.hide-partial { max-height: none; } .show-more { display: none; }

Square D Circuit Breakers & Accessories

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Breakers & Accessories

List Images

Results: 4,581

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 30A

QOU130
Square D
1: ¥5,757
2In Stock
New At Mouser

Mfr. Part #
QOU130

Mouser Part #
996-QOU130

New At Mouser

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 30A

Datasheet

2In Stock

¥5,757

Min.: 1
Mult.: 1

Circuit Breaker Accessories CIRCUIT BREAKER AUXILIARY SWITCH

S29452
Square D
1: ¥48,811.8
3In Stock

Mfr. Part #
S29452

Mouser Part #
996-S29452

Square D

Circuit Breaker Accessories CIRCUIT BREAKER AUXILIARY SWITCH

Datasheet

3In Stock

¥48,811.8

Min.: 1
Mult.: 1

Circuit Breaker Accessories CIRCUIT BREAKER PHASE BARRIERS 3

S33646
Square D
1: ¥6,004.5
1In Stock
New At Mouser

Mfr. Part #
S33646

Mouser Part #
996-S33646

New At Mouser

Square D

Circuit Breaker Accessories CIRCUIT BREAKER PHASE BARRIERS 3

Datasheet

1In Stock

¥6,004.5

Min.: 1
Mult.: 1

Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 45A

HGL36045
Square D
1: ¥247,987.3
1In Stock
New At Mouser

Mfr. Part #
HGL36045

Mouser Part #
996-HGL36045

New At Mouser

Square D

Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 45A

Datasheet

1In Stock

¥247,987.3

Min.: 1
Mult.: 1

Circuit Breakers MOTOR CIRCUIT PROTECTOR 600V 30A

HJL36030M71
Square D
1: ¥180,884.6
1In Stock

Mfr. Part #
HJL36030M71

Mouser Part #
996-HJL36030M71

Square D

Circuit Breakers MOTOR CIRCUIT PROTECTOR 600V 30A

Datasheet

1In Stock

¥180,884.6

Min.: 1
Mult.: 1

Circuit Breaker Accessories CB FIXED HANDLE PADLOCK OFF ONLY UNIT MT

LV426906
Square D
1: ¥14,361
2In Stock
New At Mouser

Mfr. Part #
LV426906

Mouser Part #
996-LV426906

New At Mouser

Square D

Circuit Breaker Accessories CB FIXED HANDLE PADLOCK OFF ONLY UNIT MT

Datasheet

2In Stock

¥14,361

Min.: 1
Mult.: 1

Circuit Breaker Accessories CB EVERLINK LUG KIT 3P W/ CW TAP

LV426974
Square D
1: ¥15,583.5
2In Stock
New At Mouser

Mfr. Part #
LV426974

Mouser Part #
996-LV426974

New At Mouser

Square D

Circuit Breaker Accessories CB EVERLINK LUG KIT 3P W/ CW TAP

Datasheet

2In Stock

¥15,583.5

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 20A

QOB2201200FT
Square D
1: ¥80,352.5
2In Stock

Mfr. Part #
QOB2201200FT

Mouser Part #
996-QOB2201200FT

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 20A

Datasheet

2In Stock

¥80,352.5

¥66,572.9

¥61,350.7

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 120V 30A

QOB130
Square D
1: ¥7,878.1
5In Stock

Mfr. Part #
QOB130

Mouser Part #
996-QOB130

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120V 30A

Datasheet

5In Stock

¥7,878.1

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 100A

QOB2100
Square D
1: ¥46,536.2
2In Stock

Mfr. Part #
QOB2100

Mouser Part #
996-QOB2100

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 100A

Datasheet

2In Stock

¥46,536.2

View

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 20A

QOB220
Square D
1: ¥20,943.5
5In Stock

Mfr. Part #
QOB220

Mouser Part #
996-QOB220

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 20A

Datasheet

5In Stock

¥20,943.5

¥19,354

View

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 240V 50A

QOB350
Square D
1: ¥60,088.3
1In Stock
New Product

Mfr. Part #
QOB350

Mouser Part #
996-QOB350

New Product

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 240V 50A

Datasheet

1In Stock

¥60,088.3

Min.: 1
Mult.: 1

Circuit Breakers Multi9 C60BP 1P C 1A 10kA 277V UL489

M9F42101
Square D
1: ¥15,887.5
1In Stock
Factory Special Order

Mfr. Part #
M9F42101

Mouser Part #
996-M9F42101

Factory Special Order

Square D

Circuit Breakers Multi9 C60BP 1P C 1A 10kA 277V UL489

Datasheet

1In Stock

¥15,887.5

Min.: 1
Mult.: 1

Circuit Breakers Multi9 C60BPR 1P C 20A 10kA 277V UL489

