA, ATEX, and IECEx approvals.
Technical Specifications
The part number itself provides useful configuration information. 330130 identifies the 3300 XL extension-cable family, 045 represents the 4.5-meter length, 03 identifies the armored cable and connector-protector configuration, and 05 corresponds to the multiple-approval option.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Part Number | 330130-045-03-05 |
| Product Type | 3300 XL Standard Extension Cable |
| Cable Family | 330130 |
| System | 3300 XL Proximity Transducer System |
| Cable Length | 4.5 m / 14.8 ft |
| Length Code | 045 |
| Cable Option | 03 – Armored cable with connector protectors |
| Approval Option | 05 – Multiple approvals |
| Cable Construction | 75 Ω triaxial cable |
| Insulation | FEP |
| Armor | FEP/PFA-coated protective armor |
| Connector Protection | Fluorosilicone connector protector |
| Cable Diameter | Approximately 3.7 mm maximum for base cable |
| Armored Diameter | Approximately 7.7 mm maximum |
| Armor Ferrule Diameter | Approximately 10.2 mm maximum |
| Minimum Bend Radius | 25.4 mm / 1.0 in |
| Approximate Cable Weight | About 34–37 g/m |
| Approximate Cable-Only Weight | Approximately 0.15–0.17 kg for 4.5 m |
| Product Shipping Weight | Packaging-dependent; some listings specify approximately 2 kg |
| Typical Function | Proximity probe signal extension |
| Typical Measurement | Shaft vibration, displacement and position |
| Approval Configuration | CSA / ATEX / IECEx |
| Typical Installation | Industrial rotating machinery |
Applications
Turbine Shaft Monitoring
The 330130-045-03-05 can be installed as part of a proximity measurement channel on steam and gas turbines. The 4.5-meter length provides useful routing distance between shaft-mounted sensing locations and the monitoring electronics.
Compressor Condition Monitoring
High-speed compressors often require proximity measurements for shaft vibration and displacement. The armored extension construction offers additional protection when cables must pass through mechanically active equipment areas.
Generator Monitoring
Generators can use multiple proximity channels around bearing and shaft locations. A 4.5-meter extension provides installation flexibility while maintaining the defined electrical characteristics of the 3300 XL system.
Pump and Motor Applications
Industrial pumps and motors can benefit from continuous shaft-vibration monitoring. The cable allows the proximity probe to remain close to the measurement point while the Proximitor can be installed in a more accessible location.
Bearing and Shaft Displacement Measurement
When paired with a compatible 3300 XL proximity probe, the extension cable forms part of the signal path used for relative shaft vibration, radial displacement, axial position, or other supported proximity measurements.
Machinery Protection Systems
The cable can be incorporated into a complete machinery-protection channel involving the proximity probe, extension cable, Proximitor Sensor, and monitoring hardware.
Hazardous-Area Installations
The -05 multiple-approval configuration is intended for installations where applicable CSA, ATEX, and IECEx approvals are required. Actual hazardous-area suitability depends on the complete installed system and applicable installation requirements.
Maintenance Replacement
The exact 330130-045-03-05 configuration is useful when replacing an existing 4.5-meter armored extension cable and maintaining the original system architecture.
Advantages
Exact 4.5-Meter Configuration
The 4.5 m / 14.8 ft length offers a useful middle ground between short local connections and much longer cable runs. It can simplify routing around machinery frames, bearing housings, junction areas, and monitoring cabinets.
Armored Cable Protection
The -03 configuration incorporates protective armor and connector protectors, providing additional mechanical protection compared with an unprotected cable arrangement.
Connector Protection
The connector-protector option adds protection around the cable connection, an important consideration for industrial installations where connectors may be exposed to vibration, accidental contact, or difficult routing conditions.
75 Ω Triaxial Construction
The 75 Ω triaxial design provides the electrical architecture required by the 3300 XL proximity-transducer system and helps maintain a controlled signal path between the probe and Proximitor.
FEP Insulation
FEP insulation provides a durable dielectric layer suitable for industrial instrumentation applications and contributes to the cable's overall environmental performance.
Multiple Hazardous-Area Approvals
The -05 option provides CSA, ATEX, and IECEx approvals, making this configuration attractive for applications with defined hazardous-area certification requirements.
Defined Electrical Characteristics
The cable's resistance and capacitance characteristics are part of the overall proximity system design. Maintaining the intended electrical length helps preserve correct probe/extension/Proximitor matching.
Compact Installation Profile
Although armored, the cable maintains a relatively compact profile, making it practical for routing through machinery spaces where available clearance is limited.
Strong Replacement Value
For plants already standardized around the 3300 XL platform, using the exact 330130 configuration can simplify spare-parts management and reduce uncertainty during maintenance work.
Technical FAQs
1. What is the Bently Nevada 330130-045-03-05?
It is a 3300 XL Standard Extension Cable designed to connect compatible 3300 XL proximity probes with the associated Proximitor Sensor and monitoring system.
2. How long is the cable?
The cable length is 4.5 meters, equivalent to approximately 14.8 feet.
3. What does the “045” in the part number mean?
The 045 ordering option identifies the 4.5-meter cable length.
4. What does the “03” option specify?
The 03 configuration identifies an armored cable with connector protectors. This provides additional mechanical protection for industrial installations.
5. What does the final “05” mean?
The 05 option corresponds to the multiple-approval configuration, commonly identified with CSA, ATEX, and IECEx approvals for the applicable cable configuration.
6. What type of cable construction is used?
The 330130 family uses a 75 Ω triaxial cable with FEP insulation, with the applicable armored configuration providing additional mechanical protection.
7. What are the dimensions and weight?
The basic cable has a maximum outside diameter of approximately 3.7 mm, while the armored cable reaches approximately 7.67 mm maximum diameter and the armor ferrule approximately 10.2 mm. The minimum bend radius is 25.4 mm. The cable itself weighs roughly 34–37 g/m, giving approximately 0.15–0.17 kg for 4.5 m, excluding connector hardware and packaging.
8. Why is electrical length important?
The probe, extension cable, and Proximitor form a matched electrical system. The electrical length of the proximity probe plus the electrical length of the extension cable must correspond to the required Proximitor configuration. Simply matching physical cable length is therefore not enough when selecting a replacement.
9. What is the minimum bend radius?
The specified minimum bend radius is 25.4 mm (1.0 inch). Installers should avoid tighter bends to reduce mechanical stress and protect the cable assembly.
10. Can this cable replace another 3300 XL extension cable with the same length?
Not automatically. Two 3300 XL extension cables can have the same physical length but different armor, connector-protector, approval, or other configuration options. The complete part number should be checked against the existing probe, Proximitor, installation environment, and certification requirements before substitution.
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