Circuit breakers 40a Amps
Circuit breakers for sale. Thermal or magnetic trip residential breakers. Standard, GFCI, or Arc-fault, find it at Blackhawk Supply.
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![Square D QOU240 MINIATURE CIRCUIT BREAKERS QOU, 40A, 2P, 120/240V, 10kA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-qou240_ff6d47b4-958f-4ee5-82ca-b9a1244628fc_medium.png?v=1715271154)
QOU240 | MINIATURE CIRCUIT BREAKERS QOU, 40A, 2P, 120 / 240V, 10kA | Square D by Schneider Electric
Brand: Square D
SKU: QOU240
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![Square D QOB240 QO mini breaker, 40 A, 2 pole, 120/240 V, 10 kA, bolt on | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-qob240_d6b2ed01-ae12-4ef6-a6d4-b89edddc91de_medium.png?v=1715271884)
QOB240 | QO mini breaker, 40 A, 2 pole, 120 / 240 V, 10 kA, bolt on | Square D by Schneider Electric
Brand: Square D
SKU: QOB240
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![Square D QOU340 MINIATURE CIRCUIT BREAKER 240V 40A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-qou340_medium.png?v=1719241864)
QOU340 | MINIATURE CIRCUIT BREAKER 240V 40A | Square D by Schneider Electric
Brand: Square D
SKU: QOU340
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![Square D QOU140 QOU Miniature Circuit Breaker, 40A, 1P, 120/240V, 10kA | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-qou140_ad8fc17b-52c8-4b70-827c-7036476fc9c0_medium.png?v=1715271874)
QOU140 | QOU Miniature Circuit Breaker, 40A, 1P, 120 / 240V, 10kA | Square D by Schneider Electric
Brand: Square D
SKU: QOU140
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![Square D HOM240 MINIATURE CIRCUIT BREAKER 120/240V 40A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-hom240_a18fda24-8d7d-4ad6-b074-bd728a232b23_medium.png?v=1715271716)
HOM240 | MINIATURE CIRCUIT BREAKER 120 / 240V 40A | Square D by Schneider Electric
Brand: Square D
SKU: HOM240
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![Square D QO240GFI MINIATURE CIRCUIT BREAKER, 120/240V, 40A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-qo240gfi_73ae1ba8-6caa-42c4-90b6-1d9637467e70_medium.png?v=1715271147)
QO240GFI | MINIATURE CIRCUIT BREAKER, 120 / 240V, 40A | Square D by Schneider Electric
Brand: Square D
SKU: QO240GFI
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![Square D HOM240GFI MINIATURE CIRCUIT BREAKER , 2P, 120/240V, 40A | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/se-hom240gfi_medium.png?v=1715270994)
HOM240GFI | MINIATURE CIRCUIT BREAKER , 2P, 120 / 240V, 40A | Square D by Schneider Electric
Brand: Square D
SKU: HOM240GFI
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