Shop Breaker Box Knockout

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$11.79
Garvin 52181-Ow 4" Sq 3-1/2" Extra Deep Old Work Junction Box 1/2" & 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$11.79
Garvin 52181-Ow 4" Sq 3-1/2" Extra Deep Old Work Junction Box 1/2" & 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.99
Garvin 6350-1 6" Sq Junction Box 3-1/2" Deep 1" Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.99
Garvin 6350-1 6" Sq Junction Box 3-1/2" Deep 1" Ko's
New Feedonomics Feed - ARC 8/12/2025
$15.29
Garvin Gb-2123341 2-1/2" Deep 3-Gang Multi-Gang Box W/3/4" And 1" Conduit Ko's
New Feedonomics Feed - ARC 8/12/2025
$15.29
Garvin Gb-2123341 2-1/2" Deep 3-Gang Multi-Gang Box W/3/4" And 1" Conduit Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.49
Garvin G603-Ow 3-1/2" Deep Switch Box W/Old-Work Clips And (6) 1/2" Side Ko's And (2) 1/2" Bottom Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.49
Garvin G603-Ow 3-1/2" Deep Switch Box W/Old-Work Clips And (6) 1/2" Side Ko's And (2) 1/2" Bottom Ko's
New Feedonomics Feed - ARC 8/12/2025
$5.49
Garvin Ubl1-Red Red Universal Breaker Lock Out Device
New Feedonomics Feed - ARC 8/12/2025
$5.49
Garvin Ubl1-Red Red Universal Breaker Lock Out Device
New Feedonomics Feed - ARC 8/12/2025
$9.09
Garvin 72181-S 4-11/16" Welded Junction Box 3" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.09
Garvin 72181-S 4-11/16" Welded Junction Box 3" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$56.09
Garvin 52151-Svtss Stainless Steel 4" Sq Air Tight Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$56.09
Garvin 52151-Svtss Stainless Steel 4" Sq Air Tight Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$48.09
Knockout Electrical Enclosures | NEMA Box | SK-28
Polycase
$48.09
Knockout Electrical Enclosures | NEMA Box | SK-28
Polycase
$41.86
Knockout Electrical Enclosures | NEMA Box | SK-29
Polycase
$41.86
Knockout Electrical Enclosures | NEMA Box | SK-29
Polycase
$2.00
NEW 96701 Halex Box 1/2" Electrical Breaker Box Knock Out Seal 0 51411 96071 1. Halex. Silver. Conduit Fittings. 051411960711.
eBay
$2.00
NEW 96701 Halex Box 1/2" Electrical Breaker Box Knock Out Seal 0 51411 96071 1. Halex. Silver. Conduit Fittings. 051411960711.
eBay
$11.00
$13.31
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
117
Free shipping
17% off
$11.00
$13.31
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
Free shipping
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
$175.00
100 Amp Main Breaker Meter Socket,Brand New With A Couple Knockouts Punched Out. AMP. Electrical Boxes & Enclosures.
eBay
Free shipping
$175.00
100 Amp Main Breaker Meter Socket,Brand New With A Couple Knockouts Punched Out. AMP. Electrical Boxes & Enclosures.
eBay
$9.70
1X Breaker Box Junction Box Electrical Box Plastic Distribution Box Circuit. 2-3 Digits. Electrical Panel & Distribution Boards.
eBay
$9.70
1X Breaker Box Junction Box Electrical Box Plastic Distribution Box Circuit. 2-3 Digits. Electrical Panel & Distribution Boards.
eBay
$63.32
AC Circuit Breaker Box Fuse Breaker Outdoor Breaker Box Pull Out Switch For A...
eBay
$63.32
AC Circuit Breaker Box Fuse Breaker Outdoor Breaker Box Pull Out Switch For A...
eBay
$278.19
Milbank 8848-GSC3R-NK Screw Cover Wireway Type 3R UL Listed Steel No Knockouts ANSI 61 Gray Quad D Knockout For Lock
Voomi Supply
$278.19
Milbank 8848-GSC3R-NK Screw Cover Wireway Type 3R UL Listed Steel No Knockouts ANSI 61 Gray Quad D Knockout For Lock
Voomi Supply
$8.93
Steel City CY-1/2, Steel, 1-Gang, 9-Knockout Electrical Switch Box With Ear, 2Pc. Steel City. Silver. Other Electrical Equipment & Supplies.
eBay
$8.93
Steel City CY-1/2, Steel, 1-Gang, 9-Knockout Electrical Switch Box With Ear, 2Pc. Steel City. Silver. Other Electrical Equipment & Supplies.
eBay
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
Free shipping
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
$10.02
Hubbell-Raco 8500 2-1/2-Inch Deep, Gangable, 1/2-Inch End Knockouts With Plaster Ears 3-Inch By 2-Inch Switch Box
Walmart
Free shipping
$10.02
Hubbell-Raco 8500 2-1/2-Inch Deep, Gangable, 1/2-Inch End Knockouts With Plaster Ears 3-Inch By 2-Inch Switch Box
Walmart
$50.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit. Lelen. 10-13 Bit. Electrical Boxes & Enclosures.
