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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.
Varistors 50VAC 10% 14mm StandarD B72214S0500K151 TDK 1: $0.37 8,997In Stock	Mfr. Part No. B72214S0500K151 Mouser Part No 871-B72214S0500K151	TDK	Varistors 50VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	8,997In Stock	Cut Tape $0.37 $0.229 Reel $0.222 $0.211 $0.206	Min.: 1 Mult.: 1 : 3,000
Varistors 460VAC 10% 14mm StandarD B72214S0461K101 TDK 1: $0.71 16,495In Stock	Mfr. Part No. B72214S0461K101 Mouser Part No 871-B72214S461K101	TDK	Varistors 460VAC 10% 14mm StandarD Learn More about TDK epcosvaristors	Datasheet	16,495In Stock	$0.71 $0.45 $0.367 $0.328 View $0.303 $0.283 $0.282 $0.247	Min.: 1 Mult.: 1
Varistors 320VAC 10% 20mm SuperioR MP B72220P3321K503 TDK 1: $1.71 3,148In Stock	Mfr. Part No. B72220P3321K503 Mouser Part No 871-B72220P3321K503	TDK	Varistors 320VAC 10% 20mm SuperioR MP	Datasheet	3,148In Stock	$1.71 $1.14 $1.02 $0.951 View $0.915 $0.874 $0.839 $0.83 $0.82	Min.: 1 Mult.: 1
Varistors 140VAC 10% 20mm AdvanceD B72220S2141K101 TDK 1: $1.20 15,191In Stock	Mfr. Part No. B72220S2141K101 Mouser Part No 871-B72220S2141K101	TDK	Varistors 140VAC 10% 20mm AdvanceD Learn More about TDK epcosvaristors	Datasheet	15,191In Stock	$1.20 $0.784 $0.602 $0.554 View $0.516 $0.515 $0.489	Min.: 1 Mult.: 1
Varistors 0805 30V 80A 200pF B72510T300K62 TDK 1: $0.40 14,410In Stock	Mfr. Part No. B72510T300K62 Mouser Part No 871-B72510T300K62	TDK	Varistors 0805 30V 80A 200pF Learn More about TDK epcosvaristors	Datasheet	14,410In Stock	Cut Tape $0.40 $0.248 $0.198 $0.188 Reel $0.17 View $0.181 $0.165 $0.159 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors 1206 11V 200A 800pF B72520T110K62 TDK 1: $0.52 8,817In Stock	Mfr. Part No. B72520T110K62 Mouser Part No 871-B72520T110K62	TDK	Varistors 1206 11V 200A 800pF Learn More about TDK epcosvaristors	Datasheet	8,817In Stock	Cut Tape $0.52 $0.364 $0.296 $0.284 Reel $0.256 View $0.27 $0.238 $0.224 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Varistors 1210 59VDC 3500pF 1500A B72530U1450K062 TDK 1: $1.25 8,095In Stock	Mfr. Part No. B72530U1450K062 Mouser Part No 871-B72530U1450K062	TDK	Varistors 1210 59VDC 3500pF 1500A Learn More about TDK ctvs varistors	Datasheet	8,095In Stock	Cut Tape $1.25 $0.818 $0.723 $0.678 Reel $0.589 View $0.651 $0.606 $0.58 $0.572 MouseReel Available	Min.: 1 Mult.: 1 : 1,500
Varistors 300VAC 10% 4032mm B72660M0301K072 TDK 1: $0.84 11,322In Stock	Mfr. Part No. B72660M0301K072 Mouser Part No 871-B72660M0301K072	TDK	Varistors 300VAC 10% 4032mm Learn More about TDK epcosvaristors	Datasheet	11,322In Stock	$0.84 $0.542 $0.444 $0.425 View $0.409 $0.388 $0.385	Min.: 1 Mult.: 1
Varistors 0612 50V 30A 56pF B72724D0200A062 TDK 1: $0.51 10,914In Stock	Mfr. Part No. B72724D0200A062 Mouser Part No 871-B72724D200A62	TDK	Varistors 0612 50V 30A 56pF Learn More about TDK epcosvaristors	Datasheet	10,914In Stock	Cut Tape $0.51 $0.322 $0.26 $0.248 Reel $0.247 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers CIRCUIT BREAKER SIZE S00, CLASS 10 3RV20111FA10 Siemens 1: $247.55 12In Stock	Mfr. Part No. 3RV20111FA10 Mouser Part No 982-3RV20111FA10	Siemens	Circuit Breakers CIRCUIT BREAKER SIZE S00, CLASS 10 Learn More about Siemens 3rv2 circuit breakers	Datasheet	12In Stock	$247.55 $219.03 $202.34 $179.33	Min.: 1 Mult.: 1
Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM Eaton Electrical 373D958G22 373D958G22 Eaton Electrical 1: $234.46 1In Stock New Product	Mfr. Part No. 373D958G22 Mouser Part No 504-373D958G22 New Product	Eaton Electrical	Circuit Breaker Accessories VARI-DEPTH H&LE MECH 4 SERIES C CB F FRM	Datasheet	1In Stock	$234.46 $188.50 $172.45 $158.74 View Quote	Min.: 1 Mult.: 1
Fuse Holder BASE MOUNT FUSE HLDR 5 x 20mm FX0360 Bulgin 1: $4.50 1,034In Stock	Mfr. Part No. FX0360 Mouser Part No 422-FX0360	Bulgin	Fuse Holder BASE MOUNT FUSE HLDR 5 x 20mm	Datasheet	1,034In Stock	$4.50 $3.49 $3.03 $2.91 View $2.63 $2.18 $2.11 $2.04 $2.02	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 3403.17.0050 HUBER+SUHNER 1: $436.33 15In Stock	Mfr. Part No. 3403.17.0050 Mouser Part No 455-3403170050	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	15In Stock	$436.33 $436.32	Min.: 1 Mult.: 1
Circuit Breakers Single pole, thermal miniaturised circuit breaker designed for automotive applications. Fits into fuse blocks designed to ISO 8820-3, Type F. Automatic reset (for DC 12 V only) and open circuit (modified reset to SAE) version optional. Open circuitve 1620-3-30A E-T-A 1: $10.30 404In Stock	Mfr. Part No. 1620-3-30A Mouser Part No 457-1620-3-30A	E-T-A	Circuit Breakers Single pole, thermal miniaturised circuit breaker designed for automotive applications. Fits into fuse blocks designed to ISO 8820-3, Type F. Automatic reset (for DC 12 V only) and open circuit (modified reset to SAE) version optional. Open circuitve Learn More about E-T-A e t a 1620 circuit breakers	Datasheet	404In Stock	$10.30 $8.55 $7.89 $6.54 View $6.03 $5.41 $5.13 Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload protection of motors 3120-N521-H7T1-W01D-8A E-T-A 1: $48.43 413In Stock	Mfr. Part No. 3120-N521-H7T1-W01D-8A Mouser Part No 457-521H7T1W01D8	E-T-A	Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload protection of motors Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	413In Stock	$48.43 $40.17 $32.65 $29.66 View $24.77 $23.74 $23.70 Quote	Min.: 1 Mult.: 1
Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot 3120-N321-P7T1-W01D-10A E-T-A 1: $34.20 141In Stock	Mfr. Part No. 3120-N321-P7T1-W01D-10A Mouser Part No 457-N321P7T1W01D10	E-T-A	Circuit Breakers The 3120-N thermal circuit breaker/switch combination unites overcurrent protection and the function of an ON/OFF switch within a single component. The trip element is a thermal bimetal. Type 3120-N is ideally suited for overload prot Learn More about E-T-A e t a 3120 n thermal circuit breakers	Datasheet	141In Stock	$34.20 $28.38 $26.95 $23.79 View $22.05 $17.91 $16.78	Min.: 1 Mult.: 1
