Square-d Circuit breakers Category

We have over 6,000 Square D products ranging from circuit breakers and soft starters to load centers, safety switches and VFDs. Shop today for Square D products!

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View Details Square D HOM215GFI MINIATURE CIRCUIT BREAKER, 2P, 120/240V 15A | Blackhawk Supply
HOM215GFI | MINIATURE CIRCUIT BREAKER, 2P, 120 / 240V 15A | Square D
Brand: Square D
SKU: HOM215GFI
$128.25 each
View Details Square D HDL36125 PowerPact H Frame Molded Case Circuit Breaker, Thermal-magnetic, 125A, 3-Poles, 600V, 14kA | Blackhawk Supply
HDL36125 | PowerPact H Frame Molded Case Circuit Breaker, Thermal-magnetic, 125A, 3-Poles, 600V, 14kA | Square D
Brand: Square D
SKU: HDL36125
$1,321.65 each
View Details Square D S48493 Masterpact NW Circuit Breaker Shunt Trip/Close, Y-Frame, 100-130V AC/DC | Blackhawk Supply
S48493 | Masterpact NW Circuit Breaker Shunt Trip / Close, Y-Frame, 100-130V AC / DC | Square D
Brand: Square D
SKU: S48493
$821.48 each
View Details Square D QOU390 QOU Miniature Circuit Breaker, 90A, 3P, 240V, 10kA | Blackhawk Supply
QOU390 | QOU Miniature Circuit Breaker, 90A, 3P, 240V, 10kA | Square D
Brand: Square D
SKU: QOU390
$221.06 each
View Details Square D QOB350 Miniature Circuit Breaker (QOB) Standard, 50A, 3-Pole, 240 Vac, 3-Phase, Bolt-On | Blackhawk Supply
QOB350 | Miniature Circuit Breaker (QOB) Standard, 50A, 3-Pole, 240 Vac, 3-Phase, Bolt-On | Square D
Brand: Square D
SKU: QOB350
$90.79 each
View Details Square D QOB120VH MINIATURE CIRCUIT BREAKER 120/240V 20A | Blackhawk Supply
QOB120VH | MINIATURE CIRCUIT BREAKER 120 / 240V 20A | Square D
Brand: Square D
SKU: QOB120VH
$24.98 each
View Details Square D QO2100 MINIATURE CIRCUIT BREAKER 120/240V 100A | Blackhawk Supply
QO2100 | MINIATURE CIRCUIT BREAKER 120 / 240V 100A | Square D
Brand: Square D
SKU: QO2100
$116.10 each
View Details Square D QO1520 MINIATURE CIRCUIT BREAKER, QO Tandem, 15/20 A, 1P, 120/240 V, 10 kA, Plug in | Blackhawk Supply
QO1520 | MINIATURE CIRCUIT BREAKER, QO Tandem, 15 / 20 A, 1P, 120 / 240 V, 10 kA, Plug in | Square D
Brand: Square D
SKU: QO1520
$69.19 each
View Details Square D M9F42315 Multi 9-C60BP MCB, 3P, 15 A, C Curve, 480Y/277 V,10 kA, UL 489 | Blackhawk Supply
M9F42315 | Multi 9-C60BP MCB, 3P, 15 A, C Curve, 480Y / 277 V, 10 kA, UL 489 | Square D
Brand: Square D
SKU: M9F42315
$265.28 each
View Details Square D M9F42206 Multi 9-C60BP MCB, 2P, 6 A, C Curve, 480Y/277 V,10 kA, UL 489 | Blackhawk Supply
M9F42206 | Multi 9-C60BP MCB, 2P, 6 A, C Curve, 480Y / 277 V, 10 kA, UL 489 | Square D
Brand: Square D
SKU: M9F42206
$183.60 each
View Details Square D M9F23340 Multi 9 C60SP, Miniature circuit-breaker 3P, 40 A, D Curve, 480Y/277 V, 5 kA, UL 1077 | Blackhawk Supply
M9F23340 | Multi 9 C60SP, Miniature circuit-breaker 3P, 40 A, D Curve, 480Y / 277 V, 5 kA, UL 1077 | Square D
Brand: Square D
SKU: M9F23340
$230.18 each
View Details Square D M9F22350 Multi 9 C60SP Miniature circuit-breaker, 3P, 50 A, C Curve, 480Y/277 V, 5 kA, UL 1077 | Blackhawk Supply
M9F22350 | Multi 9 C60SP Miniature circuit-breaker, 3P, 50 A, C Curve, 480Y / 277 V, 5 kA, UL 1077 | Square D
Brand: Square D
SKU: M9F22350
$240.30 each
View Details Square D HOM220CAFI MINIATURE CIRCUIT BREAKER, 120/240V, 20A | Blackhawk Supply
HOM220CAFI | MINIATURE CIRCUIT BREAKER, 120 / 240V, 20A | Square D
Brand: Square D
SKU: HOM220CAFI
$579.83 each
View Details Square D HOM2100 MINIATURE CIRCUIT BREAKER, 2P, 120/240V 100A | Blackhawk Supply
HOM2100 | MINIATURE CIRCUIT BREAKER, 2P, 120 / 240V 100A | Square D
Brand: Square D
SKU: HOM2100
$68.85 each
View Details Square D HJL36030M71 MOTOR CIRCUIT PROTECTOR 600V 30A | Blackhawk Supply
HJL36030M71 | MOTOR CIRCUIT PROTECTOR 600V 30A | Square D
Brand: Square D
SKU: HJL36030M71
$1,072.91 each
View Details Square D EDB34070 Miniature Circuit Breaker, 70A, 3-Pole, 480Y/277V AC, 18/25kA, Bolt-on Mount | Blackhawk Supply
