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  • 1746-INT4
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1746-INT4

Allen-Bradley 1746-INT4 SLC 500 Thermocouple Module

In stock (23 units), ready to be shipped

  • Manufacturer: Allen-Bradley

  • Product No.: 1746-INT4

  • Product Type: Input Module

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 350g

  • Shipping port: Xiamen

  • Warranty: 12 months

30-Day Return Policy · 12-Month Warranty
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Description

Product Overview

The Allen-Bradley 1746-INT4 is a 4-channel isolated thermocouple/mV analog input module for the SLC 500 platform. Each channel supports types C, D, J, K, T, E, R, S, B, and N thermocouples plus -100 to 100 mV DC signals, storing digitally converted data for SLC 500 processors. The module weighs approximately 0.35 kg (0.77 lb).

Technical Specifications

Manufacturer Rockwell Automation / Allen-Bradley
Catalog Number 1746-INT4
Series SLC 500
Module Type Isolated Thermocouple/mV Analog Input Module
Inputs 4 isolated channels
Thermocouple Types C, D, J, K, T, E, R, S, B, N
mV Signal Inputs -50…50 mV DC; -100…100 mV DC
Resolution 16 bits
Bandwidth 8 Hz
Conversion Method Sigma-Delta ADC modulation
Cold Junction Accuracy ±1.5°C, 0…70°C
Isolation 1000V transient / 150V AC channel-to-channel and channel-to-backplane
Input Impedance > 10 MΩ
Open-Circuit Detection Upscale, downscale, or zero; 20 nA, 5 s typical
Update Time 500 ms
Backplane Current (5V) 110 mA
Backplane Current (24V) 85 mA
Weight 0.35 kg (0.77 lb) approx.
Operating Temperature 0°C to +60°C (32°F to +140°F)
Humidity 5% to 95% non-condensing
Certifications CE, CSA, UL

Engineering Advantages

Four individually isolated channels prevent ground loops between thermocouples and the backplane. Sigma-Delta conversion with 16-bit resolution captures fine temperature changes across an 8 Hz bandwidth. Common mode rejection exceeds 120 dB between inputs and chassis ground. Open-circuit detection flags faulted inputs on HMI/SCADA screens for fast troubleshooting. At roughly 0.35 kg, the module adds minimal weight to the chassis. The module requires field calibration at least once per year.

Technical FAQs

Q1: What thermocouple types does the 1746-INT4 support?
A1: Types C, D, J, K, T, E, R, S, B, and N, plus -100…100 mV DC signals.

Q2: What is the resolution and isolation rating?
A2: 16-bit resolution with 1000V transient / 150V AC channel isolation.

Q3: How is cold junction compensation accuracy rated?
A3: ±1.5°C across 0…70°C using the dedicated CJC terminal.

Product Resources

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🏷️ Tags: AC Input Module

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In-stock items are typically dispatched the same business day. For products not currently in stock, dispatch times may vary based on availability. International shipping is available, and shipping costs are calculated according to destination, weight, and carrier selection.

Returns are accepted within 30 days of receipt, provided items are unused and in original condition. Return shipping costs are the responsibility of the customer. Please contact us before returning any item to receive return authorization.

For more details, please review our Shipping & Return Policy.

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