• Allen-Bradley 1746-IA8
  • Allen-Bradley 1746-IA8
  • Allen-Bradley 1746-IA8
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Allen-Bradley 1746-IA8 SLC 500 8-Channel 120V AC Input Module

Allen-Bradley 1746-IA8 SLC 500 8-Channel 120V AC Input Module

Description

The Allen-Bradley 1746-IA8 is a high-density digital input module designed for use within the SLC 500 programmable controller system. This module provides 8 input channels, specifically engineered to interface with...

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SKU: 1746-IA8
Vendor: Allen-Bradley
Category: PLC I/O Module
Related Series:

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Description

The Allen-Bradley 1746-IA8 is a high-density digital input module designed for use within the SLC 500 programmable controller system. This module provides 8 input channels, specifically engineered to interface with 100/120V AC field devices. It serves as a critical component for monitoring AC-powered sensors, limit switches, and pushbuttons, converting field-level AC signals into logic-level signals compatible with the SLC 500 processor.

Features

  • 8-channel digital input configuration.
  • Designed for 100/120V AC input voltage ranges.
  • Compatible with standard SLC 500 I/O chassis.
  • Optical isolation between field-side and logic-side circuitry to protect the controller from electrical noise and transients.
  • Status indicators for each channel to facilitate rapid troubleshooting and diagnostics.

Technical Specifications

Manufacturer Allen-Bradley
Model 1746-IA8
Module Type AC Input Module
Number of Inputs 8
Voltage Category 100/120V AC
Status Discontinued (Manufacturer date: 2018-08-19)

Installation Guidelines

  • Ensure the SLC 500 chassis power is disconnected before installing or removing the module to prevent electrical shock or damage.
  • Align the module carefully with the chassis backplane connector and slide it into the desired slot until the locking tabs engage.
  • Use appropriate shielded cabling for input signals to minimize electromagnetic interference (EMI) in industrial environments.
  • Ensure all field wiring is properly terminated to the removable terminal block and that the terminal block is securely seated on the module.
  • Maintain adequate clearance around the module to ensure proper airflow and cooling within the control cabinet.
  • Follow standard ESD (Electrostatic Discharge) precautions when handling the module to protect internal components.

FAQ

Is the 1746-IA8 still supported by the manufacturer?

The 1746-IA8 was officially discontinued by Allen-Bradley on August 19, 2018. While it is no longer in active production, it remains widely available through secondary market channels for maintenance and legacy system support.

Can I use this module with any SLC 500 processor?

Yes, the 1746-IA8 is designed to be compatible with standard SLC 500 I/O chassis and can be used with any SLC 500 processor that supports the 1746 I/O platform, provided the system power supply has sufficient capacity for the module's current draw.