EDB34070 | Miniature Circuit Breaker, 70A, 3-Pole, 480Y / 277V AC, 18 / 25kA, Bolt-on Mount | Square D
Brand: Square D
SKU: EDB34070
$386.10 each
View Details Square D EDB34060 Miniature Circuit Breaker, 60A, 3-Pole, 480Y/277V AC, 18/25kA, Bolt-on Mount | Blackhawk Supply
EDB34060 | Miniature Circuit Breaker, 60A, 3-Pole, 480Y / 277V AC, 18 / 25kA, Bolt-on Mount | Square D
Brand: Square D
SKU: EDB34060
$283.84 each
View Details Square D BDL36030 PowerPact B Circuit Breaker, 30A, 3P, 600Y/347V AC, 14kA at 600Y/347 UL EverLink | Blackhawk Supply
BDL36030 | PowerPact B Circuit Breaker, 30A, 3P, 600Y / 347V AC, 14kA at 600Y / 347 UL EverLink | Square D
Brand: Square D
SKU: BDL36030
$826.20 each
View Details Square D S32600 PowerPact Rotary Handle, L-Frame, Door Mounted, Red | Blackhawk Supply
S32600 | PowerPact Rotary Handle, L-Frame, Door Mounted, Red | Square D
Brand: Square D
SKU: S32600
$458.33 each
View Details Square D S29338 CIRCUIT BREAKER ROTARY HANDLE | Blackhawk Supply
S29338 | CIRCUIT BREAKER ROTARY HANDLE | Square D
Brand: Square D
SKU: S29338
$357.75 each
View Details Square D QOU360 QO Miniature Circuit Breaker, 60A, 3-Pole, 240V AC, 48V DC, 10kA, Unit Mount | Blackhawk Supply
QOU360 | QO Miniature Circuit Breaker, 60A, 3-Pole, 240V AC, 48V DC, 10kA, Unit Mount | Square D
Brand: Square D
SKU: QOU360
$151.54 each
View Details Square D QOU230 QO Miniature Circuit Breaker, 30A, 2-Pole, 120V, 10kA, Plug-in Mount | Blackhawk Supply
QOU230 | QO Miniature Circuit Breaker, 30A, 2-Pole, 120V, 10kA, Plug-in Mount | Square D
Brand: Square D
SKU: QOU230
$45.56 each
View Details Square D QOU220 Miniature Circuit Breaker120/240V 20A | Blackhawk Supply
QOU220 | Miniature Circuit Breaker120 / 240V 20A | Square D
Brand: Square D
SKU: QOU220
$45.56 each
View Details Square D QOB230HID MINIATURE CIRCUIT BREAKER 240V 30A | Blackhawk Supply
QOB230HID | MINIATURE CIRCUIT BREAKER 240V 30A | Square D
Brand: Square D
SKU: QOB230HID
$81.68 each
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LF120 US | Damper Actuator | 35 in-lb | Spg Rtn | 120V | On/Off | Belimo
Brand: Belimo
SKU: LF120 US
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Contemporary Controls EISK5-100T 5-port 10BASE-T/100BASE-TX Skorpion switch, DIN-rail mount | Blackhawk Supply
EISK5-100T | 5-port 10BASE-T/100BASE-TX Skorpion switch, DIN-rail mount | Contemporary Controls
Brand: Contemporary Controls
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iO HVAC Controls iO-WR Wireless Relay | Blackhawk Supply
iO-WR | Wireless Relay | iO HVAC Controls
Brand: iO HVAC Controls
SKU: iO-WR
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Johnson Controls A421ABC-02C Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 6' 6" lead, -40 to 212F, HTG/CLG | Blackhawk Supply
A421ABC-02C | Single Stage Temp Controller with Sensor, 120/240VAC, NEMA1, 6' 6" lead, -40 to 212F, HTG/CLG | Johnson Controls
Brand: Johnson Controls
SKU: A421ABC-02C
$121.09 each
Belimo ZTH US Handheld programming tool with ZK1-GEN | ZK2-GEN and ZK6-GEN. | Blackhawk Supply
ZTH US | Handheld programming tool with ZK1-GEN | ZK2-GEN and ZK6-GEN. | Belimo
Brand: Belimo
SKU: ZTH US
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Veris H221 Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop | Blackhawk Supply
H221 | Split Core | Span Adj. | Range: 0-300AAC | Output: 4-20mA | Loop | Veris
Brand: Veris
SKU: H221
$141.60 each
iO HVAC Controls IO-WRP WIRELESS RELAY PLUS | Blackhawk Supply
IO-WRP | WIRELESS RELAY PLUS | iO HVAC Controls
Brand: iO HVAC Controls
SKU: IO-WRP
$439.54 each
Contemporary Controls EISK8-100T 8-port 10BASE-T/100BASE-TX Skorpion switch, DIN-rail mount | Blackhawk Supply
EISK8-100T | 8-port 10BASE-T/100BASE-TX Skorpion switch, DIN-rail mount | Contemporary Controls
Brand: Contemporary Controls
SKU: EISK8-100T
$180.94 each
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