Free UPS Ground on All Orders!
Request a
Fast Quote
Account
Cart
Quote
+1 (919) 205-4392
Allen Bradley Flex I/O 1794 1794-IRT8XT

Product image is representative; revision or series may vary. Contact us to request a specific version.

1794-IRT8XT

|
Need a Specific Revision?

The 1794-IRT8XT input module from Allen Bradley is engineered to handle thermocouple and RTD inputs. It features a total of eight channels, organized into two groups of four. This module operates within a voltage input range, specifically -40 to 100 millivolts for thermocouples and 0 to 325 millivolts for RTDs.

In Stock
Ships from Raleigh, NC
2 Year DO Supply Warranty
Not an Authorized Distributor: DO Supply is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All of our products come with DO Supply's 2-year warranty.
Learn more
Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1794-IRT8XT

ManufacturerAllen Bradley
Product TypeThermocouple/Resistance Temperature Detector (RTD) Input Module
Product LineFlex I/O 1794
Part Number1794-IRT8XT
UPC612598731206
Weight0.50 lbs (0.23 kg)
Number of Input Channels8 input channels (divided into two groups of 4 channels)
Enclosure StyleNone (open-style enclosure)
Nominal Input Voltage Range-40 to 100 millivolts DC for thermocouples; 0 to 325 millivolts for RTDs
Types of Supported ThermocouplesType B, E, J, K, TXK/XK(L), N, R, S, and T
Resolution14 bits
Isolation Voltage Rating50 Volts (continuous)
External Power Supply Voltage24 Volts DC
Supply Current95 milliamperes at 24 Volts DC
Maximum Power Dissipation3 Watts at 31.2 Volts DC
Local Signalling8 red input status indicators and 1 green power status indicator
Open Input Detection TimeImmediately (maximum of 2 scans)
Maximum Thermal Dissipation10.2 British Thermal Units per hour at 31.2 Volts DC
Overvoltage Capability15 Volts DC (continuous) at 25°C
Request a Repair

The 1794-IRT8XT is an input module developed by Allen Bradley, tailored for processing signals from thermocouples and Resistance Temperature Detectors (RTDs). This component integrates eight input channels, split into two sets of four, allowing for flexible applications.

Operating across a voltage range of -40 to 100 millivolts DC for thermocouples and from 0 to 325 millivolts for RTDs, this module accommodates multiple sensor types. It supports thermocouple variants such as Types B, E, J, K, TXK/XK(L), N, R, S, and T. The resolution achieved with this module is impressive at 14 bits, enabling precise measurements.

Designed for functionality, the 1794-IRT8XT comes without a protective enclosure, offering an open-style installation. It maintains an isolation voltage rating of 50 Volts continuously and operates under an external power supply requirement of 24 Volts DC. The supply current draws about 95 milliamperes at this voltage.

Power dissipation is kept to a maximum of 3 Watts at 31.2 Volts DC, ensuring efficient operation. Additionally, local status indicators include eight red input status lights and one green power status light, providing immediate feedback on module performance. The input detection responds swiftly, with open inputs being identified almost instantly—within two scan cycles.

With a maximum thermal dissipation capability of 10.2 British Thermal Units per hour at 31.2 Volts DC and an overvoltage tolerance of 15 Volts DC at 25 degrees Celsius, the 1794-IRT8XT module is engineered for reliability in demanding environments.