Bently Nevada 125712-01 3500 Series 4-Channel Relay Module

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Manufacturer: Bently Nevada
Product No.: 125712-01
Country of origin:United States
Product Type: Relay Modules
Payment: T/T, Western Union
Weight: 6000g
Shipping port: Xiamen
Warranty: 12 months

Description

Engineered for seamless integration within critical industrial machinery protection architectures, the 125712-01 serves as a dedicated four-channel relay input/output (I/O) module. This component is specifically designed to interface with the monitor modules in a 3500 Series Rack, delivering reliable alarm and trip contact outputs to external safety shutdown and control systems. Utilizing internal terminations, this module minimizes cabinet footprint requirements and simplifies field wiring installations.

Functioning as a core safety interface, the 125712-01 translates diagnostic monitor states into physical relay operations. This module provides critical machinery protection by executing shutdown sequences when preset hazard thresholds are crossed, protecting high-value rotating assets such as turbines, compressors, and large industrial pumps.

Features

Provides four independent, programmable relay channels.
Features integrated internal terminations to streamline wiring layouts without requiring external terminal blocks.
Supports Single-Pole, Double-Throw (SPDT) Form C contact configurations for versatile system integration.
Fully compatible with standard Bently Nevada 3500 machinery protection system racks and monitors.
Ensures failsafe configuration options, supporting normally energized or normally de-energized operation.

Applications

Steam, gas, and hydro turbine safety shutdown systems.
Heavy industrial compressor and turbo-machinery protection.
Large-scale power generation and petro-chemical processing plants.
Water treatment facilities and high-capacity pump systems.

Technical Specifications

Manufacturer	Bently Nevada
Part Number / Model	125712-01
Series	3500 Machinery Protection System
Module Type	4-Channel Relay I/O Module (Internal Terminations)
Relay Contact Type	Single-Pole, Double-Throw (SPDT) / Form C
Operating Temperature Range	-30 degC to +65 degC
Storage Temperature Range	-40 degC to +85 degC
Humidity Limits	95% non-condensing relative humidity
Country of Origin	United States
Shipping Weight	6.0 kg

Connections and Interfaces

Terminal Connection Block	Function Assignment
Relay 1 Terminals	Normally Open (NO), Common (COM), Normally Closed (NC)
Relay 2 Terminals	Normally Open (NO), Common (COM), Normally Closed (NC)
Relay 3 Terminals	Normally Open (NO), Common (COM), Normally Closed (NC)
Relay 4 Terminals	Normally Open (NO), Common (COM), Normally Closed (NC)

Installation Guidelines

Always power down the 3500 rack system prior to inserting or extracting the I/O module to prevent electrical damage.
Mount the module directly in the rear of the 3500 rack system in the slot corresponding to the associated front-facing monitor module.
Ensure field wiring is stripped to the manufacturer's recommended length and secured tightly inside the internal terminal block to avoid intermittent connections.
Route electrical control signal cables away from high-voltage motor power lines to minimize potential electromagnetic interference (EMI).

Key Features:

#Bently Nevada 3500 Series #Relay Modules

What is the primary function of the Bently Nevada 125712-01?

The Bently Nevada 125712-01 is a 4-channel relay I/O module that provides physical alarm and trip contact outputs to external safety shutdown and control networks from the 3500 Series Machinery Protection System.

Does the 125712-01 module feature internal or external terminations?

The 125712-01 model is configured with internal terminations, allowing field wiring to connect directly to terminal blocks mounted directly on the module's backplane.

What types of relay contacts are available on this module?

It features Single-Pole, Double-Throw (SPDT) Form C contacts, which include Normally Open (NO), Common (COM), and Normally Closed (NC) connection terminals for all 4 channels.

Global Express Shipping

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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

Bently Nevada 125712-01 3500 Series 4-Channel Relay Module