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Circuit Protection

Circuit Protection devices and components are available at Mouser Electronics from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Analog Devices, Bourns, Eaton, Phoenix Contact, TDK EPCOS, Littelfuse, Vishay, & more.
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Please view our selection of circuit protection devices below.

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Types of Circuit Protection

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Results: 362,093

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Part #

Industrial & Electrical Fuses APO Rated current: 400A, Rated voltage: 1000VDC, Trigger Type: active, Mounting: Bolt-on A, ConType: AK2-1

3-158-119
Schurter
1: $93.42
26In Stock
New Product

Mfr. Part #
3-158-119

Mouser Part #
693-3-158-119

New Product

Schurter

Industrial & Electrical Fuses APO Rated current: 400A, Rated voltage: 1000VDC, Trigger Type: active, Mounting: Bolt-on A, ConType: AK2-1

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Datasheet

26In Stock

$93.42

$77.49

$71.48

$59.14

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Min.: 1
Mult.: 1

Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC

3298080.ZXM10
Littelfuse
1: $12.08
305In Stock
New Product

Mfr. Part #
3298080.ZXM10

Mouser Part #
576-3298080.ZXM10

New Product

Littelfuse

Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC

Datasheet

305In Stock

$12.08

$11.66

$10.33

$8.33

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses 600V 50A RoHS

0JTD050.TXR
Littelfuse
1: $62.52
58In Stock
New Product

Mfr. Part #
0JTD050.TXR

Mouser Part #
576-0JTD050.TXR

New Product

Littelfuse

Industrial & Electrical Fuses 600V 50A RoHS

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Datasheet

58In Stock

$62.52

$53.36

$49.36

$43.47

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Min.: 1
Mult.: 1

Fuse Holder FUSE BLOCK SD ATO 4-WAY W/LED

880021
Littelfuse
1: $26.97
266In Stock
New Product

Mfr. Part #
880021

Mouser Part #
691-880021

New Product

Littelfuse

Fuse Holder FUSE BLOCK SD ATO 4-WAY W/LED

Datasheet

266In Stock

$26.97

$23.28

$20.39

$16.21

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Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

CPDE5V0-HF
Comchip Technology
1: $0.36
4,401In Stock
New Product

Mfr. Part #
CPDE5V0-HF

Mouser Part #
750-CPDE5V0-HF

New Product

Comchip Technology

ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723

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Datasheet

4,401In Stock

Cut Tape

$0.36

$0.254

$0.161

$0.099

Reel

$0.049

View

Min.: 1
Mult.: 1

: 8,000

ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723

CPDE5V0U-HF
Comchip Technology
1: $0.36
5,283In Stock
New Product

Mfr. Part #
CPDE5V0U-HF

Mouser Part #
750-CPDE5V0U-HF

New Product

Comchip Technology

ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723

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Datasheet

5,283In Stock

Cut Tape

$0.36

$0.254

$0.161

$0.099

Reel

$0.049

View

Min.: 1
Mult.: 1

: 8,000

ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni

SMAJE33AH
Eaton Electronics
1: $0.43
2,611In Stock
New Product

Mfr. Part #
SMAJE33AH

Mouser Part #
504-MAJE33AH

New Product

Eaton Electronics

ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni

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Datasheet

2,611In Stock

Cut Tape

$0.43

$0.277

$0.164

$0.124

Reel

$0.084

View

Min.: 1
Mult.: 1

: 5,000

Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle

CA1-P0-D6-812-321-MT
Carling Technologies
1: $65.74
9In Stock
New Product

Mfr. Part #
CA1-P0-D6-812-321-MT

Mouser Part #
691-CA1-P0D6812321MT

New Product

Carling Technologies

Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle

Datasheet

9In Stock

$65.74

$54.54

$50.31

$41.64

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Min.: 1
Mult.: 1

Circuit Breaker Accessories PDG3, 3P, 600A, 65KA/480V, FRAME ONLY

PDG33M0600FNNN
Eaton Electrical
1: $3,194.12
1In Stock
New Product

Mfr. Part #
PDG33M0600FNNN

Mouser Part #
504-PDG33M0600FNNN

New Product

Eaton Electrical

Circuit Breaker Accessories PDG3, 3P, 600A, 65KA/480V, FRAME ONLY

Datasheet

1In Stock

$3,194.12

Min.: 1
Mult.: 1

Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit

LT340032
Eaton Electrical
1: $3,884.77
1In Stock
New Product

Mfr. Part #
LT340032

Mouser Part #
504-LT340032

New Product

Eaton Electrical

Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit

1In Stock

$3,884.77

Min.: 1
Mult.: 1

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

JT3250FA
Eaton Electrical
1: $1,803.12
1In Stock
New Product

Mfr. Part #
JT3250FA

Mouser Part #
504-JT3250FA

New Product

Eaton Electrical

Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit

1In Stock

$1,803.12

Min.: 1
Mult.: 1

Circuit Breakers FDB 3P 20A TRIP, 600V CLASS, LINE & LOAD

FDB3020L
Eaton Electrical
1: $1,282.33
1In Stock
New Product

Mfr. Part #
FDB3020L

Mouser Part #
504-FDB3020L

New Product

Eaton Electrical

Circuit Breakers FDB 3P 20A TRIP, 600V CLASS, LINE & LOAD

Datasheet

1In Stock

$1,282.33

Min.: 1
Mult.: 1

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

NTCLE213E3103FHT1A
Vishay / BC Components
1: $1.73
1,240In Stock
1,500Expected 8/17/2026
New Product

Mfr. Part #
NTCLE213E3103FHT1A

Mouser Part #
594-NTCLE213E313FHT1

New Product

Vishay / BC Components

NTC Thermistors NTC Mini Ni 0.4 ld 10K 1 % Tp 0.4e/1e A

Datasheet

1,240In Stock

1,500Expected 8/17/2026

$1.73

$1.30

$1.04

$0.981

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Min.: 1
Mult.: 1

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

CFB1-150
Bourns
1: $71.91
27In Stock
New Product

Mfr. Part #
CFB1-150

Mouser Part #
652-CFB1-150

New Product

Bourns

Fuse Holder CFB1 FUSE BLOCK 150A FUSE

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Datasheet

27In Stock

$71.91

$60.80

$57.32

$44.49

$44.12

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A

VESD29D1-HD1HG3-08
Vishay
1: $0.51
9,750In Stock
New Product

Mfr. Part #
VESD29D1-HD1HG3-08

Mouser Part #
78-VESD29D1-HD1H3-08

New Product

Vishay

ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A

9,750In Stock

Cut Tape

$0.51

$0.361

$0.176

$0.147

Reel

$0.068

View

Min.: 1
Mult.: 1

: 10,000

NTC Thermistors

NCU15XW153E60RC
Murata Electronics
1: $0.13
9,495In Stock
New Product

Mfr. Part #
NCU15XW153E60RC

Mouser Part #
81-NCU15XW153E60RC

New Product

Murata Electronics

NTC Thermistors

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Datasheet

9,495In Stock

$0.13

$0.112

$0.099

$0.081

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XW222J60RC
Murata Electronics
1: $0.13
9,990In Stock
New Product

Mfr. Part #
NCU15XW222J60RC

Mouser Part #
81-NCU15XW222J60RC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,990In Stock

$0.13

$0.112

$0.099

$0.081

View

Min.: 1
Mult.: 1

NTC Thermistors

NCU15XW223J6SRC
Murata Electronics
1: $0.11
9,520In Stock
New Product

Mfr. Part #
NCU15XW223J6SRC

Mouser Part #
81-NCU15XW223J6SRC

New Product

Murata Electronics

NTC Thermistors

Learn More

Datasheet

9,520In Stock

$0.11

$0.086

$0.076

$0.065

View

Min.: 1
Mult.: 1

Circuit Breakers BAB3100H BKR A

BAB3100H
Eaton Electrical
1: $969.90
1In Stock
New Product

Mfr. Part #
BAB3100H

Mouser Part #
504-BAB3100H

New Product

Eaton Electrical

Circuit Breakers BAB3100H BKR A

Datasheet

1In Stock

$969.90

$738.68

$719.44

View

Min.: 1
Mult.: 1

Circuit Breakers Type BR Breaker 10A/2 Pole 120/240V 10K

BR210
Eaton Electrical
1: $162.05
5In Stock
New Product

Mfr. Part #
BR210

Mouser Part #
504-BR210

New Product

Eaton Electrical

Circuit Breakers Type BR Breaker 10A/2 Pole 120/240V 10K

Datasheet

5In Stock

$162.05

$134.37

$125.21

$103.12

$95.75

Min.: 1
Mult.: 1

Circuit Breakers CL 30A/1Pole 120/240V 10K

CL130
Eaton Electrical
1: $80.63
5In Stock
New Product

Mfr. Part #
CL130

Mouser Part #
504-CL130

New Product

Eaton Electrical

Circuit Breakers CL 30A/1Pole 120/240V 10K

Datasheet

5In Stock

$80.63

$66.88

$62.20

$51.84

View

Min.: 1
Mult.: 1

Circuit Breakers CL bkr 40A/1Pole 120/240V 10K

CL140
Eaton Electrical
1: $80.63
5In Stock
New Product

Mfr. Part #
CL140

Mouser Part #
504-CL140

New Product

Eaton Electrical

Circuit Breakers CL bkr 40A/1Pole 120/240V 10K

Datasheet

5In Stock

$80.63

$66.88

$54.86

$51.40

View

Min.: 1
Mult.: 1

Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU

PDG13M0045VFFJ
Eaton Electrical
1: $762.23
1In Stock
New Product

Mfr. Part #
PDG13M0045VFFJ

Mouser Part #
504-PDG13M0045VFFJ

New Product

Eaton Electrical

Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU

Datasheet

1In Stock

$762.23

Min.: 1
Mult.: 1

Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU

PDG22M0125TFFL
Eaton Electrical
1: $1,058.26
1In Stock
New Product

Mfr. Part #
PDG22M0125TFFL

Mouser Part #
504-PDG22M0125TFFL

New Product

Eaton Electrical

Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU

Datasheet

1In Stock

$1,058.26

Min.: 1
Mult.: 1

Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU

PDG23M0060TFFL
Eaton Electrical
1: $881.46
1In Stock
New Product

Mfr. Part #
PDG23M0060TFFL

Mouser Part #
504-PDG23M0060TFFL

New Product

Eaton Electrical

Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU

Datasheet

1In Stock

$881.46

Min.: 1
Mult.: 1

Circuit Protection

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