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: 362,353
Select Image Part # Mfr. Description Datasheet Availability Pricing (SGD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
TDK Varistors MLV, 1210, 25V 4,000In Stock
Min.: 1
Mult.: 1
: 2,000



PolyPhaser Surge Protection Accessories L-Shaped Adapter 20In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 400MHz - 2.5GHz, 600W, IP67, 24 V Max., 1mJ, 40kA, Hybrid, Bracket Down, Hole Mount 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 650MHz - 2.7GHz, 400W, IP67, 30 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 7In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Up, Hole Mount 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.2GHz - 1.6GHz, 10W, IP67, 6 V Max., 175uJ, 15kA, Avalanche Diode 2In Stock
9Expected 17/7/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 75 Ohm Type F F/F Coaxial RF Surge Protector, 4MHz - 900MHz, DC Block, 100W, 50kA, Blocking Cap, Bracket Up, Hole Mount 5In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount 16In Stock
26Expected 17/7/2026
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories IX Series Pole Mount Kit 9In Stock
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch 9In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM 6In Stock
4Expected 17/7/2026
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM 5In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount 4In Stock
337On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 0.5MHz - 1GHz, DC Block, 750W, IP67, 15mJ, 20kA, Filter, Bracket Down, Hole Mount 3In Stock
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX 6In Stock
Min.: 1
Mult.: 1



E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX 3In Stock
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,200A,50KA/480V,FXFXTMTU 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU 1In Stock
Min.: 1
Mult.: 1
Phoenix Contact Industrial Surge Protectors VAL-SPP-T2-335-1+0-UT-R 7In Stock
Min.: 1
Mult.: 1

Phoenix Contact Circuit Breakers PTCB TM1 3A F2 NO P 11In Stock
Min.: 1
Mult.: 1