Allen-Bradley 1746-NT8 SLC 500 8-Channel Thermocouple Input Module

Allen-Bradley 1746-NT8 SLC 500 8-Point Thermocouple/mV Input Module

Availability: 4 left in stock

DescriptionThe Allen-Bradley 1746-NT8 is a specialized analog input module designed for the SLC 500 programmable controller platform. This module features...

SKU: 1746-NT8

Manufacturer: Allen-Bradley
Product No.: 1746-NT8
Product Type: Analog Input Module
Product Origin: USA
Payment:T/T, Western Union
Weight: 200g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Description

The Allen-Bradley 1746-NT8 is a specialized analog input module designed for the SLC 500 programmable controller platform. This module features 8 differential input channels, specifically engineered to interface with thermocouple sensors or millivolt signals. It provides high-precision data acquisition for temperature control and monitoring applications within industrial automation environments.

Features

8 isolated differential input channels.
Compatibility with a wide range of thermocouple types (J, K, T, E, R, S, B, N) and millivolt input ranges.
Integrated cold junction compensation for thermocouple accuracy.
Direct integration into the SLC 500 I/O chassis for seamless communication with the CPU.
Software-configurable input types and data formats.

Applications

This module is widely utilized in industrial processes requiring precise temperature monitoring, including heat treatment furnaces, chemical reactors, environmental chambers, and plastic extrusion machinery. Its ability to process low-level millivolt signals makes it suitable for various laboratory and process instrumentation sensors.

Technical Specifications

Manufacturer	Allen-Bradley
Model Number	1746-NT8
Module Type	Analog Thermocouple / mV Input
Channel Count	8 Differential
Platform	SLC 500
Input Voltage Range	24 VDC (Backplane Powered)
Country of Origin	United States

Installation Guidelines

Ensure the SLC 500 chassis power is disconnected before installing or removing the module.
Use shielded twisted-pair cabling for all thermocouple and millivolt sensor connections to minimize electromagnetic interference (EMI).
Ground the cable shields at one end only to prevent ground loops.
Verify that the module is firmly seated in the chassis slot and secured with the retaining screws.
Keep signal wiring separated from high-voltage power lines and motor control cables.

FAQ

Is the 1746-NT8 a digital input module?
No, despite some legacy documentation labels, the 1746-NT8 is an analog input module designed for thermocouple and millivolt signals, not discrete digital inputs.

Does this module require external power?
The module is powered via the SLC 500 backplane; however, ensure your chassis power supply has sufficient capacity for the total I/O load.

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