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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

51811 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Europa ECUBP Blanking Plate for use with Consumer Units, Garage Units & Shower Units
  • RS Stock No. 201-7936
  • Mfr. Part No. ECUBP
Subtotal (1 pair)
£4.01(exc. VAT)
£4.01/pair
In Stock
Eaton 20A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8392
  • Mfr. Part No. C10G20
Subtotal (1 pack of 10 units)
£11.01(exc. VAT)
£11.01/pack
In Stock
Littelfuse 2A Grey Car Fuse, 32V dc
  • RS Stock No. 787-4126
  • Mfr. Part No. 0287002.PXCN
Subtotal (1 pack of 10 units)
£3.04(exc. VAT)
£0.304/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Subtotal (1 unit)
£45.49(exc. VAT)
£45.49/unit
In Stock
Littelfuse 15A Blue Car Fuse, 32V dc
  • RS Stock No. 787-4120
  • Mfr. Part No. 0287015.PXCN
Subtotal (1 pack of 10 units)
£2.54(exc. VAT)
£2.54/pack
In Stock
Eaton 50A Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 703-8443
  • Mfr. Part No. C14G50
Subtotal (1 pack of 10 units)
£20.89(exc. VAT)
£20.89/pack
Temporarily out of stock
RS PRO RCBO, 6A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type C, RSKO Range, RCBO Range
  • RS Stock No. 756-196
Subtotal (1 unit)
£26.48(exc. VAT)
£26.48/unit
In Stock
RS PRO 3 Phase Industrial Surge Protector, 50 kA, 1.5 kV, DIN Rail
  • RS Stock No. 101-741
Subtotal (1 unit)
£138.11(exc. VAT)
£138.11/unit
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Complete Fuse Protection for Critical Operations
Our fuse range delivers reliable circuit protection to keep automated processes operating without interruption.
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In Stock
RS PRO Earthing Kit
  • RS Stock No. 528-983
Subtotal (1 unit)
£21.78(exc. VAT)
£21.78/unit
In Stock
RS PRO 20A British Standard Fuse A1 550V ac, 44.5 mm
  • RS Stock No. 521-2523
Subtotal (1 pack of 5 units)
£20.54(exc. VAT)
£20.54/pack
In Stock
Eaton 32A British Standard Fuse A2 550V ac, 73 mm
  • RS Stock No. 413-377
  • Mfr. Part No. AAO32
Subtotal (1 pack of 5 units)
£33.16(exc. VAT)
£33.16/pack
In Stock
RS PRO Rail Mount Fuse Holder for 5 x 25 mm, 24V
  • RS Stock No. 501-871
Subtotal (1 unit)
£9.75(exc. VAT)
£9.75/unit
In Stock
Eaton 32A Tag Fuse 22 x 86 mm 660V
  • RS Stock No. 261-417
  • Mfr. Part No. TIA32
Subtotal (1 pack of 20 units)
£171.77(exc. VAT)
£171.77/pack
In Stock
Murrelektronik Limited MICO MICO Electronic Circuit Breaker 6A 24V, 4 channels, DIN Rail
  • RS Stock No. 123-6689
  • Mfr. Part No. 9000-41034-0100600
Subtotal (1 unit)
£138.63(exc. VAT)
£138.63/unit
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 10A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6581
  • Mfr. Part No. EUC3P10C
Subtotal (1 unit)
£22.40(exc. VAT)
£22.40/unit
In Stock
RS PRO Earthing Strap Stainless Steel Stainless Steel 32 mm Diameter 10 mm² Diameter 12 mm Diameter
  • RS Stock No. 390-2448
Subtotal (1 pack of 10 units)
£17.55(exc. VAT)
£17.55/pack
In Stock
RS PRO 1A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9765
Subtotal (1 pack of 10 units)
£4.79(exc. VAT)
£4.79/pack
In Stock
Schurter 16A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7808
  • Mfr. Part No. 0001.2516
Subtotal (1 bag of 10 units)
£5.67(exc. VAT)
£0.567/unit
In Stock
RS PRO 1 Phase Industrial Surge Protector, 10 kA, 1.1 kV, DIN Rail
  • RS Stock No. 101-748
Subtotal (1 unit)
£23.38(exc. VAT)
£23.38/unit
In Stock
Mersen 8A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2725
  • Mfr. Part No. D217169 / FR10GG50V8
Subtotal (1 box of 10 units)
£14.28(exc. VAT)
£14.28/box
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