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

51720 Products showing for Fuses & Circuit Breakers

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In Stock
NEMIQ Earthing Strap Tin Plated Copper 20 mm Diameter 25 mm² Diameter
  • RS Stock No. 288-4616
  • Mfr. Part No. JF 25-100 M10
Subtotal (1 unit)
Kr. 56,02(exc. VAT)
Kr. 56,02/unit
In Stock
RS PRO 5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6089
Subtotal (1 pack of 10 units)
Kr. 99,30(exc. VAT)
Kr. 9,93/unit
In Stock
RS PRO 8A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 611-9122
Subtotal (1 pack of 10 units)
Kr. 128,76(exc. VAT)
Kr. 12,876/unit
In Stock
Schurter CQP Tin Plated Beryllium Copper, PCB Fuse Clip for 6.3 x 32 mm Cartridge Fuse
  • RS Stock No. 703-2798
  • Mfr. Part No. 8040.0001
Subtotal (1 bag of 10 units)
Kr. 93,01(exc. VAT)
Kr. 9,301/unit
In Stock
RS PRO 6.3A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-330
Subtotal (1 pack of 10 units)
Kr. 50,56(exc. VAT)
Kr. 5,056/unit
In Stock
Hager Copper Single UM30A1 Busbar, 5 mm Pitch
  • RS Stock No. 252-2634
  • Mfr. Part No. UM30A1
Subtotal (1 unit)
Kr. 1 174,66(exc. VAT)
Kr. 1 174,66/unit
In Stock
Eaton 1A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1212
  • Mfr. Part No. S500-1-R
Subtotal (1 pack of 10 units)
Kr. 16,52(exc. VAT)
Kr. 1,652/unit
In Stock
RS PRO 500mA T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 611-0232
Subtotal (1 pack of 10 units)
Kr. 219,82(exc. VAT)
Kr. 21,982/unit
In Stock
RS PRO 7A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6098
Subtotal (1 pack of 10 units)
Kr. 97,70(exc. VAT)
Kr. 9,77/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
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 PRO 8A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-497
Subtotal (1 pack of 10 units)
Kr. 68,75(exc. VAT)
Kr. 6,875/unit
Currently unavailable
Selco Thermal Fuse 84 °C
  • RS Stock No. 111-7300
  • Mfr. Part No. STC-183
Subtotal (1 pack of 10 units)
Kr. 188,23(exc. VAT)
Kr. 18,823/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
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
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 10A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9844
Subtotal (1 pack of 10 units)
Kr. 65,22(exc. VAT)
Kr. 6,522/unit
In Stock
Lovato 32A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 690V ac
  • RS Stock No. 188-1613
  • Mfr. Part No. FB01B1P
Subtotal (1 unit)
Kr. 39,35(exc. VAT)
Kr. 39,35/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
Currently unavailable
RS PRO 5A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-532
Subtotal (1 pack of 10 units)
Kr. 38,21(exc. VAT)
Kr. 3,821/unit
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