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. 210-2124
  • Mfr. Part No. ESX10-TA-100-DC24V-2A-E
Each
£73.37(exc. VAT)
  • RS Stock No. 412-554A
  • Mfr. Part No. TDC180-2A
Each (In a Pack of 100)
£0.233(exc. VAT)
  • RS Stock No. 254-048
  • Mfr. Part No. 269246 NZMB2-S80-CNA
Each
£466.84(exc. VAT)
  • RS Stock No. 176-784
  • Mfr. Part No. 2CCS553001R0065 - S403EB6
Each
£135.06(exc. VAT)
  • RS Stock No. 259-3422
  • Mfr. Part No. 1SDA071356R1
Each
£5,455.57(exc. VAT)
  • RS Stock No. 257-077
  • Mfr. Part No. 281304 NZMH2-M63
Each
£438.78(exc. VAT)
  • RS Stock No. 218-8620
  • Mfr. Part No. 1492-GS2G020-H1
Each
£185.14(exc. VAT)
  • RS Stock No. 312-3689
  • Mfr. Part No. GB2CB12
Each
£27.45(exc. VAT)
  • RS Stock No. 299-775
  • Mfr. Part No. 5SJ4304-8HG42
Each
£269.60(exc. VAT)
  • RS Stock No. 270-7980
  • Mfr. Part No. PFRA.050
Each
£0.68(exc. VAT)
  • RS Stock No. 136-0489
  • Mfr. Part No. W1002129 / 1.000.504
1 Box of 1
£322.60(exc. VAT)
  • RS Stock No. 184-9040
  • Mfr. Part No. CPB1032B3
Each
£14.68(exc. VAT)
  • RS Stock No. 256-050
  • Mfr. Part No. 265739 NZMN2-S125
Each
£713.44(exc. VAT)
Better World
  • RS Stock No. 259-9918
  • Mfr. Part No. 1SDA070766R1
Each
£4,647.85(exc. VAT)
  • RS Stock No. 628-8032
  • Mfr. Part No. 259092 NZMN2-A160
1 Box of 1
£602.16(exc. VAT)
Better World
  • RS Stock No. 249-269
  • Mfr. Part No. 3VA6460-5JP31-0AA0
Each
£2,379.23(exc. VAT)
  • RS Stock No. 287-9622
  • Mfr. Part No. 1250A-1S-480
Each
£127.66(exc. VAT)
  • RS Stock No. 239-5011
  • Mfr. Part No. 1016812
Each
£243.88(exc. VAT)
  • RS Stock No. 664-337
  • Mfr. Part No. 5SY8663-7
Each
£414.98(exc. VAT)
  • RS Stock No. 255-669
  • Mfr. Part No. 269286 NZMH3-AEF400-NA
Each
£2,490.65(exc. VAT)
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