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

Square D Circuit Protection

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

Types of Circuit Protection

List Images

Results: 5,073

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 OPERATING MECHANISM 600VAC 250AMP NEMA

9421LK1
Square D
1: ¥35,336.1
Non-Stocked
New At Mouser

Mfr. Part #
9421LK1

Mouser Part #
996-9421LK1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 250AMP NEMA

Datasheet

Non-Stocked

¥35,336.1

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 400AMP NEMA

9421LL1
Square D
1: ¥51,937.8
Non-Stocked
New At Mouser

Mfr. Part #
9421LL1

Mouser Part #
996-9421LL1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 400AMP NEMA

Datasheet

Non-Stocked

¥51,937.8

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 250AMP NEMA

9421LP1
Square D
1: ¥52,251.7
Non-Stocked
New At Mouser

Mfr. Part #
9421LP1

Mouser Part #
996-9421LP1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 250AMP NEMA

Datasheet

Non-Stocked

¥52,251.7

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 250AMP NEMA

9421LP4
Square D
1: ¥66,699.1
Non-Stocked
New At Mouser

Mfr. Part #
9421LP4

Mouser Part #
996-9421LP4

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 250AMP NEMA

Datasheet

Non-Stocked

¥66,699.1

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 400AMP NEMA

9421LR1
Square D
1: ¥73,947.7
Non-Stocked
New At Mouser

Mfr. Part #
9421LR1

Mouser Part #
996-9421LR1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 400AMP NEMA

