Allen-Bradley 1746-NI4
SLC 4 Point Analog Input Module
Read from the product label
- Maker
- Allen-Bradley
- Part no.
- 1746-NI4
- Serial / rev.
- as printed on your unit
Image is for illustrative purposes only. Please refer to product description.
Delivery options
Allen-Bradley 1746-NI4 SLC 500 analog input module, discontinued: four inputs, 16 bit sigma-delta conversion, ±20 mA or ±10V DC.
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1746-NI4
- Product family
- SLC 500 I/O Modules (1746)
- Type
- Analog input module
- Category
- PLCs and I/O › Analogue I/O modules
- Lifecycle
- Discontinued
- OEM successor
- Not stated
- Technical datasheet
- Data sheet
Technical specifications
- Manufacturer
- Allen-Bradley
- Manufacturer part no.
- 1746-NI4
- Type
- Analog input module
- Application
- I/O module
- Used with
- SLC 500 1746 chassis
- Backplane current
- 25 mA
- Number of inputs
- 4
- Backplane isolation
- 500V AC and 710V DC withstand for 1 minute
- Step response
- 60 ms
- Conversion method
- sigma-delta modulation
- Converter resolution
- 16 bit
- Full scale
- 20 mA
- Input range
- ±20 mA (nominal) ±30 mA (maximum)
- Current input coding
- ±16,384 for ±20mA
- Absolute maximum
- ±7.5V DC or 7.5V AC RMS
- Overall accuracy
- ±0.642% of full scale (maximum)
- Overall accuracy drift
- +79 ppm/°C of full scale
- Gain error @ 25 °C
- +0.323% (maximum)
- Gain error
- +0.556% (maximum)
- Gain error drift
- ±67 ppm/°C
- Overvoltage Protection (IN+ to -IN)
- 220V DC or AC RMS continuously
- Voltage input coding
- -32,768…+32,767 for +10V DC
- Overall accuracy @ 25 °C (77 °F)
- ±0.284% of full scale
- Overall Accuracy, 0…60 °C (32…140 °F)
- ±0.504% of full scale
- Overall accuracy drift (maximum)
- +63 ppm/°C of full scale (maximum)
- Gain error, 0…60 °C (32…140 °F)
- +0.461% (maximum)
Technical documents (1)
Key features
- Four analog inputs per module
- Sigma-delta modulation conversion method
- 16 bit converter resolution
- Input range of ±20 mA nominal, ±30 mA maximum
- Backplane isolation withstands 500V AC and 710V DC for 1 minute
About the Allen-Bradley 1746-NI4
The 1746-NI4 is an SLC 4 point analog input module, now discontinued. Its 4 inputs use a 16 bit sigma-delta converter with a step response of 60 ms (selection guide 1747-SG001). The nominal current range is ±20 mA, ±30 mA maximum, with a full scale of 20 mA. It draws 25 mA from the backplane.
What is the 1746-NI4 used for?
It reads four analog signals, current or voltage, into an SLC 500 system. Current input coding is ±16,384 for ±20mA, and voltage input coding is -32,768…+32,767 for +10V DC.
Lifecycle and successor
Discontinued (Rockwell Automation lifecycle status, checked 24 October 2026).
Before you order
What to photograph or confirm so the right unit is quoted.
Read the catalog number 1746-NI4, the series letter and the firmware revision from the label. Send us a photo of the label and we confirm the match before we quote.
Other parts in the Allen-Bradley SLC 500 I/O Modules family
Listed for reference. They differ from the 1746-NI4 in rating, supply, interface or function and are not interchangeable with it unless Allen-Bradley says so. Match the part number on your unit.
| Product | Type | Lifecycle | Qty Available | Price | Action |
|---|---|---|---|---|---|
| Allen-Bradley 1746-NO4VSLC 4 Point Analog Output Module | Analog output module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NR4SLC 4 Point Resistance Input Module | Analog input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-IM16SLC 16 Point 240V AC Input Module | Digital input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-ITB16SLC 16 Point 24V DC Digital Input Module | Analog input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-IV16SLC 16 Point Digital Input Module | Digital input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-IV32SLC 32 Point 24V DC Digital Input Module | Digital input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NI16ISLC 16 Point Analog Input Module | Analog input module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NIO4ISLC 4 Point Analog Current Combination Module | Analog I/O module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NIO4VSLC 4 Point Analog Voltage Comb Module | Analog I/O module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NO4ISLC 4 Point Analog Output Module | Analog output module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NO8ISLC 8 Point 20 mA Output Module | Analog output module | Discontinued | On request | On request | View |
| Allen-Bradley 1746-NO8VSLC 8 Point Analog Output Module | Analog output module | Discontinued | On request | On request | View |
You may also be interested in
Allen-Bradley
Allen-Bradley 5069-L380ERMS2
View- In stock
Allen-Bradley
Allen-Bradley 5069-L380ERMS3
View 
Allen-Bradley
Allen-Bradley 5069-L380ERS2
ViewAllen-Bradley
Allen-Bradley 5069-L4100ERMW
ViewAllen-Bradley
Allen-Bradley 5069-L4200ERMW
ViewAllen-Bradley
Allen-Bradley 5069-L450ERMW
View
Allen-Bradley
Allen-Bradley 1756-OW16I
View
Allen-Bradley
Allen-Bradley 1734-IB4
ViewAllen-Bradley
Allen-Bradley 1734-IB8
View
Allen-Bradley
Allen-Bradley 1734-IE2C
ViewAllen-Bradley
Allen-Bradley 1734-IE2V
ViewAllen-Bradley
Allen-Bradley 1734-IE4C
View
TimControls is an independent distributor. Manufacturer names and logos are the property of their respective owners and identify products we source; they do not imply manufacturer authorization or affiliation.