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

46578 Products showing for Fuses & Circuit Breakers

301 / 999+
Temporarily out of stock
  • RS Stock No. 277-6239
  • Mfr. Part No. EEB08C506D1A
Each
MYR1,706.30
Temporarily out of stock
Better World
  • RS Stock No. 211-0367
  • Mfr. Part No. KBA40ZFG2
Each (In a Pack of 10)
MYR28.986
Temporarily out of stock
  • RS Stock No. 212-117
  • Mfr. Part No. LV833738
Each
MYR2,540.00
In Stock
Better World
  • RS Stock No. 205-2813
  • Mfr. Part No. A9XC2412
1 Bag of 12
MYR83.85
Temporarily out of stock
  • RS Stock No. 435-217
  • Mfr. Part No. 2CCG001217R0001
Each
MYR1,219.07
In Stock
  • RS Stock No. 167-697
  • Mfr. Part No. 5SD601
1 Pack of 5
MYR377.72
Temporarily out of stock
  • RS Stock No. 228-875
  • Mfr. Part No. CM63F
1 Pack of 10
MYR1,735.33
Temporarily out of stock
  • RS Stock No. 608-760
  • Mfr. Part No. 3NC3241-1U
1 Pack of 3
MYR3,249.79
In Stock
  • RS Stock No. 231-9327
  • Mfr. Part No. 1SDA100345R1 XT5N 400 TMA 400-4000 3pFF
Each
MYR5,027.57
Temporarily out of stock
Better World
  • RS Stock No. 209-6529
  • Mfr. Part No. 5SL4520-8
Each
MYR356.04
In Stock
  • RS Stock No. 169-9368
  • Mfr. Part No. TDC10-15A
1 Bag of 1000
MYR2,469.47
Temporarily out of stock
  • RS Stock No. 167-4371
  • Mfr. Part No. 0 127 25
Each (In a Pack of 10)
MYR19.848
In Stock
  • RS Stock No. 248-4112
  • Mfr. Part No. LV429390
Each
MYR718.24
In Stock
Better World
  • RS Stock No. 238-3475
  • Mfr. Part No. A9R77763
Each
MYR2,999.45
In Stock
Better World
  • RS Stock No. 231-9723
  • Mfr. Part No. 2CDS272001R0041 S202M D 4A - 15 KA
1 Box of 1
MYR362.84
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  • RS Stock No. 182-1429
  • Mfr. Part No. 200LMT
Each
MYR185.68
In Stock
  • RS Stock No. 897-8989P
  • Mfr. Part No. SF-0603S050-2
Each (Supplied on a Reel)
MYR2.505
In Stock
  • RS Stock No. 203-2514
  • Mfr. Part No. 3RK1901-1MD00
Each (In a Pack of 10)
MYR15.96
Temporarily out of stock
  • RS Stock No. 121-253
  • Mfr. Part No. 168257 FRBDM-C25/1N/001-G/A
Each
MYR1,062.30
Temporarily out of stock
  • RS Stock No. 246-2305
  • Mfr. Part No. 2CCF800219R0001
Each
MYR16.45
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