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1746-IA8 | Allen-Bradley SLC 500 8-Channel AC Digital Input Module
- Regular price
- $283.05
- Sale price
- $283.05
- 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
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1746-IA8 |
| Series | SLC 500 |
| Module Type | Digital AC Input Module |
| Voltage Range | 85-132 Volts AC |
| Inputs | 8 |
| Backplane Current (5 Volts DC) | 50 milliamps |
| Signal delay | 35 or 45 milliseconds |
| Off State Current | 2 milliamps |
| Slots | 1 |
| I/O Connection | 1746-HT and 1746-HCA |
| Step Response | 100 milliseconds in, 2.5 milliseconds out |
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.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other 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
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1746-IA8 |
| Series | SLC 500 |
| Module Type | Digital AC Input Module |
| Voltage Range | 85-132 Volts AC |
| Inputs | 8 |
| Backplane Current (5 Volts DC) | 50 milliamps |
| Signal delay | 35 or 45 milliseconds |
| Off State Current | 2 milliamps |
| Slots | 1 |
| I/O Connection | 1746-HT and 1746-HCA |
| Step Response | 100 milliseconds in, 2.5 milliseconds out |
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.
Manufacturer information
Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.