M9F52120
Square D
1: ¥15,100.2
3Expected 8/27/2026

Mfr. Part #
M9F52120

Mouser Part #
996-M9F52120

Square D

Circuit Breakers Multi9 C60BPR 1P C 20A 10kA 277V UL489

Datasheet

3Expected 8/27/2026

¥15,100.2

Min.: 1
Mult.: 1

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 10A

QOU1105283
Square D
1: ¥10,916.1
1Expected 8/27/2026
New At Mouser

Mfr. Part #
QOU1105283

Mouser Part #
996-QOU1105283

New At Mouser

Square D

Circuit Breakers MINIATURE CIRCUIT BREAKER 120/240V 10A

Datasheet

1Expected 8/27/2026

¥10,916.1

Min.: 1
Mult.: 1

Circuit Breakers CIRCUIT BREAKER FINGERSAFE COVER

QOULFSC1
Square D
1: ¥431.9
120On Order
New At Mouser

Mfr. Part #
QOULFSC1

Mouser Part #
996-QOULFSC1

New At Mouser

Square D

Circuit Breakers CIRCUIT BREAKER FINGERSAFE COVER

Datasheet

120On Order

¥431.9

Min.: 1
Mult.: 1

Circuit Breaker Accessories TYPE L CB MECH KIT WITH HANDLE, B-FRAME

9421LB4
Square D
1: ¥31,080.6
Non-Stocked Lead-Time 7 Weeks
New At Mouser

Mfr. Part #
9421LB4

Mouser Part #
996-9421LB4

New At Mouser

Square D

Circuit Breaker Accessories TYPE L CB MECH KIT WITH HANDLE, B-FRAME

Datasheet

Non-Stocked Lead-Time 7 Weeks

¥31,080.6

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 100AMP NEMA

9421LF1
Square D
1: ¥25,059.5
Non-Stocked Lead-Time 5 Weeks
New At Mouser

Mfr. Part #
9421LF1

Mouser Part #
996-9421LF1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 100AMP NEMA

Datasheet

Non-Stocked Lead-Time 5 Weeks

¥25,059.5

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM HANDLE NEMA

9421LH43
Square D
1: ¥62,294.1
Non-Stocked Lead-Time 9 Weeks
New At Mouser

Mfr. Part #
9421LH43

Mouser Part #
996-9421LH43

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM HANDLE NEMA

Datasheet

Non-Stocked Lead-Time 9 Weeks

¥62,294.1

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM LONG SHAFT NEMA

9421LS10
Square D
1: ¥8,829.9
Non-Stocked Lead-Time 7 Weeks
New At Mouser

Mfr. Part #
9421LS10

Mouser Part #
996-9421LS10

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM LONG SHAFT NEMA

Datasheet

Non-Stocked Lead-Time 7 Weeks

¥8,829.9

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM STANDARD SHAFT NEMA

9421LS8
Square D
1: ¥4,144.2
Non-Stocked Lead-Time 3 Weeks
New At Mouser

Mfr. Part #
9421LS8

Mouser Part #
996-9421LS8

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM STANDARD SHAFT NEMA

Datasheet

Non-Stocked Lead-Time 3 Weeks

¥4,144.2

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECHANISM NEMA

9422CLA50
Square D
1: ¥124,633.1
Non-Stocked Lead-Time 4 Weeks
New At Mouser

Mfr. Part #
9422CLA50

Mouser Part #
996-9422CLA50

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECHANISM NEMA

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥124,633.1

Min.: 1
Mult.: 1

Circuit Breaker Accessories DUAL CABLE OPERATOR FOR TWO NSF CIR BRKR

9422CSFD1
Square D
1: ¥171,370.4
Non-Stocked Lead-Time 4 Weeks
New At Mouser

Mfr. Part #
9422CSFD1

Mouser Part #
996-9422CSFD1

New At Mouser

Square D

Circuit Breaker Accessories DUAL CABLE OPERATOR FOR TWO NSF CIR BRKR

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥171,370.4

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECH VARIABLE DEPTH IEC

9422RQ1
Square D
1: ¥72,497.7
Non-Stocked Lead-Time 4 Weeks
New At Mouser

Mfr. Part #
9422RQ1

Mouser Part #
996-9422RQ1

New At Mouser

Square D

Circuit Breakers OPERATING MECH VARIABLE DEPTH IEC

Datasheet

Non-Stocked Lead-Time 4 Weeks

¥72,497.7

Min.: 1
Mult.: 1

Circuit Breaker Accessories CIRCUIT BREAKER MECHANICAL LUG KIT 4

AL1200P25K4
Square D
1: ¥106,988.3
Non-Stocked Lead-Time 5 Weeks
New At Mouser

Mfr. Part #
AL1200P25K4

Mouser Part #
996-AL1200P25K4

New At Mouser

Square D

Circuit Breaker Accessories CIRCUIT BREAKER MECHANICAL LUG KIT 4

Datasheet

Non-Stocked Lead-Time 5 Weeks

¥106,988.3

Min.: 1
Mult.: 1