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

531 of 999+
  • RS Stock No. 282-6182
  • Mfr. Part No. BSF-160G-NH110-B
Each
£131.90(exc. VAT)
  • RS Stock No. 259-3342
  • Mfr. Part No. 1SDA071248R1
Each
£23,261.73(exc. VAT)
  • RS Stock No. 517-7206
  • Mfr. Part No. MICROSMD005F-2
Each (In a Pack of 20)
£0.356(exc. VAT)
  • RS Stock No. 148-331
  • Mfr. Part No. 3VA5130-6EC31-0AA0
Each
£258.38(exc. VAT)
  • RS Stock No. 212-8856
  • Mfr. Part No. 5SJ4210-7HG42
Each
£93.27(exc. VAT)
Better World
  • RS Stock No. 211-8756
  • Mfr. Part No. AK5PA211PH13
Each
£41.77(exc. VAT)
  • RS Stock No. 266-642
  • Mfr. Part No. 3VW9011-0AT07
Each
£189.79(exc. VAT)
  • RS Stock No. 229-193
  • Mfr. Part No. C14G6S CYL FUSE >STR >14 x 51 6A GG 690V AC
1 Pack of 10
£57.58(exc. VAT)
  • RS Stock No. 210-2137
  • Mfr. Part No. ESX10-TB-102-DC24V-10A-E
Each
£94.36(exc. VAT)
  • RS Stock No. 258-346
  • Mfr. Part No. 278715 FAZ-K32/1N
Each
£85.03(exc. VAT)
  • RS Stock No. 830-4284P
  • Mfr. Part No. 4404.0097
Each (Supplied in a Bag)
£3.27(exc. VAT)
  • RS Stock No. 287-6393
  • Mfr. Part No. 2CDS273337R0104
Each
£102.33(exc. VAT)
  • RS Stock No. 203-025
  • Mfr. Part No. 2CDS381001R0487
Each
£38.51(exc. VAT)
Better World
  • RS Stock No. 156-747
  • Mfr. Part No. 3VA2450-7MP32-0AA0
Each
£2,376.30(exc. VAT)
Better World
  • RS Stock No. 160-730
  • Mfr. Part No. 3RV2311-1AC20
Each
£63.46(exc. VAT)
  • RS Stock No. 341-234
  • Mfr. Part No. C7AFM
Each
£2,093.42(exc. VAT)
Better World
  • RS Stock No. 216-4776
  • Mfr. Part No. 5SL6314-7
Each
£77.12(exc. VAT)
Better World
  • RS Stock No. 210-9379
  • Mfr. Part No. 3VA9383-0JB13
Each
£90.42(exc. VAT)
  • RS Stock No. 247-504
  • Mfr. Part No. 168833 BB-EVF-16/N-1,5MU
Each
£35.20(exc. VAT)
  • RS Stock No. 167-7134
  • Mfr. Part No. 70103470
Each (In a Pack of 10)
£0.824(exc. VAT)
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