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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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Types of Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) Filter the results in the table by unit price based on your quantity.	Qty.
NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire TTS-1KC3-BZ CTS Electronic Components 1: 2,07 € 500In Stock New Product	Mfr. Part No. TTS-1KC3-BZ Mouser Part No 774-TTS1KC3BZ New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 1K, +/-0.2C: 0C-70C, B3977,Teflon insulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	500In Stock	2,07 € 1,79 € 1,69 € 1,54 € View 1,53 € 1,29 € 1,24 € 1,19 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, uninsulated wire TTS-50KC6-BG CTS Electronic Components 1: 1,63 € 395In Stock 105Expected 11/12/2026 New Product	Mfr. Part No. TTS-50KC6-BG Mouser Part No 774-TTS50KC6BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 50K, +/-0.2C: 0C-70C, B4260, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	395In Stock 105Expected 11/12/2026	1,63 € 1,43 € 1,37 € 1,26 € View 1,07 € 1,05 €	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire TTS-30KC5-BG CTS Electronic Components 1: 1,93 € 500In Stock New Product	Mfr. Part No. TTS-30KC5-BG Mouser Part No 774-TTS30KC5BG New Product	CTS Electronic Components	NTC (Negative Temperature Coefficient) Thermistors 30K, +/-0.2C: 0C-70C, B3942, uninsulated wire Learn More about CTS Electronic Components cts tt s thermistors	Datasheet	500In Stock	1,93 € 1,66 € 1,58 € 1,44 € View 1,42 € 1,20 € 1,15 € 1,09 €	Min.: 1 Mult.: 1
Circuit Breakers 2P 250AMP HMCP Eaton Electrical HM2P250J5 HM2P250J5 Eaton Electrical 1: 2.055,31 € 1In Stock New Product	Mfr. Part No. HM2P250J5 Mouser Part No 504-HM2P250J5 New Product	Eaton Electrical	Circuit Breakers 2P 250AMP HMCP	Datasheet	1In Stock	2.055,31 €	Min.: 1 Mult.: 1
Surge Protection Accessories L-Shaped Adapter BF-ADAPTER PolyPhaser 1: 25,63 € 18In Stock New Product	Mfr. Part No. BF-ADAPTER Mouser Part No 44-BF-ADAPTER New Product	PolyPhaser	Surge Protection Accessories L-Shaped Adapter Learn More about PolyPhaser surge protector accessories	Datasheet	18In Stock	25,63 € 21,76 € 20,78 € 18,58 €	Min.: 1 Mult.: 1
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 DGXZ+06NMNF-Z PolyPhaser 1: 167,30 € 4In Stock New Product	Mfr. Part No. DGXZ+06NMNF-Z Mouser Part No 44-DGXZ+06NMNF-Z New Product	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 Learn More about PolyPhaser gx surge protectors	Datasheet	4In Stock	167,30 € 158,69 €	Min.: 1 Mult.: 1
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 IS-75F-C1 PolyPhaser 1: 94,75 € 7In Stock 4Expected 11/13/2026 New Product	Mfr. Part No. IS-75F-C1 Mouser Part No 44-IS-75F-C1 New Product	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 Learn More about PolyPhaser 4mhz 900mhz 5mhz 400mhz protectors	Datasheet	7In Stock 4Expected 11/13/2026	94,75 € 89,87 €	Min.: 1 Mult.: 1
Surge Protection Accessories IX Series Pole Mount Kit IX-POLE-KIT PolyPhaser 1: 58,27 € 10In Stock New Product	Mfr. Part No. IX-POLE-KIT Mouser Part No 44-IX-POLE-KIT New Product	PolyPhaser	Surge Protection Accessories IX Series Pole Mount Kit	Datasheet	10In Stock	58,27 € 55,17 €	Min.: 1 Mult.: 1
Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch TK-2 PolyPhaser 1: 42,05 € 10In Stock New Product	Mfr. Part No. TK-2 Mouser Part No 44-TK-2 New Product	PolyPhaser	Surge Protection Accessories Transition Clamp with Shims to Connect Copper to Galvanized Tower Legs for 1 1/4 to 2 1/4 inch Learn More about PolyPhaser surge protector accessories	Datasheet	10In Stock	42,05 € 39,23 € 37,58 €	Min.: 1 Mult.: 1
Connectorised Surge Protectors 7/16 F/M Bulkhead Coaxial RF Surge Protector, 698MHz - 2.7GHz, DC Block, 500W, IP67, .005uJ, 40kA, Filter, Low PIM TSX-DFM PolyPhaser 1: 198,06 € 5In Stock New Product	Mfr. Part No. TSX-DFM Mouser Part No 44-TSX-DFM New Product	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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	5In Stock	198,06 € 189,68 €	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 TSX-NFM PolyPhaser 1: 119,92 € 9In Stock New Product	Mfr. Part No. TSX-NFM Mouser Part No 44-TSX-NFM 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 Learn More about PolyPhaser 650mhz 2 7ghz surge protectors	Datasheet	9In Stock	119,92 € 113,74 €	Min.: 1 Mult.: 1
