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. 225-6103
  • Mfr. Part No. 2CSF202101R2250 F202 A-25/0.1
Each
£137.60(exc. VAT)
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  • Mfr. Part No. MF-LSMF185/24X-2
Each (On a Tape of 10)
£0.497(exc. VAT)
Better World
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  • Mfr. Part No. 1SDA068069R1 XT3N 250 TMD 200A FF
Each
£697.43(exc. VAT)
  • RS Stock No. 585-483
  • Mfr. Part No. A9XPH316
1 Pack of 5
£313.74(exc. VAT)
Better World
  • RS Stock No. 776-2746
  • Mfr. Part No. A9XPH457
Each
£295.31(exc. VAT)
  • RS Stock No. 136-0541
  • Mfr. Part No. A1014576 / FR10GR69V10
Each (In a Box of 10)
£7.096(exc. VAT)
  • RS Stock No. 173-7976
  • Mfr. Part No. 0031.2520
Each (In a Box of 25)
£17.524(exc. VAT)
  • RS Stock No. 521-2719
Each
£33.70(exc. VAT)
  • RS Stock No. 258-6365
  • Mfr. Part No. HC82AY-1
Each (In a Pack of 10)
£0.653(exc. VAT)
Better World
  • RS Stock No. 211-6015
  • Mfr. Part No. 3VA1140-5EF32-0AA0
Each
£226.45(exc. VAT)
  • RS Stock No. 270-3004
  • Mfr. Part No. A233450
Each (In a Box of 10)
£0.627(exc. VAT)
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  • Mfr. Part No. TPN14
Each
£469.60(exc. VAT)
Better World
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  • Mfr. Part No. QO132B10RCBO30F
Each
£359.03(exc. VAT)
Better World
  • RS Stock No. 191-6124
  • Mfr. Part No. A9P34732
Each
£245.10(exc. VAT)
  • RS Stock No. 435-291
  • Mfr. Part No. 2CCG001214R0001
Each
£96.68(exc. VAT)
Better World
  • RS Stock No. 150-4184
  • Mfr. Part No. 5SU1354-7KK08
Each
£121.32(exc. VAT)
  • RS Stock No. 539-3802
  • Mfr. Part No. 0034.9871
Each
£155.52(exc. VAT)
  • RS Stock No. 246-1869
  • Mfr. Part No. 1SKB106142C2001
Each
£86.96(exc. VAT)
  • RS Stock No. 703-2767P
  • Mfr. Part No. 3404.2420.22
Each (Supplied on a Reel)
£1.031(exc. VAT)
  • RS Stock No. 610-9721
Each (In a Pack of 10)
£0.34(exc. VAT)
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