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

50707 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO Fuse Kit
  • RS Stock No. 893-8530
Subtotal (1 unit)
£70.38(exc. VAT)
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Subtotal (1 unit)
£45.04(exc. VAT)
In Stock
Eaton 16 A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8399
  • Mfr. Part No. C10G16
Subtotal (1 pack of 10 units)
£11.01(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 12 V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3382
  • Mfr. Part No. A9F54316
Subtotal (1 unit)
£106.92(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3293
  • Mfr. Part No. A9F54110
Subtotal (1 unit)
£24.20(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 16 A, Type C, 240 V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3297
  • Mfr. Part No. A9F54116
Subtotal (1 unit)
£24.20(exc. VAT)
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9562
  • Mfr. Part No. 00950011XXN
Subtotal (1 unit)
£45.97(exc. VAT)
In Stock
RS PRO Fuse Kit
  • RS Stock No. 541-3108
Subtotal (1 pack of 10 units)
£3.24(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 2 A, Type C, 12 V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
Subtotal (1 unit)
£92.21(exc. VAT)
In Stock
Europa Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 153-3459
  • Mfr. Part No. EUBLMC16C30A
Subtotal (1 unit)
£69.96(exc. VAT)
In Stock
Schneider Electric Easy9 EZ9 Miniature Circuit Breaker, 1-Pole, 3 A, Type B, 230 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8596
  • Mfr. Part No. EZ9F16103
Subtotal (1 unit)
£4.03(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 240 V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0204
Subtotal (1 unit)
£8.57(exc. VAT)
Being discontinued
RS PRO 1 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-380
Subtotal (1 pack of 10 units)
£2.78(exc. VAT)
In Stock
Better World
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Subtotal (1 unit)
£148.47(exc. VAT)
In Stock
Hager MJT Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 400 V ac AC, 253 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 144-4950
  • Mfr. Part No. MJT716
Subtotal (1 unit)
£23.97(exc. VAT)
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6585
  • Mfr. Part No. EUC3P16C
Subtotal (1 unit)
£22.40(exc. VAT)
In Stock
Littelfuse 5 A Brown Car Fuse, 32 V dc
  • RS Stock No. 787-4108
  • Mfr. Part No. 0287005.PXCN
Subtotal (1 pack of 10 units)
£2.35(exc. VAT)
In Stock
Eaton 13 A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-605
  • Mfr. Part No. TDC180-13A
Subtotal (1 pack of 10 units)
£5.48(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 32 A, Type C, 240 V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3304
  • Mfr. Part No. A9F54132
Subtotal (1 unit)
£25.48(exc. VAT)
In Stock
Mersen 30 A FF Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 136-0621
  • Mfr. Part No. G1014582 / FR10GR69V30
Subtotal (1 unit)
£6.70(exc. VAT)
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