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.
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Please view our selection of circuit protection devices below.
Results: 362,309
Select Image Part # Mfr. Description Datasheet Availability Pricing (EUR) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Eaton Electrical Circuit Breakers HFD-DC BREAKER - LINE & LOAD TERMINALS 1In Stock
€696.59
€559.89
€534.92
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDD2,3P, 100A, 100KA/240V, 50C FXFXTMTU 1In Stock
€780.19
€646.32
€595.89
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,35A,25KA/480V,FXFXTMTU 2In Stock
€667.58
€526.21
€485.14
Min.: 1
Mult.: 1
TE Connectivity NTC (Negative Temperature Coefficient) Thermistors ESA PROBE-RTD PT1000 1000mm ENG MODEL 1In Stock
€428.62
€343.89
€340.78
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Bracket Up, Hole Mount 5In Stock
€96.23
€91.27
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B 5In Stock
€160.07
€153.30
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter 5In Stock
€133.24
€126.38
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch 10In Stock
€43.58
€40.67
€38.97
€38.96
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, w/ Bracket 6In Stock
€142.13
€134.81
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down 4In Stock
4Expected 19/02/2027
€200.77
€192.28
Min.: 1
Mult.: 1
E-T-A Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX 19In Stock
€79.24
€65.47
€64.53
€60.85
Min.: 1
Mult.: 1


E-T-A Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX 5In Stock
€96.81
€81.73
€65.47
€64.95
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R 1In Stock
€319.39
€276.76
€252.14
€223.64
Min.: 1
Mult.: 1


Eaton Electrical Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES 4In Stock
7Expected 09/11/2026
€192.76
€159.76
€147.28
€121.67
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories L-Shaped Adapter 18In Stock
€25.63
€21.76
€20.78
€18.58
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
€167.30
€158.69
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
€94.75
€89.87
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories IX Series Pole Mount Kit 10In Stock
€58.27
€55.17
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
€42.05
€39.23
€37.58
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
€198.06
€189.68
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
€119.92
€113.74
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
€249.61
€239.05
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX 6In Stock
€140.88
€116.81
€97.47
€93.12
€90.58
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX 3In Stock
€156.24
€151.92
€135.48
€125.90
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L 1In Stock
€342.40
€255.21
€235.77
€216.86
Min.: 1
Mult.: 1