Description
1. Product Overview
The Bently Nevada 149986-01 is the primary front-panel module for the 3500/33 16-Channel Relay Module system. This high-density module provides 16 independent relay outputs, designed to perform complex alarm and machinery shutdown logic within the 3500 Machinery Protection System.
Unlike standard 4-channel relay modules, the 149986-01 allows for a significantly higher concentration of discrete outputs in a single rack slot. It is fully programmable through the 3500 Rack Configuration Software, enabling “voting” logic (e.g., 2-out-of-3) and various “AND/OR” combinations based on the status of other monitor modules in the rack.
Key Applications:
- Large-Scale Alarm Annunciation: Managing multiple alarm points across extensive machine trains.
- Safety Instrument Systems (SIS): Integrating machinery protection status into Emergency Shutdown (ESD) architectures.
- Complex Logic Implementation: Handling sophisticated protection logic that requires more than the standard 4 relay channels.
2. Data Sheet
| Feature | Technical Specification |
| Number of Channels | 16 (Independent and programmable) |
| Relay Type | Single-pole, double-throw (SPDT) |
| Logic Support | AND / OR / Voting (1-of-16 to 16-of-16) |
| Compatible I/O Module | 136180-01 (Internal) or 136188-02 (External) |
| Contact Rating | 5A @ 24Vdc / 5A @ 120Vac |
| Update Rate | Typically within 100ms of alarm condition |
| Status Indicators | OK LED, Alarm LEDs, Channel Status LEDs |
3. Procurement Process
Your Trusted Partner for Industrial Automation
- Technical Verification: We confirm the 149986-01 hardware and firmware version to ensure seamless integration with your 3500 rack.
- Formal Quotation: You receive a professional quote including price, stock status, and worldwide express shipping options.
- Order Confirmation: Finalizing quantity and any required export documentation.
- Sales Contract: Issuance of a Proforma Invoice (PI) for secure transaction management.
- Customer Remittance: Secure payment via T/T (Bank Wire Transfer).
- Goods Allocation: Picking and technical inspection of 100% original, brand-new modules.
- Quality Control: Verification of factory seals, serial numbers, and physical integrity of the handle and LEDs.
- Global Distribution: Fast shipping via DHL, FedEx, or UPS with robust, shock-proof packaging.
4. Products Showcase (Photos & Video)

149986-01 sideview

149986-01 sideview

149986-01 label

149986-01 backside
5. Related Models
- Bently Nevada 3500/32 125712-01 (4-Channel Relay Module)
- Bently Nevada 136180-01 (16-Channel Relay I/O – Internal Terminations)
- Bently Nevada 136188-02 (16-Channel Relay I/O – External Terminations)
- Bently Nevada 3500/15 (Power Supply Module)
6. Warranty & After-Sales
- 12-Month Global Warranty: Full coverage against manufacturing defects for one year.
- 100% Genuine Guarantee: We exclusively supply original Bently Nevada products; no refurbished or third-party units.
- Export Expertise: Professional logistics support for shipments to Central Asia, the Middle East, and beyond, with all customs documentation provided.
7. FAQ
Q: What is the main difference between 149986-01 (3500/33) and the 3500/32 module?
The 3500/33 (149986-01) provides 16 relay channels, making it ideal for high-density applications. The 3500/32 is a standard 4-channel relay module. If your logic requires more than 4 outputs, the 149986-01 is more cost-effective and space-saving.
Q: Can the 149986-01 be hot-swapped while the rack is powered?
Yes, Bently Nevada 3500 modules are designed for hot-swapping. However, since this module controls relay outputs that may trigger machinery trips, it is critical to ensure that any associated shutdown logic is bypassed before removing the module to prevent accidental machine trips.
Q: Does this module include the rear I/O part?
No, the 149986-01 is the front-panel main monitor module. To complete the system, you must also have a rear I/O module, such as the 136180-01 (for internal wiring) or 136188-02 (for external wiring).
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+86 13313703791
+86 13313703791
seren@ymgkplc.com

