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

49110 Products showing for Fuses & Circuit Breakers

28 of 999+
  • RS Stock No. 212-1941
  • Mfr. Part No. 3130-F120-P7T1-W02Q-3A
Each
SGD77.62(exc. GST)
Better World
  • RS Stock No. 791-3350
  • Mfr. Part No. A9F54232
Each
SGD249.60(exc. GST)
Better World
  • RS Stock No. 791-3290
  • Mfr. Part No. A9F54106
Each
SGD78.66(exc. GST)
  • RS Stock No. 135-551
  • Mfr. Part No. 0903032
Each (In a Pack of 6)
SGD136.202(exc. GST)
  • RS Stock No. 180-6109
  • Mfr. Part No. 0 130 06
Each (In a Box of 10)
SGD3.217(exc. GST)
  • RS Stock No. 247-3955
Each (In a Pack of 10)
SGD3.70(exc. GST)
  • RS Stock No. 201-330
  • Mfr. Part No. 2CDS383001R0134
Each
SGD236.17(exc. GST)
  • RS Stock No. 232-0191
  • Mfr. Part No. 1SDA066475R1 RHD XT1-XT3 F/P
Each
SGD163.99(exc. GST)
  • RS Stock No. 227-0729
  • Mfr. Part No. 264997 PFGM-40/4/01-G
Each
SGD492.44(exc. GST)
  • RS Stock No. 250-8615
  • Mfr. Part No. LF332G
Each (In a Pack of 10)
SGD4.416(exc. GST)
  • RS Stock No. 563-485
Each (In a Pack of 10)
SGD1.034(exc. GST)
  • RS Stock No. 563-744
Each (In a Pack of 10)
SGD1.043(exc. GST)
  • RS Stock No. 147-214
  • Mfr. Part No. 3VA5220-6EF31-0AA0
Each
SGD1,713.44(exc. GST)
  • RS Stock No. 769-3359
  • Mfr. Part No. SS-5-5A-BK
Each (In a Pack of 5)
SGD3.01(exc. GST)
Better World
  • RS Stock No. 211-2397
  • Mfr. Part No. M9F23220
Each
SGD55.33(exc. GST)
Better World
  • RS Stock No. 746-7719
  • Mfr. Part No. 2CDS252001R0104 S202-C10
Each
SGD94.17(exc. GST)
Better World
  • RS Stock No. 219-8276
  • Mfr. Part No. A9L40281
Each
SGD192.32(exc. GST)
  • RS Stock No. 183-3541
  • Mfr. Part No. 236949 PXK-B20/1N/003-A
Each
SGD121.53(exc. GST)
  • RS Stock No. 263-417
  • Mfr. Part No. TPL-BH
1 Pack of 5
SGD919.38(exc. GST)
  • RS Stock No. 602-211
  • Mfr. Part No. ADX482C
Each
SGD886.82(exc. GST)
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