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

Circuit Protection

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

Types of Circuit Protection

List Images

Results: 5,183

Applied Filters:

Brand = Multiple Values

Reset All

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 10A MCB CCHAR 3 PL 480Y/277VAC UL508

3C10UM
Altech
1: ¥12,540.6
32In Stock

Mfr. Part #
3C10UM

Mouser Part #
845-3C10UM

Altech

Circuit Breakers 10A MCB CCHAR 3 PL 480Y/277VAC UL508

Learn More

Datasheet

32In Stock

¥12,540.6

¥11,387.8

¥11,078.9

¥10,877.9

View

Min.: 1
Mult.: 1

Cartridge Fuses Fuse,Cylinder [10]

1C8X32AM
Altech
1: ¥903.6
20In Stock

Mfr. Part #
1C8X32AM

Mouser Part #
845-1C8X32AM

Altech

Cartridge Fuses Fuse,Cylinder [10]

Learn More

Datasheet

20In Stock

¥903.6

¥554.8

¥463.4

¥460.1

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses NH aM 600vac 32A 48x20x36mm(LxWxD)

32NH00AM-6
Altech
1: ¥2,971.5
3In Stock

Mfr. Part #
32NH00AM-6

Mouser Part #
845-32NH00AM-6

Altech

Industrial & Electrical Fuses NH aM 600vac 32A 48x20x36mm(LxWxD)

Learn More

Datasheet

3In Stock

¥2,971.5

¥1,930.1

¥1,885.2

¥1,792.2

View

Min.: 1
Mult.: 1

Circuit Breakers TR11sup.prot.,wingW,bl.

TR11-W-Y-63-B-0-N-12.0A
Altech
1: ¥1,031.5
4In Stock

Mfr. Part #
TR11-W-Y-63-B-0-N-12.0A

Mouser Part #
845-TR11WY63B0N12.0A

Altech

Circuit Breakers TR11sup.prot.,wingW,bl.

Learn More

Datasheet

4In Stock

¥1,031.5

¥993.3

¥828.8

¥807.2

View

Min.: 1
Mult.: 1

Cartridge Fuses Fuse,Cylinder

10C8X32AM
Altech
1: ¥903.6
1In Stock

Mfr. Part #
10C8X32AM

Mouser Part #
845-10C8X32AM

Altech

Cartridge Fuses Fuse,Cylinder

Learn More

Datasheet

1In Stock

¥903.6

¥463.4

¥461.8

¥448.5

View

Min.: 1
Mult.: 1

Cartridge Fuses Fuse,Cylinder [10]

32C22X58AM
Altech
1: ¥2,365.3
24In Stock

Mfr. Part #
32C22X58AM

Mouser Part #
845-32C22X58AM

Altech

Cartridge Fuses Fuse,Cylinder [10]

Learn More

Datasheet

24In Stock

¥2,365.3

¥2,207.5

¥1,690.9

¥1,335.4

View

Min.: 1
Mult.: 1

Fuse Holder Accessories Screw Cap DO2 w/Test Hole [1]

NZ02C
Altech
1: ¥1,084.6
14In Stock

Mfr. Part #
NZ02C

Mouser Part #
845-NZ02C

Altech

Fuse Holder Accessories Screw Cap DO2 w/Test Hole [1]

Datasheet

14In Stock

¥1,084.6

¥968.4

¥807.2

¥802.3

View

Min.: 1
Mult.: 1

Circuit Breakers MOLDED CASE CIRCUIT BREAKER

UTE100N-FTU-25
Altech
1: ¥79,860.9
1In Stock

Mfr. Part #
UTE100N-FTU-25

Mouser Part #
845-UTE100N-FTU-25

Altech

Circuit Breakers MOLDED CASE CIRCUIT BREAKER

1In Stock

¥79,860.9

¥79,859.2

Min.: 1
Mult.: 1

Fuse Holder Accessories Screw Cap,DII,E27

002332003
Altech
1: ¥461.8
30In Stock

Mfr. Part #
002332003

Mouser Part #
845-002332003

Altech

Fuse Holder Accessories Screw Cap,DII,E27

30In Stock

¥461.8

¥385.4

¥377

¥365.4

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Touch Sensor M10

08430211103
Altech
1: ¥101,233
3In Stock

Mfr. Part #
08430211103

Mouser Part #
845-08430211103

Altech

Circuit Breaker Accessories Touch Sensor M10

3In Stock

¥101,233

¥71,469.5

Min.: 1
Mult.: 1

Cartridge Fuses CYL 660vac 40A 14 x 51mm

40C14X51GI
Altech
1: ¥1,398.6
30In Stock

Mfr. Part #
40C14X51GI

Mouser Part #
845-40C14X51GI

Altech

Cartridge Fuses CYL 660vac 40A 14 x 51mm

Learn More

Datasheet

30In Stock

¥1,398.6

¥1,242.4

¥901.9

¥752.4

View

Min.: 1
Mult.: 1

Circuit Breakers Equipment breaker

TR11-C-Y-63-B-0-C-6.5A
Altech
1: ¥1,448.4
6In Stock
30Expected 10/13/2026

Mfr. Part #
TR11-C-Y-63-B-0-C-6.5A

Mouser Part #
845-TR11-CY63B0C6.5A

Altech

Circuit Breakers Equipment breaker

Learn More

Datasheet

6In Stock

30Expected 10/13/2026

¥1,448.4

¥1,430.1

¥1,214.2

¥1,004.9

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Fuse,NH1,gL [3]

