Allen Bradley 1746-OA8 SLC 500 8‑Channel AC Digital Output Module

FAQ

Q1: What is the 1746‑OA8 module used for?
It is an 8‑point AC output module for switching AC loads in an SLC 500 PLC system.

Q2: What voltage range can the outputs switch?
Outputs support AC voltages from approximately 85 V to 265 V.

Q3: How much current can each output provide?
Each output can continuously deliver about 1 A at 30 °C and 0.5 A at 60 °C.

Q4: What is the backplane current draw?
The module draws about 0.185 A from the 5 V DC backplane rail.

Q5: What are the signal response times?
Typical ON delay is ~1 ms and OFF delay is ~11 ms for resistive loads.

Q6: What are the physical dimensions and weight?
Approximate size is 57 mm × 171 mm × 250 mm and weight is ~0.40 kg.

Q7: What environmental conditions can it operate in?
It operates from 0 °C to 60 °C with 5 % to 95 % non‑condensing humidity.

Q8: Is the 1746‑OA8 still available?
No, it was discontinued on December 31, 2022 and is now part of the legacy SLC 500 product line.

1746-OA8 Allen Bradley

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