购买 main circuit breaker

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$326.17
SIEMENS S4260L3225 225-Amp Indoor Main Lug 42 Space, 60 Circuit 3-Phase Load Center, Copper Bus
Amazon.com
142
Free shipping
$326.17
SIEMENS S4260L3225 225-Amp Indoor Main Lug 42 Space, 60 Circuit 3-Phase Load Center, Copper Bus
Amazon.com
142
$245.69
$272.22
Siemens SN4060B1200 SN Series 200 Amp 40-Space 60-Circuit Main Breaker Plug-On Neutral Load Center Indoor
Amazon.com
29
Free shipping
$245.69
$272.22
Siemens SN4060B1200 SN Series 200 Amp 40-Space 60-Circuit Main Breaker Plug-On Neutral Load Center Indoor
Amazon.com
29
$118.99
Siemens MBK200A 200-Amp Main Circuit Breaker For Use In Ultimate Type Load Centers
Amazon.com
361
Free shipping
$118.99
Siemens MBK200A 200-Amp Main Circuit Breaker For Use In Ultimate Type Load Centers
Amazon.com
361
$48.00
$64.00
Square D By Schneider Electric HOMT1515215CP Homeline Tandem Circuit Breaker, 2X1 Pole, 1X2 Pole, 15A, 120/240VAC, 10Ka AIR, Plug In, UL, Black
Amazon.com
80
Free shipping
折扣 25%
$48.00
$64.00
Square D By Schneider Electric HOMT1515215CP Homeline Tandem Circuit Breaker, 2X1 Pole, 1X2 Pole, 15A, 120/240VAC, 10Ka AIR, Plug In, UL, Black
Amazon.com
80
$115.00
$134.69
Siemens MBK175 175Amp 120/240 Volt Double-Pole Main Breaker Converter
Amazon.com
23
Free shipping
折扣 14%
$115.00
$134.69
Siemens MBK175 175Amp 120/240 Volt Double-Pole Main Breaker Converter
Amazon.com
23
$36.45
$38.90
15 Amp 1-Pole Combination Type AFCI Plug-On Neutral Circuit Breaker
Amazon.com
113
Free shipping
$36.45
$38.90
15 Amp 1-Pole Combination Type AFCI Plug-On Neutral Circuit Breaker
Amazon.com
113
$34.99
General Electric 30 Amp Molded Case Circuit Breaker 3-Pole
King Surplus
$34.99
General Electric 30 Amp Molded Case Circuit Breaker 3-Pole
King Surplus
$108.88
Cutler Hammer BAB3030H 30A 3P Bolt On Ckt Breaker-Ch
Amazon.com
14
Free shipping
$108.88
Cutler Hammer BAB3030H 30A 3P Bolt On Ckt Breaker-Ch
Amazon.com
14
$16.57
$29.99
Bussmann Series CB185 150A Type III Circuit Breaker - 1 Piece
Amazon.com
65
Free shipping
折扣 44%
$16.57
$29.99
Bussmann Series CB185 150A Type III Circuit Breaker - 1 Piece
Amazon.com
65
$279.99
Blue Sea Systems AC Main Circuit Breaker Panel, Main + 6 Positions | By West Marine
WestMarine
79
Free shipping
$279.99
Blue Sea Systems AC Main Circuit Breaker Panel, Main + 6 Positions | By West Marine
WestMarine
79
$52.99
Siemens Q115DFN 15 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker, Black
Amazon.com
69
Free shipping
$52.99
Siemens Q115DFN 15 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker, Black
Amazon.com
69
$46.00
Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
218
Free shipping
$46.00
Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
218
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
10
Free shipping
折扣 13%
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
10
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
9
Free shipping
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
9
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
1
折扣 49%
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
1
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
128
Free shipping
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
128
$268.67
Siemens S3054L3200 200-Amp Indoor Main Lug 30 Space, 54 Circuit 3-Phase Load Center
Amazon.com
61
Free shipping
$268.67
Siemens S3054L3200 200-Amp Indoor Main Lug 30 Space, 54 Circuit 3-Phase Load Center
Amazon.com
61
$229.55
SIEMENS S2442L3200 200-Amp Indoor Main Lug 24 Space, 42 Circuit 3-Phase Load Center
