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1746-NI4I Allen-Bradley SLC 500 4-Channel Isolated Current Analog Input Module
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1746-NI4I Allen-Bradley SLC 500 4-Channel Isolated Current Analog Input Module
| Place of Origin | USA |
| Brand Name | Allen Bradley |
| Certification | COO & COC |
| Model Number | 1746-NI4I |
Product Details
Customer Courier A/C:
Yes – DHL/FedEx/UPS Account Accepted
Trade Terms:
EXW, DAP, FOB, CIF
Condition:
Brand New And Original
Packing Size:
123 Mm × 35 Mm × 115 Mm
Shipping Weight:
0.4 Kg
Shipping:
DHL (default) / FedEx / UPS / TNT / Air / Sea
Payment & Shipping Terms
Minimum Order Quantity
1
Price
$450
Packaging Details
Brand new and original
Delivery Time
3-5 days
Payment Terms
T/T,Alipay,Paypal
Supply Ability
99+
Product Description
Product pictures
Product Overview: Allen-Bradley 1746-NI4I
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Catalog Number | 1746-NI4I (often mis-typed as 1746-NIO4I) |
| Product Family | SLC 500 (1746) I/O |
| Product Type | Analog input module – isolated current input |
Application & Fault Scenarios
Typical Uses: The 1746-NI4I reads isolated 4–20 mA process signals in SLC 500-based control systems — flow meters, pressure transmitters, level transmitters, valve positioners and analytical instruments. Its 250 VAC channel-to-backplane isolation makes it suitable for installations where ground loops or common-mode noise would corrupt readings on non-isolated cards. Common in water/wastewater lift stations, chemical dosing skids, HVAC plants and legacy packaging lines.
Common Field Issues:
Related products
| 1746-NI4 | 1746-NI8 |
| 1746-NIO4V | 1746-NT4 |
| 1746-NT8 | 1746-NRG8 |
| 1746-NO4I | 1746-NO8V |
| 1746-OF4 | 1746-OF8 |
| 1746-NIA8 | 1746-NIA16 |
| 1746-FIO4 | 1746-IB16 |
| 1746-OB16 | 1746-IA8 |
| 1746-IC16 | 1746-BAS |
| 1746-A7 | 1746-P4 |
FAQ
Q1: What is the Allen-Bradley 1746-NI4I?
A: It is a 4-channel isolated current analog input module for the SLC 500 system. Each channel accepts -20…+20 mA or 4…20 mA, with 16-bit resolution and 250 VAC channel-to-backplane isolation, configured in RSLogix 500.
A: It is a 4-channel isolated current analog input module for the SLC 500 system. Each channel accepts -20…+20 mA or 4…20 mA, with 16-bit resolution and 250 VAC channel-to-backplane isolation, configured in RSLogix 500.
Q2: Can the 1746-NI4I accept 0-10V or ±10V signals?
A: No. The NI4I is current-input only. For voltage signals use 1746-NI4 (4-ch isolated voltage/current) or 1746-NIO4V. Note also that 0–20 mA unipolar ranges are not supported natively — use 4–20 mA transmitters or scale accordingly.
A: No. The NI4I is current-input only. For voltage signals use 1746-NI4 (4-ch isolated voltage/current) or 1746-NIO4V. Note also that 0–20 mA unipolar ranges are not supported natively — use 4–20 mA transmitters or scale accordingly.
Q3: Does the 1746-NI4I need external power?
A: No. It draws power from the SLC 500 backplane (approx. 150 mA at 5 V DC). However, the field transmitters still require their own 24 V loop supply — the module does not provide loop power.
A: No. It draws power from the SLC 500 backplane (approx. 150 mA at 5 V DC). However, the field transmitters still require their own 24 V loop supply — the module does not provide loop power.
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