Description: The Allen-Bradley 1794-OA8 Flex I/O Digital Output Module has 8 Nonisolated Outputs, a 120V AC Output Voltage nom., and a 4.0A Output Current Rating. It also operates with a 1.0V @ 0.5A max. On-state Voltage Drop max. and a 2.25mA Off-state Leakage Current max..
|Warranty:||1 year DO Supply Warranty Included|
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|Repairs:||We offer repair service for the 1794-OA8.|
|Exchange:||Exchange credit for your defective unit available.|
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The Allen-Bradley 1794-OA8 is a FLEX I/O AC digital output module. It comes with 8 non-isolated outputs in a group. This module can diagnose problems with I/O field devices, wiring, and the power supply. It can also reduce the start-up time and the time spent finding and fixing failures. The 1794-OA8 can be installed directly on the following terminal base units: the 1794-TBNK, 1794-TBKD, 1794-TB3K, 1794-TBNFK, 1794-TB3SK, 1794-TBNF, 1794-TB3, 1794-TB2, 1794-TB3S, and the 1794-TBN. Note that it is necessary to use auxiliary terminal strips if the 1794-TBN is the selected base unit.
This 120 Volts AC module has an output voltage range of 85 to 132 Volts AC and an output current rating of 4 Amps with the 8 outputs at 500 mA. The module has a maximum on-state voltage drop of 1 Volt at 0.5 Amps and a maximum off-state leakage current of 2.25 mA. Its minimum on-state current is 5 mA per output, while the on-state maximum current is dependent on its temperature; at 55 degrees Celsius, it is 500 mA per output, it is 750 mA at 35 degrees Celsius, which is per output, and it is 500 mA on 4 outputs and 1 Amp on 4 non-adjacent outputs at 30 degrees Celsius. The 1794-OA8’s FlexBus current is 80 mA at 5 Volts DC. The isolation voltage of the 1794-OA8 is continuous at 120 Volts. It also has a surge current of 7 Amps for 40 milliseconds, which is repeatable every 8 seconds. It has an output signal delay of a maximum of 1/2 cycle for both the ON to OFF and the OFF to ON states. The maximum power dissipation for the 1794-OA8 is 4.1 W at 0.5 Amps and 6.3 W both at 0.75 Amps and 1 Amp. The maximum thermal dissipation is 14 BTU/hour at 0.5 Amps, 21.2 BTU/hour at 0.75 Amps, and 21.4 BTU/hour at 1 Amps.
|Part Number/Catalog No.:||1794-OA8|
|Product Type:||Flex I/O Digital Output Module|
|Output Voltage nom.:||120V AC|
|Output Current Rating:||4.0A|
|On-state Current min.:||5mA per Output|
|On-state Voltage Drop max.:||1.0V @ 0.5A max.|
|Off-state Leakage Current max.:||2.25mA|
|Isolation Voltage:||120V Continuous|
|Flexbus Current:||80mA @ 5V DC|
|Power Dissipation:||4.1W @ 0.5A max.|
|Thermal Dissipation:||14.0 BTU/hr. @ 0.5A max.|
Question: What is the number of outputs on the 1794-OA8?
Answer: There are 8, nonisolated outputs on the 1794-OA8.
Question: What are the dimensions of the 1794-OA8?
Answer: The 1794-OA8 is 94 x 94 x 69 mm (3.7 x 3.7 x 2.7 in.).
Question: What is the price of a 1794-OA8 Allen Bradley FLEX I/O AC Digital Output Module?
Answer: Submit quote request, send us an email, or call 800-730-0292 for our best price.
Question: Does DO Supply offer repair services for the 1794-OA8 Allen Bradley FLEX I/O AC Digital Output Module?
Answer: Yes, DO Supply offers repair services for a variety of Allen-Bradley products, such as the 1794-OA8 For more information or to request a repair quote, please click here.