Allen Bradley 1756-OA8 Digital AC output module

FAQ

Q1: What is the main purpose of the 1756‑OA8 module?
It provides eight AC digital outputs for controlling field devices such as relays, contactors, lamps, and solenoids.

Q2: How many outputs are available and how are they grouped?
There are 8 outputs arranged in two groups of four channels each.

Q3: What AC voltage range does this module support?
It supports a wide operating range of 74–265 VAC at 47–63 Hz.

Q4: What is the maximum current per output point?
Each point can handle up to approximately 2 A, derated at higher temperatures.

Q5: Are there any isolation features?
Yes, there is continuous isolation voltage of approximately 250 V between groups of four outputs.

Q6: What are the physical size and weight of the module?
The module measures about 300 mm × 38.1 mm × 111.25 mm and weighs around 0.43 kg.

Q7: What type of terminal connection does the module use?
It uses removable terminal blocks such as 1756‑TBNH or 1756‑TBSH.

Q8: What are the environmental operating limits?
It operates from 0 °C to 60 °C with storage from −40 °C to 85 °C and supports up to 95 % non‑condensing humidity.

1756-OA8 Allen Bradley

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