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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Connectorised Surge Protectors UHF F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount IS-50UX-C0 PolyPhaser 1: $84.34 138In Stock New Product	Mfr. Part No. IS-50UX-C0 Mouser Part No 44-IS-50UX-C0 New Product	PolyPhaser	Connectorised Surge Protectors UHF F/F Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	138In Stock	$84.34 $80.00	Min.: 1 Mult.: 1
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 IS-B50LN-C0 PolyPhaser 1: $98.12 72In Stock 32On Order New Product	Mfr. Part No. IS-B50LN-C0 Mouser Part No 44-IS-B50LN-C0 New Product	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 Learn More about PolyPhaser is b50 surge protectors	Datasheet	72In Stock 32On Order On Order Ship Dates Mfr. No: IS-B50LN-C0 Stock: 72 Can Dispatch Immediately On Order: 16 Expected 27/11/2026 16 Expected 16/12/2026 Factory Lead Time: 8 Weeks	$98.12 $93.06	Min.: 1 Mult.: 1
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 48Vdc, UL 497B IX-2DC48 PolyPhaser 1: $182.48 10In Stock New Product	Mfr. Part No. IX-2DC48 Mouser Part No 44-IX-2DC48 New Product	PolyPhaser	Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 48Vdc, UL 497B	Datasheet	10In Stock	$182.48 $173.08	Min.: 1 Mult.: 1
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B IXG-05 PolyPhaser 1: $190.86 37In Stock New Product	Mfr. Part No. IXG-05 Mouser Part No 44-IXG-05 New Product	PolyPhaser	Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 4 Pair Gigabit Ethernet, PoE, UL 497B Learn More about PolyPhaser ixg 05 lightning surge protector	Datasheet	37In Stock	$190.86 $182.79	Min.: 1 Mult.: 1
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 TSX-4310FF-P PolyPhaser 1: $197.17 14In Stock New Product	Mfr. Part No. TSX-4310FF-P Mouser Part No 44-TSX-4310FF-P New Product	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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	14In Stock	$197.17 $188.83	Min.: 1 Mult.: 1
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology 3400.17.0230 HUBER+SUHNER 1: $410.98 7In Stock New Product	Mfr. Part No. 3400.17.0230 Mouser Part No 455-3400170230 New Product	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology Learn More about HUBER+SUHNER huber suhner surge suppression solutions	Datasheet	7In Stock	$410.98 $372.15 $359.70	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount CGXZ+15NMNF-A PolyPhaser 1: $179.82 14In Stock 5Expected 02/11/2026 New Product	Mfr. Part No. CGXZ+15NMNF-A Mouser Part No 44-CGXZ+15NMNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser 400mhz 2 5ghz surge protectors	Datasheet	14In Stock 5Expected 02/11/2026	$179.82 $172.21	Min.: 1 Mult.: 1
Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Up, Hole Mount DGXZ+15TFTF-BN PolyPhaser 1: $194.53 17In Stock 8Expected 17/11/2026 New Product	Mfr. Part No. DGXZ+15TFTF-BN Mouser Part No 44-DGXZ+15TFTF-BN New Product	PolyPhaser	Connectorised Surge Protectors TNC F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Up, Hole Mount Learn More about PolyPhaser gx surge protectors	Datasheet	17In Stock 8Expected 17/11/2026	$194.53 $184.51	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube GT-NFF-AL PolyPhaser 1: $78.46 534In Stock 467On Order New Product	Mfr. Part No. GT-NFF-AL Mouser Part No 44-GT-NFF-AL New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	534In Stock 467On Order On Order Ship Dates Mfr. No: GT-NFF-AL Stock: 534 Can Dispatch Immediately On Order: 152 Pending 100 Expected 13/11/2026 50 Expected 26/11/2026 165 Expected 04/12/2026 Factory Lead Time: 8 Weeks	$78.46 $74.28	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube GT-NFM-AL PolyPhaser 1: $72.22 89In Stock 16Expected 13/11/2026 New Product	Mfr. Part No. GT-NFM-AL Mouser Part No 44-GT-NFM-AL New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, DC - 6GHz, 90W, IP67, 60 V Max., 5mJ, 20kA, Gas Discharge Tube Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	89In Stock 16Expected 13/11/2026	$72.22 $68.37	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 DIN M/F Quarter Wave RF Protector, 555MHz to 4.5GHz, Low PIM QWP-DMDF-ER PolyPhaser 1: $199.46 21In Stock New Product	Mfr. Part No. QWP-DMDF-ER Mouser Part No 44-QWP-DMDF-ER New Product	PolyPhaser	Connectorised Surge Protectors 7/16 DIN M/F Quarter Wave RF Protector, 555MHz to 4.5GHz, Low PIM	Datasheet	21In Stock	$199.46 $191.03	Min.: 1 Mult.: 1
