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.

50907 Products showing for Fuses & Circuit Breakers

568 of 999+
  • RS Stock No. 245-9249
  • Mfr. Part No. SF-1206SA150M-2
Each (On a Tape of 10)
£0.525(exc. VAT)
Better World
  • RS Stock No. 209-6829
  • Mfr. Part No. 3VA1150-3EF32-0AA0
Each
£189.42(exc. VAT)
  • RS Stock No. 246-2586
  • Mfr. Part No. 2CCS572001R0427
Each
£77.12(exc. VAT)
  • RS Stock No. 490-056
  • Mfr. Part No. 102884 PXF-100/4/05-A
Each
£643.30(exc. VAT)
  • RS Stock No. 414-724
  • Mfr. Part No. GSA10
Each (In a Pack of 5)
£20.472(exc. VAT)
  • RS Stock No. 138-679
  • Mfr. Part No. NANOSMDC050F/13.2-2
Each (In a Pack of 10)
£0.33(exc. VAT)
  • RS Stock No. 177-5066
  • Mfr. Part No. 2CSF202199R1630 F202 A-63/0,03 110V
Each
£188.12(exc. VAT)
  • RS Stock No. 111-3542
  • Mfr. Part No. PYDN-31.0-080Y
Each
£4.42(exc. VAT)
  • RS Stock No. 711-6506
  • Mfr. Part No. 1SAM201906R1104 PS1-4-0-65
Each
£15.89(exc. VAT)
  • RS Stock No. 247-074
  • Mfr. Part No. 100660 Z-SLS/TR-SET
Each
£31.89(exc. VAT)
  • RS Stock No. 260-9361
  • Mfr. Part No. C103TM063
Each
£124.80(exc. VAT)
  • RS Stock No. 265-1246
  • Mfr. Part No. 2569000
Each (In a Pack of 5)
£10.804(exc. VAT)
  • RS Stock No. 247-1899
  • Mfr. Part No. 48363
Each
£4,165.20(exc. VAT)
  • RS Stock No. 270-3040
  • Mfr. Part No. G090511
Each (In a Box of 10)
£0.505(exc. VAT)
  • RS Stock No. 270-3006
  • Mfr. Part No. B090506
Each (In a Box of 10)
£0.705(exc. VAT)
  • RS Stock No. 200-579
  • Mfr. Part No. 2CDS271103R0104
Each
£43.23(exc. VAT)
  • RS Stock No. 209-6420
  • Mfr. Part No. G1065688 / BLST24V10
Each (In a Pack of 10)
£2.772(exc. VAT)
  • RS Stock No. 121-162
  • Mfr. Part No. 167693 FRCMM-25/2/003-G/A-NA-110
Each
£142.67(exc. VAT)
Better World
  • RS Stock No. 539-8251
  • Mfr. Part No. 2CDS211001R0324 SH201-C32
Each
£14.75(exc. VAT)
  • RS Stock No. 263-042
  • Mfr. Part No. 63/100CML
1 Pack of 10
£63.04(exc. VAT)
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