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: 361,467
Select Image Part # Mfr. Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity. Qty. RoHS
Eaton Electrical Circuit Breakers PDG2,3P,150A,35KA/480V,FXFXTMTU 3In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers 3 POLE 100 AMP QCHW WITH TONGUE CONN 2In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount 9In Stock
17On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors TNC F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, DC Pass, 90W, IP67, 4mJ, 20kA, Gas Discharge Tube 29In Stock
9Expected 2026-06-12
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 6GHz - 10GHz, DC Block, 750W, IP67, .5uJ, 10kA, Filter 6In Stock
Min.: 1
Mult.: 1
Eaton Electrical Circuit Breakers PDG3,3P,250A,35KA/480V,PXR10 LSI 1In Stock
Min.: 1
Mult.: 1
PolyPhaser Surge Protection Accessories Supplemental Hardware and Materials to for Low Inductance Grounding 3In Stock
2Expected 2026-07-03
Min.: 1
Mult.: 1

Eaton Electrical Circuit Breakers HMCP HIGH MAG STYLE W/STEEL COLLARS 2In Stock
Min.: 1
Mult.: 1
Littelfuse ESD Protection Diodes / TVS Diodes TVS 5KW AECQ-101 TR13 RoHS 3,285In Stock
Min.: 1
Mult.: 1
: 3,000

TE Connectivity NTC Thermistors ESAPP-ESA PROBE-RTD PT1000, 2000mm 4In Stock
10On Order
Min.: 1
Mult.: 1

Eaton Electrical ELJBN3250W
Eaton Electrical Circuit Breaker Accessories Earth Leakage access/y 4 C-H FJ 3P 250A 1In Stock
Min.: 1
Mult.: 1
Eaton Electrical PDG33M0600FNNN
Eaton Electrical Circuit Breaker Accessories PDG3, 3P, 600A, 65KA/480V, FRAME ONLY 1In Stock
Min.: 1
Mult.: 1

PolyPhaser Surge Protection Accessories Flange to Bulkhead Type 4.3-10 Adapter Kit 9In Stock
Min.: 1
Mult.: 1


PolyPhaser Surge Protection Accessories Kit Flange to Bulkhead DIN Adapter 24In Stock
Min.: 1
Mult.: 1
PolyPhaser Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 3In Stock
25On Order
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/M Coaxial RF Surge Protector, 40MHz - 400MHz, 100W, IP67, 60 V Max., 2.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount 1In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 24 V Max., 25uJ, 20kA, Hybrid, Bracket Down, Hole Mount 1In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, 700MHz - 2.7GHz, DC Block, 300W, IP67, .5uJ, 18kA, Filter 9In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1.5kW, IP67, 30 V Max., 25mJ, 30kA, Filter, Low PIM -155 dBc 4In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, DC - 2.7GHz, 400W, IP67, 60 V Max., 420uJ, 20kA, Gas Discharge Tube 2In Stock
7Expected 2026-07-08
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors 7/16 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM 3In Stock
Min.: 1
Mult.: 1

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

PolyPhaser Connectorized Surge Protectors 4.3-10 F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 500W, IP67, 80 V Max., 1mJ, 40kA, Filter, Low PIM 3In Stock
Min.: 1
Mult.: 1

PolyPhaser Connectorized Surge Protectors 7/16 F/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount 2In Stock
8Expected 2026-06-12
Min.: 1
Mult.: 1



E-T-A Circuit Breaker Accessories 508, DM, 40A Distribution Module Standard, without Aux, ATEX 6In Stock
Min.: 1
Mult.: 1