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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 (USD) Filter the results in the table by unit price based on your quantity.	Qty.
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology 3400.17.0428 HUBER+SUHNER 1: $185.25 36In Stock 50Expected 01/12/2026	Mfr. Part No. 3400.17.0428 Mouser Part No 455-3400170428	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Quarter-wave stub technology Learn More about HUBER+SUHNER huber suhner cable solutions	Datasheet	36In Stock 50Expected 01/12/2026	$185.25 $170.69 $167.09 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 508, 1P, DM, 24VDC, 2CH, ,4A/4A, No Comm CL2 REX12-TA2-107-DC24V-4A/4A-CL2 E-T-A 1: $98.99 32In Stock	Mfr. Part No. REX12-TA2-107-DC24V-4A/4A-CL2 Mouser Part No 457-107DC24V4A/4ACL2	E-T-A	Circuit Breakers 508, 1P, DM, 24VDC, 2CH, ,4A/4A, No Comm CL2	Datasheet	32In Stock	$98.99 $85.90 $73.47 $71.06 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 201 ACC- Busbar 1-pole 90deg 1 Meter X22254001 E-T-A 1: $43.70 71In Stock 1On Order	Mfr. Part No. X22254001 Mouser Part No 457-X22254001	E-T-A	Circuit Breaker Accessories 201 ACC- Busbar 1-pole 90deg 1 Meter		71In Stock 1On Order	$43.70 $37.24 $34.63 $31.14 View $30.32 $29.32	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS array 4 line Bi-dir, 300W (8/20us), Stand-off voltage = 12V SMDA12Ce3/TR7 Microchip Technology 1: $1.69 1,072In Stock	Mfr. Part No. SMDA12Ce3/TR7 Mouser Part No 494-SMDA12CE3/TR7	Microchip Technology	ESD Protection Diodes / TVS Diodes TVS array 4 line Bi-dir, 300W (8/20us), Stand-off voltage = 12V	Datasheet	1,072In Stock	Cut Tape $1.69 Reel $1.42 MouseReel Available	Min.: 1 Mult.: 1 : 500
Power Outlet Strips PDUMH20HV PDUMH20HV Tripp Lite Restricted Availability	Mfr. Part No. PDUMH20HV Mouser Part No 545-PDUMH20HV	Tripp Lite	Power Outlet Strips PDUMH20HV Mouser does not presently sell this product in your region.	Datasheet			Restricted Availability
Circuit Protection Kits Tgc/Mgde-Ms5 12-24V Time Delay 6' 500A 08075160 Littelfuse 1: $467.23 5In Stock	Mfr. Part No. 08075160 Mouser Part No 576-08075160	Littelfuse	Circuit Protection Kits Tgc/Mgde-Ms5 12-24V Time Delay 6' 500A Learn More about Littelfuse relays switches cvp	Datasheet	5In Stock	$467.23 $387.04 $336.07	Min.: 1 Mult.: 1
PTC (Positive Temperature Coefficient) Thermistors PTCCPLDD5D00A019265140Te3 Vishay / BC Components PTCCL05H190HTE PTCCL05H190HTE Vishay / BC Components 1: $1.44 3,003In Stock	Mfr. Part No. PTCCL05H190HTE Mouser Part No 594-PTCCL05H190HTE	Vishay / BC Components	PTC (Positive Temperature Coefficient) Thermistors PTCCPLDD5D00A019265140Te3	Datasheet	3,003In Stock	$1.44 $1.08 $0.861 $0.809 View $0.789 $0.664 $0.607 $0.594	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 1500W 16V Unidirect 1N6276A-E3/54 Vishay Semiconductors 1: $1.59 6,117In Stock	Mfr. Part No. 1N6276A-E3/54 Mouser Part No 625-1N6276A-E3/54	Vishay Semiconductors	ESD Protection Diodes / TVS Diodes 1500W 16V Unidirect Learn More about Vishay Semiconductors vishay semi transzorb transient voltage suppressors	Datasheet	6,117In Stock	Cut Tape $1.59 $0.995 $0.834 $0.652 Reel $0.504 View $0.504 $0.459 $0.383	Min.: 1 Mult.: 1 : 1,400
