Fuses & Circuit Breakers

Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

Fuses

Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

Circuit breakers

Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses

50639 Products showing for Fuses & Circuit Breakers

3 of 999+
Temporairement en rupture de stock
Littelfuse 15A F Melamine Cartridge Fuse, 10 x 38mm
  • RS Stock No. 337-5240
  • Mfr. Part No. 0KLK015.T
L'unité (en paquet de 5)
29,306 €(exc. VAT)
En stock
Siemens 250A NH Fuse, NH1, 440 - 500V ac/dc
  • RS Stock No. 269-8310
  • Mfr. Part No. 3NA6144
L'unité (en paquet de 3)
24,967 €(exc. VAT)
En stock
Eaton 6.3A Panel Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 310-9841
  • Mfr. Part No. HTC-30M
L'unité (en paquet de 5)
2,542 €(exc. VAT)
En stock
Better World
Schneider Electric Acti9 Acti9 iDT40K MCB, 1+N, 16A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 238-3412
  • Mfr. Part No. A9P71616
la pièce
23,54 €(exc. VAT)
En stock
Eaton MCB, 1+N, 2A Curve C
  • RS Stock No. 230-1095
  • Mfr. Part No. 264690 PLG6-C2/1N
la pièce
18,76 €(exc. VAT)
En stock
Mersen 20A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4360
  • Mfr. Part No. ATM20
la pièce
14,15 €(exc. VAT)
En stock
RS PRO 1.5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3394
L'unité (en paquet de 10)
0,425 €(exc. VAT)
En stock
Siemens 63A NH Fuse, NH00, 500V ac
  • RS Stock No. 396-089
  • Mfr. Part No. 3NA3822-7
L'unité (en paquet de 3)
7,87 €(exc. VAT)
En stock
RS PRO PC Board Non Resettable Fuse, Radial 3.15A, 250V
  • RS Stock No. 767-5153
L'unité (en paquet de 10)
0,279 €(exc. VAT)
En stock
Littelfuse 40A Orange Blade Car Fuse, 32V dc
  • RS Stock No. 894-9580
  • Mfr. Part No. 0299040.ZXNV
L'unité (en paquet de 5)
2,174 €(exc. VAT)
En stock
Mersen 10A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4409
  • Mfr. Part No. ATMR10
la pièce
20,96 €(exc. VAT)
En stock
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 32A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2352
  • Mfr. Part No. M9F21432
la pièce
167,91 €(exc. VAT)
En voie de retrait du marché
RS PRO 3A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-649A
L'unité (en paquet de 100)
0,229 €(exc. VAT)
En stock
RS PRO MCB, 1P, 3A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0200
la pièce
3,33 €(exc. VAT)
Temporairement en rupture de stock
ABB High Performance S800S MCB, 2P, 80A Curve C, 400V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 435-510
  • Mfr. Part No. 2CCG001229R0001
la pièce
224,33 €(exc. VAT)
En voie de retrait du marché
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-431
L'unité (en paquet de 10)
0,331 €(exc. VAT)
En stock
Eaton 4A Slow-Blow Cartridge Fuse, 14 x 51mm
  • RS Stock No. 229-114
  • Mfr. Part No. C14M4 CYLINDRICAL FUSE 14 x 51 4A AM 690V AC
1 paquet de 10
17,03 €(exc. VAT)
En stock
RS PRO 2.5A FF Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 721-1594
L'unité (en paquet de 10)
1,244 €(exc. VAT)
En voie de retrait du marché
RS PRO 30A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 177-8107
L'unité (en paquet de 50)
0,398 €(exc. VAT)
En stock
Better World
Siemens Sentron 5SY4 MCB, 1P, 2A Curve C, 250V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 622-0014
  • Mfr. Part No. 5SY4102-7
la pièce
22,98 €(exc. VAT)
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