Square-d Circuit breakers Category

We have 6600+ Square-D products ranging from circuit breakers and load centers to soft starters and VFDs. Shop today for Square-D products!
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View Details Square D QOB120VH MINIATURE CIRCUIT BREAKER 120/240V 20A | Blackhawk Supply
QOB120VH | MINIATURE CIRCUIT BREAKER 120 / 240V 20A | Square D by Schneider Electric
Brand: Square D
SKU: QOB120VH
$30.51 each
View Details Square D QO340GFI MINIATURE CIRCUIT BREAKER, QO, 40 A, 3P, 208Y/120 V, 10 kA, Plug in, GFI | Blackhawk Supply
QO340GFI | MINIATURE CIRCUIT BREAKER, QO, 40 A, 3P, 208Y / 120 V, 10 kA, Plug in, GFI | Square D by Schneider Electric
Brand: Square D
SKU: QO340GFI
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View Details Square D QO320 MINIATURE CIRCUIT BREAKER 240V 20A | Blackhawk Supply
QO320 | MINIATURE CIRCUIT BREAKER 240V 20A | Square D by Schneider Electric
Brand: Square D
SKU: QO320
$144.26 each
View Details Square D QO3020 MINIATURE CIRCUIT BREAKER 240V 30/20A | Blackhawk Supply
QO3020 | MINIATURE CIRCUIT BREAKER 240V 30 / 20A | Square D by Schneider Electric
Brand: Square D
SKU: QO3020
$68.75 each
View Details Square D QO270 QO Miniature Circuit-Breaker, 70 A, 2 pole, 120/240 V, 10 kA, plug in | Blackhawk Supply
QO270 | QO Miniature Circuit-Breaker, 70 A, 2 pole, 120 / 240 V, 10 kA, plug in | Square D by Schneider Electric
Brand: Square D
SKU: QO270
$77.09 each
View Details Square D M9F43205 MULTI 9 - C60BP MINIATURE CIRCUIT-BREAKER, 2P, 5 A, D CURVE, 480Y/277 V, 10 KA, UL 489 | Blackhawk Supply
M9F43205 | MULTI 9 - C60BP MINIATURE CIRCUIT-BREAKER, 2P, 5 A, D CURVE, 480Y / 277 V, 10 KA, UL 489 | Square D by Schneider Electric
Brand: Square D
SKU: M9F43205
$165.12 each
View Details Square D M9F21302 Multi 9 C60SP Miniature Circuit-breaker, 3P, 2 A, B Curve, 480Y/277 V, 10 kA, UL 1077 | Blackhawk Supply
M9F21302 | Multi 9 C60SP Miniature Circuit-breaker, 3P, 2 A, B Curve, 480Y / 277 V, 10 kA, UL 1077 | Square D by Schneider Electric
Brand: Square D
SKU: M9F21302
$184.59 each
View Details Square D M9F17116 MULTI 9 - C60L - MINIATURE CIRCUIT-BREAKER, 1P, 16 A, C CURVE, 240 V, 25 KA | Blackhawk Supply
M9F17116 | MULTI 9 - C60L - MINIATURE CIRCUIT-BREAKER, 1P, 16 A, C CURVE, 240 V, 25 KA | Square D by Schneider Electric
Brand: Square D
SKU: M9F17116
$45.46 each
View Details Square D JJA36250 MOLDED CASE CIRCUIT BREAKER 600V 250A | Blackhawk Supply
JJA36250 | MOLDED CASE CIRCUIT BREAKER 600V 250A | Square D by Schneider Electric
Brand: Square D
SKU: JJA36250
$4,852.15 each
View Details Square D JGL36000S17 POWERPACT AUTOMATIC MOULDED CASE SWITCH 600V 175 A J-Frame | Blackhawk Supply
JGL36000S17 | POWERPACT AUTOMATIC MOULDED CASE SWITCH 600V 175 A J-Frame | Square D by Schneider Electric
Brand: Square D
SKU: JGL36000S17
$1,741.25 each
View Details Square D HOM120PDF Homeline Miniature Circuit Breaker, 20A, 120V AC, Plug-in, 1-Pole, 10kA | Blackhawk Supply
HOM120PDF | Homeline Miniature Circuit Breaker, 20A, 120V AC, Plug-in, 1-Pole, 10kA | Square D by Schneider Electric
Brand: Square D
SKU: HOM120PDF
View Details
View Details Square D HJP36100M73 POWERPACT H CIRCUIT BREAKER, MOTOR PROTECTOR, 100A, 3P, 600V, 25KA | Blackhawk Supply
HJP36100M73 | POWERPACT H CIRCUIT BREAKER, MOTOR PROTECTOR, 100A, 3P, 600V, 25KA | Square D by Schneider Electric
Brand: Square D
SKU: HJP36100M73
$1,253.89 each
View Details Square D HJL36150M74 PowerPact H Circuit Breaker, MotorProtector, 50A, 3P, 600V, 25kA | Blackhawk Supply
HJL36150M74 | PowerPact H Circuit Breaker, MotorProtector, 50A, 3P, 600V, 25kA | Square D by Schneider Electric
Brand: Square D
SKU: HJL36150M74
$1,576.13 each
View Details Square D EDB34125 Miniature Circuit Breaker, 125A, 3-Pole, 480Y/277V AC, 18/25kA, Bolt-on Mount | Blackhawk Supply
EDB34125 | Miniature Circuit Breaker, 125A, 3-Pole, 480Y / 277V AC, 18 / 25kA, Bolt-on Mount | Square D by Schneider Electric
Brand: Square D
SKU: EDB34125
$846.47 each
View Details Square D 9422CMP50 CABLE OPERATING MECHANISM NEMA | Blackhawk Supply
9422CMP50 | CABLE OPERATING MECHANISM NEMA | Square D by Schneider Electric
