Bently Nevada 3500/33 149986-01D 16-Channel Relay Module

The Bently Nevada 3500/33 149986-01D is a high-performance 16-Channel Relay Module designed for the Bently Nevada 3500 Machinery Protection System. This module provides independent relay outputs for activating alarms, shutdowns, or other protective actions based on machine condition monitoring. With sixteen individually controlled relays, the module offers flexible configuration options for comprehensive system protection and response in critical industrial environments.

The 3500/33 Relay Module ensures rapid and reliable activation of external devices such as alarms, interlocks, or shutdown circuits, contributing to enhanced machinery safety and operational reliability.

Key Features

• Sixteen independent Form-C relay outputs for alarms and shutdowns

• Individually configurable relays for customized system response

• Half-height module design, occupying two slots in the 3500 rack

• LED indicators for quick relay status verification

• Supports critical trip functions and external device activation

• Rugged, industrial-grade construction for harsh environments

• Fully compatible with other Bently Nevada 3500 series modules

• Hot-swappable (when rack power is off) for convenient maintenance

• Reliable isolation of relay circuits from monitoring system electronics

• Designed for continuous operation in demanding industrial conditions

Technical Specifications

Typical Applications

• Alarm and shutdown control in rotating machinery protection systems

• Safety interlock activation for turbines, compressors, and pumps

• External annunciator, siren, or indicator light control

• Integration with process safety systems (SIS/Emergency Shutdown)

• Relay control for predictive maintenance alerts

• Trip circuits for generators, motors, and other critical assets

• Industrial process control requiring fault response actions

• Condition-based machinery monitoring systems

• Protection of equipment in power plants, petrochemical, and heavy industry

• System-wide relay coordination for large machinery installations

Product Advantages

• Provides reliable, isolated relay outputs for machine protection systems

• Sixteen configurable channels support complex alarm and shutdown logic

• Compact half-height design conserves rack space while delivering high functionality

• Visual relay status with LED indicators simplifies diagnostics

• Fully integrates with existing Bently Nevada 3500 system infrastructure

• Supports enhanced machine safety by enabling fast trip actions

• Industrial-grade build quality ensures long-term reliability in harsh environments

• Hot-swappable design reduces downtime during maintenance

• Optimized for critical machinery requiring continuous protection

• Manufactured to strict Bently Nevada quality standards for superior performance

Frequently Asked Questions (FAQ)

1. What is the function of the 3500/33 16-Channel Relay Module?

   It provides 16 independent relay outputs for alarms, shutdowns, and protective responses.

2. What types of relay contacts are used?

   Form-C (SPDT) electromechanical relays for versatile circuit switching.

3. What voltage and current ratings do the relays support?

   Up to 1 A at 30 VDC or 125 VAC per relay contact.

4. How many rack slots does this module occupy?

   Two adjacent half-height slots in the Bently Nevada 3500 rack.

5. Is the module compatible with the 3500 Machinery Protection System?

   Yes, it is fully compatible with other 3500 series monitoring and protection modules.

6. Are the relays configurable per application?

   Yes, each relay can be assigned to respond to specific alarms or system conditions.

7. Does the module have status indicators?

   Yes, front-panel LEDs indicate the status of each relay output.

8. Can the module be replaced while the system is powered?

   Hot-swapping is possible, but the rack power must be turned off before module replacement.

9. What environments is the module designed for?

   Industrial environments, with operating temperatures from -20°C to +70°C.

10. What applications commonly use this module?

    Machinery protection systems in power generation, oil and gas, chemical processing, and manufacturing industries.