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

48869 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Littelfuse 160 A Grey, White Car Fuse, 48 V dc
  • RS stock no. 226-0917
  • Mfr. Part No. 157.5701.6161
Subtotal (1 unit)
R 169,69(exc. VAT)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3446
  • Mfr. Part No. A9F77110
Subtotal (1 unit)
R 272,22(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 20 A, Type C, 240 V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0199
Subtotal (1 unit)
R 227,30(exc. VAT)
Being discontinued
RS PRO 1 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS stock no. 563-380
Subtotal (1 pack of 10 units)
R 41,05(exc. VAT)
In Stock
Littelfuse 12 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 787-4303
  • Mfr. Part No. 0314012.HXP
Subtotal (1 pack of 5 units)
R 61,19(exc. VAT)
In Stock
RS PRO Non-Resettable Fuse, Radial 2 A, 250 V ac
  • RS stock no. 767-5055
Subtotal (1 pack of 10 units)
R 56,13(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6 A, Type C, 240 V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0177
Subtotal (1 unit)
R 412,42(exc. VAT)
In Stock
Selco Thermal Fuse 240 °C, 10 A, 250 V ac
  • RS stock no. 111-7813
  • Mfr. Part No. SWTC-464-3535
Subtotal (1 pack of 10 units)
R 370,00(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 20 A, Type C, 240 V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0183
Subtotal (1 unit)
R 491,22(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 250V ac Voltage Rating, 30A Current Rating
  • RS stock no. 782-8016
  • Mfr. Part No. W54-XB1A4A10-30
Subtotal (1 unit)
R 115,59(exc. VAT)
In Stock
Schurter 1 A F Glass Cartridge Fuse, 5 x 20 mm
  • RS stock no. 167-7702
  • Mfr. Part No. 0034.1516
Subtotal (1 pack of 10 units)
R 78,31(exc. VAT)
In Stock
Better World
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 1-Pole, 30 mA Trip
  • RS stock no. 247-2231
  • Mfr. Part No. R9D01616
Subtotal (1 unit)
R 993,78(exc. VAT)
In Stock
WJ Furse Copper Earth Bar L. 650 mm x W. 90 mm x H. 96 mm 8 Ways
  • RS stock no. 124-2505
  • Mfr. Part No. 7TCA083670R0634 LK207-8
Subtotal (1 unit)
R 6 711,79(exc. VAT)
Being discontinued
RS PRO 10 A T Glass Cartridge Fuse, 5 x 20 mm
  • RS stock no. 563-334
Subtotal (1 pack of 10 units)
R 17,46(exc. VAT)
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS stock no. 226-0831
  • Mfr. Part No. 8GK9733-0KK10
Subtotal (1 unit)
R 894,03(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 25 A, Type C, 100 V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS stock no. 734-9144
  • Mfr. Part No. A9F77225
Subtotal (1 unit)
R 1 037,28(exc. VAT)
In Stock
RS PRO 15A Inline Fuse Holder for ATO/ATC 19x18.6mm Fuse, 32V
  • RS stock no. 237-5266
Subtotal (1 unit)
R 79,76(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W54 Single Pole 250V ac Voltage Rating, 20A Current Rating
  • RS stock no. 782-7988
  • Mfr. Part No. W54-XB1A4A10-20
Subtotal (1 unit)
R 94,28(exc. VAT)
In Stock
RS PRO 100 mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS stock no. 610-9579
Subtotal (1 pack of 10 units)
R 149,84(exc. VAT)
In Stock
RS PRO 10 mA to 60 A Yellow Car Fuse, 32 V dc
  • RS stock no. 563-762
Subtotal (1 pack of 10 units)
R 18,72(exc. VAT)
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