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

34958 Products showing for Fuses & Circuit Breakers

8 of 999+
Schneider Electric Acti 9 iC60N MCB, 3P, 25A Curve C
  • RS Stock No. 230-6667
  • Mfr. Part No. A9F44325
Each
$91.98(exc. GST)
SIBA 11A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 736-1431
  • Mfr. Part No. 50-199-06/11A
Each
$28.49(exc. GST)
Schurter CBE Thermal Circuit Breaker - TA35 2 Pole 240V ac Voltage Rating Snap-In, 20A Current Rating
  • RS Stock No. 269-3826
  • Mfr. Part No. 4435.0189
Each
$53.70(exc. GST)
Eaton 1.5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 848-2999
  • Mfr. Part No. GMA-1-5-R
Each
$1.00(exc. GST)
RS PRO 1A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-419
Each (In a Pack of 10)
$1.663(exc. GST)
Mersen 8A 5SF Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 816-8965
  • Mfr. Part No. W090524
Each (In a Pack of 10)
$1.252(exc. GST)
RS PRO 3.5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3417
Each (In a Pack of 10)
$1.096(exc. GST)
TE Connectivity Thermal Circuit Breaker - W54 Single Pole 250V ac Voltage Rating, 20A Current Rating
  • RS Stock No. 782-7988
  • Mfr. Part No. W54-XB1A4A10-20
Each
$9.25(exc. GST)
RS PRO 2.5A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6073
Each (In a Pack of 10)
$1.12(exc. GST)
RS PRO 4.5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3420
Each (In a Pack of 10)
$1.161(exc. GST)
RS PRO 6.3A Panel Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 563-784
Each
$8.47(exc. GST)
Mersen 125mA Time Lag Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 630-809
  • Mfr. Part No. G090534Q
1 Box of 10
$14.97(exc. GST)
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 405-9141
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-10A
Each
$50.80(exc. GST)
Wickmann 500mA T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 174-0644
  • Mfr. Part No. 0477.500MXP
Each (In a Pack of 5)
$3.012(exc. GST)
TE Connectivity Thermal Circuit Breaker - W54 Single Pole 250V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 782-7969
  • Mfr. Part No. W54-XB1A4A10-10
Each
$12.99(exc. GST)
Eaton 16A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 703-8399
  • Mfr. Part No. C10G16
Each (In a Pack of 10)
$2.547(exc. GST)
RS PRO 10A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-520
Each (In a Pack of 10)
$1.067(exc. GST)
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 15A Current Rating
  • RS Stock No. 333-287
  • Mfr. Part No. 201-15A
Each
$79.58(exc. GST)
RS PRO 15A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-4644
Each
$35.50(exc. GST)
Clipsal Electrical MAX9 MX9MC MCB, 3P, 20A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2951
  • Mfr. Part No. MX9MC320
Each
$52.06(exc. GST)
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