Introduction

The Bently Nevada 3500/33 149986-01 16-Channel Relay Module delivers high-capacity relay output for the 3500 Machinery Protection System. With 16 independent channels, it allows operators to monitor multiple alarm points, interlocks, and emergency shutdown signals from a single rack. Compact, durable, and fully compatible with all 3500 modules, this module provides a scalable solution for protecting critical industrial machinery.

Technical Specifications

Parameter	Details
Model	3500/33 149986-01
Function	16-Channel Relay Module
Dimensions	241 × 24.4 × 242 mm
Weight	0.7 kg
System Compatibility	Bently Nevada 3500 Series Racks
Cooling	Natural convection
Installation	Standard 3500 rack slot
Channels	16 independent relay outputs
Operating Environment	Turbine halls, compressor stations, industrial machinery
Redundancy	Multiple modules can be installed for expanded output

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Applications

The Bently Nevada 3500/33 149986-01 16-Channel Relay Module is designed for complex machinery protection systems that require multiple independent relay outputs. Typical applications include:

Turbine, compressor, and pump monitoring systems
Large industrial rotating equipment with multiple alarm and shutdown points
Refinery and petrochemical plant machinery protection
Centralized monitoring racks in power generation facilities
Systems requiring expanded relay output capacity for alarms, interlocks, and emergency shutdowns

Advantages

High Channel Density: Provides 16 independent relay outputs in a single module, reducing rack footprint.
Reliable and Fast Acting: Ensures timely alarms and protective actions.
Compact Form Factor: Fits standard 3500 racks while delivering expanded relay capability.
Durable Construction: Engineered to operate in industrial vibration and temperature extremes.
Flexible Integration: Compatible with all standard 3500 series monitoring modules.
Simplified Maintenance: Easy to install and service, reducing operational downtime.

Technical FAQs

What is the function of the 3500/33 module?
It provides 16 independent relay channels for alarms, interlocks, or shutdowns.
Can it be installed in standard 3500 racks?
Yes, compatible with 19-inch 14-slot and 12-inch 7-slot 3500/05 racks.
Is redundancy supported?
Multiple relay modules can be installed for expanded outputs and backup.
Is the module suitable for high-speed signals?
Yes, relay channels respond quickly to monitored conditions.
Can it operate in harsh industrial environments?
Yes, it is built to withstand vibration, temperature variations, and industrial conditions.
Is hot-swapping possible?
Replacement should be done with the rack powered down, following standard procedures.
Does it integrate with plant control systems?
Yes, relay outputs can interface with PLCs, DCS, and alarm systems.
What is the maintenance requirement?
Minimal; periodic inspection for connections and dust is recommended.
Does it support monitoring of multiple assets simultaneously?
Yes, the 16-channel configuration allows monitoring multiple machinery points.
Can it be used in retrofit applications?
Yes, it is ideal for adding relay capacity to existing 3500 racks.