Circuit Breakers

Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,20 A,10 kAIC,Single-pole,120/240V,BR,#14-4 AWG Cu/Al,Q1,BR,Type BR loadcenters Molded Case Circuit Breakers
Mini circuit breaker, Homeline, 20A, 1 pole, 120/240VAC, 10kA AIR, standard type, plug in, UL Miniature Circuit Breakers
Multi 9 - C60BP - MCB - 1P - 20 A - C Curve - 277 V - 10 kA - UL 489 Low Voltage Circuit Breakers
Branch Circuit Breaker, GFCI 1-Pole 20A 120V, 10Ka Interrupt Rating GFCI Circuit Breakers
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  • Eaton
  • Schneider Electric
  • Siemens
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V GFCI Circuit Breakers - 1-Pole, GFCI - BLE, 10KAIC, 120VAC are Circuit Protection Molded Case Circuit Breakers. Sub Brand N/A Type BL Special Features N/A Application Electrical Distribution Standard UL 489 Voltage Rating 120V Amperage Rating 20A Load Rating N/A Frequency Rating N/A Phase N/A Frame N/A Trip Type N/A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 1P
MFR: Siemens
MFR #: BE120
UPC: 783643266100
Item #: 136179
Available to Order
$832.17 each
Availability
Location Available Qty
Siemens
BREAKER BQD 1P 15A 277VAC 14KA UL 10 KAIC
MFR: Siemens
MFR #: BQD115
UPC: 783643277083
Item #: 97756
Available to Order
$311.94 each
Availability
Location Available Qty
Siemens
BREAKER 200A 4P 120/240V 10K QPP 10 KAIC
MFR: Siemens
MFR #: Q2200B
UPC: 783643148734
Item #: 75598
Available to Order
$830.80 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V A mperage Rating 15A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B215H
UPC: 783643263895
Item #: 134491
Available to Order
$392.13 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs are Circuit Protection Molded Case Circuit Breakers. 3-Pole Common-Trip circuit breaker type BQ. Rated 240V (050A) (AIR 10 kA). Special features Load side lugs are included.
MFR: Siemens
MFR #: BQ3B050
UPC: 783643102620
Item #: 189683
Available to Order
$650.28 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs are Circuit Protection Molded Case Circuit Breakers. 3-Pole Common-Trip circuit breaker type BQ. Rated 240V (080A) (AIR 10 kA). Special features Load side lugs are included.
MFR: Siemens
MFR #: BQ3B080
UPC: 783643161283
Item #: 207574
Available to Order
$892.79 each
Availability
Location Available Qty
Siemens
BREAKER BQD 2P 50A 480VAC 14KA 10 KAIC
MFR: Siemens
MFR #: BQD250
UPC: 783643277281
Item #: 95819
Available to Order
$692.33 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V A mperage Rating 100A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B2100H
UPC: 783643263970
Item #: 164241
Available to Order
$842.92 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 3-Pole, 240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QP/MP Application Electrical Distribution Standard UL 489 Voltage Rating 240V Amperage Rating 25A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles 3P
MFR: Siemens
MFR #: Q325
UPC: 783643156753
Item #: 95835
Available to Order
$456.71 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH STANDARD BREAKING CAPACITY. 70A 3-POLE (18KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (LN1E100) WIRE RANGE 10 - 1/0AWG (CU/AL). DIMENSIONS (W x Hx D) IN 3.00 x 6.4 x 3.92.
MFR: Siemens
MFR #: ED43B070L
UPC: 783643236202
Item #: 450771
Available to Order
$2910.14 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY. ALUMINUM BODY LUG FOR 2/3-POLE 30A - 100A ED FRAME BREAKER. WIRE RANGE 10 - 1/0 AWG (CU/AL).SUITABLE FOR LOAD SIDE ONLY. SINGLE LUG.
MFR: Siemens
MFR #: LN1E100
UPC: 783643146969
Item #: 354577
Available to Order
$11.05 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs - Type BQ, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. 2-Pole Common-Trip circuit breaker type BQ. Rated 120/240V (015A) (AIR 10 kA). Special features Load side lugs are included.
