1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
    1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
    1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs
1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs

1794-IA8 | Allen-Bradley Flex I/O Input Module, 120VAC, 8 Inputs

Part #: 1794-IA8 Manufactured by: Allen-Bradley
$243.00
$243.00
5 in Stock
Condition: New-Surplus Original Box
Shipping calculated at checkout.
Product Overview
The Allen-Bradley 1794-IA8 Flex I/O AC Digital Input Module has 8 Non-Isolated Inputs, a 65V AC On-state Voltage min., and...  Read more
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Product Description P/N: 1794-IA8

Description / Specifications

Description 

The Allen-Bradley 1794-IA8 input module is a discrete input module with 8 inputs. It is part of the Flex I/O 1794 series. The 1794-IA8 input module is an AC-powered input module with a nominal voltage rating of 120 Volts AC. It is an open-style module with an IP 20 environmental protection rating that mounts on a DIN Rail. The 1794-IA8 input modules 8 inputs are not isolated from each other.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-IA8
Product Type Flex I/O AC Digital Input Module
Inputs 8 Non-Isolated
On-state Voltage min. 65V AC
On-state Voltage max. 132V AC
On-state Current min. 7.1mA
On-state Current max. 14.32mA
Off-state Voltage max. 43V AC
Off-state Current min. 2.9mA
Nominal Input Current 12 mA @ 120V AC
Flexbus Current 30mA @ 5V DC
Power Dissipation 4.5W @ 132V AC max.
Series A

  

 

Information About 1794-IA8

The Allen-Bradley 1794-IA8 is a FLEX 120 Volts AC Digital I/O module. It features 8 non-isolated inputs and it converts AC signals to the appropriate logic level for use within the processor. It comes with 8 yellow status indicators and can be mounted on a DIN rail or a panel mount. The 1794-IA8 also has various communication interfaces available like DeviceNet, ControlNet, Profibus DP, and EtherNet/IP. This module has a total measurement of 3.7 x 2.7 x 3.7 inches and an open-type enclosure and it is compatible with 22 to 12 AWG stranded copper wire. It can be attached to the following terminal base units: the 1794-TB3K, 1794-TBN, 1794-TB3SK, 1794-TB2, 1794-TBNK, 1794-TB3, 1794-TBKD, and the 1794-TB3S. It has 8 key switch positions.

The 1794-IA8’s voltage is 85 to 132 Volts AC at 47 to 63 Hertz. It also has a minimum on-state voltage of 65 Volts AC, a nominal voltage of 120 Volts AC, a maximum on-state voltage of 132 Volts AC, and an off-state voltage of 43 Volts AC. Its nominal current is 12 mA at 120 Volts AC, 60 Hertz. The module has an isolation voltage of 2150 Volts DC, which is for 1 seconds between the system and the user, a FlexBus current of 30 mA at 5 Volts DC, and a bus rating of 30 mA at 5 Volts DC. Its power dissipation is 4.5 W maximum at 132 Volts AC and its thermal dissipation is 15.3 BTU/hour. The default filter time for the module from OFF to ON is 8.4 milliseconds and it is 26.4 milliseconds from ON to OFF. It has a relative humidity of 5 to 95% (non-condensing), an operating temperature of -20 to 55 degrees Celsius, and a non-operating temperature of -40 to 85 degrees Celsius. The module also has an operating vibration of 5g at 10 to 500 Hertz, an operating shock of 30g, and a non-operating shock of 50g.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1794-IA8
Question: What is the Allen-Bradley 1794-IA8 used for?
Date Update:27/05/2025
Answer:

The 1794-IA8 is an AC digital input module used to detect signals from field devices such as switches, sensors, and other discrete sources in industrial automation systems. It is part of the FLEX I/O system, which allows modular expansion and flexible configuration of control systems. This module accepts 120V AC signals and converts them into logic-level inputs for a controller.

Question: Is the 1794-IA8 compatible with specific terminal base units?
Date Update:27/05/2025
Answer:

Yes, it is compatible with several terminal base units including 1794-TB3K, 1794-TBN, 1794-TB3SK, 1794-TB2, and others. These bases facilitate wiring and simplify module replacement or expansion. The keying feature ensures correct module installation.

Question: How many input channels does the 1794-IA8 module provide?
Date Update:27/05/2025
Answer:

This module provides 8 non-isolated input channels. All inputs share a common signal return, meaning they are not electrically isolated from each other. It is important to ensure that all input devices operate at compatible voltage levels to avoid interference.

Question: What is the input voltage and frequency range of the 1794-IA8?
Date Update:27/05/2025
Answer:

The 1794-IA8 operates within an input voltage range of 85–132V AC and supports frequencies from 47 to 63 Hz. The nominal voltage is 120V AC, which is typical for North American power standards. It is suitable for use with standard AC control signals in industrial applications.

Question: Is the 1794-IA8 module still being manufactured?
Date Update:27/05/2025
Answer:

Yes, the 1794-IA8 remains a currently supported and widely used module in the FLEX I/O family. It continues to be available through Rockwell Automation and authorized distributors. However, it's always best to confirm availability or potential migration recommendations with your local distributor or Rockwell representative.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1794-IA8 input module is a discrete input module with 8 inputs. It is part of the Flex I/O 1794 series. The 1794-IA8 input module is an AC-powered input module with a nominal voltage rating of 120 Volts AC. It is an open-style module with an IP 20 environmental protection rating that mounts on a DIN Rail. The 1794-IA8 input modules 8 inputs are not isolated from each other.

 

Technical Specifications 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1794-IA8
Product Type Flex I/O AC Digital Input Module
Inputs 8 Non-Isolated
On-state Voltage min. 65V AC
On-state Voltage max. 132V AC
On-state Current min. 7.1mA
On-state Current max. 14.32mA
Off-state Voltage max. 43V AC
Off-state Current min. 2.9mA
Nominal Input Current 12 mA @ 120V AC
Flexbus Current 30mA @ 5V DC
Power Dissipation 4.5W @ 132V AC max.
Series A

  

 

Information About 1794-IA8

The Allen-Bradley 1794-IA8 is a FLEX 120 Volts AC Digital I/O module. It features 8 non-isolated inputs and it converts AC signals to the appropriate logic level for use within the processor. It comes with 8 yellow status indicators and can be mounted on a DIN rail or a panel mount. The 1794-IA8 also has various communication interfaces available like DeviceNet, ControlNet, Profibus DP, and EtherNet/IP. This module has a total measurement of 3.7 x 2.7 x 3.7 inches and an open-type enclosure and it is compatible with 22 to 12 AWG stranded copper wire. It can be attached to the following terminal base units: the 1794-TB3K, 1794-TBN, 1794-TB3SK, 1794-TB2, 1794-TBNK, 1794-TB3, 1794-TBKD, and the 1794-TB3S. It has 8 key switch positions.

The 1794-IA8’s voltage is 85 to 132 Volts AC at 47 to 63 Hertz. It also has a minimum on-state voltage of 65 Volts AC, a nominal voltage of 120 Volts AC, a maximum on-state voltage of 132 Volts AC, and an off-state voltage of 43 Volts AC. Its nominal current is 12 mA at 120 Volts AC, 60 Hertz. The module has an isolation voltage of 2150 Volts DC, which is for 1 seconds between the system and the user, a FlexBus current of 30 mA at 5 Volts DC, and a bus rating of 30 mA at 5 Volts DC. Its power dissipation is 4.5 W maximum at 132 Volts AC and its thermal dissipation is 15.3 BTU/hour. The default filter time for the module from OFF to ON is 8.4 milliseconds and it is 26.4 milliseconds from ON to OFF. It has a relative humidity of 5 to 95% (non-condensing), an operating temperature of -20 to 55 degrees Celsius, and a non-operating temperature of -40 to 85 degrees Celsius. The module also has an operating vibration of 5g at 10 to 500 Hertz, an operating shock of 30g, and a non-operating shock of 50g.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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