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: 359,642
Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Eaton Electrical Circuit Breakers PDG1,4P0%N,80A,25KA/480V,FXFXTMTU 2In Stock
Min.: 1
Mult.: 1
Eaton Power Outlet Strips EA BA PDU 1U, C20 INPUT, 3.33 KW MAX, 11 18In Stock
42On Order
Min.: 1
Mult.: 1

CTS Electronic Components NTC Thermistors 30K +/-1% Glass Bead, B3990, 300C 500In Stock
Min.: 1
Mult.: 1

CTS Electronic Components NTC Thermistors 10k, DO-35 glass NTC, B3977 497In Stock
Min.: 1
Mult.: 1

Schurter Industrial & Electrical Fuses APO Rated current: 400A, Rated voltage: 1000VDC, Trigger Type: active, Mounting: Bolt-on A, ConType: AK2-1 19In Stock
Min.: 1
Mult.: 1

Littelfuse Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC 347In Stock
Min.: 1
Mult.: 1
Eaton Electrical JT3250FA
Eaton Electrical Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit 1In Stock
Min.: 1
Mult.: 1
CTS Electronic Components NTC Thermistors 20K, +/-0.2C: 0C-70C, B4260, Teflon insulated wire 386In Stock
114Expected 2026-11-12
Min.: 1
Mult.: 1

Eaton Electronics ESD Protection Diodes / TVS Diodes AUTO TVS DIODE, SMAJE FAMILY, 33Vdc, Uni 2,611In Stock
Min.: 1
Mult.: 1
: 5,000
Carling Technologies Circuit Breakers C Series 120A DC Hydraulic/Magnetic Circuit Breaker, UL489A, Black Handle 9In Stock
Min.: 1
Mult.: 1
Comchip Technology ESD Protection Diodes / TVS Diodes DIODE ESD BI-DIRECTIONAL 5VWM 5A SOD-723 4,352In Stock
Min.: 1
Mult.: 1
: 8,000

Comchip Technology ESD Protection Diodes / TVS Diodes DIODE ESD UNI-DIRECTIONAL 5VWM 5A SOD-723 5,193In Stock
Min.: 1
Mult.: 1
: 8,000

Eaton Electrical LT340032
Eaton Electrical Circuit Breaker Accessories LG 3 Pole 400A LSI Electronic Trip Unit 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers BR 30A/2 Pole Com. Trip 120/240V 22K 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,20A,25KA/480V,FXFXTMTU 2In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2, 50A, MCP, STD CALIBRATION-HMCPS 1In Stock
Min.: 1
Mult.: 1
Vishay / BC Components NTC Thermistors NTC Mini Ni 0.4 ld 10K 1% blk 0.4e/1e A 386In Stock
1,500Expected 2026-09-01
Min.: 1
Mult.: 1

Pasternack Connectorized Surge Protectors 4.3-10 F/F BULKHEAD COAXIAL RF SURGE PROTECTOR 698 1In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers CH 30MA GFI 60A/2 POLE 120/240V 10K 1In Stock
Min.: 1
Mult.: 1
Vishay Semiconductors ESD Protection Diodes / TVS Diodes 300W,550V MIN,UNIDIR,SMA TVS 5,387In Stock
Min.: 1
Mult.: 1
: 1,800

Vishay ESD Protection Diodes / TVS Diodes ESD PROTECTION DIODE DFN1006-2A 9,750In Stock
Min.: 1
Mult.: 1
: 10,000

TDK Varistors G20, Hybrid design, 20 mm, Vrms=300V, GDT Voltage 1000(800-1200)V , 105C 696In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers Type CH Breaker 40A/3 Pole 240V 10K 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers CH GFCI BREAKER, 30A, PIGTAIL, 10KAIC 1In Stock
Min.: 1
Mult.: 1