MFR: Siemens
MFR #: BQ2B015
UPC: 783643102408
Item #: 179183
Available to Order
$200.46 each
Availability
Location Available Qty
Siemens
Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex, Triplex, Quadplex are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type QT Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V Amperage Rating 15-20A Trip Range Thermal Magnetic Interrupt Rating 10 AIC Number Of Poles Two single poles and one double pole
MFR: Siemens
MFR #: Q21520CT
UPC: 783643194953
Item #: 112605
Available to Order
$265.70 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. STANDARD 40 DEG C BREAKER ED FRAME WITH EXTRA HIGH BREAKING CAPACITY. 20A 3-POLE (18KAIC AT 600V) (65KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES LINE AND LOAD SIDE LUGS (SA1E025) WIRE RANGE 14 - 10AWG (CU) / 12 - 10AWG (AL). DIMENSIONS (W x H x D) IN 3.00 x 6.5 x 3.92.
MFR: Siemens
MFR #: HHED63B020L
UPC: 783643331051
Item #: 206199
Available to Order
$4275.24 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. ASSEMBLED STANDARD 40 DEG C BREAKER FD FRAME WITH STANDARD BREAKING CAPACITY. 150A 3-POLE (22KAIC AT 600V) (35KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (W x H x D) IN 4.50 x 9.5x 4.00.
MFR: Siemens
MFR #: FXD63B150
UPC: 783643211254
Item #: 163471
Available to Order
$7801.44 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Panelboard Mounting 240V Circuit Breakers - Type BL, 2-Pole, 120/240VAC are Circuit Protection Molded Case Circuit Breakers. Type BLH Application Electrical Distribution Standard UL 489 Voltage Rating 120/240V A mperage Rating 40A Trip Range Thermal Magnetic Interrupt Rating 22 AIC Number Of Poles 2P
MFR: Siemens
MFR #: B240H
UPC: 783643263925
Item #: 33682
Available to Order
$392.13 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs are Circuit Protection Molded Case Circuit Breakers. 3-Pole Common-Trip circuit breaker type BQ. Rated 240V (015A) (AIR 10 kA). Special features Load side lugs are included.
MFR: Siemens
MFR #: BQ3B015
UPC: 783643102583
Item #: 186877
Available to Order
$650.28 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH MAGNETIC TRIP ONLYUNIT. STANDARD RANGE ETI BREAKER FD FRAME WITH STAND ARDBREAKING CAPACITY AND NON INTERCHANGEABLE TRIP. MEETS UL 489 / IEC60947-2 STANDARDS. 150A 3-POLE BREAKER (22KAIC AT 600V) (35KAIC AT480V). SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (W x H x D) IN 4.5 x 9.5 x 4._____________________________________________ ___________________________
MFR: Siemens
MFR #: FXD63A150
UPC: 783643212275
Item #: 239507
Available to Order
$11803.86 each
Availability
Location Available Qty
Siemens
OEZ-LK1496-ST250
MFR: Siemens
MFR #: 3VA5220-6ED36-0AA0
UPC: 804766717468
Item #: 1559315
Available to Order
$3625.84 each
Availability
Location Available Qty
Siemens
OEZ-LK1496-ST400
MFR: Siemens
MFR #: 3VA5340-6EC36-1AA0
UPC: 804766803338
Item #: 1572622
Available to Order
$6079.09 each
Availability
Location Available Qty
Siemens
BRKR QPF GFCI 5mA 2P 120/240V 25A 10KA
MFR: Siemens
MFR #: QF225A
UPC: 195125062948
Item #: 1544843
Available to Order
$676.89 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. 3VA51 FRAME WITH STANDARD (CLASS S) BREAKING CAPACITY. 20A 3-POLE (14KAIC AT 600Y/347) (25KAIC AT 480V). TM210 TRIP UNIT WITH FIXED Ir FIXED Ii. SPECIAL FEATURES CONNECTION WITH ALUMINUM LUG. DIMENSIONS (W x H x D) IN 3 x 5.5 x 3.7.
MFR: Siemens
MFR #: 3VA5120-4ED36-0AA0
UPC: 804766831577
Item #: 1537669
Available to Order
$804.60 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. 3VA51 FRAME WITH MEDIUM (CLASS M) BREAKING CAPACITY. 70A 3-POLE (18KAIC AT 600Y/347) (35KAIC AT 480V). TM210 TRIP UNIT WITH FIXED Ir FIXED Ii. SPECIAL FEATURES CONNECTION WITH ALUMINUM LUG. DIMENSIONS (W x H x D) IN 3 x 5.5 x 3.7.
