Siemens 3TH40 Auxiliary Contact Block, 3NO-1NC

If you're searching for this part, there's a good chance something in your MCC isn't working the way it should. We get it. Equipment goes down and you need it fixed, not next week but now.

Give us a call and we'll make sure you're ordering the right part the first time. We'll ask the right questions, confirm compatibility, and get it shipped out the same day whenever possible. No guessing, no returns, no wasted time.

And if the situation is bigger than one part, we've got options. We build complete replacement MCC buckets and offer on-site repair service with experienced techs who know this equipment inside and out. Whether you need a single component or a full solution, we'll take care of you.