Connectorised Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 217 MHz to 223 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA RRF-220-NFF PolyPhaser 1: $353.34 6In Stock New Product	Mfr. Part No. RRF-220-NFF Mouser Part No 44-RRF-220-NFF New Product	PolyPhaser	Connectorised Surge Protectors Positive Train Control (PTC) Filter, Railroad RF Band Pass with Surge Protector, 217 MHz to 223 MHz, Type N F/F, 100W CW, IP67, 50uJ, 10kA	Datasheet	6In Stock	$353.34 $338.40	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM TSX-NFF-P PolyPhaser 1: $165.26 35In Stock New Product	Mfr. Part No. TSX-NFF-P Mouser Part No 44-TSX-NFF-P New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	35In Stock	$165.26 $156.75	Min.: 1 Mult.: 1
Circuit Breakers 4P 63A 30 MA RCCB TYPE G/A 167109 Eaton Electrical 1: $1,437.99 1In Stock New Product	Mfr. Part No. 167109 Mouser Part No 504-167109 New Product	Eaton Electrical	Circuit Breakers 4P 63A 30 MA RCCB TYPE G/A	Datasheet	1In Stock	$1,437.99	Min.: 1 Mult.: 1
Circuit Breakers PDG1,4P0%N,80A,25KA/480V,FXFXTMTU PDG10F0080TFFJ Eaton Electrical 1: $909.78 2In Stock New Product	Mfr. Part No. PDG10F0080TFFJ Mouser Part No 504-PDG10F0080TFFJ New Product	Eaton Electrical	Circuit Breakers PDG1,4P0%N,80A,25KA/480V,FXFXTMTU	Datasheet	2In Stock	$909.78	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included 103-0324A-A PolyPhaser 1: $110.17 83In Stock New Product	Mfr. Part No. 103-0324A-A Mouser Part No 44-103-0324A-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, DC - 3.0GHz, DC Pass, 60V, 2000W, IP67, 20kA, Gas Tube, Bracket Included	Datasheet	83In Stock	$110.17 $104.49	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter AL-LSXM PolyPhaser 1: $76.68 23In Stock 12Expected 20/11/2026 New Product	Mfr. Part No. AL-LSXM Mouser Part No 44-AL-LSXM New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter Learn More about PolyPhaser 2ghz 6ghz surge protectors	Datasheet	23In Stock 12Expected 20/11/2026	$76.68 $72.59	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount CGXZ+36NFNF-A PolyPhaser 1: $170.43 43In Stock New Product	Mfr. Part No. CGXZ+36NFNF-A Mouser Part No 44-CGXZ+36NFNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 36 V Max., 1.5mJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser 400mhz 2 5ghz surge protectors	Datasheet	43In Stock	$170.43 $161.65	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount DGXZ+06NFNF-A PolyPhaser 1: $216.10 51In Stock 234On Order New Product	Mfr. Part No. DGXZ+06NFNF-A Mouser Part No 44-DGXZ+06NFNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 800MHz - 2.5GHz, 300W, IP67, 6 V Max., 175uJ, 20kA, Hybrid, Bracket Down, Hole Mount Learn More about PolyPhaser gx surge protectors	Datasheet	51In Stock 234On Order On Order Ship Dates Mfr. No: DGXZ+06NFNF-A Stock: 51 Can Dispatch Immediately On Order: 130 Expected 09/11/2026 104 Expected 20/11/2026 Factory Lead Time: 2 Weeks	$216.10 $206.96	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube GT-NFSF-AL PolyPhaser 1: $129.11 30In Stock 9Expected 20/11/2026 New Product	Mfr. Part No. GT-NFSF-AL Mouser Part No 44-GT-NFSF-AL New Product	PolyPhaser	Connectorised Surge Protectors Type N/SMA F/F Bulkhead Coaxial RF Surge Protector, DC - 7GHz, 90W, IP67, 9 V Max., 5mJ, 20kA, Gas Discharge Tube Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	30In Stock 9Expected 20/11/2026	$129.11 $122.46	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount IS-50NX-C0-ME PolyPhaser 1: $110.17 30In Stock New Product	Mfr. Part No. IS-50NX-C0-ME Mouser Part No 44-IS-50NX-C0-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 2kW, 10mJ, 50kA, Blocking Cap, Bracket Up, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	30In Stock	$110.17 $104.49	Min.: 1 Mult.: 1
Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount IS-B50HU-C0 PolyPhaser 1: $139.44 14In Stock New Product	Mfr. Part No. IS-B50HU-C0 Mouser Part No 44-IS-B50HU-C0 New Product	PolyPhaser	Connectorised Surge Protectors UHF F/F Bulkhead Coaxial RF Surge Protector, 1.5MHz - 700MHz, DC Block, 3kW, 20mJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	14In Stock	$139.44 $132.26	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount VHF50HN-MA PolyPhaser 1: $165.26 29In Stock New Product	Mfr. Part No. VHF50HN-MA Mouser Part No 44-VHF50HN-MA New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Bracket Down, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	29In Stock	$165.26 $156.75	Min.: 1 Mult.: 1
Circuit Breakers PDG2,2P,125A,50KA/480V,FXFXTMTU PDG22K0125TFFJ Eaton Electrical 1: $991.37 4In Stock New Product	Mfr. Part No. PDG22K0125TFFJ Mouser Part No 504-PDG22K0125TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,2P,125A,50KA/480V,FXFXTMTU	Datasheet	4In Stock	$991.37	Min.: 1 Mult.: 1
Circuit Breakers PDG3 PXR25 LSI THREE POLE 600A PDG3XPXR30600P2M Eaton Electrical 1: $3,241.74 1In Stock New Product	Mfr. Part No. PDG3XPXR30600P2M Mouser Part No 504-PDG3XPXR30600P2M New Product	Eaton Electrical	Circuit Breakers PDG3 PXR25 LSI THREE POLE 600A	Datasheet	1In Stock	$3,241.74	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection