How do you remove knockouts from plastic electrical boxes?

How to Remove Electrical Knockouts on a Plastic Enclosure

  1. Place a flat-head screwdriver into the slot of the electrical box knockout that is to be removed. …
  2. Hit or tap the end of the screwdriver to remove the knockout and dislodge the rest of the knockout by hand if needed.

Do you break tabs off plastic electrical boxes?

Fiber boxes often have knockout ports with no clamps anyway. On non-metallic single gang boxes 2 1/2 x 4, the cable does not need to be clamped if it is secured within 8 inches of the outside of the box (NEC 314.17(C) Exception). Therefor, on those, if the tab breaks off, no issue.

How do you remove knockouts from a metal electrical box?

Quote from the video:
Quote from Youtube video: It and just twist. It. And then don't do it like i did save these and try to use them for money because that does not work alright guys that's it that's my tip for today. Guys.

How do you remove electrical knockouts?

Quote from the video:
Quote from Youtube video: So the first one find the spot well I go the opposite. I knock it out then you'll take your pliers on the underside. And you'll twist it out.

How do you remove blue plastic electrical box?

Quote from the video:
Quote from Youtube video: And go through the top of the box and the bottom of the box. And then the nail stick out on this side a little bit.

What is a knockout panel?

Knockouts are partially stamped, quarter-size openings in the electrical boxes that service such things as outlets and switches. Once removed, a knockout allows electrical wires to be run in and out of the box.

How do you fix a broken plastic electrical box?

Quote from the video:
Quote from Youtube video: We can see that the screws aren't securing the outlet to the box. So what we're gonna do is install pull this away from the box and install a g clip over this point and a G clip over this point.

How do you break a tab in an electrical box?

Grip the brass tab between the two screws on the power side of the outlet, using needle-nose pliers. Wiggle the tab back and forth until it breaks off.

Do plastic electrical boxes need clamps?

Single plastic boxes do not require internal cable clamps, but the cable must be stapled within 8 in. of the box. Larger plastic boxes are required to have built-in cable clamps and the cable must be stapled within 12 in. of the box.

What size are knockouts on electrical boxes?

Stimpson offers Electrical Knockout Plugs in six basic sizes: 1/2”, 3/4”, 1”, 1-1/4”, 1-1/2”, and 2”. Variations for special situations are also available.

What is a breaker knockout?

Breaker knockout ( filler plate ) missing

Breakers or rectangle knockouts that have been removed from a panel leaves a gap where a person or child could stick something in. Should it be metal, shock or injury might occur; therefore it is wise to seal these with breaker blanks that just snap into the openings.

What size are junction box knockouts?

Junction boxes have knockouts on top, bottom and sides. Top/bottom knockouts are 2 and 1-1/2 in – sides are 2, 1-1/2, 3/4 and 1/2 in.

What size is a standard knockout?

How do I know what size to order?

Standard Conduit or Pipe Size (I.D.) Actual O.D of Pipe Actual Hole Size
3/8″ 0.675″ (17.15mm) 0.718″ (18.24mm)
1/2″ 0.840″ (21.33mm) 0.875″ (22.22mm)
3/4″ 1.050″ (26.67mm) 1.125″ (28.57mm)
1″ 1.315″ (33.40mm) 1.375″ (34.92mm)

What is an electrical knockout?

Knockouts are the places where an electrical box has been punched through to allow for wiring, so connections for outlets, light fixtures or additional wiring can be made within the box, which is rated to resist fire if anything overheats.

What size is a half inch knockout?

0.875 inches

The nominal knockout diameter for 1/2 inch conduit is 0.875 inches.

What size knockout plug do I need?

First, determine the size of the missing knockout hole and subtract 3/8″ to figure out what size knockout plug you’ll need. For example, if you have a 7/8″ hole, you’ll need a 1/2″ knockout plug. Next, go buy some knockout plugs.

What size hole is a 3/4 knockout?

1.109 inches

The nominal knockout diameter for 3/4 inch conduit is 1.109 inches.

What size is a 3/8 knockout?

The nominal knockout diameter for 3/8 inch conduit is 5/8 inches.

What is a knockout punch set used for?

A knockout punch, also known as a chassis punch, panel punch, Greenlee punch, or a Q-max, is a hand tool used to punch a hole through sheet metal. It is a very simple tool that consists of a punch, die, and screw. There are three different drive systems: manual, ratchet, and hydraulic.

What are the two basic specifications to consider when selecting a knockout punch tool?

There are two basic specifications to consider: what materials can be punched through and what size holes can be made. The size and shape of the holes will depend on the punch and die sets included in the knockout kit.