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

242 / 999+
Better World
  • RS Stock No. 245-477
  • Mfr. Part No. 3VA6210-5JQ31-0AA0
Each
MYR16,186.76
  • RS Stock No. 421-801
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MYR2.496
  • RS Stock No. 768-3772
  • Mfr. Part No. S229878
Each
MYR1,028.94
Better World
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Each
MYR9,867.55
  • RS Stock No. 248-695
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1 Pack of 2
MYR501.53
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  • Mfr. Part No. P1MB4PB32
Each
MYR646.32
  • RS Stock No. 244-490
  • Mfr. Part No. 184275 +IZMX-STS24DC-1
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MYR1,694.72
Better World
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  • Mfr. Part No. 3VA1125-5EE46-0AA0
Each
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Better World
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Each (In a Pack of 10)
MYR4.709
Better World
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Better World
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MYR259.557
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  • Mfr. Part No. 100KR85
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Better World
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MYR638.96
  • RS Stock No. 201-634
  • Mfr. Part No. 1STQ001020A0000
Each
MYR2,952.14
  • RS Stock No. 589-856
  • Mfr. Part No. A9R11280
Each
MYR1,561.89
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