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 VUF50NHP-MA PolyPhaser 1: 249,61 € 3In Stock New Product	Mfr. Part No. VUF50NHP-MA Mouser Part No 44-VUF50NHP-MA New Product	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	Datasheet	3In Stock	249,61 € 239,05 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX EM12D-TIO-000-DC24V-40A-E E-T-A 1: 140,88 € 6In Stock New Product	Mfr. Part No. EM12D-TIO-000-DC24V-40A-E Mouser Part No 457-EM12DTIO24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, IOLink, ATEX	Datasheet	6In Stock	140,88 € 116,81 € 97,47 € 93,12 € 90,58 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX EM12D-TMB-000-DC24V-40A-E E-T-A 1: 183,31 € 3In Stock New Product	Mfr. Part No. EM12D-TMB-000-DC24V-40A-E Mouser Part No 457-EM12DTMB24V4AE New Product	E-T-A	Circuit Breaker Accessories 508, DM, 40A Supply Module, Modbus, ATEX	Datasheet	3In Stock	183,31 € 153,85 € 147,24 € 133,51 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L EHD1025WD01 Eaton Electrical 1: 342,40 € 1In Stock New Product	Mfr. Part No. EHD1025WD01 Mouser Part No 504-EHD1025WD01 New Product	Eaton Electrical	Circuit Breakers EHD 1P 25A W/O TERM W/KPR1A L&L	Datasheet	1In Stock	342,40 € 255,21 € 235,77 € 216,86 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS EHD1070WD01 Eaton Electrical 1: 680,97 € 1In Stock New Product	Mfr. Part No. EHD1070WD01 Mouser Part No 504-EHD1070WD01 New Product	Eaton Electrical	Circuit Breakers EHD 1P 70A W/O TERMS. W/KPR1A L & L ENDS	Datasheet	1In Stock	680,97 € 567,40 € 542,94 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU PDG21F0060TFFJ Eaton Electrical 1: 342,03 € 1In Stock New Product	Mfr. Part No. PDG21F0060TFFJ Mouser Part No 504-PDG21F0060TFFJ New Product	Eaton Electrical	Circuit Breakers PDG2,1P,60A,25KA/480V,FXFXTMTU	Datasheet	1In Stock	342,03 € 283,34 € 261,18 € View Quote	Min.: 1 Mult.: 1
Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU PDG23M0175TFFL Eaton Electrical 1: 1.145,93 € 1In Stock New Product	Mfr. Part No. PDG23M0175TFFL Mouser Part No 504-PDG23M0175TFFL New Product	Eaton Electrical	Circuit Breakers PDG2,3P,175A,65KA/480V,FXFXTMTU	Datasheet	1In Stock	1.145,93 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 3 POLE C-H UL 400A Eaton Electrical ELLBN3400W ELLBN3400W Eaton Electrical 1: 2.780,39 € 1In Stock New Product	Mfr. Part No. ELLBN3400W Mouser Part No 504-ELLBN3400W New Product	Eaton Electrical	Circuit Breaker Accessories 3 POLE C-H UL 400A		1In Stock	2.780,39 €	Min.: 1 Mult.: 1
Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit Eaton Electrical JT3250FA JT3250FA Eaton Electrical 1: 1.550,68 € 1In Stock New Product	Mfr. Part No. JT3250FA Mouser Part No 504-JT3250FA New Product	Eaton Electrical	Circuit Breaker Accessories 250A 3P Thermal Mag Fixed/Adj Trip Unit		1In Stock	1.550,68 €	Min.: 1 Mult.: 1
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 PE7301-2 Pasternack 1: 257,16 € 3In Stock New Product	Mfr. Part No. PE7301-2 Mouser Part No 28-PE7301-2 New Product	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 Learn More about Pasternack rf coaxial lightning surge protectors	Datasheet	3In Stock	257,16 € 244,51 € 239,84 €	Min.: 1 Mult.: 1
Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit 108-1019A PolyPhaser 1: 166,01 € 4In Stock New Product	Mfr. Part No. 108-1019A Mouser Part No 44-108-1019A New Product	PolyPhaser	Connectorised Surge Protectors Coaxial RF Surge Protector Kit, BGXZ-60NFNM-AS, Hardware Kit	Datasheet	4In Stock	166,01 €	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/F Coaxial RF Surge Protector, 400MHz - 1.2GHz, 300W, IP67, 15 V Max., 500uJ, 20kA, Hybrid, Bracket Down, Hole Mount CGXZ+15NFNF-A PolyPhaser 1: 146,57 € 7In Stock 16On Order New Product	Mfr. Part No. CGXZ+15NFNF-A Mouser Part No 44-CGXZ+15NFNF-A New Product	PolyPhaser	Connectorised Surge Protectors Type N F/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	7In Stock 16On Order On Order Ship Dates Mfr. No: CGXZ+15NFNF-A Stock: 7 Can Dispatch Immediately On Order: 5 Expected 11/5/2026 11 Expected 11/13/2026 Factory Lead Time: 3 Weeks	146,57 € 139,02 €	Min.: 1 Mult.: 1
Surge Protection Accessories Ground Strap Adapter Kit for SX Series DIN Connectors GSA-KIT-D PolyPhaser 1: 69,57 € 5In Stock New Product	Mfr. Part No. GSA-KIT-D Mouser Part No 44-GSA-KIT-D New Product	PolyPhaser	Surge Protection Accessories Ground Strap Adapter Kit for SX Series DIN Connectors Learn More about PolyPhaser surge protector accessories	Datasheet	5In Stock	69,57 € 65,99 €	Min.: 1 Mult.: 1
Connectorised Surge Protectors Type N F/M Coaxial RF Surge Protector, 125MHz - 1GHz, DC Block, 375W, 220uJ, 50kA, Blocking Cap, Bracket Up, Hole Mount IS-50NX-C2-ME PolyPhaser 1: 73,27 € 10In Stock New Product	Mfr. Part No. IS-50NX-C2-ME Mouser Part No 44-IS-50NX-C2-ME New Product	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 Learn More about PolyPhaser 125mhz 1ghz type n surge protectors	Datasheet	10In Stock	73,27 € 69,50 €	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection