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

35393 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
SIBA 8A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 783-3380
  • Mfr. Part No. 70-059-60/8A
Subtotal (1 pack of 10 units)
$4.70(exc. GST)
$0.47/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6651
  • Mfr. Part No. A9F44102
Subtotal (1 unit)
$19.17(exc. GST)
$19.17/unit
In Stock
Clipsal Electrical Residual Current Circuit Breaker with Overload Protection, 10A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 282-2969
  • Mfr. Part No. MX9R3110
Subtotal (1 unit)
$69.88(exc. GST)
$69.88/unit
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8530
Subtotal (1 unit)
$186.64(exc. GST)
$186.64/unit
In Stock
Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 6A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Subtotal (1 unit)
$22.47(exc. GST)
$22.47/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)
$28.69(exc. GST)
$2.869/unit
In Stock
Littelfuse 10A Red Car Fuse, 32V dc
  • RS Stock No. 787-4101
  • Mfr. Part No. 0287010.PXCN
Subtotal (1 pack of 10 units)
$6.55(exc. GST)
$0.655/unit
In Stock
RS PRO 1 Phase Industrial Surge Protector, 10 kA, 1.1 kV, DIN Rail
  • RS Stock No. 101-748
Subtotal (1 unit)
$62.42(exc. GST)
$62.42/unit
In Stock
Littelfuse 10A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4561
  • Mfr. Part No. 0216010.MXP
Subtotal (1 pack of 10 units)
$23.90(exc. GST)
$2.39/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$48.11(exc. GST)
$48.11/unit
Being discontinued
RS PRO 2A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-431
Subtotal (1 pack of 10 units)
$9.84(exc. GST)
$0.984/unit
In Stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5975
Subtotal (1 pack of 10 units)
$8.82(exc. GST)
$0.882/unit
In Stock
RS PRO 8A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-497
Subtotal (1 pack of 10 units)
$4.81(exc. GST)
$0.481/unit
In Stock
Eaton 25A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-266
  • Mfr. Part No. C10G25 CYLINDRICAL FUSE 10 x 38 25A GG 500V AC
Subtotal (1 pack of 10 units)
$20.32(exc. GST)
$20.32/pack
In Stock
TE Connectivity W57 Thermal Circuit Breaker - 1-Pole, Direct, 20A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-7830
  • Mfr. Part No. W57-XB1A7A10-20
Subtotal (1 unit)
$9.05(exc. GST)
$9.05/unit
In Stock
Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 25A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8869
  • Mfr. Part No. A9F44125
Subtotal (1 unit)
$23.60(exc. GST)
$23.60/unit
In Stock
Littelfuse 2A Grey Car Fuse, 32V dc
  • RS Stock No. 787-4126
  • Mfr. Part No. 0287002.PXCN
Subtotal (1 pack of 10 units)
$6.87(exc. GST)
$0.687/unit
In Stock
Electro PJP AdaBV140 Adapter for use with Screw Terminal Block
  • RS Stock No. 275-3341
  • Mfr. Part No. AdaBV140-N
Subtotal (1 unit)
$10.85(exc. GST)
$10.85/unit
In Stock
SIBA 6.3A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 418-9595
  • Mfr. Part No. 70-059-61 6.3A
Subtotal (1 pack of 10 units)
$12.92(exc. GST)
$1.292/unit
In Stock
Littelfuse 3A Purple Car Fuse, 32V dc
  • RS Stock No. 787-4142
  • Mfr. Part No. 0287003.PXCN
Subtotal (1 pack of 10 units)
$6.48(exc. GST)
$0.648/unit
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