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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

52678 Products showing for Fuses & Circuit Breakers

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In Stock
RS PRO Rail Mount Fuse Holder for 5 x 25 mm, 24V
  • RS Stock No. 501-871
Subtotal (1 unit)
£10.05(exc. VAT)
£10.05/unit
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
Schurter 20A Panel Mount Fuse Holder, 1P-Pole for 6.3 x 32 mm, 600V ac
  • RS Stock No. 123-2017
  • Mfr. Part No. 0031.1622
Subtotal (1 unit)
£10.38(exc. VAT)
£10.38/unit
In Stock
RS PRO 16A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 209-9298
Subtotal (1 pack of 10 units)
£12.56(exc. VAT)
£12.56/pack
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8537
Subtotal (1 unit)
£92.12(exc. VAT)
£92.12/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 10A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3161
  • Mfr. Part No. A9F53110
Subtotal (1 unit)
£26.81(exc. VAT)
£26.81/unit
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 16A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6585
  • Mfr. Part No. EUC3P16C
Subtotal (1 unit)
£22.40(exc. VAT)
£22.40/unit
In Stock
Europa Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 210-4729
  • Mfr. Part No. EUBLMC16B30A
Subtotal (1 unit)
£69.96(exc. VAT)
£69.96/unit
In Stock
RS PRO Industrial Surge Protector, 50 kA, 3.6 kV, DIN Rail
  • RS Stock No. 101-757
Subtotal (1 unit)
£99.84(exc. VAT)
£99.84/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0831
  • Mfr. Part No. 8GK9733-0KK10
Subtotal (1 unit)
£38.89(exc. VAT)
£38.89/unit
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
RS PRO 1A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6067
Subtotal (1 pack of 10 units)
£7.61(exc. VAT)
£7.61/pack
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8543
Subtotal (1 unit)
£173.29(exc. VAT)
£173.29/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 25A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3394
  • Mfr. Part No. A9F54325
Subtotal (1 unit)
£116.89(exc. VAT)
£116.89/unit
In Stock
Europa EUC2P EUC2P Miniature Circuit Breaker, 2-Pole, 10A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6547
  • Mfr. Part No. EUC2P10C
Subtotal (1 unit)
£15.36(exc. VAT)
£15.36/unit
In Stock
Europa EUR1 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A, 10 kA 415V ac
  • RS Stock No. 210-4753
  • Mfr. Part No. EUR140.30/4A
Subtotal (1 unit)
£66.91(exc. VAT)
£66.91/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
Schurter 10A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7842
  • Mfr. Part No. 0034.1526
Subtotal (1 bag of 10 units)
£3.15(exc. VAT)
£3.15/bag
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 4A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0176
Subtotal (1 unit)
£19.48(exc. VAT)
£19.48/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 32A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3574
  • Mfr. Part No. A9F55332
Subtotal (1 unit)
£121.21(exc. VAT)
£121.21/unit
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