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PRODUCT DESCRIPTION
Triple redundant relay module
Bently Nevada 3500/34 is a TMR relay assembly. The relay assembly provides voted alarm outputs for a triple-modular-redundant 3500 machinery protection system. It processes independent alarm paths and uses a separate relay I/O module to operate the external circuits. Redundancy depends on the complete configured system, not this component alone.
This base designation identifies the TMR relay family without selecting the complete order or approval option. A new-system arrangement uses two half-height front modules, while a spare front module is supplied individually. Confirm the required front and rear assemblies before ordering or replacement.
This base designation identifies the TMR relay family without selecting the complete order or approval option. A new-system arrangement uses two half-height front modules, while a spare front module is supplied individually. Confirm the required front and rear assemblies before ordering or replacement.
BEFORE YOU BUY
Confirm the complete installed configuration
ACTUAL APPLICATIONS
Applications for 3500 TMR protection system
These applications describe manufacturer-documented family use. They do not establish that this exact ordering code was installed at a named customer site.
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01 · REDUNDANT PROTECTION
Voting machinery protection alarms
The manufacturer describes a TMR arrangement with independent monitor alarm paths. The relay I/O provides voted output channels to external circuits; the full system must be configured and validated for the intended protection function. -
02 · MULTICHANNEL ALARMS
Combining configured alarm conditions
AND and OR functions can combine Alert or Danger conditions from individual or multiple monitor channels. Each required alarm-drive arrangement is configured in the 3500 Rack Configuration Software. -
03 · FAULT-STATE MANAGEMENT
Handling an invalid monitor path
The source distinguishes alarm states from invalid or NotOK paths. The configured output follows the documented truth table; missing information must not be treated as an ordinary healthy non-alarm signal.
Technical specifications for 3500/34
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Product Model3500/34
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Product ParametersTriple redundant relay module
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In stock7 units
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ManufacturerBently Nevada
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Relay output channelsFour TMR channels
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Output voting arrangementTwo-out-of-three for healthy signal paths; fault states follow the documented truth table
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Control assemblyTwo redundant half-height front modules
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Rear relay arrangementOne full-height I/O module with twelve relays
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Alarm drive programmingAND / OR logic through 3500 Rack Configuration Software
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Monitoring prerequisitesTMR Rack Interface Module and three monitor modules
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Nominal power consumption9.6 W
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Contact constructionThree DPDT relays connected as SPST for each channel
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Arc suppressorNot fitted
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Relay sealingEpoxy sealed
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Channel operating stateNormally energized
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Operating temperature-30 to +65 deg C
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Storage temperature-40 to +85 deg C
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Humidity limit95%, noncondensing
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Status indicationOK, TX/RX and individual channel alarm LEDs
View all additional
Alternative Names
3500/34
3500/34 TMR relay assembly
Bently Nevada 3500/34
SYSTEM & REPLACEMENT CHECK
Information needed before ordering
Three direct checks to secure your system integration and minimize ordering risks.
Information
System integration
Replacement check
Manuals & support
TRIPLE REDUNDANT RELAY MODULE
Integrating 3500/34
The relay assembly provides voted alarm outputs for a triple-modular-redundant 3500 machinery protection system. It processes independent alarm paths and uses a separate relay I/O module to operate the external circuits. Redundancy depends on the complete configured system, not this component alone.
The original manufacturer description requires a TMR Rack Interface Module and three monitors. Two front relay modules process the alarm paths in parallel, while the rear I/O assembly provides the voted outputs. An ordinary four-channel relay is not automatically an equivalent TMR replacement.
Match the paired front modules, full-height rear I/O and configured rack. Use the controlled installation manual for external contact wiring and load limits. Review the alarm truth table, NotOK behavior and normally energized operating state before commissioning a protection circuit.
Features:
- Match complete order, installed input and output configuration, wiring and installation instructions
- Follow the applicable installation instructions
- Confirm unverified configuration details
The 3500/34 TMR relay assembly requires appropriate configuration before system integration and commissioning.
INTERCHANGEABILITY
Verify the complete replacement identity before commissioning
Replacement of 3500/34 requires comparing complete order, installed input and output configuration, wiring and installation instructions. A shared base family or similar appearance does not establish a drop-in replacement for the complete ordered assembly.
The original manufacturer description requires a TMR Rack Interface Module and three monitors. Two front relay modules process the alarm paths in parallel, while the rear I/O assembly provides the voted outputs. An ordinary four-channel relay is not automatically an equivalent TMR replacement.
