Bently Nevada 330930-065-04-BR 3300 NSv Extension Cable | Replacement, Equivalent & Selection Guide
The Bently Nevada 330930-065-04-BR is a precision extension cable designed for the 3300 NSv Proximity Transducer System. It serves as the critical signal-transmission link between the proximity probe and the proximitor/driver, maintaining signal integrity in demanding industrial vibration monitoring environments. This page provides full technical specifications, compatible replacement options, and a structured selection guide to help engineers and procurement teams make confident sourcing decisions.
Technical Specifications
- Part Number / SKU: 330930-065-04-BR
- Series: Bently Nevada 3300 NSv Proximity Transducer System
- Type: Extension Cable (Coaxial, Armored)
- Cable Length: 6.5 m (21.3 ft) — suffix “-065” denotes 6.5 m
- Connector Style: Standard BNC / MIL-spec per 3300 NSv system requirements
- Temperature Range: –55 °C to +125 °C (operating)
- Impedance: 50 Ω nominal
- Jacket Material: Stainless steel armored braid (BR suffix)
- Compatibility: Bently Nevada 3300 NSv Proximitor / Seismic Monitor
- Approvals: CE, FM, CSA (per 3300 NSv system certification)
- Weight: ~550 g
- Country of Origin: USA
Compatible Replacement & Equivalent Models
The table below lists functionally equivalent or drop-in replacement cables for the 330930-065-04-BR. Always verify connector type, length, and impedance before substitution.
| Part Number | Brand | Length | Notes |
|---|---|---|---|
| 330930-065-04-CN | Bently Nevada | 6.5 m | CN suffix variant (non-armored) |
| 330930-050-04-BR | Bently Nevada | 5.0 m | Shorter armored version |
| 330930-090-04-BR | Bently Nevada | 9.0 m | Longer armored version |
| 3300 XL NSv Extension Cable | Bently Nevada | Various | Next-gen 3300 XL series compatible |
| CON021 Series | Epro / GE | Custom | Third-party equivalent; verify impedance |
Note: Konmask.com recommends using OEM Bently Nevada cables for safety-critical machinery protection systems. Third-party equivalents should be validated by a qualified engineer.
Why Choose the Original Model
- System-Certified Accuracy: Factory-matched to 3300 NSv Proximitor for guaranteed scale factor and linearity.
- Armored Jacket (BR): Stainless steel braid provides superior protection against mechanical damage, EMI, and harsh plant environments.
- API 670 Compliance: Designed to meet API 670 machinery protection standards for rotating equipment.
- Long-Term Availability: Bently Nevada maintains backward compatibility across the 3300 series platform.
- Traceability: Full OEM documentation and calibration traceability available.
Typical Applications
- Steam turbine and gas turbine shaft vibration monitoring
- Compressor radial and axial position measurement
- Pump and motor bearing vibration surveillance
- Gearbox and expander proximity sensing
- API 670-compliant machinery protection systems
- Petrochemical, power generation, and LNG plant installations
System Compatibility
The 330930-065-04-BR is designed for use within the Bently Nevada 3300 NSv Proximity Transducer System, which includes:
- Probe: 330180 / 330101 / 330103 series NSv probes
- Proximitor: 3300 NSv Proximitor Monitor (e.g., 3300/16-xx-xx-xx)
- System Cable Length: Total probe + extension cable must match Proximitor calibration range (typically 5 m or 9 m system)
⚠️ Important: The total cable system length (probe cable + extension cable) must correspond to the Proximitor’s calibrated range. Mixing lengths from different system configurations will result in measurement errors.
Selection Guide
Use the following criteria to select the correct extension cable for your application:
- Step 1 — Confirm System Series: Verify your Proximitor is 3300 NSv (not 3300 XL or 3500 series).
- Step 2 — Determine Required Length: Measure the distance from probe junction box to Proximitor. The “-065” suffix = 6.5 m. Other lengths: -050 (5 m), -090 (9 m), -135 (13.5 m).
- Step 3 — Select Jacket Type: “-BR” = armored stainless braid (recommended for exposed or high-vibration routing). “-CN” = standard jacket for protected conduit runs.
- Step 4 — Verify Connector Code: “-04” denotes standard connector configuration. Confirm with your Proximitor documentation.
- Step 5 — Check Total System Length: Ensure probe cable + extension cable = system calibration length (5 m or 9 m total).
Quality Assurance & Sourcing
- ✅ Genuine OEM Parts: Konmask.com sources directly from authorized distributors and verified surplus channels.
- ✅ Inspection & Testing: All units undergo visual inspection and continuity/impedance verification before shipment.
- ✅ Documentation: Certificate of conformance and original packaging available upon request.
- ✅ Warranty: 12-month warranty against manufacturing defects.
- ✅ Export Compliance: EAR/ECCN classification reviewed; export documentation provided for international orders.
How to Order
- Confirm part number: 330930-065-04-BR
- Specify quantity and required delivery timeline.
- Contact us via the form below or email support@konmask.com.
- Receive quotation within 1 business day.
- Payment via T/T, PayPal, or credit card. DHL / FedEx international shipping available.
Replacement & Compatibility FAQ
Q: Can I use a 330930-065-04-BR with a 3300 XL Proximitor?
A: No. The 3300 NSv and 3300 XL systems use different scale factors. Use 330930 XL series cables for XL Proximitors.
Q: What is the difference between the -BR and -CN suffix?
A: “-BR” indicates a stainless steel armored braid jacket for mechanical protection. “-CN” is a standard unarmored jacket suitable for conduit-protected installations.
Q: Can I extend the cable beyond 6.5 m by adding another extension?
A: No. The total system cable length is fixed by the Proximitor calibration. Adding extra cable will shift the gap voltage and introduce measurement error.
Q: Is this cable compatible with the Bently Nevada 3500 series?
A: No. The 3500 series uses a different transducer system. Contact us for 3500-compatible cable options.
Q: Do you offer expedited shipping?
A: Yes. DHL Express and FedEx Priority options are available. Contact us for lead time confirmation.
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