Brand: Square D
SKU: 9422CMP50
$758.17 each
View Details Square D HOM115GFI MINIATURE CIRCUIT BREAKER, 1P, 120V 15A | Blackhawk Supply
HOM115GFI | MINIATURE CIRCUIT BREAKER, 1P, 120V 15A | Square D
Brand: Square D
SKU: HOM115GFI
$65.97 each
View Details Square D S33669 CB UNDERVOLTAGE TRIP 48-60V AC/DC | Blackhawk Supply
S33669 | CB UNDERVOLTAGE TRIP 48-60V AC / DC | Square D by Schneider Electric
Brand: Square D
SKU: S33669
$723.06 each
View Details Square D S29450 Auxiliary Switch; for H; J; L; M; P and R Frame PowerPact Breakers | Blackhawk Supply
S29450 | Auxiliary Switch; for H; J; L; M; P and R Frame PowerPact Breakers | Square D by Schneider Electric
Brand: Square D
SKU: S29450
$189.46 each
View Details Square D S29386 CIRCUIT BREAKER SHUNT TRIP 110-130V AC | Blackhawk Supply
S29386 | CIRCUIT BREAKER SHUNT TRIP 110-130V AC | Square D by Schneider Electric
Brand: Square D
SKU: S29386
$433.49 each
View Details Square D S144A 6.0A LSIG CIRCUIT BREAKER MICROLOGIC TRIP UNIT | Blackhawk Supply
S144A | 6.0A LSIG CIRCUIT BREAKER MICROLOGIC TRIP UNIT | Square D by Schneider Electric
Brand: Square D
SKU: S144A
$7,072.43 each
View Details Square D QOU130 MINIATURE CIRCUIT BREAKER 120/240V 30A | Blackhawk Supply
QOU130 | MINIATURE CIRCUIT BREAKER 120 / 240V 30A | Square D by Schneider Electric
Brand: Square D
SKU: QOU130
View Details
View Details Square D QOB230HID MINIATURE CIRCUIT BREAKER 240V 30A | Blackhawk Supply
QOB230HID | MINIATURE CIRCUIT BREAKER 240V 30A | Square D by Schneider Electric
Brand: Square D
SKU: QOB230HID
$77.44 each
View Details Square D QOB220 MINIATURE CIRCUIT BREAKER 120/240V 20A | Blackhawk Supply
QOB220 | MINIATURE CIRCUIT BREAKER 120 / 240V 20A | Square D by Schneider Electric
Brand: Square D
SKU: QOB220
$54.84 each
View Details Square D QO360 QO Miniature circuit-breaker, 60 A, 3 pole, 120/240 V, 10 kA, plug in | Blackhawk Supply
QO360 | QO Miniature circuit-breaker, 60 A, 3 pole, 120 / 240 V, 10 kA, plug in | Square D by Schneider Electric
Brand: Square D
SKU: QO360
$144.26 each
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Taco I075U3R-1 3/4", 3 Way Outdoor Reset I-Series Mixing Valve (Union Sweat) | Blackhawk Supply
I075U3R-1 | 3/4", 3 Way Outdoor Reset I-Series Mixing Valve (Union Sweat) | Taco
Brand: Taco
SKU: I075U3R-1
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KMC RCC-1502 Relay: Reversing, 8 PSI, High Capacity, Bracket | Blackhawk Supply
RCC-1502 | Relay: Reversing, 8 PSI, High Capacity, Bracket | KMC
Brand: KMC
SKU: RCC-1502
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Veris PX3DLX02S Pressure,Dry,Duct,LCD,1-10 InWC | Blackhawk Supply
PX3DLX02S | Pressure, Dry, Duct, LCD, 1-10 InWC | Veris
Brand: Veris
SKU: PX3DLX02S
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Square D NF418L1C Panelboard interior, NF, main lugs, 125A, Cu bus, 18 pole spaces, 3 phase, 4 wire, 600Y/347VAC max | Blackhawk Supply
NF418L1C | Panelboard interior, NF, main lugs, 125A, Cu bus, 18 pole spaces, 3 phase, 4 wire, 600Y/347VAC max | Square D by Schneider Electric
Brand: Square D
SKU: NF418L1C
$690.04 each
Johnson Controls M9335-HGA-2 ACT. 310IN.LB NSR 24V | Blackhawk Supply
M9335-HGA-2 | ACT. 310IN.LB NSR 24V | Johnson Controls
Brand: Johnson Controls
SKU: M9335-HGA-2
$402.80 each
Bell & Gossett 60A0B6001 Autocirc Circulator w/ Built-In Fixed Thermostat & Timer, Lead Free Brass (1/2" NPT) | Blackhawk Supply
60A0B6001 | Autocirc Circulator w/ Built-In Fixed Thermostat & Timer, Lead Free Brass (1/2" NPT) | Bell & Gossett
Brand: Bell & Gossett
SKU: 60A0B6001
$605.50 each
Schneider Electric MF51-7103-100 Damper Actuator | 105 lbf | Spg Rtn | 24V | Floating | Blackhawk Supply
MF51-7103-100 | Damper Actuator | 105 lbf | Spg Rtn | 24V | Floating | Schneider Electric
Brand: Schneider Electric
SKU: MF51-7103-100
$237.19 each
Hayward GG225X50 1/4" X 1/2" CPVC Gauge Guard w/FPM diaphragm | Blackhawk Supply
GG225X50 | 1/4" X 1/2" CPVC Gauge Guard w/FPM diaphragm | Hayward
Brand: Hayward
SKU: GG225X50
$146.18 each
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