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1746-IA8 | Allen-Bradley SLC 500 8-Channel AC Digital Input Module
- Regular price
- $219.00
- Sale price
- $219.00
- Regular price
-
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Product Description P/N: 1746-IA8
Description
The Allen-Bradley 1746-IA8 is an AC digital input module from the SLC 500 series. It provides 8 input channels rated for 100–120V AC operation and is designed for reliable integration into industrial control systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen Bradley |
| Category | PLCs and Accessories |
| Part Number | 1746-IA8 |
| Subcategory | PLC Expansion Modules |
| Product Line | SLC 500 |
| Module Type | Digital AC Input Module |
| Voltage Range | 85–132 V AC |
| Number of Inputs | 8 |
| Backplane Current (5 V DC) | 50 mA |
| Signal Delay | 35 or 45 ms |
| Off State Current | 2 mA |
| Slots Required | 1 |
| I/O Connection | 1746-HT and 1746-HCA |
| Step Response | 100 ms in, 2.5 ms out |
| Mounting Type | Open style, rack-mountable |
| Discontinued Date | 08/20/2018 |
| Weight | 0.38 lbs (0.17 kg) |
Information About 1746-IA8
The 1746-IA8 is part of the Allen-Bradley SLC 500 I/O module family, providing 8 grouped AC digital input channels within an operating range of 85–132V AC at 47–63 Hz. It supports a nominal input current of 12 mA at 120V AC, with response times of up to 35 ms ON and 45 ms OFF, and a maximum off-state current of 2 mA. The module ensures electrical protection with 500V DC isolation for communication and 1500V AC at the backplane, while dissipating 0.27 W per point and 2.4 W maximum. Consuming 50 mA from the 5V DC backplane, it installs in a single chassis slot and works with 1746-HT and 1746-HCA connections, offering compact size and hazardous location approval for safe industrial use.
Key Features:
- Channel density: 8 AC input points arranged in a single group for compact expansion of SLC 500 I/O.
- Voltage & frequency window: Operates from 85–132V AC (100–120V AC nominal) at 47–63 Hz to accommodate common plant power variations.
- Input current & thresholds: Nominal input current of 12 mA at 120V AC with a maximum OFF-state current of 2 mA and maximum OFF-state voltage of 30V AC for reliable state discrimination.
- Response timing: Signal ON delay up to 35 ms and OFF delay up to 45 ms, optimized for clean acquisition of AC field signals.
- Isolation & safety: 500V DC isolation at the communication circuit and 1500V AC at the backplane, plus North American Hazardous Location Approval for certified operation in specified hazardous areas.
- Thermal performance: 0.27 W heat dissipation per point (0.25 W minimum) and 2.4 W total, supporting accurate enclosure thermal budgeting.
- Power & form factor: Draws 50 mA at 5V DC from the backplane, occupies one chassis slot, and includes status indication for straightforward diagnostics.
- Connectivity & installation: Compatible with 1746-HT and 1746-HCA I/O connections; chassis-mount construction rated for 32–140 °F (0–60 °C) operation with a compact 5" × 2" × 6" (13 × 5 × 15 cm) footprint and 0.23 kg weight.
The 1746-IA8 delivers the reliability and precision required for AC signal monitoring in SLC 500 automation systems.
Description
The Allen-Bradley 1746-IA8 is an AC digital input module from the SLC 500 series. It provides 8 input channels rated for 100–120V AC operation and is designed for reliable integration into industrial control systems.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Allen Bradley |
| Category | PLCs and Accessories |
| Part Number | 1746-IA8 |
| Subcategory | PLC Expansion Modules |
| Product Line | SLC 500 |
| Module Type | Digital AC Input Module |
| Voltage Range | 85–132 V AC |
| Number of Inputs | 8 |
| Backplane Current (5 V DC) | 50 mA |
| Signal Delay | 35 or 45 ms |
| Off State Current | 2 mA |
| Slots Required | 1 |
| I/O Connection | 1746-HT and 1746-HCA |
| Step Response | 100 ms in, 2.5 ms out |
| Mounting Type | Open style, rack-mountable |
| Discontinued Date | 08/20/2018 |
| Weight | 0.38 lbs (0.17 kg) |
Information About 1746-IA8
The 1746-IA8 is part of the Allen-Bradley SLC 500 I/O module family, providing 8 grouped AC digital input channels within an operating range of 85–132V AC at 47–63 Hz. It supports a nominal input current of 12 mA at 120V AC, with response times of up to 35 ms ON and 45 ms OFF, and a maximum off-state current of 2 mA. The module ensures electrical protection with 500V DC isolation for communication and 1500V AC at the backplane, while dissipating 0.27 W per point and 2.4 W maximum. Consuming 50 mA from the 5V DC backplane, it installs in a single chassis slot and works with 1746-HT and 1746-HCA connections, offering compact size and hazardous location approval for safe industrial use.
Key Features:
- Channel density: 8 AC input points arranged in a single group for compact expansion of SLC 500 I/O.
- Voltage & frequency window: Operates from 85–132V AC (100–120V AC nominal) at 47–63 Hz to accommodate common plant power variations.
- Input current & thresholds: Nominal input current of 12 mA at 120V AC with a maximum OFF-state current of 2 mA and maximum OFF-state voltage of 30V AC for reliable state discrimination.
- Response timing: Signal ON delay up to 35 ms and OFF delay up to 45 ms, optimized for clean acquisition of AC field signals.
- Isolation & safety: 500V DC isolation at the communication circuit and 1500V AC at the backplane, plus North American Hazardous Location Approval for certified operation in specified hazardous areas.
- Thermal performance: 0.27 W heat dissipation per point (0.25 W minimum) and 2.4 W total, supporting accurate enclosure thermal budgeting.
- Power & form factor: Draws 50 mA at 5V DC from the backplane, occupies one chassis slot, and includes status indication for straightforward diagnostics.
- Connectivity & installation: Compatible with 1746-HT and 1746-HCA I/O connections; chassis-mount construction rated for 32–140 °F (0–60 °C) operation with a compact 5" × 2" × 6" (13 × 5 × 15 cm) footprint and 0.23 kg weight.
The 1746-IA8 delivers the reliability and precision required for AC signal monitoring in SLC 500 automation systems.
