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
Earth & Lightning Protection
Fuse Holders & Accessories
Fuses

37542 Products showing for Fuses & Circuit Breakers

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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)
$19.25(exc. GST)
$19.25/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Subtotal (1 unit)
$22.47(exc. GST)
$22.47/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
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 10A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6657
  • Mfr. Part No. A9F44210
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6653
  • Mfr. Part No. A9F44120
Subtotal (1 unit)
$19.17(exc. GST)
$19.17/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 72 V dc DC, 240 Breaking
  • RS Stock No. 435-913
  • Mfr. Part No. A9F44101
Subtotal (1 unit)
$30.78(exc. GST)
$30.78/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 16A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8866
  • Mfr. Part No. A9F44116
Subtotal (1 unit)
$21.40(exc. GST)
$21.40/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 230-6646
  • Mfr. Part No. A9D61816
Subtotal (1 unit)
$105.88(exc. GST)
$105.88/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 6A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6656
  • Mfr. Part No. A9F44206
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 2A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6654
  • Mfr. Part No. A9F44202
Subtotal (1 unit)
$74.10(exc. GST)
$74.10/unit
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8537
Subtotal (1 unit)
$246.90(exc. GST)
$246.90/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 63A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-6672
  • Mfr. Part No. A9F44363
Subtotal (1 unit)
$122.09(exc. GST)
$122.09/unit
In Stock
ABB 50A Centred Tag Fuse NH000 500V
  • RS Stock No. 779-9962
  • Mfr. Part No. OFAF000H50 1SCA022627R1210
Subtotal (1 unit)
$13.43(exc. GST)
$13.43/unit
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 6A, Type B, 253V ac AC, 72 V dc DC, 6
  • RS Stock No. 488-7457
  • Mfr. Part No. 2CDS251001R0065 - S201B6
Subtotal (1 unit)
$52.97(exc. GST)
$52.97/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 6A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-6663
  • Mfr. Part No. A9F44306
Subtotal (1 unit)
$95.69(exc. GST)
$95.69/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 230-6647
  • Mfr. Part No. A9D61820
Subtotal (1 unit)
$96.54(exc. GST)
$96.54/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 16A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6658
  • Mfr. Part No. A9F44216
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
ABB 12 Plastic Consumer Unit, 63A IP65 MISTRAL65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Subtotal (1 unit)
$75.99(exc. GST)
$75.99/unit
In Stock
RS PRO Fuse Kit
  • RS Stock No. 918-2697
Subtotal (1 unit)
$101.58(exc. GST)
$101.58/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$48.70(exc. GST)
$48.70/unit
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