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Guide to Steel City Knockouts, Pryouts, Ears, Brackets and Clamps <br />Knockouts EPA <br />Steel City conduit KOs have standard trade size dimensions. KOs are uniform and true for a 1% <br />attachment of cable or conduit connectors. Pryouts for cable entrance are slotted — a twist with G' 7# <br />a screwdriver removes them. KOs and Pryouts are precision stamped to permit easy removal, but <br />remain sufficiently strong and sturdy when not removed. I/? Conduit Ko %" Conduit Ko 1" Conduit Ko <br />Outlet Box Ears <br />Mounting ears support the box Independent of the electrical system ° <br />attachments. Switch boxes have a fixed ear for old work installations. <br />Ears for plaster are set %n" forward of the box face in position for old <br />work (modernization) except where specifically noted.Tapped a <br />Holes° <br />All Steel City boxes have a 10-32 tapped hole in the bottom of the <br />box for attaching separate ground wire. <br />Brackets <br />i <br />"S„ or "B" Type "T" Type <br />Mounts to face of stud, Used Positions handy box against <br />on switch, handy or square the face and side of stud, <br />boxes, 2" long - 2%" wide 5X" long - A" wide <br />I • <br />o <br />"OV" Type <br />Mounts box offset from stud 1 X". <br />61-X," long - 1" wide - 1%" offset <br />"MS" Type (For Metal Studs) <br />Mounts to any depth of metal <br />stud, open or closed side. 2%" <br />long -1 %: ' wide - %" offset <br />Far side support to 4" only <br />Eccentric Knockouts <br />o <br />"SV" Type <br />Mounts box to side of stud <br />with positioning spikes.7%" <br />long -1 " wide - W offset <br />117" - <br />Combination %" <br />& %" Knockout <br />Cable Pryouts akaays in Pairs. <br />"L" Type <br />Used to mount octagon boxes. <br />2Y." long - 3X" wide - X" offset <br />ar <br />UO 5 <br />"V,« Type <br />Mounts to flat side of stud. <br />TX" long - 1 " wide - X" offset <br />�. <br />T <br />"CV" Type <br />• ` <br />J <br />(Outlet Boxes) <br />C-1 <br />C-5 <br />Mounts to flat side of <br />o <br />For Armored <br />metal studs or wood <br />cable <br />studs. 7%" long - <br />1 " wide - X" offset <br />i <br />L=, <br />Armored Cable (BX) —Aluminum Sizes 14-2 through 10-3 Flex Metal Conduit — Steel A` Trade Size <br />"L" Type <br />Used to mount octagon boxes. <br />2Y." long - 3X" wide - X" offset <br />ar <br />UO 5 <br />"V,« Type <br />Mounts to flat side of stud. <br />TX" long - 1 " wide - X" offset <br />�. <br />T <br />For Non -Metallic Sheathed Cable and Non -Metallic Tubing (Loom) <br />UNDERWRITERS LABORATORIES INC. and CANADIAN STANDARDS ASSOCIATION file numbers for individual items <br />C-1 <br />C-5 <br />available upon request. "Products listed in this catalog are subject to alteration or discontinuation without prior notice." <br />o <br />For Armored <br />Listing Information for Armored Cable Clamp — Type C-3 <br />cable <br />Armored Cable (BX) — Steel Sizes 14-2 through 10-3 MCAP-- Aluminum" <br />C -g <br />L=, <br />Armored Cable (BX) —Aluminum Sizes 14-2 through 10-3 Flex Metal Conduit — Steel A` Trade Size <br />(Loom only) <br />J <br />MC Interlocked (MCI) — Steel .449-.570 Diameter Flex Metal Conduit —Aluminum %" Trade Size <br />MC Interlocked (MCI) —Aluminum .476-.606 Diameter C-3 Clamp Acceptable for Grounding <br />* •e <br />C-3 <br />MC Corrugated (MCC) —Aluminum .375-.515 Diameter <br />MCAP`" is a trademark of Southwire Company <br />C-10 <br />