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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.
| 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) |
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.
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.