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Circuit Protection

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.
Fuse Holder BUSS FUSEBLOCK Eaton Electronics 4401 4401 Eaton Electronics 1: ¥4,556.1 Non-Stocked	Mfr. Part # 4401 Mouser Part # 504-4401BS	Eaton Electronics	Fuse Holder BUSS FUSEBLOCK		Non-Stocked	¥4,556.1 ¥3,931.6 ¥3,604.4 ¥3,112.7 View ¥2,664.2 ¥2,458.3 ¥2,210.8 Quote	Min.: 1 Mult.: 1
NTC Thermistors Temperature Sensor EP 44000 NTC Therm 44015RC TE Connectivity / Measurement Specialties 1: ¥3,637.6 55In Stock	Mfr. Part # 44015RC Mouser Part # 824-44015RC	TE Connectivity / Measurement Specialties	NTC Thermistors Temperature Sensor EP 44000 NTC Therm Learn More about TE Connectivity / Measurement Specialties te 44000 precision epoxy ntc thermistors	Datasheet	55In Stock	¥3,637.6 ¥3,307.1 ¥3,031.3 ¥2,685.8 View ¥2,641 ¥2,597.8 ¥2,342	Min.: 1 Mult.: 1
NTC Thermistors 44018 TE Connectivity / Measurement Specialties 1: ¥12,977.4 54In Stock	Mfr. Part # 44018 Mouser Part # 824-44018	TE Connectivity / Measurement Specialties	NTC Thermistors		54In Stock	¥12,977.4 ¥12,135.3 ¥10,512.5 ¥10,245 View ¥10,072.3 ¥8,907.9 Quote	Min.: 1 Mult.: 1
NTC Thermistors THERM DISCRETES 44014RC TE Connectivity / Measurement Specialties 100: ¥2,651 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # 44014RC Mouser Part # 824-44014RC	TE Connectivity / Measurement Specialties	NTC Thermistors THERM DISCRETES Learn More about TE Connectivity / Measurement Specialties te 44000 precision epoxy ntc thermistors	Datasheet	Non-Stocked Lead-Time 6 Weeks	¥2,651 ¥2,390.2	Min.: 100 Mult.: 10
Surface Mount Fuses 32V High I2T 1206 1.75A 04401.75WR Littelfuse 1: ¥182.7 2,750In Stock	Mfr. Part # 04401.75WR Mouser Part # 576-04401.75WR	Littelfuse	Surface Mount Fuses 32V High I2T 1206 1.75A Learn More about Littelfuse 440 1206 high i2t fuse	Datasheet	2,750In Stock	Cut Tape ¥182.7 ¥155 ¥134 ¥123.6 View Reel ¥83.2 ¥113.4 ¥105.1 ¥96.5 ¥83.2 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Fuse Holder 100-125V 3AG ACS 100-125V 03440125H Littelfuse 1: ¥6,011.2 419In Stock	Mfr. Part # 03440125H Mouser Part # 576-03440125H	Littelfuse	Fuse Holder 100-125V 3AG ACS 100-125V Learn More about Littelfuse 6x32 3ab3ag fuseholders	Datasheet	419In Stock	¥6,011.2 ¥5,262 ¥4,798.6 ¥4,290.4 ¥3,936.6	Min.: 1 Mult.: 1
Surface Mount Fuses FUSE 63V AUTOC HIGH I2T 1206 1.75A 04401.75WRA Littelfuse 1: ¥294 1,514In Stock	Mfr. Part # 04401.75WRA Mouser Part # 576-04401.75WRA	Littelfuse	Surface Mount Fuses FUSE 63V AUTOC HIGH I2T 1206 1.75A Learn More about Littelfuse 440a fuses	Datasheet	1,514In Stock	Cut Tape ¥294 ¥272.4 ¥225.9 ¥207.6 View Reel ¥124.9 ¥187.7 ¥172.7 ¥133.4 ¥124.9 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers Cir Brkr Hyd Mag IUG4-1REC4-40149-1 AIRPAX 1: ¥12,396 5In Stock	Mfr. Part # IUG4-1REC4-40149-1 Mouser Part # 874-IUG41REC4401491	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	5In Stock	¥12,396 ¥10,826.4 ¥7,526 ¥6,614.1 View ¥5,474.7 ¥5,012.9 Quote	Min.: 1 Mult.: 1
