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: 359,647
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Transtector Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/208 Vac 3-Phase Wye SASD, MOV 100 kA 1In Stock
Min.: 1
Mult.: 1


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 40In Stock
50Expected 17/8/2026
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breaker Accessories FAZ-NA 80A 3-P BUS BAR FOR 2 bkr 28In Stock
30Expected 18/8/2026
Min.: 1
Mult.: 1
TDK NTC (Negative Temperature Coefficient) Thermistors K 164/470 K/J52 5% NTC Thermistor 5,847In Stock
Min.: 1
Mult.: 1
: 1,500

TDK NTC (Negative Temperature Coefficient) Thermistors 0805 4.7K 3% B 3650 55/125/56 9,287In Stock
Min.: 1
Mult.: 1
: 4,000

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors 2 ELECT / 3000v 500In Stock
3,000On Order
Min.: 1
Mult.: 1
: 100

TDK Gas Discharge Tubes - GDTs / Gas Plasma Arrestors T23-A250XF4 1,067In Stock
Min.: 1
Mult.: 1

AIRPAX Circuit Breakers Cir Brkr,HydMag 29In Stock
Min.: 1
Mult.: 1
ABB Circuit Breaker Accessories KIT FCCUXT2 14-1/0AWG125A 3PCUL/CSA 49In Stock
40Expected 1/10/2026
Min.: 1
Mult.: 1
Siemens Circuit Breakers BRKR 3VA52 3P 250A 35KA FTFM 1In Stock
Min.: 1
Mult.: 1
Square D Industrial Surge Protectors SPD T1 EMA 100KA 480V 3P3W 1In Stock
Min.: 1
Mult.: 1

Eaton TPC4000-D-LTR
Eaton Power Outlet Strips PDU EPO 1U IN: L21-30P 24A 3P OUT: 10X5- 1In Stock
Min.: 1
Mult.: 1
Littelfuse Triacs 35 Amp Standard High Temperature Alternistor TRIAC-TO220 Iso 935In Stock
Min.: 1
Mult.: 1

Littelfuse Triacs 12 Amp High Temperature High dvdt TRIAC-TO220 Ins 995In Stock
Min.: 1
Mult.: 1

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors GAS DISCHARGE TUBE 2POLE 90VOLT 974In Stock
Min.: 1
Mult.: 1

Bourns Circuit Protection Kits Design Kit Next-Generation GDT25 67In Stock
Min.: 1
Mult.: 1

Bourns Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 3300 V 1,337In Stock
Min.: 1
Mult.: 1
: 1,000

TDK ESD Protection Diodes / TVS Diodes 5.5VDC 15kV 7Aa.8/20us 0.45pF 1nAa.5.5V 19,970In Stock
Min.: 1
Mult.: 1
: 20,000

Mersen Industrial & Electrical Fuses PDF EJO-1 FI 38KV 40E 1In Stock
Min.: 1
Mult.: 1
Mersen Fuse Holder MIDGET 1-POLE BREAKAWAY FUSEH 8In Stock
Min.: 1
Mult.: 1
Bulgin Fuse Holder DRAWER FUSEHOLDER 491In 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 17In Stock
Min.: 1
Mult.: 1
E-T-A Circuit Breakers Miniaturised single pole press-to-reset cycling trip free thermal circuit breaker designed for automotive fuse block installation. Extends the benefits of circuit breaker performance and convenience to applications which are cost cri 645In 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 431In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breakers Single pole thermal circuit breaker with press-to-reset, tease-free, trip-free, snap action mechanism. Type 2-5700 can be supplied as a push-push switch/circuit breaker (R-type TO CBE to EN 60934 in press-to-reset configuration; S-typ 48In Stock
Min.: 1
Mult.: 1