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: 370,853
Select Image Part # Mfr. Description Datasheet Availability Pricing (USD) Filter the results in the table by unit price based on your quantity. Qty. RoHS


Eaton Electrical Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES 4In Stock
7Expected 10/11/2026
$224.14
$185.77
$171.25
$141.48
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories L-Shaped Adapter 18In Stock
$29.80
$25.30
$24.16
$21.61
$21.60
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
$194.54
$184.52
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
$110.18
$104.50
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories IX Series Pole Mount Kit 10In Stock
$67.76
$64.15
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
$48.89
$45.62
$43.70
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
$230.30
$220.56
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
$139.44
$132.25
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
$290.24
$277.97
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX 6In Stock
$163.81
$135.83
$113.34
$108.28
$105.33
Min.: 1
Mult.: 1


E-T-A Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX 3In Stock
$213.15
$178.89
$171.21
$155.24
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L 1In Stock
$398.14
$296.76
$274.15
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS 1In Stock
$791.83
$659.77
$631.33
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU 1In Stock
$397.71
$329.46
$303.70
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU 1In Stock
$1,332.48
Min.: 1
Mult.: 1
StarTech Power Outlet Strips 8 Outlet 1U Rackmount Metered PDU with MOV Surge Protection 3In Stock
$153.15
$150.01
$149.99
$149.98
Min.: 1
Mult.: 1
Pasternack Connectorised Surge Protectors Type N F/F In/Out Coax RF Surge Protector, DC - 3GHz and 1GHz - 2GHz, DC Pass, 2kW, None, 150 V Max., 5kA, Gas Discharge Tube 3In Stock
$299.02
$284.31
$278.88
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit 4In Stock
$192.44
$184.30
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Ground Strap Adapter Kit for SX Series DIN Connectors 5In Stock
$80.90
$76.73
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
$85.20
$80.81
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
$111.89
$106.13
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
$91.23
$86.53
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
9Expected 17/11/2026
$187.65
$177.98
Min.: 1
Mult.: 1
PolyPhaser Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B 3In Stock
$158.38
$150.22
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
$135.99
$128.99
Min.: 1
Mult.: 1