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

Showing 8209 - 8242 of 8242 Items

Sort By:

Per Page

expand_less Brand (3)

+ Show 11 More

expand_less Ways to Shop

expand_less Circuit Breaker Type

+ Show 5 More

expand_less Amperage Rating

+ Show 38 More

expand_less Voltage Rating (AC)

+ Show 11 More

expand_less Mounting

expand_less Number of Poles

expand_less Interrupt Rating

+ Show 14 More

expand_less Trip Type

Discontinued

Siemens

BREAKER 15/20A 1P 120V 10K MH-T DUPLEX

MFR: Siemens

MFR #: MP1520

UPC: 040892521993

Item #: 640963

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 110A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJ23B110

UPC: 783643201088

Item #: 762517

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MP-T Application For Use In 125 AMP And 225 AMP Single Phase Output WMM, WML, WMT meter stacks Standard HACR Rated Voltage Rating 120/240 Amperage Rating 90 Interrupt Rating 10 Number Of Poles 2 Operating Temperature 40

MFR: Siemens

MFR #: MP290

UPC: 040892280005

Item #: 44223

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 225A 2-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJ22B225

UPC: 783643193758

Item #: 214697

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

BREAKER 15A 1P 120V 10K MP-GT GFCI 5MA

MFR: Siemens

MFR #: MP115GFP

UPC: 040892007428

Item #: 748823

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 175A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJ23B175

UPC: 783643193796

Item #: 151001

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

BRKR QJ2H 2P 240V 200A 42KA

MFR: Siemens

MFR #: QJ22B200H

UPC: 783643193956

Item #: 1274409

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Main Breakers - Branch Main Breakers Non-reversible are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MD-T Voltage Rating 120/240 Amperage Rating 150 Interrupt Rating 10 Number Of Poles 2

MFR: Siemens

MFR #: MPD2150

UPC: 040892006421

Item #: 183025

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

BRKR BLHF GFCI 5mA 1P 120V 25A 22KA

MFR: Siemens

MFR #: BF115H

UPC: 783643069596

Item #: 147880

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MP-T Application For Use In 125 AMP And 225 AMP Single Phase Output WMM, WML, WMT meter stacks Standard HACR Rated Voltage Rating 120/240 Amperage Rating 70 Interrupt Rating 10 Number Of Poles 2 Operating Temperature 40

MFR: Siemens

MFR #: MP270

UPC: 040892279801

Item #: 93186

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP, 2-Pole, 120/240VAC are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MP-T Application For Use In 125 AMP And 225 AMP Single Phase Output WMM, WML, WMT meter stacks Standard HACR Rated Voltage Rating 120/240 Amperage Rating 125 Interrupt Rating 10 Number Of Poles 2 Operating Temperature 40

MFR: Siemens

MFR #: MP2125

UPC: 040892281194

Item #: 3686

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Motor Starter protector MSP, IEC, SIRIUS Component in Group Installation ManualCombination Starter Type E Self-protected Group Tap Conductor Protector Trip Class 20, 28 - 40 Amps Frame Size S2 Screw Terminals UL File E47705 in Vol. 7 (1) Sec. 7 (12)

MFR: Siemens

MFR #: 3RV1031-4FB10

UPC: 754554626574

Item #: 562722

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER ACCESSORY. COPPER BODY LUG FOR 2/3-POLE 1200A - 2000A PD AND RD FRAME BREAKER. WIRE RANGE 300 - 600KCMIL (CU/AL) - 5 BARREL LUG. SUITABLE FOR LINE AND LOAD SIDES. SUITS VL PG FRAME WHEN USING MOUNTING BASE (MBPG1600 OR MBPG1601). SINGLE LUG.

MFR: Siemens

MFR #: TC5R600

UPC: 783643244634

Item #: 448146

Available to Order

$1398.35 each

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Molded Case Circuit Breakers Sentron Molded Case Circuit Breakers - MCCB Connection Accessories are Circuit Protection Molded Case Circuit Breakers. BREAKER QJ AL/CU LUGS 1W 300KCMIL

MFR: Siemens

MFR #: TA1Q300

UPC: 783643122703

Item #: 46522

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH SOLID STATE SENSITRIP III ELECTRONIC TRIP UNIT. ASSEMBLED STANDARD 40 DEG C BREAKER MD FRAME WITH STANDARD BREAKING CAPACITY. 800A 3-POLE (25KAIC AT 600V) (50KAIC AT 480V). NON-INTERCHANGEABLE LSIG TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (Wx H x D) IN 9.00 x 16.0 x 6.00.

MFR: Siemens

MFR #: SMD69800ANGT

UPC: 783643251502

Item #: 1004485

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 150A 2-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJ22B150

UPC: 783643193727

Item #: 102121

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 125A 3-POLE (10KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJ23B125

UPC: 783643193772

Item #: 146193

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Motor Starter protector MSP, IEC, SIRIUS Component in Group Installation ManualCombination Starter Starter with 3RV1928-1H adapter Type E Self-protected GroupTap Conductor Protector Trip Class 10, 5.5 - 8 Amps Frame Size S0 Screw Terminals UL File E47705 in Vol.7(1) Sec.9 (11)

MFR: Siemens

MFR #: 3RV1021-1HA10

UPC: 754554409252

Item #: 172099

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

BREAKER 200A 2P 120/240V 10K MD-TR

MFR: Siemens

MFR #: MPD2200R

UPC: 040892006483

Item #: 21514

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP 1-pole 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MP-T, Unmetered Standard UL Listed, HACR Rated Voltage Rating 120 Amperage Rating 20 Interrupt Rating 10 Number Of Poles 1 Operating Temperature 40