MFR: Siemens
MFR #: 3VA5170-5ED36-0AA0
UPC: 804766832123
Item #: 1559316
Available to Order
$961.57 each
Availability
Location Available Qty
Siemens
BRKR QPF GFCI 5mA 2P 120/240V 35A 10KA
MFR: Siemens
MFR #: QF235A
UPC: 195125062955
Item #: 1570259
Available to Order
$676.89 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA CIRCUIT BREAKER ENCLOSURE NEUTRAL KIT 100%. SUITABLE FOR (125A 3VA5) FRAME UL CIRCUIT BREAKER ENCLOSURES.
MFR: Siemens
MFR #: N125X
UPC: 195125210493
Item #: 1497287
Available to Order
$183.64 each
Availability
Location Available Qty
Siemens
OEZ-LK1496-ST250
MFR: Siemens
MFR #: 3VA5220-5ED36-0AA0
UPC: 804766717383
Item #: 1497290
Available to Order
$2558.76 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA CIRCUIT BREAKER ENCLOSURE. WITHOUT NEUTRAL. NEMA TYPE 3R. SUITABLE FOR (800A 3VA5) / (800A/1000A 3VA6) FRAME UL CIRCUIT BREAKERS
MFR: Siemens
MFR #: 3VAE8003R
UPC: 195125058293
Item #: 1462712
Available to Order
$2931.89 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA UL MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP UNIT. 3VA51 FRAME WITH STANDARD (CLASS S) BREAKING CAPACITY. 70A 3-POLE (14KAIC AT 600Y/347) (25KAIC AT 480V). TM210 TRIP UNIT WITH FIXED Ir FIXED Ii. SPECIAL FEATURES CONNECTION WITH ALUMINUM LUG. DIMENSIONS (W x H x D) IN 3 x 5.5 x 3.7.
MFR: Siemens
MFR #: 3VA5170-4ED36-0AA0
UPC: 804766832109
Item #: 1497286
Available to Order
$880.94 each
Availability
Location Available Qty
Siemens
RP1 250A 65kA @ 480V Main Breaker kit. Includes Strap kit MBKVA5262B and Main Breaker ready to install.
MFR: Siemens
MFR #: MBKVAM3250A
UPC: 195125075191
Item #: 1365303
Available to Order
$6776.63 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA CIRCUIT BREAKER ACCESSORY. 2 INCH HANDLE TIE AND PADLOCK DEVICE FOR (125A 3VA4) FRAME UL CIRCUIT BREAKERS.
MFR: Siemens
MFR #: 3VA9032-0LB20
UPC: 804766951800
Item #: 1304642
Available to Order
$103.27 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA CIRCUIT BREAKER ENCLOSURE NEUTRAL KIT 100%. SUITABLE FOR (400-600A 3VA5) / (400-600A 3VA6) FRAME UL CIRCUIT BREAKER ENCLOSURES.
MFR: Siemens
MFR #: HN656ACB
UPC: 804766827839
Item #: 1389932
Available to Order
$318.69 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE TWIN (TANDEM) PLUG-IN CIRCUIT BREAKER. 20/20A (10kA 120V) COMBINATION TYPE ARC-FAULT TYPE QTA BREAKER.
MFR: Siemens
MFR #: Q2020AFC
UPC: 804766906541
Item #: 1237127
Available to Order
$255.70 each
Availability
Location Available Qty
Siemens
RP1 150A 35kA @ 480V Main Breaker kit. Includes Strap kit MBKVA5262B and Main Breaker ready to install.
MFR: Siemens
MFR #: MBKVAM3150A
UPC: 195125075160
Item #: 1276283
Available to Order
$5474.11 each
Availability
Location Available Qty
Siemens
Low Voltage Circuit Breakers Miniature Thermal Mag Circuit Breakers - Duplex Miniature Circuit Breakers. (2) 20A 1 120V 10kAIC BL
MFR: Siemens
MFR #: B2020
UPC: 804766997709
Item #: 1319662
Available to Order
$198.51 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE TWIN (TANDEM) PLUG-IN CIRCUIT BREAKER. 15/15A (10kA 120V) COMBINATION TYPE ARC-FAULT TYPE QTA BREAKER.