200NH1GL
Altech
1: ¥7,467.9
1In Stock

Mfr. Part #
200NH1GL

Mouser Part #
845-200NH1GL

Altech

Industrial & Electrical Fuses Fuse,NH1,gL [3]

Learn More

Datasheet

1In Stock

¥7,467.9

¥4,811.9

¥4,723.9

¥4,542.8

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Fuse, Semi, Square, Size 1

315SB1F1-1
Altech
1: ¥64,410.3
1In Stock

Mfr. Part #
315SB1F1-1

Mouser Part #
845-315SB1F11

Altech

Industrial & Electrical Fuses Fuse, Semi, Square, Size 1

Datasheet

1In Stock

¥64,410.3

¥49,972.8

¥48,270.3

Quote

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Neozed gL 50A SL Blw 36.0 x 11.0mm

50NZ02GL
Altech
1: ¥1,501.5
22In Stock

Mfr. Part #
50NZ02GL

Mouser Part #
845-50NZ02GL

Altech

Industrial & Electrical Fuses Neozed gL 50A SL Blw 36.0 x 11.0mm

Learn More

Datasheet

22In Stock

¥1,501.5

¥1,333.8

¥968.4

¥807.2

View

Min.: 1
Mult.: 1

Cartridge Fuses Fuse,Cylinder

6C14X51AM
Altech
1: ¥1,290.6
2In Stock

Mfr. Part #
6C14X51AM

Mouser Part #
845-6C14X51AM

Altech

Cartridge Fuses Fuse,Cylinder

Learn More

Datasheet

2In Stock

¥1,290.6

¥1,029.8

¥694.3

¥689.3

View

Min.: 1
Mult.: 1

Circuit Breakers TR11 sup. prot.,cent.mou.,black

TR11-C-X-63-B-0-C-2.7A
Altech
1: ¥1,099.6
10In Stock

Mfr. Part #
TR11-C-X-63-B-0-C-2.7A

Mouser Part #
845-TR11CX63B0C27A

Altech

Circuit Breakers TR11 sup. prot.,cent.mou.,black

Learn More

Datasheet

10In Stock

¥1,099.6

¥916.9

¥908.6

¥875.3

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Fuse,NH00C,gG,M,125A,500VAC

004181215
Altech
1: ¥1,968.3
1In Stock

Mfr. Part #
004181215

Mouser Part #
845-004181215

Altech

Industrial & Electrical Fuses Fuse,NH00C,gG,M,125A,500VAC

1In Stock

¥1,968.3

¥1,347.1

¥1,327.1

¥1,270.7

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar,2Phase+1/2pole,18Sqmm,

2P18U3H/14
Altech
1: ¥8,464.5
1In Stock

Mfr. Part #
2P18U3H/14

Mouser Part #
845-2P18U3H14

Altech

Circuit Breaker Accessories Busbar,2Phase+1/2pole,18Sqmm,

Learn More

Datasheet

1In Stock

¥8,464.5

¥6,024.4

¥6,001.2

¥5,604.2

View

Min.: 1
Mult.: 1

Fuse Holder Accessories Screw Cap DO1 w/test hole [1]

NZ01C
Altech
1: ¥883.7
9In Stock

Mfr. Part #
NZ01C

Mouser Part #
845-NZ01C

Altech

Fuse Holder Accessories Screw Cap DO1 w/test hole [1]

Datasheet

9In Stock

¥883.7

¥838.8

¥699.3

¥694.3

View

Min.: 1
Mult.: 1

Circuit Breakers TR11 sup. prot.,cent.mou.,bl.

TR11-C-X-63-B-0-N-2.2A
Altech
1: ¥1,431.8
15In Stock
New At Mouser

Mfr. Part #
TR11-C-X-63-B-0-N-2.2A

Mouser Part #
845-TR11-C-X-63-B-0

New At Mouser

Altech

Circuit Breakers TR11 sup. prot.,cent.mou.,bl.

Datasheet

15In Stock

¥1,431.8

¥1,337.1

¥1,293.9

¥994.9

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Signal switch,NVS5,125-250VAC

004117001
Altech
1: ¥5,785.3
1In Stock

Mfr. Part #
004117001

Mouser Part #
845-004117001

Altech

Industrial & Electrical Fuses Signal switch,NVS5,125-250VAC

Datasheet

1In Stock

¥5,785.3

¥3,785.4

¥3,647.6

¥3,481.5

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Plug-in module,GZ type sockets

M21N
Altech
1: ¥1,210.9
9In Stock

Mfr. Part #
M21N

Mouser Part #
845-M21N

Altech

Circuit Breaker Accessories Plug-in module,GZ type sockets

9In Stock

¥1,210.9

¥1,129.5

¥832.2

¥692.6

View

Min.: 1
Mult.: 1

Circuit Breaker Accessories Busbar Supp w/ fixing screw

NES/5S
Altech
1: ¥631.2
17In Stock

Mfr. Part #
NES/5S

Mouser Part #
845-NES5S

Altech

Circuit Breaker Accessories Busbar Supp w/ fixing screw

Learn More

17In Stock

¥631.2

¥588

¥554.8

¥538.2

View

Min.: 1
Mult.: 1

Industrial & Electrical Fuses Fuse,CH10X38,gG,4A,500VAC

002620003
Altech
1: ¥461.8
3In Stock
2On Order

Mfr. Part #
002620003

Mouser Part #
845-002620003

Altech

Industrial & Electrical Fuses Fuse,CH10X38,gG,4A,500VAC

3In Stock

2On Order

¥461.8

¥385.4

¥377

¥365.4

View

Min.: 1
Mult.: 1

Circuit Protection

Types of Circuit Protection

Customer Service Office

Company

Resources

Support