MFR: Siemens

MFR #: MP120U

UPC: 040892012187

Item #: 311937

Available to Order

$5115.51 each

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 200A 3-POLE (22KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJH23B200

UPC: 783643193901

Item #: 61406

Available to Order

Availability

Location	Available Qty

Discontinued

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 MP-T Application For Use In 100 AMP, 3-Phase Output WML Meter Stacks Only Standard HACR Rated Voltage Rating 240 Amperage Rating 100 Interrupt Rating 10 Number Of Poles 3 Operating Temperature 40

MFR: Siemens

MFR #: MP3100

UPC: 040892237603

Item #: 371909

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 200A 2-POLE (22KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJH22B200

UPC: 783643193857

Item #: 101347

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Circuit Breakers GFCI - Personnel Protect 1-pole plug-on 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Replaced by US2 QF115A

MFR: Siemens

MFR #: QF115

UPC: 783643148574

Item #: 47653

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE SENTRON MOLDED CASE CIRCUIT BREAKER WITH SOLID STATE SENSITRIP III ELECTRONIC TRIP UNIT. ASSEMBLED STANDARD 40 DEG C BREAKER LD FRAME WITH FUSELESS CURRENT LIMITING BREAKING CAPACITY. 500A 3-POLE (100KAIC AT 600V) (150KAIC AT 480V). NON-INTERCHANGEABLE LIG TRIP UNIT. SPECIAL FEATURES NO LUGS INSTALLED. DIMENSIONS (W x H x D) IN 7.50 x 17.9 x 4.00.

MFR: Siemens

MFR #: SCLD69500G

UPC: 783643217652

Item #: 356802

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Thermal Mag Circuit Breakers - Type QP/MP 1-pole 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. Type MP-T Standard HACR Rated Voltage Rating120 Amperage Rating 30 Interrupt Rating 10 Number Of Poles 1 Operating Temperature 40

MFR: Siemens

MFR #: MP130

UPC: 040892518917

Item #: 144757

Available to Order

$47.85 each

Availability

Location	Available Qty

Discontinued

Siemens

Motor Starter protector MSP, IEC, SIRIUS Component in Group Installation ManualCombination Starter with 3RT1946-4GA07 adapter Type E Self-protected Group Tap Conductor Protector Trip Class 20, 45 - 63 Amps Frame Size S3 Screw Terminals ULFile E47705 in Vol. 7(1) Sec. 8 (13)

MFR: Siemens

MFR #: 3RV1042-4JB10

UPC: 754554730479

Item #: 364363

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE MOLDED CASE CIRCUIT BREAKER WITH TRIP FREE MECHANISM. QJ FRAME STANDARD 40C BREAKER. 100A 3-POLE (22KA AT 240V). SPECIAL FEATURES NO LUGS INSTALLED.

MFR: Siemens

MFR #: QJH23B100

UPC: 783643201194

Item #: 123323

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Motor Starter protector MSP, IEC, SIRIUS Component in Group Installation ManualCombination Starter Type E Self-protected Group Tap Conductor Protector Trip Class 10, 22 - 32 Amps Frame Size S2 Screw Terminals UL File E47705 in Vol. 7 (1) Sec. 7 (12)

MFR: Siemens

MFR #: 3RV1031-4EA10

UPC: 754554409351

Item #: 288123

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Miniature Circuit Breakers GFCI - Personnel Protect 2-pole plug-on 10k are Circuit Protection Load Center Mains, Feeders, and Miniature Circuit Breakers. BREAKER 60A 2P 120/240V 10K QPF GFCI5MA

MFR: Siemens

MFR #: QF260

UPC: 783643273771

Item #: 166459

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

MFR: Siemens

MFR #: MPD2175

UPC: 040892006414

Item #: 1188737

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

Low Voltage Residential Circuit Breakers Main Breakers - Type QPP/MPP Breakers are Circuit Protection Load Center Mains, Feeders, and Miniature CircuitBreakers. Type MPP Voltage Rating 120/240 Amperage Rating 200 Interrupt Rating 10 Number Of Poles 4

MFR: Siemens

MFR #: MPP2200

UPC: 040892528664

Item #: 1206633

Available to Order

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE PL SERIES LOAD CENTER. FACTORY INSTALLED MAINBREAKER WITH 20 1-INCH SPACES ALLOWING MAX 20 CIRCUITS. 1-PHASE 3-WIRESYSTEM RATED 120/240V (100A) 22KA INTERRUPT. SPECIAL FEATURES COPPERBUS, INTERCHANGEABLE MAIN, GRAY TRIM, NEMA TYPE1 ENCLOSURE FOR INDOORUSE.. REPLACED BY PN2020B1100C. AVAILABLE 4/1/2020

MFR: Siemens

MFR #: P2020B1100CU

UPC: 040892650013

Item #: 27460

Available to Order

$400.00 each

Availability

Location	Available Qty

Discontinued

Siemens

LOW VOLTAGE ES SERIES LOAD CENTER. MAIN LUG WITH 40 1-INCHSPACES ALLOWING MAX 40 CIRCUITS. 1-PHASE 3-WIRE SYSTEM RATED 120/240V(200A) 100KA INTERRUPT. SPECIAL FEATURES ALUMINUM BUS, GRAY TRIM, NEMATYPE1 ENCLOSURE FOR INDOOR USE.. REPLACED BY SN4040L1200. AVAILABLE 4/1/2020

MFR: Siemens

MFR #: S4040L1200

UPC: 040892651362

Item #: 58275

Available to Order

$430.30 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.