Allen-Bradley 1746-IB8 Digital Input Module

The 1746-IB8 is a digital input module from the Allen-Bradley SLC 500 series. It offers 8 sinking input channels, each rated for 24V DC. The module operates in general-purpose industrial environments and is approved for hazardous locations with Class 1, Division 2, Groups A, B, C, and D classifications. It is a reliable choice for controlling and monitoring digital DC inputs.

Technical Specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Part Number: 1746-IB8
• Series: SLC 500
• Module Type: Digital DC Input Module
• Input Voltage Range: 10-30V DC (Sink)
• Nominal Input Current: 8mA at 24V DC
• Off-State Current: 1mA
• Backplane Current: 50mA at 5V DC
• Signal Delay: 8ms (ON and OFF)
• Power Dissipation: 1.3W (max 1.9W)
• Heat Dissipation: 4.4 BTU/hr
• Weight: 0.35 lbs

Environmental Specifications

• Operating Temperature Range: 0-60°C (32-140°F)
• Humidity: 5-95%, non-condensing
• Vibration Resistance: 2.5G at 57-500Hz
• Shock Rating: 30G

Certification and Compliance

• Dielectric Withstand Voltage: 1500V AC
• Isolation: 500V (communication circuits), 1500V (backplane-to-inputs)
• Certifications: UL, CE, NEMA ICS 2-230 Noise Immunity