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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

52030 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3281
  • Mfr. Part No. A9F54104
Subtotal (1 unit)
£29.04(exc. VAT)
£29.04/unit
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 12A, Type B, 240V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-0875
  • Mfr. Part No. 177395 FAZ6-B12/1
Subtotal (1 unit)
£16.25(exc. VAT)
£16.25/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
SIBA 10A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 418-9618
  • Mfr. Part No. 70-059-61/10A
Subtotal (1 pack of 10 units)
£6.06(exc. VAT)
£6.06/pack
In Stock
Eaton 2A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 489-4405
  • Mfr. Part No. C10G2
Subtotal (1 pack of 10 units)
£11.12(exc. VAT)
£11.12/pack
In Stock
RS PRO 10A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 413-248
Subtotal (1 pack of 10 units)
£13.45(exc. VAT)
£13.45/pack
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0192
Subtotal (1 unit)
£8.66(exc. VAT)
£8.66/unit
In Stock
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)
£149.67/unit
In Stock
Allen Bradley 1492-SPM Miniature Circuit Breaker, 2-Pole, 3A, Type C, 480V ac AC, 96 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1469
  • Mfr. Part No. 1492-SPM2C030
Subtotal (1 unit)
£44.53(exc. VAT)
£44.53/unit
In Stock
Eaton 6A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8374
  • Mfr. Part No. C10G6
Subtotal (1 pack of 10 units)
£11.01(exc. VAT)
£11.01/pack
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)
£1.83/pack
In Stock
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9816
Subtotal (1 pack of 10 units)
£4.79(exc. VAT)
£4.79/pack
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Subtotal (1 unit)
£148.47(exc. VAT)
£148.47/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9562
  • Mfr. Part No. 00950011XXN
Subtotal (1 unit)
£92.39(exc. VAT)
£92.39/unit
In Stock
RS Better World
Siemens SENTRON 5SL6 Miniature Circuit Breaker, 3-Pole, 10A, Type C, 400V ac AC, 72 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 202-7213
  • Mfr. Part No. 5SL6310-7
Subtotal (1 unit)
£69.58(exc. VAT)
£69.58/unit
In Stock
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)
£72.15/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 1A, Type B, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0165
Subtotal (1 unit)
£8.67(exc. VAT)
£8.67/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)
£112.28(exc. VAT)
£112.28/unit
In Stock
Mersen 32A GG Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 247-2853
  • Mfr. Part No. P200757 / FR14GG50V32P
Subtotal (1 box of 10 units)
£63.73(exc. VAT)
£63.73/box
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 3A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0200
Subtotal (1 unit)
£8.66(exc. VAT)
£8.66/unit
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