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.

50907 Products showing for Fuses & Circuit Breakers

526 of 999+
  • RS Stock No. 259-3767
  • Mfr. Part No. 1SDA071771R1
Each
£11,783.20(exc. VAT)
  • RS Stock No. 260-9543
  • Mfr. Part No. C10R45E100
Each
£2,517.21(exc. VAT)
  • RS Stock No. 101-739
Each
£72.06(exc. VAT)
  • RS Stock No. 270-3023
  • Mfr. Part No. D095568
Each (In a Box of 10)
£0.723(exc. VAT)
Better World
  • RS Stock No. 209-5988
  • Mfr. Part No. 5SL4516-7
Each
£52.43(exc. VAT)
Better World
  • RS Stock No. 225-8832
  • Mfr. Part No. 5SV1616-7KK10
Each
£221.08(exc. VAT)
  • RS Stock No. 825-5876
  • Mfr. Part No. P1MB3PD04
Each
£80.04(exc. VAT)
  • RS Stock No. 156-514
  • Mfr. Part No. 3RW5950-0GL30
Each
£14.70(exc. VAT)
  • RS Stock No. 245-9148
  • Mfr. Part No. MF-LSMF200/24X-2
Each (On a Reel of 3000)
£0.346(exc. VAT)
  • RS Stock No. 692-5071
  • Mfr. Part No. SF-1206S700-2
Each (In a Pack of 10)
£0.313(exc. VAT)
  • RS Stock No. 233-0625
  • Mfr. Part No. BK-S-8203-1X-DIN
1 Box of 198
£789.52(exc. VAT)
  • RS Stock No. 849-6529
  • Mfr. Part No. EUC1P63C
Each
£6.92(exc. VAT)
  • RS Stock No. 225-6092
  • Mfr. Part No. 2CSF202001R2900 F202 AC-100/0.1
Each
£172.36(exc. VAT)
  • RS Stock No. 703-8645P
  • Mfr. Part No. 50NHG000B
Each (Supplied in a Bag)
£5.80(exc. VAT)
  • RS Stock No. 249-877
  • Mfr. Part No. 3VA6560-5HN46-0AA0
Each
£3,058.04(exc. VAT)
  • RS Stock No. 703-8419P
  • Mfr. Part No. C14G8
Each (Supplied in a Bag)
£1.896(exc. VAT)
Better World
  • RS Stock No. 209-7070
  • Mfr. Part No. 3VA2140-5HN46-0AA0
Each
£723.87(exc. VAT)
  • RS Stock No. 565-503
  • Mfr. Part No. 0242.040UR
Each
£1,106.88(exc. VAT)
  • RS Stock No. 282-4687
  • Mfr. Part No. 5SV3745-8
Each
£1,166.55(exc. VAT)
  • RS Stock No. 119-475
  • Mfr. Part No. C10N1TM040
Each
£170.99(exc. VAT)
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