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

35363 Products showing for Fuses & Circuit Breakers

4 of 999+
In Stock
Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 32A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8863
  • Mfr. Part No. A9F44132
Subtotal (1 unit)
$28.38(exc. GST)
$28.38/unit
Temporarily out of stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 16A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-6665
  • Mfr. Part No. A9F44316
Subtotal (1 unit)
$71.82(exc. GST)
$71.82/unit
Being discontinued
RS PRO 630mA F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-665
Subtotal (1 pack of 10 units)
$12.44(exc. GST)
$1.244/unit
In Stock
Schurter 3.15A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 830-4230
  • Mfr. Part No. 8020.5016.G
Subtotal (1 pack of 10 units)
$17.43(exc. GST)
$1.743/unit
In Stock
Littelfuse 400mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4331
  • Mfr. Part No. 0217.400MXP
Subtotal (1 pack of 10 units)
$6.90(exc. GST)
$0.69/unit
Temporarily out of stock
ABB SN201 Miniature Circuit Breaker, 1-Pole, 6A, Type C, 230V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 186-3484
  • Mfr. Part No. 2CSS255102R0064 SN201 C6-L
Subtotal (1 unit)
$74.89(exc. GST)
$74.89/unit
In Stock
Mersen 20A F GMG Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 914-4411
  • Mfr. Part No. ATMR20
Subtotal (1 unit)
$80.67(exc. GST)
$80.67/unit
In Stock
Eaton 15A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 848-2687
  • Mfr. Part No. ABC-15-R
Subtotal (1 unit)
$2.66(exc. GST)
$2.66/unit
In Stock
RS PRO 630mA T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-352
Subtotal (1 pack of 10 units)
$12.17(exc. GST)
$1.217/unit
In Stock
RS PRO 6.3A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-396
Subtotal (1 pack of 10 units)
$12.63(exc. GST)
$1.263/unit
Temporarily out of stock
Better World
Schneider Electric, PowerPact, Compact NSXm Molded Case Circuit Breaker 160A
  • RS Stock No. 178-7877
  • Mfr. Part No. LV426920
Subtotal (1 unit)
$91.88(exc. GST)
$91.88/unit
In Stock
SIBA 20A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 768-6125
  • Mfr. Part No. 5021526.20
Subtotal (1 unit)
$60.03(exc. GST)
$60.03/unit
In Stock
Eaton 4A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8370P
  • Mfr. Part No. C10G4
Subtotal 10 units (supplied in a box)
$30.94(exc. GST)
$3.094/unit
Stocked by manufacturer
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 10A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 654-775
  • Mfr. Part No. A9D73610
Subtotal (1 unit)
$723.28(exc. GST)
$723.28/unit
In Stock
Eaton 20A T Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 849-5692
  • Mfr. Part No. SC-20
Subtotal (1 unit)
$47.69(exc. GST)
$47.69/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$46.42(exc. GST)
$46.42/unit
In Stock
RS PRO 2.5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 911-3499
Subtotal (1 pack of 10 units)
$6.38(exc. GST)
$0.638/unit
Stocked by manufacturer
Eaton 20 A Fuse Holder for 25.4 x 13 x 50 mm, 550 V ac
  • RS Stock No. 263-118
  • Mfr. Part No. SSC/LINK
Subtotal (1 pack of 10 units)
$42.46(exc. GST)
$42.46/pack
In Stock
Eaton 63 A British Standard Fuse F2 550 V ac
  • RS Stock No. 122-9606
  • Mfr. Part No. ESD63
Subtotal (1 pack of 5 units)
$45.52(exc. GST)
$9.104/unit
In Stock
ETI 16A D01 Neozed Fuse, E14 Thread Size, 400V ac
  • RS Stock No. 415-979
  • Mfr. Part No. 2211005
Subtotal (1 pack of 5 units)
$15.62(exc. GST)
$3.124/unit
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