Allen-Bradley 1746-IB32 SER.C SLC 500 Digital DC 32-Input Module 1

Allen‑Bradley 1746‑IB32 Series C is a high‑density digital DC input module for the SLC 500 PLC platform, providing 32 sinking input points for reliable monitoring of DC field devices such as sensors, switches, and pushbuttons in industrial automation systems.
Manufacturer: Allen‑Bradley (Rockwell Automation)
Manufacturer Part Number: 1746‑IB32
Series: SLC 500
Module Type: Digital DC Input Module
Revision: Series C
Number of Input Points: 32
Input Configuration: 8 points per common
Input Type: Sinking (for sourcing field devices)
Nominal Input Voltage: 24 V DC
Allowable Input Voltage Range at 50 °C (122 °F): 15–30 V DC
Allowable Input Voltage Range at 60 °C (140 °F): 15–26.4 V DC
Input Current per Point: Approximately 6 mA at 24 V DC
On-State Voltage: Minimum 15 V DC
Off-State Voltage: Maximum 5 V DC
Input Impedance: Approximately 3.9 kΩ
Isolation: No channel‑to‑channel isolation
Backplane Isolation: 500 V DC
Backplane Current Draw: 50 mA at 5 V DC
I/O Connection Type: 40‑pin removable terminal block
Wiring Method: Screw terminals
Status Indicators: One LED per input point
Addressing: 32 input bits per I/O slot
Slot Requirement: 1 SLC 500 I/O slot
Mounting: Chassis‑mounted in SLC 500 rack
Operating Temperature Range: 0 to 60 °C (32 to 140 °F)
Storage Temperature Range: ‑40 to 85 °C (‑40 to 185 °F)
Operating Humidity: 5 to 95% non‑condensing
Certifications: UL, cUL, CE, CSA
Application: Industrial digital input monitoring
Dimensions (HxWxD): Approx. 138 x 35 x 145 mm
Weight: Approx. 0.3 kg
Country of Manufacture: Japan Please review pictures carefully and let us know if you have any questions!