How To Install Oac Output Contact Module For Alarm Signals Acb Hw1 Part 8
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Learn how to install the OAC output contact module for ACB HW1 alarm signals. This step-by-step guide covers discharging main springs, opening circuit breaker contacts, and proper wiring. Don't miss this essential tutorial!
- This video provides a tutorial on installing the OAC output contact module for various alarm signals.
- Steps include discharging main springs, opening circuit breaker contacts, and installing the module.
- Properly wiring the OAC according to the provided electrical diagram is essential.
This video tutorial, titled "ACB HW1 How-to videos. Part 8 – Alarm contact," guides you through the process of installing the OAC output contact module for various alarm signals. The module is used to signal overload pre-alarms, long-time delays, short-time delays, instantaneous alarms, ground fault protection alarms, and hardware trip system alarms. To successfully install the OAC output contact module, several steps need to be followed carefully
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Discharging the Main Springs and Opening Circuit Breaker Contacts Before you start the installation process, it's crucial to ensure that the main springs are discharged and the circuit breaker contacts are open. This step is vital for safety and proper functionality.
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Removing the ACB Front Cover To access the internal components of the ACB, you will need to remove the front cover. This is done by unscrewing the four screws securing the cover in place. Once the screws are removed, you can pull on the handle to ease the removal of the cover.
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Removing the Dummy Plastic Part Behind the Trip Unit Behind the trip unit, you will find a dummy plastic part that needs to be removed. This is achieved by sliding it out.
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Installing the OAC Module Take the OAC module and slide it behind the trip unit. Depending on whether you are working with a drawout version or a fixed version of the ACB, the installation process will differ slightly.
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For Drawout Version ACB Plug the OAC connectors into the connector's interface, ensuring they are placed correctly. Insert a terminal block type C into the base located on top of the chassis. Secure it using quarter-turn screws located on the TB label holder.
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For Fixed Version ACB Insert the terminal block type C into the base located on top of the breaker. Secure it with quarter-turn screws. Plug the OAC connector into the terminal block interface in the correct place.
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Reassembling the ACB After the OAC module is properly installed, you need to reassemble the ACB. Start by pulling on the handle to ease the mounting of the front cover. Once the cover is in place, screw in the four screws to secure it.
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Wiring the OAC Module The final step is to wire the OAC module directly to the terminal block following the electric diagram provided in the technical documentation. It's essential to follow the provided electrical diagram for accurate wiring.
In summary, this video provides a comprehensive guide on installing the OAC output contact module for ACB HW1 alarm signals. Following the steps outlined in the tutorial is crucial for ensuring the proper functioning of the module and, most importantly, for maintaining safety during the installation process. Proper wiring according to the electrical diagram is emphasized to guarantee the accurate operation of the OAC module. Don't miss this essential tutorial for ACB HW1 users.
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