No verified exact-order discontinuation date, product revision or designated successor is asserted. Document revisions identify the reference literature, not hardware changes to the supplied product. Unconfirmed replacement options must be resolved before substitution.
Features:
- Preserve the complete ordering identity
- Compare the installed electrical and mechanical interfaces
- Do not infer hardware revisions or successor models
The 3500/34 TMR relay assembly requires replacement verification against the complete installed configuration and current manufacturer documentation.
DOCUMENTATION STATUS
Browse the Manuals, Datasheets, Official Documents, Links
Important Notice: No verified product PDF is currently available on this page. Amikong-hosted reference documents will be listed only after their product identity and scope have been checked. Consult the applicable manufacturer instructions before use; additional documents are included only when expressly listed in the quotation.Features:
- Verify document identity before procurement or installation
- Match the complete order to the manufacturer document scope
- Accessories are supplied only when listed in the quotation
Documentation for the 3500/34 TMR relay assembly must be checked for document applicability before installation or commissioning.
Also searched as
Important notice
Manuals, software, firmware, cables, calibration data and accessories are included only when listed in the quotation. AMIKON is an independent supplier and is not affiliated with or authorised by the manufacturer.
This content has been produced using multiple sources. Takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
BUYER INFORMATION
Commercial terms without hidden steps
Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Shipping & delivery
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DispatchEligible stock: same / next day
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CarriersDHL, FedEx or UPS
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Ship fromXiamen, China
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Packed size2.6x25.3x12cm
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Shipping weight0.35 kg
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Payment & customs
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PaymentBank transfer (T/T)
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CurrenciesUSD · EUR · GBP · RMB
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Credit cardsNot accepted
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HS referenceClassification unconfirmed
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OriginUSA
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03
Warranty & returns
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Warranty12 months from AMIKON
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InspectionLabel, condition and packing checks
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ReturnsPrior RMA authorisation required
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CompatibilityConfirm before order
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OEM warrantyDoes not apply
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Your written quote confirms the product identity, price, availability, lead time, warranty and shipping terms before payment.
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Part checked
Full suffix recorded -
Condition checked
Label and appearance -
Packing checked
Antistatic protection -
Tracking supplied
Established couriers -
Sandy Lin
Dedicated account manager · 15+ years
FREQUENTLY ASKED QUESTIONS
Questions buyers ask about 3500/34
Direct answers about identity, compatibility, stock, warranty, payment and shipping.
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How is 3500/34 identified?
This base designation identifies the TMR relay family without selecting the complete order or approval option. A new-system arrangement uses two half-height front modules, while a spare front module is supplied individually. Confirm the required front and rear assemblies before ordering or replacement. -
What is the function of this component?
The relay assembly provides voted alarm outputs for a triple-modular-redundant 3500 machinery protection system. It processes independent alarm paths and uses a separate relay I/O module to operate the external circuits. Redundancy depends on the complete configured system, not this component alone. -
Which equipment and settings must match?
The original manufacturer description requires a TMR Rack Interface Module and three monitors. Two front relay modules process the alarm paths in parallel, while the rear I/O assembly provides the voted outputs. An ordinary four-channel relay is not automatically an equivalent TMR replacement. -
What application does it support?
The manufacturer describes a TMR arrangement with independent monitor alarm paths. The relay I/O provides voted output channels to external circuits; the full system must be configured and validated for the intended protection function. -
What should be checked during installation?
Match the paired front modules, full-height rear I/O and configured rack. Use the controlled installation manual for external contact wiring and load limits. Review the alarm truth table, NotOK behavior and normally energized operating state before commissioning a protection circuit. -
Does a replacement spare contain both front relay modules?
Not necessarily. The manufacturer distinguishes a new-system order, which includes two half-height modules and mounting hardware, from a spare order, which supplies one half-height front module. Confirm the delivered scope rather than assuming the redundant pair is included. -
Does two-out-of-three describe every possible fault state?
No. Healthy-path voting and invalid-path behavior are distinguished in the manufacturer truth table. Several fault combinations have different outcomes, and one case includes a configurable default. Validate the actual configuration against that table and the controlled system manual. -
What is the difference between 125696-01 and 125704-01?
The original spares list identifies 125696-01 as the TMR front relay module and 125704-01 as the TMR relay I/O module. They perform different roles and are not interchangeable positions in the assembly.
READY TO VERIFY YOUR PART?
Get a 3500/34 quote with price, lead time and revision check.
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