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

49494 Products showing for Fuses & Circuit Breakers

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In Stock
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9816
Subtotal (1 pack of 10 units)
TWD193.00(exc. GST)
TWD19.30/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 3-Pole, 16A, Type D, 14 kA Breaking Capacity
  • RS Stock No. 211-2402
  • Mfr. Part No. M9F23316
Subtotal (1 unit)
TWD10,149.00(exc. GST)
TWD10,149.00/unit
In Stock
RS PRO 10A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 911-3445
Subtotal (1 pack of 10 units)
TWD151.00(exc. GST)
TWD15.10/unit
Temporarily out of stock
Eaton 250mA T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7102
  • Mfr. Part No. MDL-1-4-R
Subtotal (1 unit)
TWD279.00(exc. GST)
TWD279.00/unit
Being discontinued
Littelfuse Non-Resettable Fuse 6A, 24V
  • RS Stock No. 624-3017
  • Mfr. Part No. 1206SFF600F/24-2
Subtotal (1 pack of 10 units)
TWD109.00(exc. GST)
TWD10.90/unit
In Stock
ETA Thermal Overcurrent Circuit Breakers 2-5700 Thermal Circuit Breaker - 1-Pole, Panel, 7A Current Rating, 7 A, 250V
  • RS Stock No. 405-9135
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-7A
Subtotal (1 unit)
TWD1,226.00(exc. GST)
TWD1,226.00/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 16A, Type B, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2333
  • Mfr. Part No. M9F21116
Subtotal (1 unit)
TWD3,255.00(exc. GST)
TWD3,255.00/unit
Last RS stock
Schurter 3A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 865-7761
  • Mfr. Part No. 0034.3880
Subtotal (1 pack of 10 units)
TWD689.00(exc. GST)
TWD68.90/unit
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 32A, Type D, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1385
  • Mfr. Part No. 5SY4332-8
Subtotal (1 unit)
TWD6,469.00(exc. GST)
TWD6,469.00/unit
In Stock
Eaton 8A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8383
  • Mfr. Part No. C10G8
Subtotal (1 pack of 10 units)
TWD420.00(exc. GST)
TWD42.00/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 3-Pole, 20A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 211-2375
  • Mfr. Part No. M9F22320
Subtotal (1 unit)
TWD10,683.00(exc. GST)
TWD10,683.00/unit
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 1A, Type A, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 202-7133
  • Mfr. Part No. 5SY4101-5
Subtotal (1 unit)
TWD2,189.00(exc. GST)
TWD2,189.00/unit
Temporarily out of stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 13A, Type D, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2388
  • Mfr. Part No. M9F23113
Subtotal (1 unit)
TWD3,426.00(exc. GST)
TWD3,426.00/unit
Temporarily out of stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 20A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3168
  • Mfr. Part No. A9F53120
Subtotal (1 unit)
TWD4,032.00(exc. GST)
TWD4,032.00/unit
In Stock
Eaton 20A Panel Mount Fuse Holder, 1P-Pole for 5 x 20 mm, 25V
  • RS Stock No. 852-6951
  • Mfr. Part No. HTB-48I-R
Subtotal (1 unit)
TWD540.00(exc. GST)
TWD540.00/unit
Temporarily out of stock
Littelfuse Non-Resettable Fuse 160mA, 277 V ac, 277V dc
  • RS Stock No. 820-7221
  • Mfr. Part No. 0305.160H
Subtotal (1 unit)
TWD779.00(exc. GST)
TWD779.00/unit
Temporarily out of stock
Eaton 20A In-line Fuse Holder for 5 x 20 mm, 25V
  • RS Stock No. 849-5591
  • Mfr. Part No. HFA-R
Subtotal (1 unit)
TWD1,851.00(exc. GST)
TWD1,851.00/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 6A, Type B, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7558
  • Mfr. Part No. 2CDS252001R0065 S202-B6
Subtotal (1 unit)
TWD1,645.00(exc. GST)
TWD1,645.00/unit
In Stock
Mersen 6A AM Ceramic Cartridge Fuse, 8.5 x 31.5 mm
  • RS Stock No. 247-2714
  • Mfr. Part No. C222205 / FR8AM40V6
Subtotal (1 box of 10 units)
TWD438.00(exc. GST)
TWD438.00/box
Limited stock
RS PRO 6A British Standard Fuse F1 550V ac
  • RS Stock No. 521-2905
Subtotal (1 pack of 5 units)
TWD762.00(exc. GST)
TWD152.40/unit
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