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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

3 of 999+
In Stock
Eaton 32 A Neutral Link x 9 mm
  • RS Stock No. 262-483
  • Mfr. Part No. 32CMLC
Subtotal (1 pack of 10 units)
£35.83(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 32A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3398
  • Mfr. Part No. A9F54332
Subtotal (1 unit)
£106.92(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 4A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3376
  • Mfr. Part No. A9F54304
Subtotal (1 unit)
£129.67(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 Acti9 3 Phase Busbar, 415 V ac, 18 mm Pitch
  • RS Stock No. 776-2730
  • Mfr. Part No. A9XPH324
Subtotal (1 unit)
£64.47(exc. VAT)
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 4A, Type C, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 624-0327
  • Mfr. Part No. 278553 FAZ-C4/1
Subtotal (1 unit)
£26.05(exc. VAT)
In Stock
Eaton 4A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8370
  • Mfr. Part No. C10G4
Subtotal (1 pack of 10 units)
£11.01(exc. VAT)
Temporarily out of stock
RS PRO Fuse Kit
  • RS Stock No. 420-252
Subtotal (1 kit)
£63.49(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 2A, Type C, 12V, 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
RS PRO 380V Rail Auxiliary Release Circuit Trip for use with MS32 & MSB32 Motor Protection Circuit Breakers
  • RS Stock No. 121-6863
Subtotal (1 unit)
£9.75(exc. VAT)
Stocked by manufacturer
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 339-337
  • Mfr. Part No. SEE116C03
Subtotal (1 unit)
£137.42(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 6A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3385
  • Mfr. Part No. A9F54306
Subtotal (1 unit)
£117.64(exc. VAT)
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 4A, Type C, 253V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 746-7652
  • Mfr. Part No. 2CDS251001R0044 S201-C4
Subtotal (1 unit)
£16.93(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 6A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3332
  • Mfr. Part No. A9F54206
Subtotal (1 unit)
£80.18(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 20A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3391
  • Mfr. Part No. A9F54320
Subtotal (1 unit)
£106.92(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 16A, Type D, 100V, 12 V, 133 V, 220 V, 240 V, 60 V AC,
  • RS Stock No. 791-3473
  • Mfr. Part No. A9F55116
Subtotal (1 unit)
£25.86(exc. VAT)
In Stock
RS Better World
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)
£108.27(exc. VAT)
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)
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 201-6932
  • Mfr. Part No. 2CSR275180R1164 DS201 M C16 A30
Subtotal (1 unit)
£133.31(exc. VAT)
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 20A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6594
  • Mfr. Part No. EUC3P20C
Subtotal (1 unit)
£22.40(exc. VAT)
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 50A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3587
  • Mfr. Part No. A9F55350
Subtotal (1 unit)
£145.65(exc. VAT)
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