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.

50914 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 229-149
  • Mfr. Part No. OSD80
1 Pack of 20
£583.09(exc. VAT)
  • RS Stock No. 260-7745
  • Mfr. Part No. C16B44V160
Each
£2,407.62(exc. VAT)
  • RS Stock No. 251-3478
  • Mfr. Part No. 1SCA022627R5710
1 Box of 3
£45.54(exc. VAT)
Better World
  • RS Stock No. 219-8891
  • Mfr. Part No. KNA160ED4204
Each
£343.16(exc. VAT)
  • RS Stock No. 250-125
  • Mfr. Part No. 3VA6580-5JT36-0AA0
Each
£4,139.00(exc. VAT)
Better World
  • RS Stock No. 160-202
  • Mfr. Part No. 3RV2421-0FA10
Each
£69.62(exc. VAT)
  • RS Stock No. 210-6896
  • Mfr. Part No. 3NA3360-6
Each (In a Pack of 3)
£112.357(exc. VAT)
  • RS Stock No. 541-3669P
  • Mfr. Part No. 0452004.MRL
Each (Supplied on a Reel)
£1.559(exc. VAT)
  • RS Stock No. 260-7915
  • Mfr. Part No. C25H3TM160
Each
£1,578.09(exc. VAT)
  • RS Stock No. 111-3544
  • Mfr. Part No. PYDN-15.5-080S
Each
£3.72(exc. VAT)
  • RS Stock No. 237-5209
  • Mfr. Part No. 2CSR274101R1165
Each
£334.00(exc. VAT)
Better World
  • RS Stock No. 151-1215
  • Mfr. Part No. 5SU1356-7KK13
Each
£123.56(exc. VAT)
  • RS Stock No. 252-3597
  • Mfr. Part No. 49830199
Each
£71.20(exc. VAT)
  • RS Stock No. 147-993
  • Mfr. Part No. 3VA5217-5EC41-2AA0
Each
£1,066.16(exc. VAT)
  • RS Stock No. 141-267
  • Mfr. Part No. 2CCS864001R0201
Each
£321.96(exc. VAT)
  • RS Stock No. 825-5661
  • Mfr. Part No. P1MB2PB02
Each
£50.99(exc. VAT)
  • RS Stock No. 244-773
  • Mfr. Part No. 138362 AKU-M8/10
1 Pack of 20
£222.79(exc. VAT)
  • RS Stock No. 703-8774P
  • Mfr. Part No. 16NHG000B-690
Each (Supplied in a Box)
£6.33(exc. VAT)
  • RS Stock No. 517-594
  • Mfr. Part No. 1344361
Each
£76.14(exc. VAT)
  • RS Stock No. 205-373
  • Mfr. Part No. A9C63425
Each
£1,219.24(exc. VAT)
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