Bently Nevada 3500/33 16-Channel Relay Module | Replacement, Equivalent & Selection Guide
The Bently Nevada 3500/33 is a 16-channel relay output module designed for use within the Bently Nevada 3500 Series machinery protection system. It provides configurable relay outputs for alarm and trip functions in critical rotating machinery monitoring applications. Konmask.com supplies genuine and compatible-grade 3500/33 modules with full traceability and quality verification.
Technical Specifications
- Model: 3500/33
- Brand: Bently Nevada (Baker Hughes)
- Function: 16-Channel Relay Output Module
- Number of Relay Channels: 16
- Relay Type: Form-C (SPDT) dry contact relays
- Contact Rating: 2 A @ 30 VDC / 0.5 A @ 125 VAC (resistive load)
- System Compatibility: Bently Nevada 3500 Series Rack
- Module Slot: Occupies one slot in the 3500 rack
- Configuration: Via System 1 software or rack keyswitch
- Power Supply: Supplied by 3500 rack backplane
- Operating Temperature: 0 °C to +65 °C
- Certifications: CE, SIL 1 capable (system-level)
- Weight: Approx. 750 g
- Part Number / SKU: 3500/33
Compatible Replacement & Equivalent Models
When the original 3500/33 is unavailable or cost-prohibitive, the following models may serve as functional equivalents or replacements depending on your system configuration. Always verify electrical and firmware compatibility before substitution.
- 3500/33-01-00 — Standard version with standard relay configuration; direct drop-in for most 3500 racks
- 3500/33-02-00 — Enhanced version with additional diagnostic features; backward-compatible in most applications
- 3500/32 — 4-Channel Relay Module; suitable when fewer relay outputs are required; same rack form factor
- 3500/34 — 4-Channel Relay Module (TMR-capable); for triple-modular redundancy architectures
- Emerson / GE Bently Nevada OEM Equivalents — Post-acquisition rebranded modules with identical firmware and pinout
Note: Konmask.com can assist with cross-reference verification. Contact support@konmask.com with your rack configuration details.
Why Choose the Original 3500/33 Model
- System-Certified Integration: Factory-validated for the Bently Nevada 3500 rack — no firmware conflicts or relay mapping issues
- Full 16-Channel Capacity: Maximizes relay output density per rack slot, reducing hardware footprint
- Proven Reliability: Deployed in thousands of turbine, compressor, and pump protection systems globally
- Software Compatibility: Fully configurable via System 1 Evolution and legacy System 1 software
- Long Service Life: Designed for continuous 24/7 operation in harsh industrial environments
- OEM Support Path: Genuine modules retain full Baker Hughes / Bently Nevada service and warranty eligibility
Typical Applications
- Gas turbine and steam turbine protection systems
- Centrifugal and reciprocating compressor monitoring
- Pump and motor vibration alarm/trip relay outputs
- Petrochemical plant machinery protection racks
- Power generation facility critical equipment monitoring
- Offshore platform rotating equipment safety systems
System Compatibility
- Rack: Bently Nevada 3500 Series (all standard rack configurations)
- Software: System 1 Evolution v6.x+, System 1 v5.x (legacy)
- Communication: Compatible with 3500/22M Communication Gateway for Modbus, Profibus, and Ethernet/IP integration
- Power: 3500/15 Power Supply Module (standard or redundant)
- Not Compatible With: 3300 Series racks or standalone relay panels without 3500 backplane
Selection Guide
Use the following criteria to determine whether the 3500/33 is the right module for your application:
- Need 16 relay outputs per slot? → 3500/33 is the optimal choice
- Need only 4 relay outputs? → Consider 3500/32 to reduce cost
- Require TMR (Triple Modular Redundancy)? → Evaluate 3500/34 instead
- Integrating with DCS via fieldbus? → Pair with 3500/22M Communication Gateway
- Replacing a failed module in an existing rack? → Match the exact part suffix (e.g., -01-00 vs -02-00) to ensure firmware compatibility
- Budget-constrained project? → Contact Konmask.com for certified-equivalent sourcing options
Quality Assurance & Sourcing
- Source: Authorized distribution channels and verified surplus inventory
- Inspection: Each unit undergoes visual inspection, functional verification, and label authenticity check
- Traceability: Full lot traceability documentation available on request
- Packaging: Anti-static ESD packaging with original or equivalent protective materials
- Warranty: 12-month limited warranty against manufacturing defects
- Counterfeit Prevention: Konmask.com maintains a strict zero-tolerance policy on counterfeit components
How to Order
- Confirm your rack model and available slot position
- Identify required part suffix (e.g., 3500/33-01-00)
- Contact Konmask.com via email or phone with your PO or RFQ
- Receive quotation with lead time and shipping options within 24 hours
- Approve quotation → payment → dispatch with tracking
📧 support@konmask.com | 📞 +0086 19859288691
Replacement & Compatibility FAQ
Q: Can the 3500/33 replace a 3500/32 in the same rack slot?
A: Yes, physically and electrically compatible, but you will have 12 unused relay channels. Reconfigure via System 1 software after installation.
Q: Is the 3500/33 compatible with the 3500/20 rack?
A: Yes, the 3500/33 is compatible with all standard 3500 Series racks including the 3500/20 main rack.
Q: Can I use a 3500/33-02-00 to replace a 3500/33-01-00?
A: In most cases yes, but verify firmware version compatibility with your System 1 software version before substitution.
Q: Does Konmask.com provide testing reports for used/surplus units?
A: Yes. Functional test reports are available upon request for surplus inventory units.
Q: What is the lead time for a new 3500/33?
A: In-stock units ship within 1–3 business days. For new OEM orders, lead time is typically 8–16 weeks. Contact us for current availability.
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Contact: support@konmask.com | +0086 19859288691
