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Square D Interlock Attachment, for Use with QO,Q1 Circuit Breakers

Free shipping on orders over $29.99

$23.49

$ 10 .99 $10.99

In Stock


This interlock attachment is designed for use with Square D circuit breakers.
Item: Interlock Attachment
For Use With: QO,Q1 Circuit Breakers
Includes: Steel interlock attachment


ScottMn
2025-07-28 11:40:58
I had to very slightly bend the end tabs to get it to lay perfectly flat. Had it on in 15 minutes.
Customer
2025-06-27 19:39:20
No really sized right. Buy the original instead. Same price. I messed up thinking it was the original
Spitfire
2025-05-04 09:44:05
I've used this exact model interlock before with no trouble but for some reason this one wouldn't work right. Used on a 100A, Square D sub-panel to interlock two double pole QO series breakers. The attachment fit onto the breaker perfectly *but* would not allow either breaker to turn on. Unfortunately, I needed it immediately so ended up grinding down both tabs on the interlock arm which made it work as intended.
tim
2025-01-18 16:30:45
Hard to work. Had to finally just remember to turn off main before activating the generator side.
Andrew Hume
2025-01-12 18:37:21
Worked for me. Kind of a pain but... again it works.
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