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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 Type N F/M Bulkhead Coaxial RF Surge Protector, 10MHz - 1GHz, DC Block, 1.5kW, 3.5mJ, 20kA, Blocking Cap, Hole Mount IS-B50LN-C2-ME PolyPhaser 1: $91.25 7In Stock New Product	Mfr. Part No. IS-B50LN-C2-ME Mouser Part No 44-IS-B50LN-C2-ME New Product	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 Learn More about PolyPhaser is b50 surge protectors	Datasheet	7In Stock	$91.25 $86.55	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount IS-NEMP-C2 PolyPhaser 1: $187.68 5In Stock New Product	Mfr. Part No. IS-NEMP-C2 Mouser Part No 44-IS-NEMP-C2 New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 200W, 250uJ, 50kA, Blocking Cap, Hole Mount Learn More about PolyPhaser 125mhz 1ghz type n surge protectors	Datasheet	5In Stock	$187.68 $178.01	Min.: 1 Mult.: 1
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B IX-2M PolyPhaser 1: $158.41 3In Stock New Product	Mfr. Part No. IX-2M Mouser Part No 44-IX-2M New Product	PolyPhaser	Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair RS-232, UL 497B Learn More about PolyPhaser ix 2m lightning surge protectors	Datasheet	3In Stock	$158.41 $150.25	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter LSXL PolyPhaser 1: $136.01 7In Stock New Product	Mfr. Part No. LSXL Mouser Part No 44-LSXL New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	7In Stock	$136.01 $129.01	Min.: 1 Mult.: 1
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 RGT PolyPhaser 1: $130.85 7In Stock New Product	Mfr. Part No. RGT Mouser Part No 44-RGT New Product	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 Learn More about PolyPhaser dc 7ghz rf coaxial surge protectors	Datasheet	7In Stock	$130.85 $124.12	Min.: 1 Mult.: 1
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 RRF-160-NFF PolyPhaser 1: $372.33 1In Stock New Product	Mfr. Part No. RRF-160-NFF Mouser Part No 44-RRF-160-NFF New Product	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	Datasheet	1In Stock	$372.33 $356.60	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX REX22D-TD1-100-DC24V-10A/16A/20A-E E-T-A 1: $112.59 8In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-10A/16A/20A-E Mouser Part No 457-REX22DTD1101620E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,10-16-20,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	8In Stock	$112.59 $95.05 $76.14 $75.54 View $72.77 Quote	Min.: 1 Mult.: 1
Circuit Breakers GWF 3P 40A CIRCUIT BKR FXD TMNETIC, 25kA GWF3040 Eaton Electrical 1: $956.72 1In Stock New Product	Mfr. Part No. GWF3040 Mouser Part No 504-GWF3040 New Product	Eaton Electrical	Circuit Breakers GWF 3P 40A CIRCUIT BKR FXD TMNETIC, 25kA		1In Stock	$956.72	Min.: 1 Mult.: 1
Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU PDG13M0045VFFJ Eaton Electrical 1: $762.37 1In Stock New Product	Mfr. Part No. PDG13M0045VFFJ Mouser Part No 504-PDG13M0045VFFJ New Product	Eaton Electrical	Circuit Breakers PDG1,3P,45A,65KA/480V,50C FXFXTMTU	Datasheet	1In Stock	$762.37	Min.: 1 Mult.: 1
Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU PDG22M0125TFFL Eaton Electrical 1: $1,058.45 1In Stock New Product	Mfr. Part No. PDG22M0125TFFL Mouser Part No 504-PDG22M0125TFFL New Product	Eaton Electrical	Circuit Breakers PDG2,2P,125A,65KA/480V,FXFXTMTU	Datasheet	1In Stock	$1,058.45	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU PDG23M0060TFFL Eaton Electrical 1: $783.11 1In Stock New Product	Mfr. Part No. PDG23M0060TFFL Mouser Part No 504-PDG23M0060TFFL New Product	Eaton Electrical	Circuit Breakers PDG2,3P,60A,65KA/480V,FXFXTMTU	Datasheet	1In Stock	$783.11	Min.: 1 Mult.: 1
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 IS-B50LN-C0-MA PolyPhaser 1: $111.92 5In Stock New Product	Mfr. Part No. IS-B50LN-C0-MA Mouser Part No 44-IS-B50LN-C0-MA New Product	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 Learn More about PolyPhaser is b50 surge protectors	Datasheet	5In Stock	$111.92 $106.15	Min.: 1 Mult.: 1
Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B IX-2H1DC48 PolyPhaser 1: $186.16 5In Stock New Product	Mfr. Part No. IX-2H1DC48 Mouser Part No 44-IX-2H1DC48 New Product	PolyPhaser	Connectorised Surge Protectors Outdoor Twisted Pair Lightning Surge Protector, 2 Pair 100Base-T Ethernet, 1 Pair 48Vdc, UL 497B Learn More about PolyPhaser ix surge protectors	Datasheet	5In Stock	$186.16 $178.29	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter LSXL-ME PolyPhaser 1: $154.96 5In Stock New Product	Mfr. Part No. LSXL-ME Mouser Part No 44-LSXL-ME New Product	PolyPhaser	Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 1.8GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 18kA, Filter Learn More about PolyPhaser 1 5mhz 6ghz surge protectors	Datasheet	5In Stock	$154.96 $146.98	Min.: 1 Mult.: 1
Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch TK-3 PolyPhaser 1: $50.68 10In Stock New Product	Mfr. Part No. TK-3 Mouser Part No 44-TK-3 New Product	PolyPhaser	Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 2 1/4 to 3 1/4 inch Learn More about PolyPhaser surge protector accessories	Datasheet	10In Stock	$50.68 $47.30 $45.32 $45.31 Quote Quote	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, w/ Bracket TSX-NFM-BF PolyPhaser 1: $165.30 6In Stock New Product	Mfr. Part No. TSX-NFM-BF Mouser Part No 44-TSX-NFM-BF New Product	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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	6In Stock	$165.30 $156.78	Min.: 1 Mult.: 1
Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down VHF50B43-MA-BD PolyPhaser 1: $233.50 4In Stock 4Expected 2027/02/19 New Product	Mfr. Part No. VHF50B43-MA-BD Mouser Part No 44-VHF50B43-MA-BD New Product	PolyPhaser	Connectorised Surge Protectors 4.3-10 M/F Coaxial RF Surge Protector, 100MHz - 520MHz, DC Block, 750W, 20kA, Bracket Down	Datasheet	4In Stock 4Expected 2027/02/19	$233.50 $223.62	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -150 dBc, Bracket Down, Hole Mount VHF50D-MA-PGR PolyPhaser 1: $219.30 4In Stock 4Expected 2026/11/13 New Product	Mfr. Part No. VHF50D-MA-PGR Mouser Part No 44-VHF50D-MA-PGR New Product	PolyPhaser	Connectorised Surge Protectors 7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -150 dBc, Bracket Down, Hole Mount Learn More about PolyPhaser 100mhz 512mhz surge protectors	Datasheet	4In Stock 4Expected 2026/11/13	$219.30 $210.01	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX REX22D-TD1-100-DC24V-10A/12A/15A-E E-T-A 1: $92.16 19In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-10A/12A/15A-E Mouser Part No 457-REX22DTD1101215E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,10-12-15,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	19In Stock	$92.16 $76.14 $75.05 $70.77	Min.: 1 Mult.: 1
Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX REX22D-TD1-100-DC24V-12A/16A/20A-E E-T-A 1: $112.59 5In Stock New Product	Mfr. Part No. REX22D-TD1-100-DC24V-12A/16A/20A-E Mouser Part No 457-REX22DTD1121620E New Product	E-T-A	Circuit Breakers 508,DM,24VDC,CL,12-16-20,ATX Learn More about E-T-A eta rex22d t intelligent circuit protectors	Datasheet	5In Stock	$112.59 $95.05 $76.14 $75.54 View $72.77 Quote	Min.: 1 Mult.: 1
Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R BR24L70RP Eaton Electrical 1: $368.95 1In Stock New Product	Mfr. Part No. BR24L70RP Mouser Part No 504-BR24L70RP New Product	Eaton Electrical	Circuit Breakers 1PH/BR LC 70A MLO 2/4 Cir Al Bus N3R	Datasheet	1In Stock	$368.95 $257.74 $240.57 $232.17	Min.: 1 Mult.: 1
Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES PDGXAC Eaton Electrical 1: $224.18 4In Stock 7Expected 2026/11/10 New Product	Mfr. Part No. PDGXAC Mouser Part No 504-PDGXAC New Product	Eaton Electrical	Circuit Breaker Accessories PD AUX&ALM SW 1NO/1NC PIGTAIL-30 INCHES	Datasheet	4In Stock 7Expected 2026/11/10	$224.18 $185.80 $171.29 $141.50	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount 109-0501W-D PolyPhaser 1: $172.18 6In Stock New Product	Mfr. Part No. 109-0501W-D Mouser Part No 44-109-0501W-D New Product	PolyPhaser	Connectorised Surge Protectors Type N F/F Bulkhead Coaxial RF Surge Protector, 700MHz to 1000MHz, Telemetry, DC Pass, 15V, IP67, 20kA, Hybrid, Flange Mount	Datasheet	6In Stock	$172.18 $163.31	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter AL-LSXM-MA PolyPhaser 1: $73.12 11In Stock 16On Order New Product	Mfr. Part No. AL-LSXM-MA Mouser Part No 44-AL-LSXM-MA New Product	PolyPhaser	Connectorised Surge Protectors Type N M/F Bulkhead Coaxial RF Surge Protector, 2GHz - 6GHz, DC Block, 10W, IP67, .5uJ, 10kA, Filter Learn More about PolyPhaser 2ghz 6ghz surge protectors	Datasheet	11In Stock 16On Order On Order Ship Dates Mfr. No: AL-LSXM-MA Stock: 11 Can Dispatch Immediately On Order: 5 Pending 11 Expected 2026/11/06 Factory Lead Time: 11 Weeks	$73.12 $69.23	Min.: 1 Mult.: 1
Connectorised Surge Protectors HEMP Tested 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1000W, IP67, 100 V Max., 25mJ, 20kA, Filter, Low PIM HT-RO-TSX-DCDFM PolyPhaser 1: $257.16 5In Stock New Product	Mfr. Part No. HT-RO-TSX-DCDFM Mouser Part No 44-HT-RO-TSX-DCDFM New Product	PolyPhaser	Connectorised Surge Protectors HEMP Tested 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, 1000W, IP67, 100 V Max., 25mJ, 20kA, Filter, Low PIM Learn More about PolyPhaser tsx ht hemp tested rf surge protectors	Datasheet	5In Stock	$257.16 $246.29	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection