Stoneway Electric
Contact Us Ask a Pro
View Cart 0
  1. Home
  2. Power Distribution & Protection
  3. Circuit Protection
  4. Circuit Breakers
  5. Main Breakers

Show Filters

REFINE YOUR SEARCH

In Stock
Categories
Manufacturers
Material
Country of origin
Item
Type
Frequency Rating
Interrupt Rating
Mounting
Number of Poles
Trip Type
Voltage Rating
Amperage Rating
Temperature Rating
Phase
Load Rating
Auxiliary Contacts
Wire Size
Actuator
Environmental Conditions
Connection
Application
Frame
Standards

Main Breakers

Sign in or register to view your pricing and inventory.
Square D - Schneider Electric QO235 Schneider Electric / Square D QO235 QO™ Miniature Circuit Breaker; 35 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Schneider Electric / Square D QO235 QO™ Miniature Circuit Breaker; 35 Amp, 120/...
 Schneider Electric / Square D QO235 QO™ Miniature Circuit Breaker; 35 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Schneider Electric / Square D QO235 QO™ Miniature Circuit Breaker; 35 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: Square D - Schneider Electric
Mfr. #: QO235
Item #: 177946
UPC: 785901012429
Please Wait
View Product Details
Square D - Schneider Electric QO245 Schneider Electric / Square D QO245 QO™ Miniature Circuit Breaker; 45 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Schneider Electric / Square D QO245 QO™ Miniature Circuit Breaker; 45 Amp, 120/...
 Schneider Electric / Square D QO245 QO™ Miniature Circuit Breaker; 45 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Schneider Electric / Square D QO245 QO™ Miniature Circuit Breaker; 45 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: Square D - Schneider Electric
Mfr. #: QO245
Item #: 84412
UPC: 785901012849
Please Wait
View Product Details
North American Circuit Breaker CH250.6429 Eaton / Cutler Hammer CH250 Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Eaton / Cutler Hammer CH250 Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Plug-On...
 Eaton / Cutler Hammer CH250 Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Eaton / Cutler Hammer CH250 Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: CH250.6429
Item #: 6429
UPC: 782113101859
Please Wait
View Product Details
North American Circuit Breaker CH240 Eaton / Cutler Hammer CH240 Circuit Breaker; 40 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Eaton / Cutler Hammer CH240 Circuit Breaker; 40 Amp, 120/240 Volt AC, 2-Pole, Plug-On...
 Eaton / Cutler Hammer CH240 Circuit Breaker; 40 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Eaton / Cutler Hammer CH240 Circuit Breaker; 40 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: CH240
Item #: 240334
UPC: 782113101835
Please Wait
View Product Details
North American Circuit Breaker B120 Siemens B120 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 1-Pole, Bolt-On Mount
Siemens B120 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 1-Pole, Bolt-On Mo...
 Siemens B120 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 1-Pole, Bolt-On Mount  
Siemens B120 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 1-Pole, Bolt-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: B120
Item #: 177120
UPC: 783643263420
Please Wait
View Product Details
North American Circuit Breaker Q120DF Q120DF S-A 1P 20A CB
Q120DF S-A 1P 20A CB
Manufacturer: North American Circuit Breaker
Mfr. #: Q120DF
Item #: 354313
UPC: 887621817329
Please Wait
View Product Details
North American Circuit Breaker B230 Siemens B230 ITE 2P 30A Circuit Breaker
Siemens B230 ITE 2P 30A Circuit Breaker
Manufacturer: North American Circuit Breaker
Mfr. #: B230
Item #: 243175
UPC: 783643263550
Please Wait
View Product Details
North American Circuit Breaker CH260 Eaton / Cutler Hammer CH260 Circuit Breaker; 60 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Eaton / Cutler Hammer CH260 Circuit Breaker; 60 Amp, 120/240 Volt AC, 2-Pole, Plug-On...
 Eaton / Cutler Hammer CH260 Circuit Breaker; 60 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Eaton / Cutler Hammer CH260 Circuit Breaker; 60 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: CH260
Item #: 75392
UPC: 782113101873
Please Wait
View Product Details
North American Circuit Breaker BRLAFGF120 Cutler Hammer BRLAFGF120 Ground Fault Circuit Breaker, 120/240 VAC, 20 A, 1-Pole
Cutler Hammer BRLAFGF120 Ground Fault Circuit Breaker, 120/240 VAC, 20 A, 1-Pole
Manufacturer: North American Circuit Breaker
Mfr. #: BRLAFGF120
Item #: 350864
UPC: 786670007906
Please Wait
View Product Details
North American Circuit Breaker Q115DF Q115DF ITE 15A 1P 120V 10K PLUG-IN
Q115DF ITE 15A 1P 120V 10K PLUG-IN
Manufacturer: North American Circuit Breaker
Mfr. #: Q115DF
Item #: 357064
UPC: 887621817305
Please Wait
View Product Details
North American Circuit Breaker Q120AF Siemens Q120AF Arc Fault Circuit Breaker; 20 Amp, 120 Volt AC, 1-Pole, Plug-In Mount
Siemens Q120AF Arc Fault Circuit Breaker; 20 Amp, 120 Volt AC, 1-Pole, Plug-In Mount
Manufacturer: North American Circuit Breaker
Mfr. #: Q120AF
Item #: 276197
UPC: 783643174269
Please Wait
View Product Details
North American Circuit Breaker B220 Siemens B220 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount
Siemens B220 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mo...
 Siemens B220 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount  
Siemens B220 Molded Case Circuit Breaker; 20 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: B220
Item #: 75630
UPC: 783643263536
Please Wait
View Product Details
North American Circuit Breaker CH2100 Eaton / Cutler Hammer CH2100 Circuit Breaker; 100 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Eaton / Cutler Hammer CH2100 Circuit Breaker; 100 Amp, 120/240 Volt AC, 2-Pole, Plug-...
 Eaton / Cutler Hammer CH2100 Circuit Breaker; 100 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Eaton / Cutler Hammer CH2100 Circuit Breaker; 100 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: CH2100
Item #: 240332
UPC: 782113102375
Please Wait
View Product Details
North American Circuit Breaker GFTCB120 Cutler Hammer GFTCB120 Type BR Ground Fault Circuit Breaker, 120 V, 20 A, 10 kA, 1-Pole
Cutler Hammer GFTCB120 Type BR Ground Fault Circuit Breaker, 120 V, 20 A, 10 kA, 1-Po...
 Cutler Hammer GFTCB120 Type BR Ground Fault Circuit Breaker, 120 V, 20 A, 10 kA, 1-Pole  
Cutler Hammer GFTCB120 Type BR Ground Fault Circuit Breaker, 120 V, 20 A, 10 kA, 1-Pole
Manufacturer: North American Circuit Breaker
Mfr. #: GFTCB120
Item #: 406672
UPC: 786680129773
Please Wait
View Product Details
North American Circuit Breaker CHFAFGF120 Eaton / Cutler Hammer CHFAFGF120 20 Amp, Combination Arc Fault / Ground Fault Circuit Interrupter; 1-Pole, 120/240V, 10 kAIC, Standard Pigtail
Eaton / Cutler Hammer CHFAFGF120 20 Amp, Combination Arc Fault / Ground Fault Circuit...
 Eaton / Cutler Hammer CHFAFGF120 20 Amp, Combination Arc Fault / Ground Fault Circuit Interrupter; 1-Pole, 120/240V, 10 kAIC, Standard Pigtail  
Eaton / Cutler Hammer CHFAFGF120 20 Amp, Combination Arc Fault / Ground Fault Circuit Interrupter; 1-Pole, 120/240V, 10 kAIC, Standard Pigtail
Manufacturer: North American Circuit Breaker
Mfr. #: CHFAFGF120
Item #: 334755
UPC: 786670007821
Please Wait
View Product Details
North American Circuit Breaker B250 Siemens B250 Molded Case Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount
Siemens B250 Molded Case Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mo...
 Siemens B250 Molded Case Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount  
Siemens B250 Molded Case Circuit Breaker; 50 Amp, 120/240 Volt AC, 2-Pole, Bolt-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: B250
Item #: 161803
UPC: 783643263598
Please Wait
View Product Details
North American Circuit Breaker Q320 Siemens Q320 Circuit Breaker; 20 Amp, 240 Volt AC, 3-Pole, Plug-In Mount
Siemens Q320 Circuit Breaker; 20 Amp, 240 Volt AC, 3-Pole, Plug-In Mount
Manufacturer: North American Circuit Breaker
Mfr. #: Q320
Item #: 239639
UPC: 783643148406
Please Wait
View Product Details
North American Circuit Breaker CH215 Eaton / Cutler Hammer CH215 Circuit Breaker; 15 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Eaton / Cutler Hammer CH215 Circuit Breaker; 15 Amp, 120/240 Volt AC, 2-Pole, Plug-On...
 Eaton / Cutler Hammer CH215 Circuit Breaker; 15 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount  
Eaton / Cutler Hammer CH215 Circuit Breaker; 15 Amp, 120/240 Volt AC, 2-Pole, Plug-On Mount
Manufacturer: North American Circuit Breaker
Mfr. #: CH215
Item #: 240333
UPC: 782113101729
Please Wait
View Product Details
North American Circuit Breaker Q350 Siemens Q350 Circuit Breaker; 50 Amp, 240 Volt AC, 3-Pole, Plug-In Mount
Siemens Q350 Circuit Breaker; 50 Amp, 240 Volt AC, 3-Pole, Plug-In Mount
Manufacturer: North American Circuit Breaker
Mfr. #: Q350
Item #: 239640
UPC: 783643148437
Please Wait
View Product Details
North American Circuit Breaker Q225 Siemens Q225 Thermal Magnetic Miniature Circuit Breaker, 120/240 VAC, 25 A, 2-Pole, 10 kA
Siemens Q225 Thermal Magnetic Miniature Circuit Breaker, 120/240 VAC, 25 A, 2-Pole, 1...
 Siemens Q225 Thermal Magnetic Miniature Circuit Breaker, 120/240 VAC, 25 A, 2-Pole, 10 kA  
Siemens Q225 Thermal Magnetic Miniature Circuit Breaker, 120/240 VAC, 25 A, 2-Pole, 10 kA
Manufacturer: North American Circuit Breaker
Mfr. #: Q225
Item #: 353160
UPC: 783643148376
Please Wait
View Product Details

Recently Viewed