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Includes a PDF Electric and Supply warranty.

(Never Used)


31 In Stock

3 Yr PDF Supply warranty

What is Surplus?



27 In Stock

2 Yr PDF Supply Warranty

What is Refurbished?

Repair Service


5-10 Days

2 Yr PDF Supply warranty


Other Available Revisions for the 1756-IB32 1756-IB32/A1756-IB32/B

Common misspellings:
  • l756-IB32
  • 1756-1B32
  • 1756-lB32
  • 1756-I832
  • 1756IB32

Technical Specifications for 1756-IB32

ManufacturerAllen-Bradley / Rockwell Automation
Part Number1756-IB32
Product TypeDigital Input Module
Number of Inputs32
Voltage TypeDC
Operating Voltage10 to 31.2 Volts DC
Sink Voltage12 to 24 Volts DC
Self DiagnosticsSupported
Heat Dissipation21.1 BTU per hour at 140 degrees Fahrenheit

The 1756-IB32 is a 32-input module from Allen-Bradley and from the ControlLogix family. The module is a digital I/O module with 32 inputs in 2 groups of 16 points. The 1756-IB32 is mounted to the chassis with the terminal blocks or RTB which are either the 1756-TBCH or 1756-TBS6H. It is recommended to operate the 1756-IB32 within a temperature range of 0 to 60 degrees Celsius. The humidity of the environment in which the module is operated should be non-condensing within the range of 5 to 95%. It is necessary to maintain the temperature and the humidity to obtain optimal performance of the system. Additionally, the users can install cooling fans to lower the temperature inside the enclosure in case the temperature in the enclosure exceeds the prescribed limits.

The 1756-IB32 has software installed which is the RSLogix 5000 software with version 8.02.00 or later. The module comes in an open enclosure type and it is equipped with reverse polarity protection and a configurable software which can detect a change of state. The input operating voltage for the 1756-IB32 is 12 to 24 Volts DC and the nominal input voltage is 24 Volts DC. The operating voltage range is 10 to 31.2 Volts DC. The minimum operating current is 2 mA and the maximum operating current is 5.5 mA. The power dissipation of the module is 6.2 Watts. The 1756-IB32 has a backplane current of 120 mA at 5 Volts DC and a backplane current of 2 mA at 24 Volts DC. The thermal dissipation for the 1756-IB32 is 21.1 BTU/hour.

The Allen-Bradley 1756-IB32 module is a ControlLogix series digital input module with 32 input channels. The 1756-IB32 digital input module uses DC voltage to operate, and its operating voltage range is from 10 to 31.2 Volts DC. It also supports 12 to 24 Volts DC sink voltage. The 1756-IB32 digital input module supports module keying which can be done electronically and which is software-configurable. The current ratings for the 1756-IB32 digital input module include 5.5 milliamps of maximum operating current, 1.5 milliamps of maximum off-state input current, 120 milliamps of maximum backplane current at a voltage of 5 Volts DC, 100 milliamps of maximum backplane current at a voltage 5.1 Volts DC, and 2 milliamps of maximum backplane current at a voltage of 24 Volts DC.


The Allen-Bradley 1756-IB32 ControlLogix digital input module with 32 input channels was meant to be connected to an Allen-Bradley terminal block such as the 1756-TBCH terminal block or the 1756-TBSH terminal block. The terminal block will host all of the wiring for the 1756-IB32 digital input module, which makes it easy to install the input module as well as easy to remove it or replace it when necessary. During operation, this input module dissipates about 21.1 BTU per hour at an ambient temperature of 140 degrees Fahrenheit or 60 degrees Celsius. The maximum inrush current rating for the 1756-IB32 digital input module is 250 milliamps. The 1756-IB32 input module comes with self-diagnostics features that allow it to detect faults and errors before they can cause serious damage to it and that allow the users to take quick action to correct the faults.

The 1756-IB32 input module from Allen-Bradley is a ControlLogix series input module that features 32 inputs. It supports an operating voltage range of 10 to 31.2 Volts DC and a sink voltage range of 12 to 24 Volts DC.

F.A.Q for 1756-IB32

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