Datasheet

Non-Stocked

¥73,947.7

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM LONG SHAFT NEMA

9421LS12
Square D
1: ¥8,829.9
Non-Stocked
New At Mouser

Mfr. Part #
9421LS12

Mouser Part #
996-9421LS12

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM LONG SHAFT NEMA

Datasheet

Non-Stocked

¥8,829.9

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 800AMP NEMA

9421LT1
Square D
1: ¥85,410.3
Non-Stocked
New At Mouser

Mfr. Part #
9421LT1

Mouser Part #
996-9421LT1

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 800AMP NEMA

Datasheet

Non-Stocked

¥85,410.3

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM 600VAC 800AMP NEMA

9421LT4
Square D
1: ¥90,009.6
Non-Stocked
New At Mouser

Mfr. Part #
9421LT4

Mouser Part #
996-9421LT4

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM 600VAC 800AMP NEMA

Datasheet

Non-Stocked

¥90,009.6

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 1000A KIT

9421LW1
Square D
1: ¥46,684.1
Non-Stocked
New At Mouser

Mfr. Part #
9421LW1

Mouser Part #
996-9421LW1

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 1000A KIT

Datasheet

Non-Stocked

¥46,684.1

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 1000A KIT

9421LW4
Square D
1: ¥60,781
Non-Stocked
New At Mouser

Mfr. Part #
9421LW4

Mouser Part #
996-9421LW4

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 1000A KIT

Datasheet

Non-Stocked

¥60,781

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 100AMP NEMA

9421LW7
Square D
1: ¥40,508.5
Non-Stocked
New At Mouser

Mfr. Part #
9421LW7

Mouser Part #
996-9421LW7

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM 600VAC 100AMP NEMA

Datasheet

Non-Stocked

¥40,508.5

Min.: 1
Mult.: 1

Circuit Breaker Accessories DOOR MOUNTED OP MECH FOR 400A BREAKER

9421LZ400
Square D
1: ¥40,508.5
Non-Stocked
New At Mouser

Mfr. Part #
9421LZ400

Mouser Part #
996-9421LZ400

New At Mouser

Square D

Circuit Breaker Accessories DOOR MOUNTED OP MECH FOR 400A BREAKER

Datasheet

Non-Stocked

¥40,508.5

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM HANDLE

9422A1Y
Square D
1: ¥35,374.3
Non-Stocked
New At Mouser

Mfr. Part #
9422A1Y

Mouser Part #
996-9422A1Y

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM HANDLE

Datasheet

Non-Stocked

¥35,374.3

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM HANDLE NEMA

9422A4
Square D
1: ¥55,032.3
Non-Stocked
New At Mouser

Mfr. Part #
9422A4

Mouser Part #
996-9422A4

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM HANDLE NEMA

Datasheet

Non-Stocked

¥55,032.3

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHNAISM HANDLE NEMA

9422AP9
Square D
1: ¥76,399.4
Non-Stocked
New At Mouser

Mfr. Part #
9422AP9

Mouser Part #
996-9422AP9

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHNAISM HANDLE NEMA

Datasheet

Non-Stocked

¥76,399.4

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM + A1 LA

9422ARR11
Square D
1: ¥209,867.4
Non-Stocked
New At Mouser

Mfr. Part #
9422ARR11

Mouser Part #
996-9422ARR11

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM + A1 LA

Datasheet

Non-Stocked

¥209,867.4

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM CBL MECHANISM+HANDLE

9422CLA31
Square D
1: ¥166,634.8
Non-Stocked
New At Mouser

Mfr. Part #
9422CLA31

Mouser Part #
996-9422CLA31

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM CBL MECHANISM+HANDLE

Datasheet

Non-Stocked

¥166,634.8

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECH+HANDLE

9422CLA51
Square D
1: ¥271,148.3
Non-Stocked
New At Mouser

Mfr. Part #
9422CLA51

Mouser Part #
996-9422CLA51

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECH+HANDLE

Datasheet

Non-Stocked

¥271,148.3

Min.: 1
Mult.: 1

Circuit Breakers CABLE OPERATING MECHANISM NEMA

9422CMP10
Square D
1: ¥211,935.3
Non-Stocked
New At Mouser

Mfr. Part #
9422CMP10

Mouser Part #
996-9422CMP10

New At Mouser

Square D

Circuit Breakers CABLE OPERATING MECHANISM NEMA

Datasheet

Non-Stocked

¥211,935.3

Min.: 1
Mult.: 1

Circuit Breaker Accessories CABLE OPERATING MECHANISM NEMA

9422CMP40
Square D
1: ¥144,131.6
Non-Stocked
New At Mouser

Mfr. Part #
9422CMP40

Mouser Part #
996-9422CMP40

New At Mouser

Square D

Circuit Breaker Accessories CABLE OPERATING MECHANISM NEMA

Datasheet

Non-Stocked

¥144,131.6

Min.: 1
Mult.: 1

Circuit Breakers CABLE OPERATING MECHANISM NEMA

9422CMP50
Square D
1: ¥168,086.6
Non-Stocked
New At Mouser

Mfr. Part #
9422CMP50

Mouser Part #
996-9422CMP50

New At Mouser

Square D

Circuit Breakers CABLE OPERATING MECHANISM NEMA

Datasheet

Non-Stocked

¥168,086.6

Min.: 1
Mult.: 1

Circuit Breaker Accessories CABLE OPERATED CB MECHANISM, 120 IN

9422CSB10
Square D
1: ¥73,152.1
Non-Stocked
New At Mouser

Mfr. Part #
9422CSB10

Mouser Part #
996-9422CSB10

New At Mouser

Square D

Circuit Breaker Accessories CABLE OPERATED CB MECHANISM, 120 IN

Datasheet

Non-Stocked

¥73,152.1

Min.: 1
Mult.: 1

Circuit Breaker Accessories CABLE OPERATED CB MECHANISM, 60 IN

9422CSB50
Square D
1: ¥55,671.7
Non-Stocked
New At Mouser

Mfr. Part #
9422CSB50

Mouser Part #
996-9422CSB50

New At Mouser

Square D

Circuit Breaker Accessories CABLE OPERATED CB MECHANISM, 60 IN

Datasheet

Non-Stocked

¥55,671.7

Min.: 1
Mult.: 1

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECHANISM NEMA

9422CSF10
Square D
1: ¥85,823.9
Non-Stocked
New At Mouser

Mfr. Part #
9422CSF10

Mouser Part #
996-9422CSF10

New At Mouser

Square D

Circuit Breaker Accessories OPERATING MECHANISM CABLE MECHANISM NEMA

Datasheet

Non-Stocked

¥85,823.9

Min.: 1
Mult.: 1

Circuit Breakers OPERATING MECHANISM CABLE MECHANISM NEMA

9422CSF304
Square D
1: ¥73,449.4
Non-Stocked
New At Mouser

Mfr. Part #
9422CSF304

Mouser Part #
996-9422CSF304

New At Mouser

Square D

Circuit Breakers OPERATING MECHANISM CABLE MECHANISM NEMA

Datasheet

Non-Stocked

¥73,449.4

Min.: 1
Mult.: 1