Allen-Bradley 746-IV32
Allen-Bradley 1746-IV32
Allen-Bradley 1746-IV32
Allen-Bradley 746-IV32
Allen-Bradley 1746-IV32
Allen-Bradley 1746-IV32
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  • Lifecycle status

    Discontinued
    Discontinued date: 2022-11-24

1746-IV32

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Allen-Bradley 1746-IV32 is a 32-point 24 V DC sourcing input module with four eight-point groups for high-density SLC 500 installations.
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Technical specifications for 1746-IV32

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1746-IV32
  • Product Family:
    SLC 500
  • Product Type:
    32-Point 24 V DC Sourcing Input Module
  • Stock:
    1
  • Module Type:
    High-density DC sourcing input module
  • Inputs:
    32; four groups of 8 points
  • Input Voltage:
    24 V DC nominal
  • Operating Range:
    15–30 V DC at 50 °C; 15–26.4 V DC at 60 °C
  • Input Current:
    5.1 mA nominal at 24 V DC
  • Voltage Category:
    24 V DC signal input (sourcing)
  • Number of Inputs:
    32
  • Input Groups:
    4 groups of 8 inputs
  • Points per Common:
    8
  • Maximum Signal Delay:
    3 ms on; 3 ms off
  • Maximum Off-state Voltage:
    5 V DC
  • Maximum Off-state Current:
    1.6 mA
  • Operating Temperature:
    0–60 °C
  • Storage Temperature:
    -40–85 °C
  • Relative Humidity:
    5–95%, non-condensing
  • Weight:
    0.2 kg
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Input Groups Connector Wiring Series & Addressing Application
  • Thirty-two sourcing inputs arranged as four groups of eight
  • High-density 40-pin 1746-N3 field connector
  • Operating-voltage derating applies at 60 °C

1746-IV32 provides thirty-two 24 V DC sourcing inputs in four groups of eight. The high-density module uses a 1746-N3 40-pin connector rather than a standard removable terminal block.

The field devices must be compatible sinking devices. Published operating range is 15–30 V DC at 50 °C and 15–26.4 V DC at 60 °C.

Series differences matter: official instructions identify internal fuse differences between earlier and later hardware. Preserve group isolation, connector pinout, addressing convention and terminal-interface compatibility during replacement.

Availability, condition, price, and shipping time for 1746-IV32 are confirmed during quotation.

Allen-Bradley 1746-IV32 32-Point 24 V DC Sourcing Input Module Manuals, Links

Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

  • Thirty-two sourcing inputs are divided into four groups
  • Each group contains eight input points
  • Group V DC connections must remain correctly isolated
  • Use the 1746-N3 keyed 40-pin connector
  • Verify every conductor against the official pinout
  • Preserve group separation when using a 1492 interface
  • Series A through C and Series D have different fuse arrangements
  • SLC addressing is shown in decimal notation
  • PLC addressing references may use octal notation
  • High-density 24 V DC input collection
  • Grouped sinking-sensor interfaces
  • Replacement of a verified 1746-IV32 installation
Description
Allen-Bradley 1746-IV32 is a high-density 24 V DC sourcing input module for SLC 500 control systems.

The module provides thirty-two input points arranged in four groups of eight, with a 3 ms maximum on or off input delay and temperature-dependent operating limits.

Before installation or replacement, match compatible sinking field devices, verify the 1746-N3 40-pin field connector, check the temperature-specific voltage range, and confirm backplane loading and enclosure heat dissipation.
Revisions

Revision Part #

Also known as

1746-IV32 Ser A
1746-IV32/A, Series A, Rev A
1746-IV32 Ser C
1746-IV32/C, Series C, Rev C
1746-IV32 Ser B
1746-IV32/B, Series B, Rev B
1746-IV32 Ser D
1746-IV32/D, Series D, Rev D
Alternative Names
1746-IV32 1746IV32 1746 IV32 Allen-Bradley 1746-IV32 Allen Bradley 1746-IV32 Rockwell Automation 1746-IV32 SLC 500 1746-IV32
Technical notes
Allen-Bradley 1746-IV32 is a grouped sourcing input module. Confirm hardware Series, 1746-N3 connector wiring, and preserved group isolation before replacement.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
What field-device polarity is required by Allen-Bradley 1746-IV32?
The module sources input current, so use compatible sinking field devices. Verify every group’s V DC feed, common reference, sensor leakage, and polarity.
Can Allen-Bradley 1746-IV32 be wired through a 1492 interface module?
Only when the interface is explicitly mapped for the 1746-N3 40-pin connector and the module’s four input groups. Verify the pinout, group isolation, fusing, and cable assembly before connection.
Why must the hardware Series of Allen-Bradley 1746-IV32 be checked?
Official instructions distinguish internally fused Series A through C hardware from unfused Series D hardware. Protection and troubleshooting practices therefore depend on the actual label.
How should isolation be preserved when wiring Allen-Bradley 1746-IV32?
Keep the four eight-point V DC groups separated as designed and select a compatible terminal interface. Verify that no jumper defeats required group isolation.
Why do some Allen-Bradley 1746-IV32 documents show different address numbers?
Rockwell notes that SLC examples use decimal notation while PLC references may use octal. Confirm the controller platform and address convention before interpreting the point number.
Can Allen-Bradley 1746-IV32 replace a sinking input module?
No direct substitution should be assumed. Sourcing and sinking architectures require opposite field-device behavior and different wiring; review sensors, commons, program mapping, and protection.
Why might one eight-point group of Allen-Bradley 1746-IV32 stop responding?
Check that group’s V DC feed, common path, connector pins, cable, terminal interface, and applicable protection before concluding that the entire module has failed.