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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: 359,646

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Part #

Cartridge Fuses 250V 2.5A 3.6X10 FA PT PB-FREE

087402.5MXEP
Littelfuse
1: $3.98
1,376In Stock

Mfr. Part No.
087402.5MXEP

Mouser Part No
576-087402.5MXEP

Littelfuse

Cartridge Fuses 250V 2.5A 3.6X10 FA PT PB-FREE

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Datasheet

1,376In Stock

$3.98

$3.63

$3.51

$2.76

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Min.: 1
Mult.: 1

Industrial & Electrical Fuses .1A 600VAC 500VDC Midget

0KLK.100T
Littelfuse
1: $52.12
108In Stock

Mfr. Part No.
0KLK.100T

Mouser Part No
576-0KLK.100T

Littelfuse

Industrial & Electrical Fuses .1A 600VAC 500VDC Midget

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Datasheet

108In Stock

$52.12

$43.23

$35.52

$31.29

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Min.: 1
Mult.: 1

Circuit Breakers F204 63A 30MA 110V PB TEST VOLTAGE

F204A-63/0.03 110V
ABB
1: $1,288.16
4In Stock
New At Mouser

Mfr. Part No.
F204A-63/0.03 110V

Mouser Part No
894-F204A63/0.03110V

New At Mouser

ABB

Circuit Breakers F204 63A 30MA 110V PB TEST VOLTAGE

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Datasheet

4In Stock

$1,288.16

Min.: 1
Mult.: 1

Connectorised Surge Protectors Data Surge Protector SPD CPX Indoor CPX Rack Mount

1101-972
Transtector
1: $349.68
14In Stock
New At Mouser

Mfr. Part No.
1101-972

Mouser Part No
21-1101-972

New At Mouser

Transtector

Connectorised Surge Protectors Data Surge Protector SPD CPX Indoor CPX Rack Mount

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Datasheet

14In Stock

$349.68

$334.89

Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology, NEMP tested

3400.17.0385
HUBER+SUHNER
1: $659.33
29In Stock

Mfr. Part No.
3400.17.0385

Mouser Part No
455-3400170385

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology, NEMP tested

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Datasheet

29In Stock

$659.33

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Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

3406.17.0027
HUBER+SUHNER
1: $234.68
10In Stock

Mfr. Part No.
3406.17.0027

Mouser Part No
455-3406170027

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Slim Line GDT technology

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Datasheet

10In Stock

$234.68

$199.50

$198.32

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Min.: 1
Mult.: 1

Circuit Breakers Single pole thermal-magnetic circuit breakers with tease-free, trip-free, press-to-reset, snap action mechanism (R-type TM CBE to EN 60934; M-type with manual release (-H). Available with fast acting and standard magnetic tripping cha

3400-K20-H-5A
E-T-A
1: $112.47
69In Stock

Mfr. Part No.
3400-K20-H-5A

Mouser Part No
457-3400K20H5A

E-T-A

Datasheet

69In Stock

$112.47

$96.45

$90.59

$80.77

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Min.: 1
Mult.: 1

Power Outlet Strips 208V 30A;L6-30 PLUG 16 C13 AC Receptacle

PDUMH30HVNET
Tripp Lite
Restricted Availability

Mfr. Part No.
PDUMH30HVNET

Mouser Part No
545-PDUMH30HVNET

Tripp Lite

Power Outlet Strips 208V 30A;L6-30 PLUG 16 C13 AC Receptacle

Datasheet

Restricted Availability

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 70kA max, 230V Single Phase, 2P

DS72US-230S
Citel
1: $351.97
16In Stock

Mfr. Part No.
DS72US-230S

Mouser Part No
703-DS72US-230S

Citel

Industrial Surge Protectors Din Rail AC Power Surge Suppressor, 70kA max, 230V Single Phase, 2P

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Datasheet

16In Stock

$351.97

$294.49

$268.84

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes PESD5V0L2BT-Q/SOT23/TO-236AB

