Bently Nevada 3500/33 149986-01 sixteen-channel relay module for 3500 machinery protection system alarm outputs
Bently Nevada 3500/33 149986-01 relay module, showing the front panel, channel indicators, and module handle
Bently Nevada 3500/33 149986-01 sixteen-channel relay assembly with circuit board components and rack connector
Bently Nevada 3500/33 149986-01 sixteen-channel relay module for 3500 machinery protection system alarm outputs
Bently Nevada 3500/33 149986-01 relay module, showing the front panel, channel indicators, and module handle
Bently Nevada 3500/33 149986-01 sixteen-channel relay assembly with circuit board components and rack connector
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    Apter Power sources genuine Bently Nevada 3500/33 149986-01 hardware, providing factory-current components to secure the emergency shutdown and safety interlocking paths of your 3500 system.

3500/33 149986-01

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The Bently Nevada 3500/33 149986-01 is a 16-channel relay module that provides programmable SPDT relays with alarm logic for precise machinery protection and control.
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Technical specifications for 3500/33 149986-01

  • Manufacturer:
    Bently Nevada
  • Part Number:
    3500/33 149986-01
  • Product Family:
    3500 System
  • Product Type:
    16-channel Relay Module
  • Stock:
    2
  • Inputs Power Consumption:
    5.8 watts typical
  • Min Switched Current:
    100 mA @ 5 Vdc
  • Max Switched Current:
    5 A DC/AC
  • Max Switched Power:
    70 W @ 24 Vdc, 10 W @ 48 Vdc, 9 W @ 60 Vdc/1200 VA AC
  • Max Switched Voltage:
    125 Vdc DC/250 Vac AC
  • Min Switched Current:
    100 mA @ 5 Vdc
  • Max Switched Voltage:
    30 Vdc
  • Relay Contact Life:
    10,000 cycles
  • Relay Type:
    Single-pole Double-throw (SPDT)
  • Relay Environmental Sealing:
    Epoxy-sealed
  • Relay Arc Suppressor:
    250 Vrms Installed as standard
  • Weight:
    0.76 kg
  • Estimated shipping dimensions:
    2.5x25.2x24cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Applications Monitoring & Control Environmental Ratings

Features:

  • Relay Output Interface for Machine Protection and Control Systems
  • Combines 16-Channel Relay Capability with Independent Programmable Logic
  • Operates in Conjunction with the 3500 Rack Configuration Software and TDI Module
The Bently Nevada 3500/33 149986-01 16-Channel Relay Module serves as the primary relay output interface in a 3500 rack, providing 16 independently programmable relay outputs for alarm annunciation and machine shutdown functions. The 3500/33 149986-01 continuously processes status inputs from all monitor channels within the rack and converts these into physical relay contact closures based on user-configured voting logic. Seamless integration with the 3500 system is standard with the 3500/33 149986-01, and its flexible slot placement allows installation in any position to the right of the Transient Data Interface (TDI) Module to accommodate varying rack configurations. The 3500/33 149986-01 has established itself as a critical protection component within the 3500 machinery monitoring system, offering epoxy-sealed environmental protection and SPDT relay contacts with 250 Vrms arc suppression as standard features.

The 3500/33 149986-01 provides essential relay output functions for the entire rack, and is a critical component of the protection path, directly affecting the proper execution of machine shutdown and alarm sequences. Any number of 3500/33 149986-01 relay modules can be installed per rack depending on the number of required relay outputs. The 3500/33 149986-01 occupies a single full-height slot in the rack and is always positioned in slots to the right of the TDI Module.

For expanded relay output applications, the 3500 System accommodates multiple 3500/33 149986-01 16-Channel Relay Modules installed in available rack slots. In addition to standard single module operation, multiple modules operate independently. The 3500 multi-relay configuration executes alarm logic using the internal programming specified in the Rack Configuration Software. Using this method, the relay system continually monitors the status of all configured inputs. If the system detects that any monitored channel exceeds configured alert or danger thresholds, the 3500/33 149986-01 will automatically activate the corresponding relay output and place an event in the System Event List based on the programmed AND/OR logic.

