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

46578 Products showing for Fuses & Circuit Breakers

316 / 999+
Temporarily out of stock
  • RS Stock No. 272-2286
  • Mfr. Part No. 219656 CI-K2-PKZ0-GRV
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MYR169.89
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MYR0.765
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  • Mfr. Part No. C1014578 / FR10GR69V12.5
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MYR74.30
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  • RS Stock No. 271-9553
  • Mfr. Part No. 3VA10102ED460AA0
Each
MYR2,676.53
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  • RS Stock No. 414-443
Each (In a Pack of 10)
MYR5.954
Temporarily out of stock
  • RS Stock No. 263-042
  • Mfr. Part No. 63/100CML
1 Pack of 10
MYR440.00
Temporarily out of stock
Better World
  • RS Stock No. 236-7475
  • Mfr. Part No. 1SDA067746R1 XT2S 160 TMG 100A FF
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MYR3,211.49
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MYR404.66
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Each (In a Pack of 5)
MYR50.292
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  • RS Stock No. 127-484
  • Mfr. Part No. 183345 IZMX16B3-V16W-1
Each
MYR48,277.77
Temporarily out of stock
Better World
  • RS Stock No. 744-6970
  • Mfr. Part No. LAD703E
Each
MYR388.61
Temporarily out of stock
Better World
  • RS Stock No. 211-6004
  • Mfr. Part No. 3VA1125-5EE32-0AA0
Each
MYR1,847.54
Temporarily out of stock
  • RS Stock No. 231-9950
  • Mfr. Part No. 2CSR255180R1324 DS201 C32 A30
1 Box of 1
MYR1,211.13
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  • RS Stock No. 121-189
  • Mfr. Part No. 155417 NZML3-VE400-AVE
Each
MYR21,131.63
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MYR14.70
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Each
MYR402.53
Temporarily out of stock
  • RS Stock No. 270-3128
  • Mfr. Part No. V236044
Each
MYR93.72
In Stock
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  • Mfr. Part No. 2CCS571001R0024 S401M-C2
Each
MYR245.83
Temporarily out of stock
  • RS Stock No. 211-6104
  • Mfr. Part No. 8GB5036-4KM
Each
MYR386.63
Temporarily out of stock
Better World
  • RS Stock No. 209-6886
  • Mfr. Part No. 3VA2010-6HN32-0AA0
Each
MYR4,591.75
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