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

35053 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Subtotal (1 unit)
$19.54(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Subtotal (1 unit)
$19.54(exc. GST)
In Stock
ABB Plastic Consumer Unit, 63 A IP65 MISTRAL65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Subtotal (1 unit)
$53.86(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 25 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8869
  • Mfr. Part No. A9F44125
Subtotal (1 unit)
$20.52(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 2 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6651
  • Mfr. Part No. A9F44102
Subtotal (1 unit)
$18.61(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Subtotal (1 unit)
$13.47(exc. GST)
In Stock
Clipsal Electrical Residual Current Circuit Breaker with Overload Protection, 10 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 282-2969
  • Mfr. Part No. MX9R3110
Subtotal (1 unit)
$67.84(exc. GST)
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 440 V ac AC, 125 V dc DC, 10 kA Breaking
  • RS Stock No. 132-122
  • Mfr. Part No. 2CDS272001R0164 S202M-C16
Subtotal (1 unit)
$112.90(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 32 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8863
  • Mfr. Part No. A9F44132
Subtotal (1 unit)
$21.55(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - TA45 2 Pole 60 V dc, 240V ac Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 868-9030
  • Mfr. Part No. 4430.0022
Subtotal (1 unit)
$50.89(exc. GST)
In Stock
RS PRO 30A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 500V
  • RS Stock No. 242-0497
Subtotal (1 bag of 10 units)
$79.77(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6652
  • Mfr. Part No. A9F44104
Subtotal (1 unit)
$18.61(exc. GST)
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$48.11(exc. GST)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 50 A, Type C, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7784
  • Mfr. Part No. 2CDS253001R0504 S203-C50
Subtotal (1 unit)
$126.18(exc. GST)
In Stock
Clipsal Electrical Residual Current Circuit Breaker with Overload Protection, 20 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 282-2973
  • Mfr. Part No. MX9R3120
Subtotal (1 unit)
$136.26(exc. GST)
In Stock
RS PRO Fuse Kit
  • RS Stock No. 893-8530
Subtotal (1 unit)
$183.90(exc. GST)
In Stock
ABB RCCB, 40A, 4 Pole
  • RS Stock No. 189-5642
  • Mfr. Part No. 2CSF204023R1400 F204 AC-40/0,03-L
Subtotal (1 unit)
$161.23(exc. GST)
In Stock
Staubli 500 mA FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 564-645
  • Mfr. Part No. 69.0012
Subtotal (1 unit)
$5.40(exc. GST)
In Stock
ABB Earth & Neutral Terminal Bar for use with Miniature Circuit Breaker
  • RS Stock No. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
Subtotal (1 box of 1 unit)
$13.12(exc. GST)
In Stock
ETA ESS20 ESS20 Distribution Board 6 A
  • RS Stock No. 631-9136
  • Mfr. Part No. 17PLUS-Q02-00
Subtotal (1 unit)
$48.51(exc. GST)
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