How to Remove Knock-Outs from Electric Box QO & Homeline Load Centers | Knockout Hole Punch

In this tutorial, we'll show you how to remove knockouts from QO™ and Homeline Load Centers, allowing for smooth installation of the main wiring and branch load wiring.

➡️ Please note that in this video, we correct the terminology from "Spot Welds" to "Tie" regarding the knockout connections.

➡️ This video serves as a helpful supplement to the equipment's included instructions. Be sure to thoroughly read and understand those instructions before working on any electrical equipment.

🔔 Timestamps:
0:01 - Introduction and Safety Precautions
0:25 - Removing Knock-Outs
1:58 - Adapting Knock-Out Size

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[JamesOKeefe-US]

Life saver. Thank you from 2024. I was completely lost :). Appreciate this 6 year old video!!

[adregely]

You’re doing the lords work. Thank you!

[Maggie-Gardener-Maker]

Thank you very much. I always have so much trouble with the knockouts, this helped.

[jsjshdbejkwbsjdken]

Thank you I just started my electrician's course and was feeling totally useless! Done it now... Thank you so much!!!

[terrywayneHamilton]

Hi, Life is simple with a good demonstration, thank you.

[OuterEdgeOutpost]

I don’t understand what’s supposed to prevent the other rings from knocking out inside of the one you want. I just hit the center ring opposite the tie like you said and the outer ring separated instead.

[schneiderelectric]

Please note: The video mentions spot welds as the connecting means of the knockout. This is incorrect. The correct term is "Tie".

[boblake]

How I love Youtube! One can find anything here!

[george]

Excellent. Right to the point. And thank you for not having:
* splash screens
* music; and
* spending half the video begging us to hit "Like" and "Subscribe"

Just one problem. The knockout that I need in my Load Center is secured by more than just a spot weld. I am going to need a knockout punch tool because the knockout impression is welded all around.

[volbster]

Yeah on the second knockout I saw you had the same problem I did. The next knock out starts coming out if your not careful.

[timothybuchman]

When you remove the second ring, say, to attach a 3/4" connector, you may have two tiny tabs left on either side of the hole. (What the video calls the spot-welds.) These can be very difficult to remove if the panel-box is already attached to the wall, or already energized. I was lucky enough to have a 3/4" nominal Greenlee punch on hand, to clean out the hole, but many viewers of this video may not have such a $100 tool.

[ChiNguyen-wfqt]

Thank for the vedio. I been doing it wrong

[shivangimittal]

Thank you for the simple and clear video. Made my life so easy after seeing this

[teachoc]

That helped me to not quit on a 96degree day.

[acegolfman]

Ha, good to know. Not obvious. I just knocked out a bigger hole than needed. Should have came here first. Thumbs up

[sed]

I was clueless, just what I needed, thanks!

[hippo-potamus]

When using EMT do you recommend removing some of the paint along the circumference of the knockout to ensure proper bonding of the tube to the panel when tightening the coupling locknut?

[aaw]

But you were partially separating the next ring each time. Will need some knockout washers when those come off

[rhuddle]

the largest knockout on my QO load center appears to be 1.5 inches. However, the last bit around is not able to be removed, so my 1.5 inch nipple won't go through. What's up?

[DaveBowman]

What do you do when the knock-out you need to use is much larger than the component you want to place there?... in my case, a whole house surge protector.