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

50873 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO Non-Resettable Fuse, Radial 630mA, 250V ac
  • RS Stock No. 767-5036
Subtotal (1 pack of 10 units)
Kr. 43,36(exc. VAT)
Kr. 4,336/unit
In Stock
RS Better World
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 2A, Type B, 440V ac AC, 72 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 203-2183
  • Mfr. Part No. 5SY6102-6
Subtotal (1 unit)
Kr. 201,09(exc. VAT)
Kr. 201,09/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 4-Pole, 32A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 219-9140
  • Mfr. Part No. M9F22432
Subtotal (1 unit)
Kr. 1 060,72(exc. VAT)
Kr. 1 060,72/unit
In Stock
ABB F200 Series Residual Current Circuit Breaker, 40A, 4-Pole, 300 mA, Type A, 0.3 A 480V ac
  • RS Stock No. 488-6280
  • Mfr. Part No. 2CSF204101R3400 - F204A-40/0.3
Subtotal (1 unit)
Kr. 975,19(exc. VAT)
Kr. 975,19/unit
In Stock
RS PRO 10A In-line Fuse Holder for 5 x 20 mm, 250V
  • RS Stock No. 237-5259
Subtotal (1 unit)
Kr. 32,03(exc. VAT)
Kr. 32,03/unit
In Stock
RS PRO 30A In-line Fuse Holder for 19 x 18.6 mm, 32V dc
  • RS Stock No. 284-6489
Subtotal (1 pack of 5 units)
Kr. 268,01(exc. VAT)
Kr. 53,602/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 20A, Type D, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3477
  • Mfr. Part No. A9F55120
Subtotal (1 unit)
Kr. 287,37(exc. VAT)
Kr. 287,37/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 10A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0179
Subtotal (1 unit)
Kr. 89,46(exc. VAT)
Kr. 89,46/unit
Last RS stock
RS PRO Non-Resettable Fuse, Radial 630mA, 250V
  • RS Stock No. 767-5109
Subtotal (1 pack of 10 units)
Kr. 17,62(exc. VAT)
Kr. 1,762/unit
In Stock
Schurter 0.8A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 269-3872
  • Mfr. Part No. 8020.5067
Subtotal (1 unit)
Kr. 16,82(exc. VAT)
Kr. 16,82/unit
In Stock
Schurter 4A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 167-8109
  • Mfr. Part No. 0034.3123
Subtotal (1 pack of 10 units)
Kr. 57,09(exc. VAT)
Kr. 5,709/unit
Temporarily out of stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 4-Pole, 20A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 219-9139
  • Mfr. Part No. M9F22420
Subtotal (1 unit)
Kr. 1 294,09(exc. VAT)
Kr. 1 294,09/unit
In Stock
Littelfuse 4A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4511
  • Mfr. Part No. 0218004.MXP
Subtotal (1 pack of 10 units)
Kr. 115,77(exc. VAT)
Kr. 11,577/unit
In Stock
RS Better World
Schneider Electric Earthing Strap Copper Copper 8.5 mm Diameter 25 mm² Diameter
  • RS Stock No. 222-3854
  • Mfr. Part No. NSYEB2025D8
Subtotal (1 pack of 10 units)
Kr. 499,57(exc. VAT)
Kr. 49,957/unit
In Stock
RS PRO 8A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 721-1585
Subtotal (1 pack of 10 units)
Kr. 153,90(exc. VAT)
Kr. 15,39/unit
In Stock
SIBA 8A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 418-9602
  • Mfr. Part No. 70-059-61 8A
Subtotal (1 pack of 10 units)
Kr. 78,59(exc. VAT)
Kr. 7,859/unit
In Stock
Mersen 3.15A Quick Acting Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 630-874
  • Mfr. Part No. R090520Q / MI5SF25V3.15/100
Subtotal (1 box of 10 units)
Kr. 62,23(exc. VAT)
Kr. 62,23/box
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 3-Pole, 6A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 211-2373
  • Mfr. Part No. M9F22306
Subtotal (1 unit)
Kr. 800,69(exc. VAT)
Kr. 800,69/unit
In Stock
Socomec 100A F Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 223-2811
  • Mfr. Part No. 60320100
Subtotal (1 pack of 10 units)
Kr. 471,67(exc. VAT)
Kr. 47,167/unit
In Stock
Limitor Thermal Fuse 152 °C, 15A, 250V ac
  • RS Stock No. 797-6058
  • Mfr. Part No. SF 150 R
Subtotal (1 pack of 10 units)
Kr. 119,13(exc. VAT)
Kr. 11,913/unit
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