MFR: Siemens
MFR #: Q1515AFC
UPC: 804766906534
Item #: 1237128
Available to Order
$255.70 each
Availability
Location Available Qty
Siemens
OEZ-LK1496-ST250
MFR: Siemens
MFR #: 3VA5212-5ED36-0AA0
UPC: 804766716461
Item #: 1453506
Available to Order
$2205.35 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE TWIN (TANDEM) PLUG-IN CIRCUIT BREAKER. 15/15A (10kA 120V) COMBINATION TYPE ARC-FAULT TYPE QTAN BREAKER.
MFR: Siemens
MFR #: Q1515AFCN
UPC: 804766905292
Item #: 1237126
Available to Order
$255.70 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE TWIN (TANDEM) PLUG-IN CIRCUIT BREAKER. 20/20A (10kA 120V) COMBINATION TYPE ARC-FAULT TYPE QTAN BREAKER.
MFR: Siemens
MFR #: Q2020AFCN
UPC: 804766906503
Item #: 1237129
Available to Order
$255.70 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE 3VA CIRCUIT BREAKER ACCESSORY. DOOR MOUNTED ROTARY OPERATOR. GRAY HANDLE NEMA TYPE 1. SUITABLE FOR (800A 3VA5) / (800-1000A 3VA6) FRAME UL CIRCUIT BREAKERS
MFR: Siemens
MFR #: 3VA9677-0FK21
UPC: 195125030589
Item #: 1457019
Available to Order
$816.82 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETICTRIP UNIT. ASSEMBLED 100 PERCENT RATED STANDARD 40 DEG C BREAKER MD FRAME WITH STANDARD BREAKING CAPACITY. 800A 3-POLE (25KAIC AT 600V) (50KAIC AT 480V). NON-INTERCHANGEABLE TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (W x H x D) IN 9.00 x 16.0 x 6.00.
MFR: Siemens
MFR #: MXD63B800H
UPC: 783643320239
Item #: 1368264
Available to Order
$24436.95 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 175A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR23B175
UPC: 804766136658
Item #: 1115555
Available to Order
$2902.21 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 150A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR23B150
UPC: 804766136641
Item #: 772226
Available to Order
$2663.72 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs, TM - are Circuit Protection Molded Case Circuit Breakers. 2-Pole circuit breaker Type QRH2 HACR rated. Rated 240V (150A). AIR (25 kA). Special features UL listed for reverse feed applications, (AL) load side lugs installed.
MFR: Siemens
MFR #: QRH22B150
UPC: 804766136221
Item #: 1143045
Available to Order
$2440.76 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers General Purpose MCCBs, TM - are Circuit Protection Molded Case Circuit Breakers. 3-Pole circuit breaker Type QRH2 HACR rated. Rated 240V (125A). AIR (25 kA). Special features UL listed for reverse feed applications, (AL) load side lugs installed.
MFR: Siemens
MFR #: QRH23B125
UPC: 804766136771
Item #: 673665
Available to Order
$3726.66 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Accessories. Enclosure for QR circuit breaker type NEMA1 flush mount.
MFR: Siemens
MFR #: QR2N1F
UPC: 804766137556
Item #: 1227037
Available to Order
$779.36 each
Availability
Location Available Qty
Siemens
Low Voltage Molded Case Circuit Breakers Accessories. Enclosure for QR circuit breaker type NEMA1 surface mount.
MFR: Siemens
MFR #: QR2N1S
UPC: 804766137549
Item #: 967008
Available to Order
$779.36 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 225A 2-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR22B225
UPC: 804766136115
Item #: 1241684
Available to Order
$1022.85 each
Availability
Location Available Qty
Siemens
LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH THERMAL - MAGNETIC TRIP. QR FRAME STANDARD 40C BREAKER. 200A 2-POLE (10KA AT 240V). SPECIAL FEATURES BULK PACK, NO LUGS INSTALLED.
MFR: Siemens
MFR #: QR22B200W
UPC: 804766136610
Item #: 1060314
Available to Order
$1016.01 each
Availability
Location Available Qty

About Circuit Breakers

Circuit breakers are a critical component of electrical systems, protecting them against overload or short-circuiting. These devices shut off power when levels exceed a safety threshold in order to prevent damage to equipment or personnel. There are a variety of types of circuit breakers to suit different applications, including miniature, molded case, low voltage, GFCI, and AFCI.