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

627 of 999+
  • RS Stock No. 707-6767
  • Mfr. Part No. F0402E0R25FSTR
Each (In a Pack of 10)
£0.242(exc. VAT)
  • RS Stock No. 260-7468
  • Mfr. Part No. C10V3TM080
Each
£951.26(exc. VAT)
Better World
  • RS Stock No. 271-9614
  • Mfr. Part No. 3VA10802ED320AA0
Each
£160.76(exc. VAT)
  • RS Stock No. 787-4218
  • Mfr. Part No. 1812L050PR
Each (In a Pack of 10)
£0.219(exc. VAT)
  • RS Stock No. 765-2958
  • Mfr. Part No. SD3-D
Each
£41.08(exc. VAT)
Better World
  • RS Stock No. 216-4784
  • Mfr. Part No. 5SY4604-7
Each
£146.03(exc. VAT)
  • RS Stock No. 231-9294
  • Mfr. Part No. 1SDA074167R1 EKIP 2K-1 E1.2..E6.2-Tmax
Each
£118.98(exc. VAT)
  • RS Stock No. 218-8797
  • Mfr. Part No. 1492-SPM2C080
Each
£44.03(exc. VAT)
  • RS Stock No. 759-4785
  • Mfr. Part No. ERBRE2R00V
Each (In a Pack of 10)
£0.146(exc. VAT)
  • RS Stock No. 233-0601
  • Mfr. Part No. BK2-S-4202-1-R
1 Box of 2000
£2,211.02(exc. VAT)
  • RS Stock No. 866-3066
  • Mfr. Part No. 0001.1010
Each (In a Pack of 50)
£0.462(exc. VAT)
  • RS Stock No. 203-069
  • Mfr. Part No. 2CDS200908R0001
Each
£103.59(exc. VAT)
  • RS Stock No. 259-361
  • Mfr. Part No. 271072 Z-SV-16/3P
Each
£45.15(exc. VAT)
  • RS Stock No. 188-6647
  • Mfr. Part No. N084008
Each (In a Pack of 10)
£3.073(exc. VAT)
  • RS Stock No. 132-631
  • Mfr. Part No. 183571 IZMX16H4-V10W-1
Each
£6,746.81(exc. VAT)
  • RS Stock No. 647-8487P
  • Mfr. Part No. MF-R065
Each (Supplied in a Bag)
£0.251(exc. VAT)
  • RS Stock No. 225-6129
  • Mfr. Part No. 2CSF204101R2400 F204 A-40/0,1
Each
£152.75(exc. VAT)
  • RS Stock No. 353-137
  • Mfr. Part No. F-130
Each (In a Pack of 5)
£3.89(exc. VAT)
  • RS Stock No. 117-083
  • Mfr. Part No. FP 1415
Each
£288.75(exc. VAT)
  • RS Stock No. 263-656
  • Mfr. Part No. 3VA9343-0KD10
1 Kit
£312.96(exc. VAT)
Results per page