NTC (Negative Temperature Coefficient) Thermistors 50kOhm 3% Lug Term B25/50:3950K+-3% NTCGP3UH503HCZCCA TDK 1: $6.67 975In Stock	Mfr. Part No. NTCGP3UH503HCZCCA Mouser Part No 810-NTCGP3UH503HCZCC	TDK	NTC (Negative Temperature Coefficient) Thermistors 50kOhm 3% Lug Term B25/50:3950K+-3% Learn More about TDK ntcgp temperature sensors	Datasheet	975In Stock	$6.67 $6.01 $5.77 $5.47 View $5.27 $5.09 $4.72 $4.57	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0603 4K7 J60 B-3650 B57301V2472J60 TDK 1: $0.39 11,747In Stock 8,000Expected 17/11/2026	Mfr. Part No. B57301V2472J60 Mouser Part No 871-B57301V2472J60	TDK	NTC (Negative Temperature Coefficient) Thermistors NTC Thermistor 0603 4K7 J60 B-3650 Learn More about TDK b573xv2 ntc thermistors	Datasheet	11,747In Stock 8,000Expected 17/11/2026	Cut Tape $0.39 $0.335 $0.295 $0.237 Reel $0.162 View $0.196 $0.164 $0.156 $0.138 MouseReel Available	Min.: 1 Mult.: 1 : 4,000
Circuit Breakers XT4H 250 TMF 200-2000 3P F F UL/CSA XT4HU3200AFF000XXX ABB 1: $1,823.97 3In Stock	Mfr. Part No. XT4HU3200AFF000XXX Mouser Part No 894-XT4HU3200AFF000X	ABB	Circuit Breakers XT4H 250 TMF 200-2000 3P F F UL/CSA Learn More about ABB sace tmax xt circuit breakers	Datasheet	3In Stock	$1,823.97	Min.: 1 Mult.: 1
Circuit Breaker Accessories CIRCUIT BREAKER OF WIRE HARNESS S434500 Schneider Electric 1: $543.92 4In Stock New At Mouser	Mfr. Part No. S434500 Mouser Part No 996-S434500 New At Mouser	Schneider Electric	Circuit Breaker Accessories CIRCUIT BREAKER OF WIRE HARNESS	Datasheet	4In Stock	$543.92	Min.: 1 Mult.: 1
Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/240 Vac Split-Phase SASD, MOV 130 kA 1101-424 Transtector 1: $1,741.14 1In Stock New At Mouser	Mfr. Part No. 1101-424 Mouser Part No 21-1101-424 New At Mouser	Transtector	Industrial Surge Protectors AC Surge Protector SPD MCP Panel 120/240 Vac Split-Phase SASD, MOV 130 kA	Datasheet	1In Stock	$1,741.14	Min.: 1 Mult.: 1
Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Fine protectors hybrid technology, box design, bypass voltage 15 V, DC current 3 A 3403.17.0045 HUBER+SUHNER 1: $470.18 14In Stock	Mfr. Part No. 3403.17.0045 Mouser Part No 455-3403.17.0045	HUBER+SUHNER	Connectorised Surge Protectors COAXIAL SURGE PROTECTOR DEVICE, Fine protectors hybrid technology, box design, bypass voltage 15 V, DC current 3 A Learn More about HUBER+SUHNER huber suhner surge suppression solutions	Datasheet	14In Stock	$470.18 View Quote	Min.: 1 Mult.: 1
Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A ESX10-TC-101-DC48V-10A E-T-A 1: $113.81 32In Stock 177On Order	Mfr. Part No. ESX10-TC-101-DC48V-10A Mouser Part No 457-X10TC101DC48V10A	E-T-A	Circuit Breakers 508, 1P, DM, 48VDC, N/O, 10A	Datasheet	32In Stock 177On Order On Order Ship Dates Mfr. No: ESX10-TC-101-DC48V-10A Stock: 32 Can Dispatch Immediately On Order: 85 Expected 14/12/2026 92 Expected 25/12/2026 Factory Lead Time: 12 Weeks	$113.81 $113.05 $89.68 $88.13 View Quote	Min.: 1 Mult.: 1
NTC (Negative Temperature Coefficient) Thermistors NXFT15XV103FEAB035 Murata Electronics 1: $0.52 12,721In Stock 8,000Expected 25/11/2026	Mfr. Part No. NXFT15XV103FEAB035 Mouser Part No 81-NXFT15XV103FEAB35	Murata Electronics	NTC (Negative Temperature Coefficient) Thermistors Learn More about Murata Electronics muratanxftthermistor	Datasheet	12,721In Stock 8,000Expected 25/11/2026	$0.52 $0.394 $0.34 $0.279 View $0.246 $0.235	Min.: 1 Mult.: 1 Max.: 3,000
