Allen-Bradley 1746-NI4 SER.A SLC 500 Analog Input Module, 4-Channel

The Allen‑Bradley 1746‑NI4 Series A is a 4‑channel differential analog input module for SLC 500 systems, designed to accurately acquire low‑level voltage and current signals from industrial sensors and transmitters in rack‑mounted PLC installations. Manufacturer: Allen‑Bradley (Rockwell Automation) Product Line: SLC 500 Catalog Number: 1746‑NI4 Series: A Module Type: Analog Input Module Number of Input Channels: 4 Input Configuration: Differential Input Signal Types: Voltage and Current Voltage Input Ranges: ±10 VDC, ±5 VDC, 0–10 VDC, 0–5 VDC, 1–5 VDC Current Input Ranges: 0–20 mA, 4–20 mA Maximum Input Current: 20 mA per channel Resolution: 16 bits Data Format: Signed integer Accuracy: ±0.05% full scale at 25 °C Repeatability: ±1 LSB Input Impedance (Voltage): >1 MΩ Input Impedance (Current): 250 Ω nominal Conversion Time: Approx. 8 ms per channel Isolation: Group isolated Isolation Rating: 1500 VAC between field wiring and backplane Backplane Current Draw: Approximately 85 mA at 5 VDC External Power Requirement: None Power Source: SLC 500 backplane Mounting Type: Rack mount (slot‑mounted in SLC 500 chassis) Wiring Method: Removable Terminal Block (RTB) RTB Type: 1746‑RT25A or equivalent Status Indicators: Front‑panel LED indicators Operating Temperature: 0 to 60 °C (32 to 140 °F) Storage Temperature: –40 to 85 °C (–40 to 185 °F) Relative Humidity: 5–95% non‑condensing Module Style: Open style Certifications: UL Listed, CSA Certified, CE Marked Typical Applications: Pressure, temperature, flow, and level measurement Country of Manufacture: United States Please review pictures carefully and let us know if you have any questions!