1746-OA8 Advantages
The Allen‑Bradley 1746‑OA8 AC Output Module stands out from comparable digital output modules in several key areas.
Solid‑state triac zero‑crossing AC output design. The Allen‑Bradley 1746‑OA8 AC Output Module uses triac zero‑cross turn‑on technology to reduce inrush current and electrical noise when switching AC loads, extending service life for contactor and solenoid field devices.
Eight‑point AC output divided into two independent groups. The Allen‑Bradley 1746‑OA8 AC Output Module splits 8 outputs into two banks with 4 points per common terminal, allowing users to apply different AC supply voltages for each group flexibly.
Built‑in high‑voltage isolation protection. The Allen‑Bradley 1746‑OA8 AC Output Module provides 1500V isolation between the PLC backplane and field AC‑load circuits, isolating surge voltage and load‑side fault interference to protect the SLC‑500 CPU and other backplane modules.
Front individual channel status LEDs. The Allen‑Bradley 1746‑OA8 AC Output Module is equipped with dedicated LED indicators for each output channel, enabling technicians to quickly verify output status during commissioning, troubleshooting and routine maintenance.
Native Allen‑Bradley SLC‑500 system integration. As a factory‑original SLC‑500 series component, the Allen‑Bradley 1746‑OA8 AC Output Module can be directly inserted into any standard SLC‑500 chassis slot without conversion adapters or mechanical modification.
No mechanical‑wear solid‑state construction. The Allen‑Bradley 1746‑OA8 AC Output Module has no moving mechanical relay contacts, supporting high‑frequency repeated switching operations and lowering long‑term maintenance workload.
1746-OA8 Applications
Discrete Manufacturing & Assembly Automation Lines. Main solid‑state AC output module within Allen‑Bradley SLC‑500 PLC systems, driving AC solenoid valves, AC contactors and AC indicator lights on assembly machinery.
Material Handling & Conveyor Systems. The Allen‑Bradley 1746‑OA8 AC Output Module triggers AC‑operated conveyor relays, diversion‑gate actuators and AC audible alarm devices according to PLC interlock logic.
Water Treatment & Wastewater Control Plants. The Allen‑Bradley 1746‑OA8 AC Output Module outputs control signals for AC pump contactors, AC valve actuators and fault warning lamps inside water process control cabinets.
Petrochemical & Chemical Processing Facilities. The Allen‑Bradley 1746‑OA8 AC Output Module serves as solid‑state AC discrete output hardware for non‑hazardous zone automation cabinets built around Allen‑Bradley SLC‑500 automation hardware.
General Industrial PLC Control Systems. The Allen‑Bradley 1746‑OA8 AC Output Module serves as original spare solid‑state AC output module for existing Allen‑Bradley SLC‑500 PLC‑based automation systems.
1746-OA8 Certifications & Compliance
The Allen‑Bradley 1746‑OA8 AC Output Module holds the following international safety and compliance approvals:
• UL listed — North‑American industrial control equipment safety approval.
• CE certification — European industrial control equipment safety and EMC compliance.
• C‑Tick marked — EMC compliance for Australian and New Zealand markets.
• Class I Division 2 certified — Suitable for installation in specified hazardous classified locations.
All modules supplied are 100% new original Allen‑Bradley parts. Every Allen‑Bradley 1746‑OA8 AC Output Module unit is functionally tested before dispatch, packed in professional anti‑static packaging, and covered by a one‑year warranty from the date of delivery.
