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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

51178 Products showing for Fuses & Circuit Breakers

4 of 999+
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 6A, Type B, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3180
  • Mfr. Part No. A9F53206
Subtotal (1 unit)
£81.52(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 25A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3571
  • Mfr. Part No. A9F55325
Subtotal (1 unit)
£117.64(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 16A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3344
  • Mfr. Part No. A9F54216
Subtotal (1 unit)
£72.15(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 40A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3578
  • Mfr. Part No. A9F55340
Subtotal (1 unit)
£122.98(exc. VAT)
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)
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)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 63A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3580
  • Mfr. Part No. A9F55363
Subtotal (1 unit)
£149.67(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 16A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3568
  • Mfr. Part No. A9F55316
Subtotal (1 unit)
£113.61(exc. VAT)
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 611-9138
Subtotal (1 unit)
£144.46(exc. VAT)
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)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 10A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3341
  • Mfr. Part No. A9F54210
Subtotal (1 unit)
£73.51(exc. VAT)
In Stock
Eaton 2A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
£17.33(exc. VAT)
In Stock
Eaton 125A British Standard Fuse B2 415V ac, 111 mm
  • RS Stock No. 156-8686
  • Mfr. Part No. DD125
Subtotal (1 unit)
£22.51(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 3-Pole, 16A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0206
Subtotal (1 unit)
£29.22(exc. VAT)
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 4-Pole, 32A, Type C, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7817
  • Mfr. Part No. 2CDS254001R0324 S204-C32
Subtotal (1 unit)
£155.99(exc. VAT)
In Stock
nVent ERIFLEX Brass ERIFLEX 56866 Busbar
  • RS Stock No. 277-6178
  • Mfr. Part No. 568662
Subtotal (1 unit)
£24.23(exc. VAT)
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 10A, Type C, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 624-0333
  • Mfr. Part No. 278557 FAZ-C10/1
Subtotal (1 unit)
£22.85(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Subtotal (1 unit)
£24.20(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0194
Subtotal (1 unit)
£8.66(exc. VAT)
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)
£1.83(exc. VAT)
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