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Allen Bradley Flex I/O 1794 1794-OM8

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1794-OM8

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The Allen-Bradley 1794-OM8 Flex I/O Digital Output Module has 8 Nonisolated Outputs, a 240V AC Output Voltage nom., and a 4.0A Output Current Rating. It also operates with a 1.5V AC @ 0.5A On-state Voltage Drop max. and a 2.5mA Off-state Leakage max..

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 1794-OM8

ManufacturerAllen Bradley
Product TypeFlex I/O Digital Output Module
Product LineFlex I/O 1794
Part Number1794-OM8
UPC612598179978
Weight1.88 lbs (0.85 kg)
Outputs8 Nonisolated
Output Voltage nom.240V AC
Output Current Rating4.0A
On-state Current max.500mA per Output
On-state Voltage Drop max.1.5V AC @ 0.5A
Off-state Leakage max.2.5mA
Isolation Voltage250V Continuous
Flexbus Current60mA @ 5V DC
Power Dissipation5W @ 0.5A max.
Thermal Dissipation17.1 BTU/hr. @ 0.5A max.
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The Allen-Bradley 1794-OM8 is a 1794 FLEX Digital AC Output 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 under power since the I/O module does not have any direct wiring. It in turn saves time and removes system restarting inefficiency. The 1794-OM8 module has 8 outputs. It has 220V AC nominal On-State output voltage 159 – 264V AC On-State output voltage range 500mA maximum and 5mA minimum at 55 °C current per output and 4A (8 outputs at 500 mA) maximum current per module. It has a maximum power dissipation of 5W at 0.5A. Terminal Base units compatible with it are the 1794-TBNF and the 1794-TBN. It is installed using a DIN rail by snapping it onto the DIN rail. It has various communication options such as ControlNet, DeviceNet, EtherNet/IP, and Universal Remote I/O. The 1794-OM8 module has 16 yellow LED status indicators for each channel indicating the corresponding input device and output signal. 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 a 5 - 95% noncondensing relative humidity.

Revision Part #Also known as
1794-OM8 Ser A1794-OM8/A, Series A, Rev A
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