Circuit Breakers Cir Brkr Hyd Mag 219-3-8303-11 AIRPAX 1: $335.45 4In Stock	Mfr. Part No. 219-3-8303-11 Mouser Part No 874-2193830311	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag Learn More about AIRPAX sensata 209 219 229 249 279 circuit breakers	Datasheet	4In Stock	$335.45 $293.00 $203.57 $178.88 View Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories RHE_MB XT5 F/W M. BASE FOR ROTARY HANDLE KXT5MRHESTFP ABB 1: $123.65 86In Stock 137Expected 25/11/2026	Mfr. Part No. KXT5MRHESTFP Mouser Part No 894-KXT5MRHESTFP	ABB	Circuit Breaker Accessories RHE_MB XT5 F/W M. BASE FOR ROTARY HANDLE	Datasheet	86In Stock 137Expected 25/11/2026	$123.65 $102.53 $86.00 $76.02 View $72.28 Quote	Min.: 1 Mult.: 1
Circuit Breakers XT4H 250 TMF 150-1500 3P F F UL/CSA XT4HU3150AFF000XXX ABB 1: $1,769.56 1In Stock 2Expected 16/11/2026 New At Mouser	Mfr. Part No. XT4HU3150AFF000XXX Mouser Part No 894-XT4HU3150AFF000X New At Mouser	ABB	Circuit Breakers XT4H 250 TMF 150-1500 3P F F UL/CSA Learn More about ABB sace tmax xt circuit breakers	Datasheet	1In Stock 2Expected 16/11/2026	$1,769.56	Min.: 1 Mult.: 1
Circuit Breakers XT5H 400 E.DIP LS/I 400 3P UL XT5HU340AEFF000XXX ABB 1: $3,052.76 2In Stock New At Mouser	Mfr. Part No. XT5HU340AEFF000XXX Mouser Part No 894-XT5HU340AEFF000X New At Mouser	ABB	Circuit Breakers XT5H 400 E.DIP LS/I 400 3P UL Learn More about ABB sace tmax xt circuit breakers	Datasheet	2In Stock	$3,052.76	Min.: 1 Mult.: 1
Circuit Breakers BRKR 3VA51 3P 80A 25KA FTFM AL 3VA51804ED360AA0 Siemens 1: $973.14 2In Stock	Mfr. Part No. 3VA51804ED360AA0 Mouser Part No 982-3VA51804ED360AA0	Siemens	Circuit Breakers BRKR 3VA51 3P 80A 25KA FTFM AL Learn More about Siemens 3va molded case circuit breakers	Datasheet	2In Stock	$973.14	Min.: 1 Mult.: 1
Circuit Breaker Accessories BREAKER 3VA5 125A PL ROT HDL 4X ILUM LOK 3VA91370FK23 Siemens 1: $625.83 5In Stock	Mfr. Part No. 3VA91370FK23 Mouser Part No 982-3VA91370FK23	Siemens	Circuit Breaker Accessories BREAKER 3VA5 125A PL ROT HDL 4X ILUM LOK Learn More about Siemens 3va molded case circuit breakers	Datasheet	5In Stock	$625.83 $515.11 $506.07 View Quote	Min.: 1 Mult.: 1
Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A HGF36090 Square D 1: $1,701.26 1In Stock New At Mouser	Mfr. Part No. HGF36090 Mouser Part No 996-HGF36090 New At Mouser	Square D	Circuit Breakers MOLDED CASE CIRCUIT BREAKER 600V 90A	Datasheet	1In Stock	$1,701.26	Min.: 1 Mult.: 1
Triacs 25 Amp High Temperature High dvdt TRIAC-TO220 Ins QV8025LH4TP Littelfuse 1: $8.16 915In Stock	Mfr. Part No. QV8025LH4TP Mouser Part No 576-QV8025LH4TP	Littelfuse	Triacs 25 Amp High Temperature High dvdt TRIAC-TO220 Ins Learn More about Littelfuse qvxx25xhx alternistor triacs	Datasheet	915In Stock	$8.16 $5.54 $4.06 $3.73	Min.: 1 Mult.: 1
Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1200 V GDT28H-120-BRP Bourns 1: $1.75 1,359In Stock	Mfr. Part No. GDT28H-120-BRP Mouser Part No 652-GDT28H-120-BRP	Bourns	Gas Discharge Tubes - GDTs / Gas Plasma Arrestors NextGen HV GDT 8 mm 1200 V Learn More about Bourns gdt28h gdts	Datasheet	1,359In Stock	Cut Tape $1.75 $1.47 $1.27 $1.17 Reel $0.947 View $1.11 $1.02 $0.853 $0.812 MouseReel Available	Min.: 1 Mult.: 1 : 1,000

Circuit Protection

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Circuit Protection

Types of Circuit Protection