The 3500/33 149986-01 Bently Nevada 16-Channel Relay Module may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 3500/33 149986-01 16-Channel Relay Module Manuals,Datasheets,Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Bently Nevada 3500/33 149986-01 16-Channel Relay Module Specs

General

  • Manufacturer Bently Nevada
  • Model 3500/33 149986-01
  • Condition New Original ready stock
  • Product Family 3500/33-02-02,3500/33,149992-01
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Critical Rotating Equipment: Protection for turbines, compressors, and pumps.
  • Connectors: Utilizes gold-plated ClickLoc™ connectors that require only finger-tight torque; they "click" when properly secured.
  • Safety & Shutdown Systems: Automating machine shutdowns during dangerous vibration or speed conditions.
  • Industrial Controls: Power generation, oil and gas, and heavy manufacturing safety interlocks.
  • Alarm Drive Logic: Each relay can be programmed using AND and OR logic to trigger based on "Alert" or "Danger" statuses from any monitor channel in the rack.
  • Voting Logic: Supports independent programming for voting configurations (e.g., 2-out-of-3) to minimize false trips.
  • Relay Configuration: Single-pole, double-throw (SPDT) relays that can be set to "Normally Energized" or "Normally De-energized" in groups of four.
  • Visual Indicators: Features a front-panel OK LED for module health, TX/RX LED for communication status, and individual CH ALARM LEDs for each relay channel.
  • Software Requirement: Requires 3500 Rack Configuration Software (v3.3+) and Data Acquisition Software (v2.40+).
  • Operating Temperature: -30°C to +65°C (-22°F to +150°F).
  • Storage Temperature: -40°C to +85°C (-40°F to +185°F).
  • Humidity: 95% non-condensing.
  • Hazardous Area Approvals: CSA/NRTL/C (Class I, Div 2) and ATEX/IECEx/CSA (Class I, Zone 2) certifications available.
  • Relay Durability: Features epoxy-sealed relays for enhanced protection against contaminants.
Description
The Bently Nevada 3500/33 149986-01 Spare 16-Channel Relay Control Module is a full-height module designed to provide 16 independent relay outputs for critical machinery monitoring and control. Each relay is a single-pole double-throw (SPDT) type with epoxy-sealed environmental protection and a built-in arc suppressor rated at 250 Vrms. The relays support a maximum switched current of 5 A DC/AC and a maximum switched power of 70 W at 24 Vdc, 10 W at 48 Vdc, 9 W at 60 Vdc, or 1200 VA AC. The module’s minimum switched current is 100 mA at 5 Vdc, and maximum switched voltage is 125 Vdc DC or 250 Vac AC. Each relay is rated for 10,000 operational cycles.

The 3500/33 module allows each output to be independently programmed to perform voting logic. It integrates Alarm Drive Logic that can be configured using AND and OR logic, leveraging alarming inputs such as alert and danger statuses, Not-OK signals, and individual measured variables from any monitor channel or any combination of channels within the 3500 rack. Programming is performed through the 3500 Rack Configuration Software, providing full flexibility for machinery protection and operational automation.

This module is versatile and can be installed in any slot to the right of the Transient Data Interface (TDI) Module in the 3500 rack. Its low power consumption of 5.8 watts ensures minimal energy usage while providing reliable relay switching for industrial applications. With epoxy-sealed construction and integrated arc suppression, the 3500/33 149986-01 is engineered to operate reliably in demanding industrial environments.

Ideal for large machinery and critical process applications, the Bently Nevada 3500/33 149986-01 ensures safe and precise alarm and control logic implementation. Its high-quality relay components and programmable logic make it an essential module for safeguarding equipment and ensuring operational continuity.
Alternative Names
35OO/33 149986-01 3500/33 I49986-0I 3500/33 149986-01 3500/40M 3500/20 3500/45 3500/50
Technical notes
The Bently Nevada 3500/33 is a full-height, 16-Channel Relay Module designed for the 3500 Series Machinery Protection System. Part number 149986-01 designates the Spare 16-Channel Relay Control Module (the main front-slot processor/control card). It provides programmable logic to drive external machinery alert, danger, and shutdown devices.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
How many relay channels does the 3500/33 149986-01 module provide?
The Bently Nevada 3500/33 149986-01 provides 16 independent relay channels.
What functions are supported by Bently Nevada 3500/33 149986-01 in a monitoring system?
3500/33 149986-01 provides 16-channel relay switching used for alarm handling, shutdown logic, and control signal routing within machinery protection systems.
Can 3500/33 149986-01 handle both AC and DC loads effectively?
3500/33 149986-01 supports switching for both AC and DC loads, with maximum ratings of 250 Vac and 125 Vdc.
Is the Bently Nevada 3500/33 149986-01 149986-01 a brand new product?
Yes, all products sold by Apter Power are brand new and factory tested.