Looking for component blown up

Alec_t

Joined Sep 17, 2013
15,101
Welcome to AAC!
From its appearance I'm guessing it's an opto-isolator.
But don't keep us guessing. It would help if we knew make and model of whatever unit it's part of.
Do you know what caused it to fry?
 

Thread Starter

Izak355

Joined Jun 16, 2025
3
Thank you

A power surge caused it to fry. The building lost power and when the controller restarted, it stopped working.

It’s a Siemens PXC 128 U.

Is it a generic component that can easily be found online or ordered or we need additional details to find which one to order?
 

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