PESD5V0L2BT-QR
Nexperia
1: $1.25
15,316In Stock

Mfr. Part No.
PESD5V0L2BT-QR

Mouser Part No
771-PESD5V0L2BT-QR

Nexperia

ESD Protection Diodes / TVS Diodes PESD5V0L2BT-Q/SOT23/TO-236AB

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Datasheet

15,316In Stock

Cut Tape

$1.25

$0.868

$0.549

$0.34

Reel

$0.219

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MouseReel Available

Min.: 1
Mult.: 1

: 3,000

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A91H75XSE

B88069X3443S102
TDK
1: $10.53
948In Stock
1,800Expected 19/11/2026

Mfr. Part No.
B88069X3443S102

Mouser Part No
871-B88069X3443S102

TDK

Gas Discharge Tubes - GDTs / Gas Plasma Arrestors A91H75XSE

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Datasheet

948In Stock

1,800Expected 19/11/2026

$10.53

$9.36

$8.94

$6.87

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Min.: 1
Mult.: 1

Industrial Surge Protectors OVR SPD 3P+N 15KA 175V P

OVRT23N15150PU
ABB
1: $721.30
3In Stock
7Expected 1/9/2026
New At Mouser

Mfr. Part No.
OVRT23N15150PU

Mouser Part No
894-OVRT23N15150PU

New At Mouser

ABB

Industrial Surge Protectors OVR SPD 3P+N 15KA 175V P

Datasheet

3In Stock

7Expected 1/9/2026

$721.30

$709.34

Min.: 1
Mult.: 1

Circuit Breakers XT4H 250 TMF 250-2500 3P F F UL/CSA

XT4HU3250AFF000XXX
ABB
1: $3,440.22
2In Stock
New At Mouser

Mfr. Part No.
XT4HU3250AFF000XXX

Mouser Part No
894-XT4HU3250AFF000X

New At Mouser

ABB

Circuit Breakers XT4H 250 TMF 250-2500 3P F F UL/CSA

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Datasheet

2In Stock

$3,440.22

Min.: 1
Mult.: 1

Circuit Breaker Accessories BREAKER MC FLANGE MAX-FLEX HDL

FHOHS
Siemens
1: $1,289.02
2In Stock

Mfr. Part No.
FHOHS

Mouser Part No
982-FHOHS

Siemens

Circuit Breaker Accessories BREAKER MC FLANGE MAX-FLEX HDL

Datasheet

2In Stock

$1,289.02

Min.: 1
Mult.: 1

Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/240 Vac Split-Phase SASD, MOV 130 kA

1101-424
Transtector
1: $2,367.95
1In Stock
New At Mouser

Mfr. Part No.
1101-424

Mouser Part No
21-1101-424

New At Mouser

Transtector

Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/240 Vac Split-Phase SASD, MOV 130 kA

Datasheet

1In Stock

$2,367.95

Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 1.0 GHz

3401.26.A
HUBER+SUHNER
1: $444.16
7In Stock

Mfr. Part No.
3401.26.A

Mouser Part No
455-340126A

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 1.0 GHz

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Datasheet

7In Stock

$444.16

$412.98

$402.30

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Min.: 1
Mult.: 1

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Fine protectors hybrid technology, box design, bypass voltage 15 V, DC current 3 A

3403.17.0045
HUBER+SUHNER
1: $624.74
17In Stock

Mfr. Part No.
3403.17.0045

Mouser Part No
455-3403.17.0045

HUBER+SUHNER

Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Fine protectors hybrid technology, box design, bypass voltage 15 V, DC current 3 A

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Datasheet

17In Stock

$624.74

$580.88

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Min.: 1
Mult.: 1

Circuit Breakers Single pole, thermal miniaturised circuit breaker designed for automotive applications. Fits into fuse blocks designed to ISO 8820-3, Type F. Automatic reset (for DC 12 V only) and open circuit (modified reset to SAE) version optional. Open circuitve

1620-3-15A
E-T-A
1: $14.62
512In Stock

Mfr. Part No.
1620-3-15A

Mouser Part No
457-1620-3-15A

E-T-A

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Datasheet

512In Stock

$14.62

$13.64

$13.22

$13.12

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Min.: 1
Mult.: 1

Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A

ESX10-TC-101-DC48V-10A
E-T-A
1: $154.78
54In Stock
90Expected 25/9/2026

Mfr. Part No.
ESX10-TC-101-DC48V-10A

Mouser Part No
457-X10TC101DC48V10A

E-T-A

Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A

Datasheet

54In Stock

90Expected 25/9/2026

$154.78

$153.75

$121.96

$119.86

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Min.: 1
Mult.: 1

Circuit Breakers BRKR 3VA51 3P 40A 25KA FTFM

3VA51404ED310AA0
Siemens
1: $939.99
5In Stock

Mfr. Part No.
3VA51404ED310AA0

Mouser Part No
982-3VA51404ED310AA0

Siemens

Circuit Breakers BRKR 3VA51 3P 40A 25KA FTFM

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Datasheet

5In Stock

$939.99

$893.56

$873.66

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Min.: 1
Mult.: 1

Circuit Breakers NSX100H 70kA AC 3P3D 100A 2.2

C10H32D100
Schneider Electric
1: $3,005.89
1In Stock
New At Mouser

Mfr. Part No.
C10H32D100

Mouser Part No
996-C10H32D100

New At Mouser

Schneider Electric

Circuit Breakers NSX100H 70kA AC 3P3D 100A 2.2

Datasheet

1In Stock

$3,005.89

Min.: 1
Mult.: 1

Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A

HGF36090
Square D
1: $2,315.66
1In Stock
New At Mouser

Mfr. Part No.
HGF36090

Mouser Part No
996-HGF36090

New At Mouser

Square D

Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A

Datasheet

1In Stock

$2,315.66

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes AK6 - CA 270V

AK6-270C-Y-12
Littelfuse
1: $83.53
12In Stock

Mfr. Part No.
AK6-270C-Y-12

Mouser Part No
576-AK6-270C-Y-12

Littelfuse

ESD Protection Diodes / TVS Diodes AK6 - CA 270V

Datasheet

12In Stock

$83.53

$77.49

$74.79

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Min.: 1
Mult.: 1

Power Outlet Strips Rack PDU, Metered, 1U, 20A, 120V, (8) 5-20

AP7801B
APC by Schneider Electric
Restricted Availability

Mfr. Part No.
AP7801B

Mouser Part No
679-AP7801B

APC by Schneider Electric

Power Outlet Strips Rack PDU, Metered, 1U, 20A, 120V, (8) 5-20

Datasheet

Restricted Availability

ESD Protection Diodes / TVS Diodes 1.5KW,18V 5%,UNIDIR,SMC TVS

1.5SMC18AHE3_A/I
Vishay Semiconductors
1: $1.63
1,770In Stock

Mfr. Part No.
1.5SMC18AHE3_A/I

Mouser Part No
78-1.5SMC18AHE3_A/I

Vishay Semiconductors

ESD Protection Diodes / TVS Diodes 1.5KW,18V 5%,UNIDIR,SMC TVS

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Datasheet

1,770In Stock

Cut Tape

$1.63

$1.02

$0.669

$0.518

Reel

$0.389

View

Min.: 1
Mult.: 1

: 3,500

Circuit Protection

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