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Allen Bradley 1746-NR4 RTD/Resistance Input Module

Allen Bradley 1746-NR4: 4-Channel RTD/Resistance Input Module for SLC 500.

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ManufacturerAllen Bradley

Part number1746-NR4RTD

Channels 4

Input Type RTD (Platinum, Nickel, Copper, Nickel-Iron), Resistance

Resolution 16-bit

Series SLC 500

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12-month warranty

All units tested

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Same-day dispatch

Order by 2pm CST

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Worldwide delivery

US, EU, Asia, Middle East

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Veteran-owned

CAGE: 9NK75

4 isolated RTD/Resistance input channels Supports various RTD types 16-bit resolution for high precision SLC 500 compatibility Broken-sensor detection

Product description

The Allen-Bradley 1746-NR4 is a four-channel RTD (Resistance Temperature Detector) and resistance analog input module designed for the SLC 500 system. It supports a variety of RTD sensor types and direct resistance inputs, making it ideal for precise temperature and resistance measurements in industrial environments.

This module is crucial for applications in industries such as food and beverage processing, pharmaceutical autoclaves, and chemical reactors where accurate temperature monitoring is critical. It translates subtle resistance changes into highly accurate 16-bit digital values for the PLC.

Stanlo Automation, a veteran-owned surplus parts distributor, offers the 1746-NR4. We provide reliable, tested surplus components to keep your industrial automation systems running smoothly.

Technical specifications

Channels	4
Input Type	RTD (Platinum, Nickel, Copper, Nickel-Iron), Resistance
Resolution	16-bit
Series	SLC 500
Resistance Range	0-3000 Ohms

Common applications

Temperature monitoring

Pharmaceutical autoclaves

Chemical reactors

Food & beverage processing

Industrial measurement

Compatible systems

SLC 500 (1746 Chassis)

Also known as

1746 NR4 Allen Bradley RTD Input SLC 500 Temperature Module

Replaces / compatible with

Compatible with Allen Bradley SLC 500 series controllers and chassis, providing precise temperature and resistance measurement capabilities.

Technical note

Expert tip

For accurate readings, it is recommended to use 3-wire or 4-wire RTDs to compensate for lead wire resistance, especially over long distances.

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Frequently asked questions

What types of RTD sensors does the Allen Bradley 1746-NR4 module support?

The 1746-NR4 module supports Platinum (Pt100, Pt200, Pt500, Pt1000), Nickel, Copper, and Nickel-Iron RTD types. It also accepts direct resistance inputs up to 3000 Ohms.