eBay
Free shipping
$50.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit. Lelen. 10-13 Bit. Electrical Boxes & Enclosures.
eBay
$70.44
Manual Knockout Punch Kit, Heavy Duty Metal Sheet Knock Out Box Hole Cutter C. Black. Punches & Dies.
eBay
Free shipping
$70.44
Manual Knockout Punch Kit, Heavy Duty Metal Sheet Knock Out Box Hole Cutter C. Black. Punches & Dies.
eBay
$31.95
Panel Buddy Electric Panel Knockout Tool Kit (Pack Of 1)
Home Depot
1
Free shipping
$31.95
Panel Buddy Electric Panel Knockout Tool Kit (Pack Of 1)
Home Depot
$50.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit
US eBay
Free shipping
$50.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit
US eBay
$47.99
Manual Knockout Punch Kit, Heavy Duty Metal Sheet Knock Out Box Hole Cutter Cond
eBay
Free shipping
$47.99
Manual Knockout Punch Kit, Heavy Duty Metal Sheet Knock Out Box Hole Cutter Cond
eBay
$40.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit. Lelen. 7-9 Bit. Electrical Boxes & Enclosures.
eBay
Free shipping
$40.00
Household Electrical Box Circuit Breaker Distribution Box Concealed 7-9 Circuit. Lelen. 7-9 Bit. Electrical Boxes & Enclosures.
eBay
$11.76
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 3-4 Digits. Electrical Panel & Distribution Boards.
eBay.com
$11.76
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 3-4 Digits. Electrical Panel & Distribution Boards.
eBay.com
$14.70
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 5-6 Digits. Electrical Panel & Distribution Boards.
eBay.com
$14.70
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 5-6 Digits. Electrical Panel & Distribution Boards.
eBay.com
$34.20
1X Circuit Breaker Box Electrical Switch Box Household Plastic Distribution Box. HT-15 Loop. Electrical Panel & Distribution Boards.
eBay
$34.20
1X Circuit Breaker Box Electrical Switch Box Household Plastic Distribution Box. HT-15 Loop. Electrical Panel & Distribution Boards.
eBay
$19.99
Corporation BRFPP Circuit Breaker Knockout Filler Plate, 5-Pack
eBay
Free shipping
$19.99
Corporation BRFPP Circuit Breaker Knockout Filler Plate, 5-Pack
eBay
$17.64
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 7-9 Digits. Electrical Panel & Distribution Boards.
eBay.com
$17.64
1X Circuit Breaker Box Junction Box Electrical Box Plastic Distribution Box. 7-9 Digits. Electrical Panel & Distribution Boards.
eBay.com
$15.68
1X Circuit Breaker Box Electrical Switch Box Household Plastic Distribution Box. HT-5 Loop. Electrical Panel & Distribution Boards.
eBay
$15.68
1X Circuit Breaker Box Electrical Switch Box Household Plastic Distribution Box. HT-5 Loop. Electrical Panel & Distribution Boards.
eBay
$8.05
Hubbell Device Box 1 -Gang 1/2 in Knockout Metal 1104SBBAR
DkHardware.com
$8.05
Hubbell Device Box 1 -Gang 1/2 in Knockout Metal 1104SBBAR
DkHardware.com
$79.95
Square D Circuit Breaker Enclosure Nema 1 100 AMP MAX 240 VAC 3 Phase QO3100BN. SQUARE D. Gray. Electrical Boxes & Enclosures. QO3100BN.
eBay
$79.95
Square D Circuit Breaker Enclosure Nema 1 100 AMP MAX 240 VAC 3 Phase QO3100BN. SQUARE D. Gray. Electrical Boxes & Enclosures. QO3100BN.
eBay
$8.29
$9.00
Hubbell-Raco 8235 2-1/8-Inch Deep, 1/2-Inch And 3/4-Inch Side Knockouts, Wood/Metal Stud Bracket, Welded 4-Inch Square Box,Gray
Amazon.com
34
$8.29
$9.00
Hubbell-Raco 8235 2-1/8-Inch Deep, 1/2-Inch And 3/4-Inch Side Knockouts, Wood/Metal Stud Bracket, Welded 4-Inch Square Box,Gray
Amazon.com
$74.34
15 Way Circuit Breaker Box IP66 Distribution Protection Box 320mmx220mmx110mm. Circuit Breaker Accessories. 786527693252.
eBay
$74.34
15 Way Circuit Breaker Box IP66 Distribution Protection Box 320mmx220mmx110mm. Circuit Breaker Accessories. 786527693252.
eBay
$207.60
Siemens W0202MB1200CU Outdoor Circuit Breaker Enclosure Fnip. SIEMENS. Electrical Boxes & Enclosures. W0202MB1200CU.
eBay
Free shipping
$207.60
Siemens W0202MB1200CU Outdoor Circuit Breaker Enclosure Fnip. SIEMENS. Electrical Boxes & Enclosures. W0202MB1200CU.
