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. 120-990
  • Mfr. Part No. 168273 FRBDM-D6/1N/003-G/A
Each
£141.08(exc. VAT)
  • RS Stock No. 163-279
  • Mfr. Part No. 5SD611
1 Pack of 5
£145.11(exc. VAT)
  • RS Stock No. 121-803
  • Mfr. Part No. 144908 NZM1-XHB-DAR-V6-NA
Each
£291.56(exc. VAT)
  • RS Stock No. 288-7105
  • Mfr. Part No. A9L16282
Each
£706.83(exc. VAT)
  • RS Stock No. 738-2797
  • Mfr. Part No. 0218002.MXP
Each (In a Pack of 10)
£0.854(exc. VAT)
  • RS Stock No. 184-9064
  • Mfr. Part No. CPBBL
Each
£1.00(exc. VAT)
Better World
  • RS Stock No. 209-6046
  • Mfr. Part No. 5SY7363-7
Each
£218.69(exc. VAT)
  • RS Stock No. 266-1368
  • Mfr. Part No. 412214
Each
£701.57(exc. VAT)
  • RS Stock No. 417-341
  • Mfr. Part No. C1520
Each (In a Pack of 5)
£1.202(exc. VAT)
  • RS Stock No. 849-5541
  • Mfr. Part No. GDC-2A
Each
£1.21(exc. VAT)
  • RS Stock No. 237-6209
  • Mfr. Part No. 1SDA067007R1 XT2N 160 TMD 8A FF
Each
£237.99(exc. VAT)
  • RS Stock No. 140-586
  • Mfr. Part No. 2CCS894001R0405
Each
£239.33(exc. VAT)
  • RS Stock No. 610-3868
  • Mfr. Part No. 2CSB203101R1250 - DDA203A-25/0.03
Each
£96.61(exc. VAT)
  • RS Stock No. 188-1754
  • Mfr. Part No. T2C4011KIT
Each
£54.86(exc. VAT)
  • RS Stock No. 181-8451
  • Mfr. Part No. STD16
1 Box of 20
£65.04(exc. VAT)
  • RS Stock No. 848-4188
  • Mfr. Part No. LP-CC-15
Each
£48.65(exc. VAT)
Better World
  • RS Stock No. 746-7586
  • Mfr. Part No. 2CDS253001R0065 S203-B6
Each
£63.53(exc. VAT)
  • RS Stock No. 312-3796
  • Mfr. Part No. GB2DB08
Each
£63.57(exc. VAT)
  • RS Stock No. 237-6211
  • Mfr. Part No. 1SDA067013R1 XT2N 160 TMD 32A FF
Each
£274.60(exc. VAT)
Better World
  • RS Stock No. 200-6170
  • Mfr. Part No. A9PA2632
Each
£47.32(exc. VAT)
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