Circuit Breakers Cir Brkr Hyd Mag PR11-2-3.00A-9440-1-V AIRPAX 1: ¥2,885.2 44In Stock	Mfr. Part # PR11-2-3.00A-9440-1-V Mouser Part # 874-PR112300A94401V	AIRPAX	Circuit Breakers Cir Brkr Hyd Mag	Datasheet	44In Stock	¥2,885.2 ¥2,820.4 ¥2,730.7 ¥2,589.5 View ¥2,479.9 ¥2,403.5 ¥2,205.8 Quote	Min.: 1 Mult.: 1
Surface Mount Fuses 63V High I2T 1206 1.25A 04401.25WR Littelfuse 1: ¥207.6 3,611In Stock	Mfr. Part # 04401.25WR Mouser Part # 576-04401.25WR	Littelfuse	Surface Mount Fuses 63V High I2T 1206 1.25A Learn More about Littelfuse 440 1206 high i2t fuse	Datasheet	3,611In Stock	Cut Tape ¥207.6 ¥181 ¥169.4 ¥140.5 View Reel ¥92 ¥121.6 ¥114.1 ¥100.7 ¥92.8 ¥92 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
Circuit Breakers AA1B0224401B1C AA1-B0-22-440-1B1-C Carling Technologies 1: ¥5,964.7 2In Stock	Mfr. Part # AA1-B0-22-440-1B1-C Mouser Part # 691-AA1B0224401B1C	Carling Technologies	Circuit Breakers AA1B0224401B1C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	2In Stock	¥5,964.7 ¥4,948.1 ¥4,566.1 ¥3,782.1 View ¥3,523 ¥3,288.8 ¥3,052.9	Min.: 1 Mult.: 1
Circuit Breakers TCP 10/20A 1324401 Phoenix Contact 1: ¥4,439.9 63In Stock 36On Order	Mfr. Part # 1324401 Mouser Part # 651-1324401	Phoenix Contact	Circuit Breakers TCP 10/20A Learn More about Phoenix Contact tcp thermal circuit breakers	Datasheet	63In Stock 36On Order	¥4,439.9	Min.: 1 Mult.: 1
Surface Mount Fuses FUSE 50V AUTOC HIGH I2T 1206 .1.25A 04401.25WRA Littelfuse 3,000: ¥134.9 12,000Factory Stock Available	Mfr. Part # 04401.25WRA Mouser Part # 576-04401.25WRA	Littelfuse	Surface Mount Fuses FUSE 50V AUTOC HIGH I2T 1206 .1.25A Learn More about Littelfuse 440 1206 high i2t fuse	Datasheet	12,000Factory Stock Available More Info Available	Reel ¥134.9	Min.: 3,000 Mult.: 3,000 : 3,000
Circuit Breakers CIRCUIT BREAKER IULNK12-1REC4-40175-1 AIRPAX 1: ¥39,553.4 3Expected 12/17/2026	Mfr. Part # IULNK12-1REC4-40175-1 Mouser Part # 682-IULNK121R4401751	AIRPAX	Circuit Breakers CIRCUIT BREAKER	Datasheet	3Expected 12/17/2026	¥39,553.4 ¥34,548.8 ¥24,008.1 ¥21,101.3 View ¥17,463.8 Quote	Min.: 1 Mult.: 1
Triacs TAPE13 TRIAC BT137S-800E,118 WeEn Semiconductors 1: ¥252.5 4,586In Stock	Mfr. Part # BT137S-800E,118 Mouser Part # 771-BT137S-800E118	WeEn Semiconductors	Triacs TAPE13 TRIAC	Datasheet	4,586In Stock	Cut Tape ¥252.5 ¥155.3 ¥102.3 ¥80.4 Reel ¥62.1 View ¥68.8 ¥51.8 MouseReel Available	Min.: 1 Mult.: 1 : 2,500
Circuit Breakers AA1F0144401D1C AA1-F0-14-440-1D1-C Carling Technologies 1: ¥7,418 9Expected 11/23/2026	Mfr. Part # AA1-F0-14-440-1D1-C Mouser Part # 691-AA1F0144401D1C	Carling Technologies	Circuit Breakers AA1F0144401D1C Learn More about Carling Technologies carling hydraulic magnetic circuit breakers	Datasheet	9Expected 11/23/2026	¥7,418 ¥6,320.1 ¥5,999.5 ¥5,489.6 View ¥4,991.3 ¥4,811.9 Quote	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K C-TRIP 5SY44017 Siemens 1: ¥40,270.9 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # 5SY44017 Mouser Part # 982-5SY44017	Siemens	Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K C-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	Non-Stocked Lead-Time 6 Weeks	¥40,270.9 ¥37,759.5 ¥35,645.1 ¥33,789.7 View Quote	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K D-TRIP 5SY44018 Siemens 1: ¥40,270.9 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # 5SY44018 Mouser Part # 982-5SY44018	Siemens	Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K D-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	Non-Stocked Lead-Time 6 Weeks	¥40,270.9 ¥37,759.5 ¥35,645.1 ¥33,789.7 View Quote	Min.: 1 Mult.: 1