eBay

Shop Breaker Box Knockout

Sponsored
About our ads
$11.79
Garvin 52181-Ow 4" Sq 3-1/2" Extra Deep Old Work Junction Box 1/2" & 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$11.79
Garvin 52181-Ow 4" Sq 3-1/2" Extra Deep Old Work Junction Box 1/2" & 3/4" Side Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.99
Garvin 6350-1 6" Sq Junction Box 3-1/2" Deep 1" Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.99
Garvin 6350-1 6" Sq Junction Box 3-1/2" Deep 1" Ko's
New Feedonomics Feed - ARC 8/12/2025
$15.29
Garvin Gb-2123341 2-1/2" Deep 3-Gang Multi-Gang Box W/3/4" And 1" Conduit Ko's
New Feedonomics Feed - ARC 8/12/2025
$15.29
Garvin Gb-2123341 2-1/2" Deep 3-Gang Multi-Gang Box W/3/4" And 1" Conduit Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.49
Garvin G603-Ow 3-1/2" Deep Switch Box W/Old-Work Clips And (6) 1/2" Side Ko's And (2) 1/2" Bottom Ko's
New Feedonomics Feed - ARC 8/12/2025
$6.49
Garvin G603-Ow 3-1/2" Deep Switch Box W/Old-Work Clips And (6) 1/2" Side Ko's And (2) 1/2" Bottom Ko's
New Feedonomics Feed - ARC 8/12/2025
$5.49
Garvin Ubl1-Red Red Universal Breaker Lock Out Device
New Feedonomics Feed - ARC 8/12/2025
$5.49
Garvin Ubl1-Red Red Universal Breaker Lock Out Device
New Feedonomics Feed - ARC 8/12/2025
$9.09
Garvin 72181-S 4-11/16" Welded Junction Box 3" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$9.09
Garvin 72181-S 4-11/16" Welded Junction Box 3" Deep 1/2" & 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$56.09
Garvin 52151-Svtss Stainless Steel 4" Sq Air Tight Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$56.09
Garvin 52151-Svtss Stainless Steel 4" Sq Air Tight Junction Box 1-1/2" Deep 1/2" And 3/4" Ko's
New Feedonomics Feed - ARC 8/12/2025
$48.09
Knockout Electrical Enclosures | NEMA Box | SK-28
Polycase
$48.09
Knockout Electrical Enclosures | NEMA Box | SK-28
Polycase
$41.86
Knockout Electrical Enclosures | NEMA Box | SK-29
Polycase
$41.86
Knockout Electrical Enclosures | NEMA Box | SK-29
Polycase
$2.00
NEW 96701 Halex Box 1/2" Electrical Breaker Box Knock Out Seal 0 51411 96071 1. Halex. Silver. Conduit Fittings. 051411960711.
eBay
$2.00
NEW 96701 Halex Box 1/2" Electrical Breaker Box Knock Out Seal 0 51411 96071 1. Halex. Silver. Conduit Fittings. 051411960711.
eBay
$11.00
$13.31
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
117
Free shipping
17% off
$11.00
$13.31
Raco Hubbell 680 2-Device, 2-1/8-Inch Deep, 1/2-Inch Side Knockouts 4-Inch Square Switch Box, Drawn, Silver,Gray
Amazon.com
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
Free shipping
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
$175.00
100 Amp Main Breaker Meter Socket,Brand New With A Couple Knockouts Punched Out. AMP. Electrical Boxes & Enclosures.
eBay
Free shipping
$175.00
100 Amp Main Breaker Meter Socket,Brand New With A Couple Knockouts Punched Out. AMP. Electrical Boxes & Enclosures.
eBay
$9.70
1X Breaker Box Junction Box Electrical Box Plastic Distribution Box Circuit. 2-3 Digits. Electrical Panel & Distribution Boards.
eBay
$9.70
1X Breaker Box Junction Box Electrical Box Plastic Distribution Box Circuit. 2-3 Digits. Electrical Panel & Distribution Boards.
eBay
$63.32
AC Circuit Breaker Box Fuse Breaker Outdoor Breaker Box Pull Out Switch For A...
eBay
$63.32
AC Circuit Breaker Box Fuse Breaker Outdoor Breaker Box Pull Out Switch For A...
eBay
$278.19
Milbank 8848-GSC3R-NK Screw Cover Wireway Type 3R UL Listed Steel No Knockouts ANSI 61 Gray Quad D Knockout For Lock
Voomi Supply
$278.19
Milbank 8848-GSC3R-NK Screw Cover Wireway Type 3R UL Listed Steel No Knockouts ANSI 61 Gray Quad D Knockout For Lock
Voomi Supply
$8.93
Steel City CY-1/2, Steel, 1-Gang, 9-Knockout Electrical Switch Box With Ear, 2Pc. Steel City. Silver. Other Electrical Equipment & Supplies.
eBay
$8.93
Steel City CY-1/2, Steel, 1-Gang, 9-Knockout Electrical Switch Box With Ear, 2Pc. Steel City. Silver. Other Electrical Equipment & Supplies.
eBay
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay
Free shipping
$46.73
Eaton Nzm2-Xksfa Circuit Breaker Terminal Cover Knockout, 3-Pole
eBay