Circuit Protection

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.
Results: 362 063
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 Mfr.
Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS
Transtector Industrial Surge Protectors DC Surge Protector SPD I2R Indoor DIN-Rail 48 Vdc, Single-Mode SASD
Datasheet
30In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 1.0 GHz
Datasheet
15In Stock
120On Order
Min.: 1
Mult.: 1

E-T-A Circuit Breakers Single, two and three pole magnetic circuit breakers with trip-free mechanism and push/pull on/off manual actuation. A choice of fast magnetic only or hydraulically delayed switching characteristics (Stype MO or HM CBE to EN 60934) en
Datasheet
23In Stock
Min.: 1
Mult.: 1
KYOCERA AVX Surface Mount Fuses Accu-Guard II Fuse F ast Speed
Datasheet
3 436In Stock
6 000Expected 9/14/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3 000



Vishay / BC Components NTC (Negative Temperature Coefficient) Thermistors 10K 5% UL Recognized Standard Lug Sensor
Datasheet
4 582In Stock
Min.: 1
Mult.: 1

TE Connectivity / Measurement Specialties NTC (Negative Temperature Coefficient) Thermistors Surface Temp Sensor
Datasheet
257In Stock
Min.: 1
Mult.: 1

TDK NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 1206 10K J62 B-35300
Datasheet
15 745In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 4 000

ABB Circuit Breaker Accessories MOE XT5 110 125V AC/DC AUTO-RESET
Datasheet
8In Stock
Min.: 1
Mult.: 1
ABB Circuit Breakers MCB ST200M 2P C 20A UL1077
Datasheet
39In Stock
Min.: 1
Mult.: 1
Siemens Circuit Breakers MCSW 3VA53 3P 400A 65KA
Datasheet
1In Stock
Min.: 1
Mult.: 1


L-Com Circuit Breaker Accessories MPR SURGE SUPPRESSOR 5In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,33V 5%,UNIDIR,SMB TVS
Datasheet
2 823In Stock
Min.: 1
Mult.: 1
: 3 200
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,16V 5%,UNIDIR,SMB TVS
Datasheet
7 339In Stock
Min.: 1
Mult.: 1
: 750

Vishay Semiconductors ESD Protection Diodes / TVS Diodes 600W,24V 5%,UNIDIR,SMB TVS
Datasheet
8 180In Stock
Min.: 1
Mult.: 1
: 750

AIRPAX Circuit Breakers 2In Stock
Min.: 1
Mult.: 1
Schneider Electric Circuit Breakers MotBreak GV4PE Therm/Mag 115A 50kA Elink
Datasheet
1In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, GDT technology up to 1.0 GHz
Datasheet
7In Stock
Min.: 1
Mult.: 1
HUBER+SUHNER Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Fine protectors hybrid technology, box design, bypass voltage 15 V, DC current 3 A
Datasheet
17In Stock
Min.: 1
Mult.: 1

E-T-A 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
Datasheet
512In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A
Datasheet
54In Stock
90Expected 9/25/2026
Min.: 1
Mult.: 1
Siemens Circuit Breakers BRKR 3VA51 3P 40A 25KA FTFM
Datasheet
5In Stock
Min.: 1
Mult.: 1
Schneider Electric Circuit Breakers NSX100H 70kA AC 3P3D 100A 2.2
Datasheet
1In Stock
Min.: 1
Mult.: 1
Square D Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A
Datasheet
1In Stock
Min.: 1
Mult.: 1
Transtector Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/208 Vac 3-Phase Wye SASD, MOV 100 kA
Datasheet


E-T-A Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot
Datasheet
40In Stock
50Expected 8/17/2026
Min.: 1
Mult.: 1