Circuit Protection

Circuit Protection
Circuit Protection devices and components are available at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many circuit protection manufacturers including Bourns, Eaton, TDK, Littelfuse, Semtech, Vishay, & more.
More...

Please view our selection of circuit protection devices below.
Results: 361,174
Select Image Part # Mfr. Description Datasheet Availability Pricing (GBP) Filter the results in the table by unit price based on your quantity. Qty. RoHS
PolyPhaser Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit 4In Stock
£144.93
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Ground Strap Adapter Kit for SX Series DIN Connectors 5In Stock
£60.73
£57.61
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/M Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 10In Stock
£63.96
£60.67
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors UHF F/M Coaxial RF Surge Protector, 50MHz - 700MHz, DC Block, 375W, 600uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount 4In Stock
£84.01
£79.68
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount 7In Stock
£68.50
£64.97
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount 1In Stock
£140.88
£133.62
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B 3In Stock
£118.91
£112.78
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter 7In Stock
£102.10
£96.84
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 2.4GHz, 50W, IP67, 60 V Max., 3mJ, 18kA, Gas Discharge Tube 7In Stock
£98.22
£93.17
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 160 MHz to 163 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA 1In Stock
£279.49
£267.68
Min.: 1
Mult.: 1


E-T-A Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX 8In Stock
£84.52
£71.35
£57.16
£56.70
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers GWF 3P 40A CIRCUIT BKR FXD TMNETIC, 25kA 1In Stock
£718.16
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU 1In Stock
£572.27
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU 1In Stock
£794.52
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU 1In Stock
£587.83
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories L-Shaped Adapter 18In Stock
£22.37
£19.00
£18.14
£16.22
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
£146.05
£138.54
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 7In Stock
4Expected 13/11/2026
£82.72
£78.46
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories IX Series Pole Mount Kit 10In Stock
£50.87
£48.16
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 10In Stock
£36.71
£34.25
£32.81
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
£172.91
£165.59
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
£104.69
£99.30
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
£217.91
£208.69
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX 6In Stock
£122.99
£101.98
£85.09
£81.29
£79.08
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX 3In Stock
£136.40
£132.63
£118.27
£109.91
Min.: 1
Mult.: 1