1746-IH16 SLC 500 Series 16-Point DC Input Module | Allen-Bradley

Description

Allen-Bradley 1746-IH16 SLC 500 125V DC Input Module

The Allen-Bradley 1746-IH16 is a 16-point DC input module designed for the SLC 500 series. It operates reliably in Class 1 Division 2 hazardous locations and standard industrial settings. For complete installation and wiring details, download the full manual here.

Key Technical Specifications

• Brand: Allen-Bradley

• Model: 1746-IH16

• Module Type: 125V DC Digital Input, Sinking

• Number of Inputs: 16 points

• Operational Voltage Range: 90 – 146V DC

• Nominal Input Voltage: <span style=”color:red;”>125V DC</span>

• Backplane Current Draw: 85 mA at 5V DC

• Input Delay Time: 9 milliseconds

• Off-State Leakage Current: 0.8 mA

• Power Dissipation: 5.17 Watts

• Input Current: 2.15 mA at 125V DC

Environmental & Durability Ratings

• Operating Temperature: 0 to 60 °C (32 to 140 °F)

• Storage Temperature: -40 to 85 °C (-40 to 185 °F)

• Humidity Tolerance: 5-95% (non-condensing)

• Operational Shock: 30G

• Operational Vibration: 2.5G at 57-2000 Hz

• Noise Immunity: NEMA ICS 2-230 compliant

• Safety Certifications: C-UL and CSA certified

Frequently Asked Questions (FAQ)

• What does “current sinking” mean for this module?
  The input circuit completes a path to ground (sinks current) when an external device provides a voltage signal.

• How many input points can be active at the same time?
  This depends on the voltage. You can have 16 points ON at 125V DC, 14 at 132V DC, or 12 at 146V DC.

• What is the isolation rating of this input module?
  The module provides robust circuit isolation between the field inputs and the backplane control logic.

• Is this module suitable for use in safety-critical systems?
  Always consult your control system safety guidelines and ensure this module meets all necessary requirements for your application.

• What is the typical lifespan of this module?
  With proper installation and within its specified environmental limits, the module offers a long operational life typical of Allen-Bradley components.

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