Amazon.com
38
Free shipping
$229.55
SIEMENS S2442L3200 200-Amp Indoor Main Lug 24 Space, 42 Circuit 3-Phase Load Center
Amazon.com
38
$220.65
Square D QOM2200VH Main Circuit Breaker 200A 120/240V 1Ph 2P
Voomi Supply
401
$220.65
Square D QOM2200VH Main Circuit Breaker 200A 120/240V 1Ph 2P
Voomi Supply
401
$11.39
$20.34
TOMZN Residual Current Circuit Breaker Main Switch With Surge Protector RCBO MCB With
Aliexpress
折扣 44%
$11.39
$20.34
TOMZN Residual Current Circuit Breaker Main Switch With Surge Protector RCBO MCB With
Aliexpress
$159.73
Leviton 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 15 Amp, 120-Volt, 10Ka Interrupt Rating, LB115-DST
Amazon.com
22
Free shipping
$159.73
Leviton 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 15 Amp, 120-Volt, 10Ka Interrupt Rating, LB115-DST
Amazon.com
22
$844.25
THJK436F000 | Quality Switchgear
Quality Switchgear
$844.25
THJK436F000 | Quality Switchgear
Quality Switchgear
$65.00
CSR2200N 25K Main Circuit Breaker For Cutler-Hammer CH Load Centers
Breaker Outlet
$65.00
CSR2200N 25K Main Circuit Breaker For Cutler-Hammer CH Load Centers
Breaker Outlet
$377.85
QO 200 Amp 42-Space 42-Circuit Indoor Main Breaker Plug-On Neutral Load Center With Cover- Value Pack
Home Depot
62
Free shipping
$377.85
QO 200 Amp 42-Space 42-Circuit Indoor Main Breaker Plug-On Neutral Load Center With Cover- Value Pack
Home Depot
62
$10.99
General Electric GE 20-Amp 1-Pole Standard Trip Circuit Breaker
King Surplus
$10.99
General Electric GE 20-Amp 1-Pole Standard Trip Circuit Breaker
King Surplus
$110.00
Siemens QF250A Breaker Ground Fault Circuit Interrupter, 50 Amp, 2 Pole, 240 Volt, 10,000 AIC
Amazon.com
567
Free shipping
$110.00
Siemens QF250A Breaker Ground Fault Circuit Interrupter, 50 Amp, 2 Pole, 240 Volt, 10,000 AIC
Amazon.com
567
$2,977.07
Square D Jjl26150 : Molded Case Circuit Breaker 600V 150A
Gordon Electric Supply
$2,977.07
Square D Jjl26150 : Molded Case Circuit Breaker 600V 150A
Gordon Electric Supply
$6,698.39
Square D Jjl26175 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$6,698.39
Square D Jjl26175 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$3,246.87
3VA6460-5HL31-0AA0 - Siemens 600A 600V 3-Pole Molded Case Circuit Breaker 3VA6 Frame Class M
Essential Electric Supply
折扣 56%
$3,246.87
3VA6460-5HL31-0AA0 - Siemens 600A 600V 3-Pole Molded Case Circuit Breaker 3VA6 Frame Class M
Essential Electric Supply
$6.94
Q120 Siemens Molded Case Circuit Breaker
Standard Electric Supply Co.
2 千+
$6.94
Q120 Siemens Molded Case Circuit Breaker
Standard Electric Supply Co.
2 千+
$10,599.71
PGL36100U44A - Square D Powerpact P-Frame 1000A 600V 3P 35Ka@480V LSIG Electronic Trip Molded Case Circuit Breaker
Essential Electric Supply
折扣 55%
$10,599.71
PGL36100U44A - Square D Powerpact P-Frame 1000A 600V 3P 35Ka@480V LSIG Electronic Trip Molded Case Circuit Breaker
Essential Electric Supply
$46.00
Siemens QA120AFC 20 Amp Combination Arc Fault Breaker
Amazon.com
24
Free shipping
$46.00
Siemens QA120AFC 20 Amp Combination Arc Fault Breaker
Amazon.com
24
$3,540.88
MDL3800 - Cutler Hammer 800A 600V 3-Pole MDL Frame Molded Case Circuit Breaker
Essential Electric Supply
折扣 80%
$3,540.88
MDL3800 - Cutler Hammer 800A 600V 3-Pole MDL Frame Molded Case Circuit Breaker
Essential Electric Supply
$264.00
Square D 9421Ld1 : Circuit Breaker Op Mech For 400A Breaker
Gordon Electric Supply
$264.00
Square D 9421Ld1 : Circuit Breaker Op Mech For 400A Breaker
Gordon Electric Supply
Understanding Circuit Breakers: Types and Functions Explained!
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YouTubeEngr.Muhammad Zahid
Understanding Circuit Breakers: Types and Functions Explained!
"Welcome to our channel! In this video, we dive into the world of circuit breakers, essential devices that protect our electrical systems from damage. We will explain what a circuit breaker is, how it works, and explore the different types of circuit breakers available. Whether you're an electrical enthusiast or a beginner, this video will ...
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购买 main circuit breaker

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$46.00
Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
218
Free shipping
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Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
10
Free shipping
折扣 13%
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
9
Free shipping
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
1
折扣 49%
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
128
Free shipping
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
$268.67
Siemens S3054L3200 200-Amp Indoor Main Lug 30 Space, 54 Circuit 3-Phase Load Center
Amazon.com
61
Free shipping
$268.67
Siemens S3054L3200 200-Amp Indoor Main Lug 30 Space, 54 Circuit 3-Phase Load Center
Amazon.com
$229.55
SIEMENS S2442L3200 200-Amp Indoor Main Lug 24 Space, 42 Circuit 3-Phase Load Center
Amazon.com
38
Free shipping
$229.55
SIEMENS S2442L3200 200-Amp Indoor Main Lug 24 Space, 42 Circuit 3-Phase Load Center
Amazon.com
$220.65
Square D QOM2200VH Main Circuit Breaker 200A 120/240V 1Ph 2P
Voomi Supply
401
$220.65
Square D QOM2200VH Main Circuit Breaker 200A 120/240V 1Ph 2P
Voomi Supply
$11.39
$20.34
TOMZN Residual Current Circuit Breaker Main Switch With Surge Protector RCBO MCB With
Aliexpress
折扣 44%
$11.39
$20.34
TOMZN Residual Current Circuit Breaker Main Switch With Surge Protector RCBO MCB With
Aliexpress
$159.73
Leviton 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 15 Amp, 120-Volt, 10Ka Interrupt Rating, LB115-DST
Amazon.com
22
Free shipping
$159.73
Leviton 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 15 Amp, 120-Volt, 10Ka Interrupt Rating, LB115-DST
Amazon.com
$844.25
THJK436F000 | Quality Switchgear
Quality Switchgear
$844.25
THJK436F000 | Quality Switchgear
Quality Switchgear
$65.00
CSR2200N 25K Main Circuit Breaker For Cutler-Hammer CH Load Centers
Breaker Outlet
$65.00
CSR2200N 25K Main Circuit Breaker For Cutler-Hammer CH Load Centers
Breaker Outlet
$377.85
QO 200 Amp 42-Space 42-Circuit Indoor Main Breaker Plug-On Neutral Load Center With Cover- Value Pack
Home Depot
62
Free shipping
$377.85
QO 200 Amp 42-Space 42-Circuit Indoor Main Breaker Plug-On Neutral Load Center With Cover- Value Pack
Home Depot
$10.99
General Electric GE 20-Amp 1-Pole Standard Trip Circuit Breaker
King Surplus
$10.99
General Electric GE 20-Amp 1-Pole Standard Trip Circuit Breaker
King Surplus
$110.00
Siemens QF250A Breaker Ground Fault Circuit Interrupter, 50 Amp, 2 Pole, 240 Volt, 10,000 AIC
Amazon.com
567
Free shipping
$110.00
Siemens QF250A Breaker Ground Fault Circuit Interrupter, 50 Amp, 2 Pole, 240 Volt, 10,000 AIC
Amazon.com
$2,977.07
Square D Jjl26150 : Molded Case Circuit Breaker 600V 150A
Gordon Electric Supply
$2,977.07
Square D Jjl26150 : Molded Case Circuit Breaker 600V 150A
Gordon Electric Supply

购买 main circuit breaker

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$326.17
SIEMENS S4260L3225 225-Amp Indoor Main Lug 42 Space, 60 Circuit 3-Phase Load Center, Copper Bus
Amazon.com
142
Free shipping
$326.17
