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

47265 Products showing for Fuses & Circuit Breakers

114 of 999+
  • RS Stock No. 260-8058
  • Mfr. Part No. C25W46E100
Each
HK$44,702.68
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Each
HK$610.00
  • RS Stock No. 229-926
  • Mfr. Part No. 113331 NZMH2-A80-SVE
Each
HK$6,277.97
  • RS Stock No. 375-9597
  • Mfr. Part No. E213996C
Each (In a Pack of 3)
HK$71.167
  • RS Stock No. 767-5193
Each (In a Pack of 10)
HK$4.11
Better World
  • RS Stock No. 539-8302
  • Mfr. Part No. 2CDS213001R0205 SH203-B20
Each
HK$290.85
  • RS Stock No. 147-805
  • Mfr. Part No. 3VA5222-6EC31-0AA0
Each
HK$17,303.90
  • RS Stock No. 221-673
  • Mfr. Part No. RS20PH/G
Each
HK$221.40
  • RS Stock No. 201-493
  • Mfr. Part No. 1STQ007425A0000
Each
HK$25,291.86
Better World
  • RS Stock No. 210-3341
  • Mfr. Part No. 3VA2125-5HN32-0AA0
Each
HK$6,895.70
  • RS Stock No. 140-929
  • Mfr. Part No. 2CCS893001R0324
Each
HK$4,669.86
  • RS Stock No. 183-3636
  • Mfr. Part No. 2CSF204023R1250
Each
HK$1,129.89
  • RS Stock No. 703-8239
  • Mfr. Part No. PV-15A10F
Each
HK$281.70
  • RS Stock No. 225-5415
  • Mfr. Part No. 3NW1010-0HG
Each (In a Pack of 10)
HK$236.03
Better World
  • RS Stock No. 237-3323
  • Mfr. Part No. 2CDS254001R0378 S204 Z 6A - 10 KA
Each
HK$2,090.76
  • RS Stock No. 630-836
  • Mfr. Part No. P206070Q
1 Box of 10
HK$82.05
  • RS Stock No. 247-538
  • Mfr. Part No. 150683 DILM12-XSPR130
1 Pack of 10
HK$1,041.80
  • RS Stock No. 200-071
  • Mfr. Part No. 2CDS272061R0537
Each
HK$2,769.85
  • RS Stock No. 654-759
  • Mfr. Part No. IL1003P25
Each
HK$3,739.72
Better World
  • RS Stock No. 256-4054
  • Mfr. Part No. A9MEM1593
Each
HK$15,127.13
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