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

46580 Products showing for Fuses & Circuit Breakers

61 / 999+
  • RS Stock No. 210-2062
  • Mfr. Part No. 3120-N521-H7T1-W01D-10A
Each
MYR206.12
  • RS Stock No. 563-615
Each (In a Pack of 10)
MYR2.194
  • RS Stock No. 413-743
  • Mfr. Part No. 2313401
Each (In a Pack of 5)
MYR7.722
  • RS Stock No. 725-8029
  • Mfr. Part No. 0213.315MXP
Each (In a Bag of 10)
MYR3.624
  • RS Stock No. 169-9407
  • Mfr. Part No. S500-500-R
1 Bag of 1000
MYR1,489.60
  • RS Stock No. 259-853
  • Mfr. Part No. 288943 Z-D02/SE-35
1 Pack of 12
MYR28.60
  • RS Stock No. 182-1495
  • Mfr. Part No. 355MMT
Each
MYR872.13
  • RS Stock No. 415-092
  • Mfr. Part No. RS200H
Each
MYR1,416.37
  • RS Stock No. 269-8379
  • Mfr. Part No. 3NW7111
Each
MYR118.11
  • RS Stock No. 182-1536
  • Mfr. Part No. CH141DMSU-F
Each (In a Box of 6)
MYR162.395
  • RS Stock No. 764-9466P
Each (Supplied on a Reel)
MYR2.516
Better World
  • RS Stock No. 248-3699
  • Mfr. Part No. A9R34491
Each
MYR2,679.22
  • RS Stock No. 225-8212
  • Mfr. Part No. BK-HVI-R
1 Bag of 20
MYR4,138.67
  • RS Stock No. 232-0024
  • Mfr. Part No. GJI2320072R0017 SZ-KLB 16
1 Box of 1
MYR64.53
Better World
  • RS Stock No. 221-0897
  • Mfr. Part No. BDL36060LU
Each
MYR1,961.83
  • RS Stock No. 339-518
  • Mfr. Part No. C10M1TM063
Each
MYR1,729.47
  • RS Stock No. 252-2156
Each (On a Tape of 4000)
MYR1.079
  • RS Stock No. 624-0383
  • Mfr. Part No. 278865 FAZ-C4/3
Each
MYR692.92
  • RS Stock No. 849-5563
  • Mfr. Part No. HVJ-1-8
Each
MYR409.14
  • RS Stock No. 221-1213
  • Mfr. Part No. LV429483
Each
MYR1,278.38
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