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 482-G212-J1M1-B2S0-044012-7.5A E-T-A 1: ¥32,039 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # 482-G212-J1M1-B2S0-044012-7.5A Mouser Part # 457-M1B2S00440127.5A	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	Non-Stocked Lead-Time 52 Weeks	¥32,039	Min.: 1 Mult.: 1
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 482-G212-J1M1-B2S0-044012-15A E-T-A 1: ¥32,039 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # 482-G212-J1M1-B2S0-044012-15A Mouser Part # 457-1M1B2S004401215A	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	Non-Stocked Lead-Time 52 Weeks	¥32,039	Min.: 1 Mult.: 1
Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K A-TRIP 5SY44015 Siemens 1: ¥40,270.9 Non-Stocked Lead-Time 6 Weeks	Mfr. Part # 5SY44015 Mouser Part # 982-5SY44015	Siemens	Circuit Breakers SUP PTOR 5SY4 4P 480V 1A 5K A-TRIP Learn More about Siemens 5sy4 mini circuit breakers	Datasheet	Non-Stocked Lead-Time 6 Weeks	¥40,270.9 ¥37,759.5 ¥35,645.1 ¥33,789.7 View Quote	Min.: 1 Mult.: 1
Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit 482-G212-K1M1-A1S0-044012-3A E-T-A 1: ¥29,140.6 Non-Stocked Lead-Time 52 Weeks	Mfr. Part # 482-G212-K1M1-A1S0-044012-3A Mouser Part # 457-K1M1A1S00440123A	E-T-A	Circuit Breakers Single pole compact high performance thermal circuit breaker with tease-free, trip-free, snap action mechanism and push/pull on/off manual actuation (M-type TO CBE to EN 60934). An indicator band on the push button clearly shows the tripped/off posit	Datasheet	Non-Stocked Lead-Time 52 Weeks	¥29,140.6 ¥24,905 ¥23,001.5	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Fuse,DIV,gG,80A,500VAC,400VDC Altech 002314401 002314401 Altech 1: ¥3,126 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # 002314401 Mouser Part # 845-002314401	Altech	Industrial & Electrical Fuses Fuse,DIV,gG,80A,500VAC,400VDC		Non-Stocked Lead-Time 10 Weeks	¥3,126 ¥3,038 ¥2,898.4 ¥2,788.8 View ¥2,715.7 Quote	Min.: 1 Mult.: 1
Circuit Breaker Accessories 15A 4P BUS PLUG WITH ED4 BREAKER IP54 Siemens SLEC440154ED4 SLEC440154ED4 Siemens 1: ¥684,782.1 Non-Stocked Lead-Time 7 Weeks New At Mouser	Mfr. Part # SLEC440154ED4 Mouser Part # 982-SLEC440154ED4 New At Mouser	Siemens	Circuit Breaker Accessories 15A 4P BUS PLUG WITH ED4 BREAKER IP54		Non-Stocked Lead-Time 7 Weeks	¥684,782.1	Min.: 1 Mult.: 1
Circuit Breakers BP CB ED4 3P4W 480V 15A IP55 IG Siemens SLEC440154IGED4 SLEC440154IGED4 Siemens 1: ¥710,768.5 Non-Stocked Lead-Time 7 Weeks New At Mouser	Mfr. Part # SLEC440154IGED4 Mouser Part # 982-SLEC440154IGED4 New At Mouser	Siemens	Circuit Breakers BP CB ED4 3P4W 480V 15A IP55 IG		Non-Stocked Lead-Time 7 Weeks	¥710,768.5	Min.: 1 Mult.: 1

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Circuit Protection

Types of Circuit Protection