Rated 4.8 with 12 reviews

1794-IA8I

Revisions: Ser A

Description:   The Allen-Bradley 1794-IA8I Flex I/O AC Digital Input Module has 8 Isolated Inputs, a 65V AC On-state Voltage min., and a 132V AC On-state Voltage max.. It also operates with a 14.32mA On-state Current max. and a 43V AC Off-state Voltage max..

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About 1794-IA8I

The Allen-Bradley 1794-IA8I is a Flex 1794 Digital AC Input module. It is fitted inside the terminal bus making a connection with the field devices and the I/O bus. Modules can be inserted or removed with the power since the I/O module does not have any direct wiring. It in turn saves time and removes system restarting inefficiency. It contains isolated inputs which have applications in motor control centers in control transformers.
The 1794-IA8I module has 8 isolated inputs with 120V AC nominal On-State voltage, 65V AC minimum On-State voltage, 43V AC maximum Off-State voltage, and 2.9mA maximum Off-State current. It has an input filter time of 8.4ms from Off to On and of 26.4ms from On to Off. It has a maximum power dissipation of 4.5W at 132V AC. Terminal base units compatible with it are the 1794-TBN, 1794-TB2, 1794-TB3, 1794-TB3S and the 1794-TBKD. It is installed using DIN rail mounting. It has various communication options such as ControlNet, DeviceNet, EtherNet/IP and Universal Remote I/O.
The 1794-IA8I module has 16 yellow LEDs as status indicators for each channel. It also has XT versions of standard modules for operating in extreme environments which reduces panel and maintenance costs. It has a 0 - 55 °C (32 - 131 °F) operating temperature and 5 - 95% noncondensing relative humidity.

Technical specifications:

Part Number:1794-IA8I
Product Type:Flex I/O AC Digital Input Module
Inputs:8 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.

Please refer to the manual for more information about the 1794-IA8I such as the wiring diagrams, data sheets, firmware information and migration or obsolescence details.

Revision Part # Also Known as Availability
1794-IA8I Ser A
1794-IA8I/A, Series A, Rev A Request Quote

Common misspellings: 1794IA8I
l794-IA8I
179A-IA8I
1794-IAbI
1794-IA8IX
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