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

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Manufacturer: Bently Nevada
Product No.: 3500/33 149986-01
Country of origin:United States
Product Type: 16-Channel Relay Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1300g
Dimensions: 241 mm x 24.4 mm x 242 mm
Shipping port: Xiamen
Warranty: 12 months

Description

The 3500/33 with spare part number 149986-01 is a full-height module that provides 16 independent programmable relay outputs for machinery protection and control switching. This 3500/33 149986-01 module functions within the 3500 Series Machinery Protection System and installs into any standard slot to the right of the Transient Data Interface (TDI) module. Each relay output features independent voting logic configuration and dedicated Alarm Drive Logic, which processes alert, danger, and Not-OK statuses derived from any combination of monitor channels across the rack via the configuration software. Internal communication link tracking is visually monitored via integrated front panel status indicators.

Features

16 fully independent single-pole double-throw (SPDT) relay output channels.
Custom voting logic and Alarm Drive Logic supporting complex AND/OR logic configurations.
Integrated onboard 250 Vrms arc suppressors installed as a standard protection feature.
Switch-selectable operations for Normally De-energized (ND) or Normally Energized (NE) modes in groups of four channels.
Visual status verification via OK, TX/RX, and individual channel alarm LEDs.

Applications

Automated machinery trip and emergency shutdown logic initialization.
Interlocking and annunciator panel control in heavy industrial processing.
Critical alarm state relay signaling for turbines, large pumps, and industrial compressors.

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Model Number	3500/33
Spare Part Number	149986-01
Product Type	16-Channel Relay Control Module
Power Consumption	5.8 watts typical
Relay Contact Type	Single-pole Double-throw (SPDT), epoxy-sealed
Relay Arc Suppressor	250 Vrms standard
Relay Contact Life	10,000 cycles
Standard System Min Load	100 mA @ 5 Vdc
Standard DC Max Load	5 A, 70 W @ 24 Vdc, 10 W @ 48 Vdc, 9 W @ 60 Vdc, 125 Vdc max
Standard AC Max Load	5 A, 1200 VA, 250 Vac max
Failsafe System Max DC	5 A, 30 Vdc max
Low Current System Min Load	1 mA @ 1 Vdc (Gold-plated contacts)
Low Current System Max DC	100 mA @ 48 Vdc
Low Current System Max AC	5 mA max (Specific to AC up to 120Vac)
Main Module Dimensions	241 mm x 24.4 mm x 242 mm (9.50 in x 0.96 in x 9.52 in)
I/O Module Dimensions	241 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in)
Main Module Weight	0.7 kg (1.6 lb)
I/O Module Weight	0.4 kg (1.0 lb)
Rack Space Required	1 full-height front slot (Main), 1 full-height rear slot (I/O)
Country of Origin	United States

Installation Guidelines

Slot Placement: Seat the full-height main control module into any available chassis slot located directly to the right of the primary TDI module.
Redundant Pairs: Pair the main front-panel module with its corresponding 16-channel relay I/O module positioned directly behind it in the rear chassis space.
Logic Programming: Configure the voting logic structures and operational parameters via the 3500 Rack Configuration Software prior to putting the instrumentation loop online.
Operation Mode Setup: Set the physical switches to select between Normally De-energized (ND) and Normally Energized (NE) setups for each four-channel group based on plant safety specifications.
Hazardous Voltage Warning: Ensure all field terminal wiring points are completely isolated from source power lines prior to installation or maintenance to eliminate high-voltage shock risks.
Explosion Hazard Precaution: Do not connect or disconnect any components or field terminations while the active instrumentation circuit is live unless the surrounding zone is verified to be non-hazardous.

Key Features:

#Relay Module

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

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Where can this 16-channel relay module be installed inside the rack?

The module is full-height and can be placed in any of the slots located to the right of the Transient Data Interface (TDI) module.

How are the Normally Energized or Normally De-energized operations chosen?

The relay operations are switch-selectable on the hardware in four distinct groups of four channels each.

What is the maximum current rating for standard relays in AC applications?

Standard relays support a maximum switched current of 5 A and a maximum switched power of 1200 VA, up to a maximum voltage of 250 Vac under resistive loads.

What happens if standard electrical loads are applied to gold-plated low current relays?

For low current gold-plated relays, the maximum switching current before sustaining component damage is strictly limited to 5 mA for AC up to 120Vac.

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