Bently Nevada

Bently Nevada 125704-01 TMR Relay Module

SKU 125704-01

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 125704-01

  • Country of origin:United States

  • Product Type: TMR Relay I/O Module

  • Barcode: 8537101190

  • Payment: T/T, Western Union

  • Weight: 520g

  • Dimensions: 2.5cm x 11.2cm x 24.2cm

  • Shipping port: Xiamen

  • Warranty: 12 months

The Bently Nevada 125704-01 is a rack I/O module used in the 3500/34 triple-modular-redundant relay arrangement. The TMR design groups three relay channels for hardware voting so that a configured relay function is not dependent on a single relay path. This listing is for part number 125704-01 only; the mating front module, field wiring and configured logic are separate project items.

Technical specifications

Manufacturer Bently Nevada
Part number 125704-01
Product type TMR Relay I/O Module
Associated assembly 3500/34 TMR Relay Module
Relay arrangement 12 relay outputs arranged as four groups of three
Voting principle Hardware two-out-of-three voting within each relay group
Rack position Rear I/O position behind the associated 3500/34 front module

Compatibility and ordering checks

  • Confirm part number 125704-01 from the installed module label.
  • Verify that the project uses a 3500/34 TMR relay assembly, not a standard 3500/32 relay module.
  • Record the field terminal assignment and relay logic before removal; configuration is held elsewhere in the rack system.
  • Check the mating front module, rack slot and field wiring condition before replacement.

Dimensions and shipping

Product dimensions Approximately 2.5 × 11.2 × 24.2 cm
Net weight Approximately 0.52 kg
Estimated package dimensions 32 × 20 × 10 cm
Estimated shipping weight 1.0 kg

Packaging values are estimates for protected air shipment. Warehouse measurement at dispatch takes precedence.

Procurement notes

Supply the front-module number and a clear photo of the existing rear I/O label when requesting a replacement. The exact 125704-01 suffix matters because standard relay and TMR relay hardware are not interchangeable by description alone.

FAQ

What is Bently Nevada 125704-01?

It is the rear I/O module used with the 3500/34 TMR Relay Module arrangement.

How are the relay outputs arranged?

Historical 3500/34 documentation identifies 12 relay outputs arranged as four groups of three, with two-out-of-three hardware voting in each group.

Is 125704-01 interchangeable with a standard 3500 relay module?

Do not assume interchangeability. Confirm the 3500/34 TMR assembly, mating front module and field wiring before replacement.

What information should be supplied with an enquiry?

Provide the 125704-01 label photo, the front-module part number, rack slot and existing terminal or wiring details.

View all FAQs →

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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical 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 .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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