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

34933 Products showing for Fuses & Circuit Breakers

5 of 999+
Schneider Electric Acti 9 iC60N MCB, 3P, 10A Curve C
  • RS Stock No. 230-6664
  • Mfr. Part No. A9F44310
Each
$71.82(exc. GST)
Siemens ALPHA Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Each
$46.42(exc. GST)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 2A Curve C, 250V DC
  • RS Stock No. 772-1505
  • Mfr. Part No. A9N61502
Each
$103.74(exc. GST)
Eaton 25A Slow-Blow Cartridge Fuse, 10 x 38mm
  • RS Stock No. 229-105
  • Mfr. Part No. C10M25 CYLINDRICAL FUSE 10 x 38 25A AM 400V AC
1 Pack of 10
$27.62(exc. GST)
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9968
  • Mfr. Part No. A9DX3732
Each
$1,081.30(exc. GST)
SIBA 5A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 783-3374
  • Mfr. Part No. 70-059-60/5A
Each (In a Pack of 10)
$0.509(exc. GST)
Limitor Thermal Fuse +152°C 15 A, 250V ac
  • RS Stock No. 797-6058
  • Mfr. Part No. SF 150 R
Each (In a Pack of 10)
$2.585(exc. GST)
Eaton Z-SV for use with FAZ-NA Miniature Circuit Breaker, FAZ-RT Miniature Circuit Breaker
  • RS Stock No. 847-3709
  • Mfr. Part No. 104904 ZV-BS-UL
Each
$7.26(exc. GST)
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 284-5811
  • Mfr. Part No. 4400.0047
Each
$28.22(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7752
  • Mfr. Part No. C16F32D160
Each
$2,835.38(exc. GST)
Schneider Electric Acti9 1 Phase Distribution Board, 6 Way, 125 A
  • RS Stock No. 244-967
  • Mfr. Part No. SE125A6
Each
$288.82(exc. GST)
Littelfuse Inline Fuse Holder for ATO Fuse, 80V dc
  • RS Stock No. 787-4340P
  • Mfr. Part No. 178.6152.0001
Each (Supplied in a Bag)
$5.14(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Axial 1.5A, 125V ac
  • RS Stock No. 787-4334
  • Mfr. Part No. 025101.5MAT1L
Each (In a Pack of 5)
$1.656(exc. GST)
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 230-6646
  • Mfr. Part No. A9D61816
Each
$85.23(exc. GST)
Littelfuse 0.9A Resettable Fuse, 72V
  • RS Stock No. 517-6679P
  • Mfr. Part No. RXEF090
Each (Supplied in a Bag)
$0.665(exc. GST)
Eaton 1A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1458
  • Mfr. Part No. S505-1-R
Each (In a Pack of 10)
$0.699(exc. GST)
Littelfuse SMD Non Resettable Fuse 5A, 125V ac/dc
  • RS Stock No. 541-3445
  • Mfr. Part No. 0451005.MRL
Each (In a Pack of 10)
$2.021(exc. GST)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V Voltage Rating DIN Rail Mount, 25A Current
  • RS Stock No. 272-814
  • Mfr. Part No. GV3L25
Each
$966.90(exc. GST)
RS PRO 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 563-570
Each (In a Pack of 10)
$0.476(exc. GST)
Littelfuse 30A Inline Fuse Holder for ATO Fuse, 32V dc
  • RS Stock No. 419-195
  • Mfr. Part No. 0FHA0002ZXJ
Each (In a Pack of 5)
$9.726(exc. GST)
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