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

37231 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
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 PRO 30A Rail Mount Fuse Holder
  • RS Stock No. 242-0497
Subtotal (1 bag of 10 units)
$85.20(exc. GST)
$85.20/bag
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 10A, Type K, 253V ac AC, 72 V dc DC, 6
  • RS Stock No. 514-0131
  • Mfr. Part No. 2CDS251001R0427 S201-K10
Subtotal (1 unit)
$60.95(exc. GST)
$60.95/unit
In Stock
Eaton 32A gG/gL Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 228-669
  • Mfr. Part No. C14G32
Subtotal (1 pack of 10 units)
$39.99(exc. GST)
$39.99/pack
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
In Stock
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
RS PRO Miniature Circuit Breaker, 2-Pole, 10A, Type B, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0159
Subtotal (1 unit)
$22.74(exc. GST)
$22.74/unit
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 3-Pole, 20A, Type B, 440V ac AC, 12 V dc DC, 10 kA Breaking
  • RS Stock No. 535-6106
  • Mfr. Part No. 2CDS273001R0205 S203M-B20
Subtotal (1 unit)
$227.96(exc. GST)
$227.96/unit
In Stock
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
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 4A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-6662
  • Mfr. Part No. A9F44304
Subtotal (1 unit)
$88.93(exc. GST)
$88.93/unit
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 25A, Type C, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1262
  • Mfr. Part No. 5SY4125-7
Subtotal (1 unit)
$93.19(exc. GST)
$93.19/unit
In Stock
Eaton 2A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
$22.49(exc. GST)
$22.49/pack
In Stock
Eaton 1A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 228-660
  • Mfr. Part No. C10G1 CYLINDRICAL FUSE 10 x 38 1A GG 500V AC
Subtotal (1 pack of 10 units)
$24.34(exc. GST)
$24.34/pack
In Stock
RS PRO 32A British Standard Fuse A2 550V ac, 73 mm
  • RS Stock No. 521-2624
Subtotal (1 pack of 5 units)
$67.97(exc. GST)
$13.594/unit
In Stock
RS PRO Rail Mount Fuse Holder for 5 x 25 mm, 24V
  • RS Stock No. 501-871
Subtotal (1 unit)
$31.60(exc. GST)
$31.60/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
RS PRO Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0188
Subtotal (1 unit)
$9.03(exc. GST)
$9.03/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
Eaton 4A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 228-662
  • Mfr. Part No. C10G4
Subtotal (1 pack of 10 units)
$68.34(exc. GST)
$68.34/pack
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