Allen Bradley 1756-OA8E Digital AC output module with electronic fusing

FAQ

Q1: What type of outputs does the 1756‑OA8E provide?
It provides eight electronically fused AC output channels in two groups of four.

Q2: What voltage range is supported by the outputs?
The outputs operate within approximately 74–132 VAC at industrial AC frequencies.

Q3: What is the maximum current per point?
Each output can carry up to 2 A per channel (rated at 60 °C).

Q4: Is isolation provided between output groups?
Yes, there is approximately 125 V continuous isolation between output groups and backplane.

Q5: How fast do outputs switch in response to commands?
Typical output delay is around 9.3 ms at 60 Hz or 11 ms at 50 Hz.

Q6: What are the physical size and footprint of this module?
The module matches standard ControlLogix I/O dimensions (about 300 mm × 38.1 mm × 111.25 mm).

Q7: What are the operating and storage environments?
It operates from 0 °C to 60 °C and can be stored from −40 °C to 85 °C.

Q8: How is this module powered and connected?
It draws backplane power (~200 mA @ 5.1 V and ~250 mA @ 24 V) and uses removable terminal blocks for field wiring.

1756-OA8E Allen Bradley

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