Product Summary
The Allen-Bradley 1746-IA8 is an 8-channel digital AC input module for the SLC 500 series. This module operates on a voltage range of 85-132 Volts AC. It features North American Hazardous Location Approval for demanding industrial environments. The module provides reliable general-purpose input monitoring for your automation system.
Expert Technical Evaluation & Performance Review
Voltage and Power Specifications
The 1746-IA8 module accepts a nominal input voltage of 100/120 Volts AC. Its operating range spans from 85 to 132 Volts AC for stable performance. The module draws a backplane current of 50 milliamps at 5 Volts DC. It requires no current at 24 Volts DC for operation. The nominal input current reaches 12 milliamps at 120 Volts AC. This module dissipates a maximum of 2.4 Watts of thermal energy.
Signal Processing and Response Times
The 1746-IA8 delivers a maximum signal ON delay of 35 milliseconds. Its maximum signal OFF delay reaches 45 milliseconds for reliable switching. The step response measures 100 milliseconds for input and 2.5 milliseconds for output. The module maintains an off-state current of 2 milliamps maximum. The maximum inrush current hits 0.8 Amps with a duration of 0.5 milliseconds.
Environmental and Isolation Ratings
This module provides isolation voltage of 500 Volts DC at the communication circuit. It also delivers 1500 Volts AC at the back-plane for safety. The operating temperature range spans from 32 to 140 degrees Fahrenheit. The operating frequency covers 47 to 63 Hz for global compatibility. The module weighs only 0.23 kg for easy handling.
Mechanical and Mounting Details
The 1746-IA8 uses a chassis-type mounting system for secure installation. Its dimensions measure 5 inches by 2 inches by 6 inches. The module occupies exactly one slot in the SLC 500 chassis. It features a status display and an open-style enclosure for visibility. The I/O connection uses 1746-HT and 1746-HCA wiring assemblies.
Hazardous Location Compliance
The module holds North American Hazardous Location Approval for safe operation. This certification permits use in specific classified hazardous environments. Engineers can deploy this module in areas with volatile materials. The approval ensures compliance with strict industrial safety standards.
Logistics & Standard Packaging Details
- One Allen-Bradley 1746-IA8 digital AC input module
- Standard anti-static packaging for safe transport
- Product documentation including installation guidelines
- Express delivery shipping available via FedEx, UPS, and DHL
