The Bently Nevada 3500/33-03-00 149992-03 is a full-height 16-channel relay output module designed to provide advanced programmable safety voting and alarm drive logic for the 3500 Series Machinery Protection System. As a factory-configured low-current assembly, the 3500/33-03-00 149992-03 features specialized gold-plated relay contacts engineered specifically to ensure maximum contact integrity and prevent surface oxidation in low-power signaling applications. Each of its sixteen independent outputs possesses dedicated Alarm Drive Logic, allowing operators to program complex combinational AND/OR logic gates utilizing alert, danger, or Not-OK statuses gathered from any vibration, position, or temperature monitor module across the rack. This combined hardware and software solution serves as a highly reliable, hardware-voted emergency trip bridge between critical plant rotating assets and external Distributed Control Systems (DCS), programmable logic controllers (PLC), or Emergency Shutdown Systems (ESD).
| Ordering Code / Component Part Number | Description |
|---|---|
| 3500/33-03-00 | 16-Channel Relay Module complete assembly with Low Current Relays, No Agency Approvals. |
| A: 03 | Low Current Relay Module option (utilizes Output Module with Gold Contacts). |
| B: 00 | Agency Approval Option: None. |
| 149992-03 | Main Board Component: Low Current 16-Channel Relay Main Module with Gold-Plated Contacts. |
| Parameter Category | Specification Details |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Combined Designation | 3500/33-03-00 149992-03 |
| Module Type | 16-Channel Relay Module (Low Current Gold Variant) |
| Power Consumption | 5.8 Watts typical |
| Relay Contact Type | Single-pole, double-throw (SPDT) / Gold-plated contacts |
| Minimum Contact Load | 1 V, 1 mA minimum |
| Maximum Contact Load | 30 Vdc at 2 A resistive / 48 Vdc at 0.2 A resistive / 125 Vdc at 0.1 A resistive / 250 Vac at 2 A resistive |
| Contact Operation Mode | Onboard switch-selectable for Normally De-energized (NDE) or Normally Energized (NE) |
| Operating Temperature | -30 degC to +65 degC (-22 degF to +150 degF) |
| Storage Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Relative Humidity | 95%, non-condensing |
| Main Card Dimensions | 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in) |
| I/O Card Dimensions | 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) |
| Main Module Weight | 0.82 kg (1.8 lb) |
| I/O Module Weight | 0.41 kg (0.9 lb) |
The diagnostic readouts on the front and the physical terminations on the rear facilitate distinct interface tracking:
| Component Identifier | Functional Description / Assignment |
|---|---|
| OK LED | Front panel health light; remains solid green when internal software algorithms process normally. |
| TX/RX LED | Front panel communication light; flashes rapidly to indicate active digital backplane traffic. |
| CHALRM LEDs (1 - 16) | Channel status lights; independent LEDs illuminate directly to show when a specific relay channel is tripped. |
| Rear Terminal Block Contacts | I/O backplane connection pins grouping Common (COM), Normally Open (NO), and Normally Closed (NC) lines. |
| Relay Mode Toggles | Physical multi-position dual-throw onboard switches assigning individual channel states to NDE or NE. |
What is the functional relationship between the 3500/33-03-00 code and the 149992-03 part number?
The 3500/33-03-00 represents the complete factory ordering model number specifying a 16-channel relay system configured for low-current applications, while the 149992-03 is the exact manufacturer part number printed on the physical low-current main processor board included in that specific combination.
Why is gold plating critical for the contacts on this module?
Gold plating is vital for low-current circuitry (down to 1 V, 1 mA) because standard silver contacts develop surface oxidation layers over time under low electrical loads, whereas gold resists tarnish to guarantee a clean connection path.
Can I perform a hot-swap on this module while machinery monitoring is actively running?
Yes, the unit features a fully hot-swappable architecture, allowing maintenance teams to remove or insert the card into the slot without disconnecting power or causing signal drops on adjacent monitor channels.
Does a single order of this product supply both the front processor and the rear terminal board?
When purchased as a complete surplus or spare assembly assembly under these factory specifications, it typically denotes the main card; ensure you verify whether your specific system panel requires the matching 149986-01 rear internal termination block as well.
Global Express Shipping
Returns & Warranty
Manufacturer: Bently Nevada
Product No.: 3500/33-03-00 149992-03
Country of origin:United States
Product Type: Relay Output Module
Barcode: 8537101190
Payment: T/T, Western Union
Weight: 1230g
Dimensions: 241.3 mm x 24.4 mm x 241.8 mm
Shipping port: Xiamen
Warranty: 12 months
The Bently Nevada 3500/33-03-00 149992-03 is a full-height 16-channel relay output module designed to provide advanced programmable safety voting and alarm drive logic for the 3500 Series Machinery Protection System. As a factory-configured low-current assembly, the 3500/33-03-00 149992-03 features specialized gold-plated relay contacts engineered specifically to ensure maximum contact integrity and prevent surface oxidation in low-power signaling applications. Each of its sixteen independent outputs possesses dedicated Alarm Drive Logic, allowing operators to program complex combinational AND/OR logic gates utilizing alert, danger, or Not-OK statuses gathered from any vibration, position, or temperature monitor module across the rack. This combined hardware and software solution serves as a highly reliable, hardware-voted emergency trip bridge between critical plant rotating assets and external Distributed Control Systems (DCS), programmable logic controllers (PLC), or Emergency Shutdown Systems (ESD).