SIEMENS S4260L3225 225-Amp Indoor Main Lug 42 Space, 60 Circuit 3-Phase Load Center, Copper Bus
Amazon.com
142
$245.69
$272.22
Siemens SN4060B1200 SN Series 200 Amp 40-Space 60-Circuit Main Breaker Plug-On Neutral Load Center Indoor
Amazon.com
29
Free shipping
$245.69
$272.22
Siemens SN4060B1200 SN Series 200 Amp 40-Space 60-Circuit Main Breaker Plug-On Neutral Load Center Indoor
Amazon.com
29
$118.99
Siemens MBK200A 200-Amp Main Circuit Breaker For Use In Ultimate Type Load Centers
Amazon.com
361
Free shipping
$118.99
Siemens MBK200A 200-Amp Main Circuit Breaker For Use In Ultimate Type Load Centers
Amazon.com
361
$48.00
$64.00
Square D By Schneider Electric HOMT1515215CP Homeline Tandem Circuit Breaker, 2X1 Pole, 1X2 Pole, 15A, 120/240VAC, 10Ka AIR, Plug In, UL, Black
Amazon.com
80
Free shipping
折扣 25%
$48.00
$64.00
Square D By Schneider Electric HOMT1515215CP Homeline Tandem Circuit Breaker, 2X1 Pole, 1X2 Pole, 15A, 120/240VAC, 10Ka AIR, Plug In, UL, Black
Amazon.com
80
$115.00
$134.69
Siemens MBK175 175Amp 120/240 Volt Double-Pole Main Breaker Converter
Amazon.com
23
Free shipping
折扣 14%
$115.00
$134.69
Siemens MBK175 175Amp 120/240 Volt Double-Pole Main Breaker Converter
Amazon.com
23
$36.45
$38.90
15 Amp 1-Pole Combination Type AFCI Plug-On Neutral Circuit Breaker
Amazon.com
113
Free shipping
$36.45
$38.90
15 Amp 1-Pole Combination Type AFCI Plug-On Neutral Circuit Breaker
Amazon.com
113
$34.99
General Electric 30 Amp Molded Case Circuit Breaker 3-Pole
King Surplus
$34.99
General Electric 30 Amp Molded Case Circuit Breaker 3-Pole
King Surplus
$108.88
Cutler Hammer BAB3030H 30A 3P Bolt On Ckt Breaker-Ch
Amazon.com
14
Free shipping
$108.88
Cutler Hammer BAB3030H 30A 3P Bolt On Ckt Breaker-Ch
Amazon.com
14
$16.57
$29.99
Bussmann Series CB185 150A Type III Circuit Breaker - 1 Piece
Amazon.com
65
Free shipping
折扣 44%
$16.57
$29.99
Bussmann Series CB185 150A Type III Circuit Breaker - 1 Piece
Amazon.com
65
$279.99
Blue Sea Systems AC Main Circuit Breaker Panel, Main + 6 Positions | By West Marine
WestMarine
79
Free shipping
$279.99
Blue Sea Systems AC Main Circuit Breaker Panel, Main + 6 Positions | By West Marine
WestMarine
79
$52.99
Siemens Q115DFN 15 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker, Black
Amazon.com
69
Free shipping
$52.99
Siemens Q115DFN 15 Amp 1-Pole Dual Function (CAFCI/GFCI) Plug-On Neutral Circuit Breaker, Black
Amazon.com
69
$46.00
Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
218
Free shipping
$46.00
Eaton BRP120DF Br Dual Function Af/Gf 1P 20A
Amazon.com
218
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
10
Free shipping
折扣 13%
$147.19
$169.64
Leviton LB120-DST 2nd Gen Smart Circuit Breaker With Remote Control, Dual Function AFCI/GFCI, 1-Pole 20 Amp, 120-Volt, 10Ka Interrupt Rating
Amazon.com
10
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$1,305.00
Square D Jda261751 : Molded Case Circuit Breaker 600V 175A
Gordon Electric Supply
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
9
Free shipping
$352.42
200 Amp 20-Space 40-Circuit Surface EUSERC BR Type Main Meter Breaker
Home Depot
9
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
1
折扣 49%
$2,335.30
LAL36300 - Square D 300A 600V 3-Pole Molded Case Circuit Breaker LAL Frame Bolt-On Mount
Essential Electric Supply
1
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$115.00
QOM2150VH Main Circuit Breaker By Square D Schneider Electric
Breaker Outlet
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
128
Free shipping
$63.16
Siemens 25 Amp Double-Pole And (2) 15 Amp Single-Pole Type QT Triplex Circuit Breaker
Amazon.com
128