Bently Nevada 3500/33-01-01 Channel Relay Module | Replacement, Equivalent & Selection Guide
The Bently Nevada 3500/33-01-01 (Part Numbers: 149986-01 + 149992-01) is a Channel Relay Module designed for use within the Bently Nevada 3500 Series machinery protection system. It provides relay output functionality for alarm and trip signal routing in critical rotating machinery monitoring applications.
Technical Specifications
- Manufacturer: Bently Nevada (Baker Hughes)
- Model / SKU: 3500/33-01-01
- Part Numbers: 149986-01 (Module) + 149992-01 (Terminal Block)
- Module Type: Channel Relay Module
- Series: Bently Nevada 3500
- Relay Channels: 4 relay output channels
- Contact Type: Form C (SPDT) relay contacts
- Contact Rating: 5 A @ 250 VAC / 30 VDC
- Power Supply: Supplied via 3500 rack backplane
- Communication: Compatible with 3500 rack communication bus
- Operating Temperature: 0°C to +65°C
- Weight: 1,230 g (approx.)
- Certifications: CE, SIL, FM, CSA (per 3500 system certification)
- Mounting: 3500 Series 19-inch rack slot
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as replacements or equivalents for the 3500/33-01-01. Always verify electrical and firmware compatibility before substitution:
- 3500/33-01-00 – Earlier revision; functionally similar, verify firmware compatibility
- 3500/33-02-00 – Enhanced relay version; check rack slot and wiring compatibility
- 3500/32-01-01 – 4-channel relay module variant; confirm channel mapping
- 3500/40M-01-00 – Proximitor/Seismic Monitor with relay outputs; different input type
- Emerson / GE Relay Output Modules – Third-party equivalents may be available; consult Konmask for cross-reference
Note: Konmask.com supplies both OEM original and verified compatible modules. Contact us for a specific cross-reference.
Why Choose the Original Model
- OEM Guaranteed Compatibility: Plug-and-play with existing 3500 rack infrastructure — no firmware or wiring changes required
- SIL-Rated Safety: Maintains system SIL certification integrity for safety-critical applications
- Proven Reliability: Validated in power generation, oil & gas, and petrochemical environments
- Full Bently Nevada Ecosystem Support: Seamless integration with System 1 software and 3500 rack diagnostics
- Warranty & Traceability: Full OEM traceability and warranty coverage
Typical Applications
- Turbine and compressor machinery protection systems
- Alarm and trip relay output routing in 3500 racks
- Oil & gas upstream/downstream plant protection
- Power generation (steam, gas, hydro turbines)
- Petrochemical and refinery rotating equipment monitoring
- Marine propulsion and offshore platform machinery
System Compatibility
- Rack: Bently Nevada 3500 Series (19-inch, 3-slot or 5-slot rack)
- Software: System 1 (S1) Condition Monitoring Software
- Communication: 3500 rack backplane bus
- Terminal Block: 149992-01 (included / sold as set)
- Compatible Monitors: 3500/40M, 3500/42M, 3500/44M, 3500/45, 3500/50, 3500/60, 3500/70M
Selection Guide
Use the following criteria to confirm the correct relay module for your application:
- Step 1 – Confirm Rack Type: Verify your rack is a Bently Nevada 3500 Series (not 3300 or 1900)
- Step 2 – Check Relay Channel Count: 3500/33 provides 4 relay channels; if more are needed, consider 3500/32 or stacking modules
- Step 3 – Verify Part Number Suffix: -01-01 denotes specific relay configuration; confirm against your existing rack documentation
- Step 4 – Terminal Block: Ensure 149992-01 terminal block is included or available — module and terminal block are sold as a set
- Step 5 – SIL Requirement: If your system requires SIL 2/3 certification, confirm the module revision meets your safety integrity level
- Step 6 – Contact Konmask: Send your rack configuration or existing part number for a free compatibility check
Quality Assurance & Sourcing
- All modules are sourced from authorized distributors or verified surplus channels
- Each unit undergoes visual inspection and functional verification prior to shipment
- Serialized traceability documentation available upon request
- Packaging: Anti-static ESD bag + foam-lined carton for safe international shipping
- Export compliance: HS Code 8537.10 — suitable for global customs clearance
How to Order
- Add the Bently Nevada 3500/33-01-01 (149986-01 + 149992-01) to your cart
- Proceed to checkout and select your preferred shipping method (DHL / FedEx / UPS international available)
- For bulk orders, OEM certificates, or lead time inquiries — contact support@konmask.com
- Typical lead time: In-stock units ship within 1–3 business days
Replacement & Compatibility FAQ
Q: Can the 3500/33-01-00 replace the 3500/33-01-01?
A: In most cases yes, but verify firmware revision compatibility with your 3500 rack configuration manager before swapping.
Q: Is the terminal block 149992-01 included?
A: Yes, this listing covers the complete set: module 149986-01 + terminal block 149992-01.
Q: Do you provide a test report or certificate of conformance?
A: Yes, available upon request for OEM units. Contact us before ordering if required.
Q: Can this module be used in a 3300 Series rack?
A: No. The 3500/33 is exclusively designed for the 3500 Series rack. It is not backward compatible with 3300 Series.
Q: What is the warranty?
A: Konmask offers a 12-month warranty on all OEM original modules. Verified compatible modules carry a 6-month warranty.
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