| Ordering Code / Component Part Number | Description |
|---|---|
| 3500/33-03-00 | 16-Channel Relay Module complete assembly with Low Current Relays, No Agency Approvals. |
| A: 03 | Low Current Relay Module option (utilizes Output Module with Gold Contacts). |
| B: 00 | Agency Approval Option: None. |
| 149992-03 | Main Board Component: Low Current 16-Channel Relay Main Module with Gold-Plated Contacts. |
| Parameter Category | Specification Details |
|---|---|
| Manufacturer | Bently Nevada (Baker Hughes) |
| Combined Designation | 3500/33-03-00 149992-03 |
| Module Type | 16-Channel Relay Module (Low Current Gold Variant) |
| Power Consumption | 5.8 Watts typical |
| Relay Contact Type | Single-pole, double-throw (SPDT) / Gold-plated contacts |
| Minimum Contact Load | 1 V, 1 mA minimum |
| Maximum Contact Load | 30 Vdc at 2 A resistive / 48 Vdc at 0.2 A resistive / 125 Vdc at 0.1 A resistive / 250 Vac at 2 A resistive |
| Contact Operation Mode | Onboard switch-selectable for Normally De-energized (NDE) or Normally Energized (NE) |
| Operating Temperature | -30 degC to +65 degC (-22 degF to +150 degF) |
| Storage Temperature | -40 degC to +85 degC (-40 degF to +185 degF) |
| Relative Humidity | 95%, non-condensing |
| Main Card Dimensions | 241.3 mm x 24.4 mm x 241.8 mm (9.50 in x 0.96 in x 9.52 in) |
| I/O Card Dimensions | 241.3 mm x 24.4 mm x 99.1 mm (9.50 in x 0.96 in x 3.90 in) |
| Main Module Weight | 0.82 kg (1.8 lb) |
| I/O Module Weight | 0.41 kg (0.9 lb) |
The diagnostic readouts on the front and the physical terminations on the rear facilitate distinct interface tracking:
| Component Identifier | Functional Description / Assignment |
|---|---|
| OK LED | Front panel health light; remains solid green when internal software algorithms process normally. |
| TX/RX LED | Front panel communication light; flashes rapidly to indicate active digital backplane traffic. |
| CHALRM LEDs (1 - 16) | Channel status lights; independent LEDs illuminate directly to show when a specific relay channel is tripped. |
| Rear Terminal Block Contacts | I/O backplane connection pins grouping Common (COM), Normally Open (NO), and Normally Closed (NC) lines. |
| Relay Mode Toggles | Physical multi-position dual-throw onboard switches assigning individual channel states to NDE or NE. |
What is the functional relationship between the 3500/33-03-00 code and the 149992-03 part number?
The 3500/33-03-00 represents the complete factory ordering model number specifying a 16-channel relay system configured for low-current applications, while the 149992-03 is the exact manufacturer part number printed on the physical low-current main processor board included in that specific combination.
Why is gold plating critical for the contacts on this module?
Gold plating is vital for low-current circuitry (down to 1 V, 1 mA) because standard silver contacts develop surface oxidation layers over time under low electrical loads, whereas gold resists tarnish to guarantee a clean connection path.
Can I perform a hot-swap on this module while machinery monitoring is actively running?
Yes, the unit features a fully hot-swappable architecture, allowing maintenance teams to remove or insert the card into the slot without disconnecting power or causing signal drops on adjacent monitor channels.
Does a single order of this product supply both the front processor and the rear terminal board?
When purchased as a complete surplus or spare assembly assembly under these factory specifications, it typically denotes the main card; ensure you verify whether your specific system panel requires the matching 149986-01 rear internal termination block as well.
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Color pattern |
Silver
|
| Country of origin |
United States
|
| Power source |
DC Power
|
Replacing a 1756-L73 does not automatically mean upgrading its firmware. This guide compares v19.013, v21.011 and v31.011, focusing on project compatibility, HMI communications, legacy networks and...
Implement a 3-SPST switch XOR light circuit in LogixPro or RSLogix 500 using an internal relay bit. Includes truth tables, boolean equations, and verified.
Integrate Allen-Bradley CompactLogix, Caterpillar ATS, and generators into DeltaV DCS over Modbus RTU. Covers ProSoft MVI69-MCM, Miille DIN266 gateways.
ONS instruction fires but the OTE coil never latches in Studio 5000 because the one-shot is only true for one scan. Use OTL/OTU or seal-in logic instead.
Configure Allen-Bradley Kinetix 5500 servo drives on EtherNet/IP. Covers CIP Sync, IEEE 1588 V2 timing, Stratix selection, DLR topology, and HMI.
A moving-average filter is the sliding-window smoother most instrument engineers drop into DCS and PLC analog paths. Here is how the window works, how N and sample time set lag, and when a...