Surface Mount Fuses SM 2410 Slow Blow, 500mA 0680L0500-05 Bel Fuse 1: $0.67 23,801In Stock	Mfr. Part No. 0680L0500-05 Mouser Part No 530-0680L0500-05	Bel Fuse	Surface Mount Fuses SM 2410 Slow Blow, 500mA Learn More about Bel Fuse bel 0680l slow blow 2410 smd fuses	Datasheet	23,801In Stock	Cut Tape $0.67 $0.588 $0.511 $0.472 View Reel $0.277 $0.43 $0.395 $0.36 $0.345 $0.277 MouseReel Available	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses Surface mount "Chip fuse" Silver Plated 0402 case size Fast Blow 3A Tape and Reel (10000 pcs.) 0ABA-3000-TN Bel Fuse 1: $0.63 7,008In Stock	Mfr. Part No. 0ABA-3000-TN Mouser Part No 530-0ABA-3000-TN	Bel Fuse	Surface Mount Fuses Surface mount "Chip fuse" Silver Plated 0402 case size Fast Blow 3A Tape and Reel (10000 pcs.) Learn More about Bel Fuse bel 0aba fast blow chip fuses	Datasheet	7,008In Stock	Cut Tape $0.63 $0.495 $0.424 $0.384 View Reel $0.286 $0.368 $0.348 $0.323 $0.321 $0.286 $0.286	Min.: 1 Mult.: 1 : 10,000
Surface Mount Fuses 0603 SMD Fuse. Slow Blow 2.5A 0ABB-2500-TM Bel Fuse 1: $0.86 3,904In Stock	Mfr. Part No. 0ABB-2500-TM Mouser Part No 530-0ABB-2500-TM	Bel Fuse	Surface Mount Fuses 0603 SMD Fuse. Slow Blow 2.5A Learn More about Bel Fuse 0abb time delay fuses	Datasheet	3,904In Stock	Cut Tape $0.86 $0.738 $0.627 $0.579 View Reel $0.372 $0.541 $0.499 $0.463 $0.424 $0.372	Min.: 1 Mult.: 1 : 5,000
Surface Mount Fuses SMD fuse 500VDC 350VAC 3.15A 0ACG-3150-TE Bel Fuse 1: $3.31 1,255In Stock	Mfr. Part No. 0ACG-3150-TE Mouser Part No 530-0ACG-3150-TE	Bel Fuse	Surface Mount Fuses SMD fuse 500VDC 350VAC 3.15A Learn More about Bel Fuse bel 0acg smd fuses	Datasheet	1,255In Stock	Cut Tape $3.31 $2.84 $2.52 $2.29 Reel $1.54 View $1.86 $1.75 $1.50	Min.: 1 Mult.: 1 : 1,000
Cartridge Fuses FUSE, CERAMIC TUBE 2.5A, 1000VAC/VDC 0ADBC2500-BE Bel Fuse 1: $6.62 846In Stock	Mfr. Part No. 0ADBC2500-BE Mouser Part No 530-0ADBC2500-BE	Bel Fuse	Cartridge Fuses FUSE, CERAMIC TUBE 2.5A, 1000VAC/VDC Learn More about Bel Fuse bel 0adbc fuses	Datasheet	846In Stock	$6.62 $5.49 $4.52 $3.71 View $3.55 $3.25 $3.03 $2.90 $2.80	Min.: 1 Mult.: 1
Cartridge Fuses 1/4 x 1-1/4 Inch Ceramic Tube Fuse High I t 20A 0ADGC9200-BE Bel Fuse 1: $4.68 870In Stock	Mfr. Part No. 0ADGC9200-BE Mouser Part No 530-0ADGC9200-BE	Bel Fuse	Cartridge Fuses 1/4 x 1-1/4 Inch Ceramic Tube Fuse High I t 20A Learn More about Bel Fuse 0adgx high in rush fuses	Datasheet	870In Stock	$4.68 $3.95 $3.35 $3.20 View $2.95 $2.77 $2.49 $2.45	Min.: 1 Mult.: 1
Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 10A, 600VAC/500VDC 0ADKP9100-RE Bel Fuse 1: $2.28 2,701In Stock	Mfr. Part No. 0ADKP9100-RE Mouser Part No 530-0ADKP9100-RE	Bel Fuse	Fuses with Leads - Through Hole FUSE, CERAMIC TUBE 10A, 600VAC/500VDC Learn More about Bel Fuse bel circuit protection fuses	Datasheet	2,701In Stock	$2.28 $2.10 $1.75 $1.61 View $1.45 $1.33 $1.11 $1.03 $1.01	Min.: 1 Mult.: 1
Resettable Fuses - PPTC Radial PPTC 3 Ih 16V 0ZRA0300FF1C Bel Fuse 1: $0.43 9,274In Stock	Mfr. Part No. 0ZRA0300FF1C Mouser Part No 530-0ZRA0300FF1C	Bel Fuse	Resettable Fuses - PPTC Radial PPTC 3 Ih 16V Learn More about Bel Fuse 0zra ptc	Datasheet	9,274In Stock	$0.43 $0.376 $0.317 $0.288 View $0.259 $0.239 $0.182 $0.179 $0.164	Min.: 1 Mult.: 1
Cartridge Fuses 3AG 1.6-R Bel Fuse 1: $0.84 4,084In Stock	Mfr. Part No. 3AG 1.6-R Mouser Part No 530-3AG1.6-R	Bel Fuse	Cartridge Fuses	Datasheet	4,084In Stock	$0.84 $0.768 $0.637 $0.588 View $0.528 $0.497 $0.413 $0.389 $0.363	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection