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

49476 Products showing for Fuses & Circuit Breakers

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In Stock
RS PRO 4A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 721-1579
Subtotal (1 pack of 10 units)
TWD632.00(exc. GST)
TWD63.20/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
SIBA 315mA FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 736-1412
  • Mfr. Part No. 70-172-40/0.315A
Subtotal (1 unit)
TWD227.00(exc. GST)
TWD227.00/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
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
Eaton 63A British Standard Fuse FE 690V ac, 63.5 mm
  • RS Stock No. 156-8973
  • Mfr. Part No. 63FE
Subtotal (1 unit)
TWD5,725.00(exc. GST)
TWD5,725.00/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
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, 277V ac/dc
  • RS Stock No. 820-7221
  • Mfr. Part No. 0305.160H
Subtotal (1 unit)
TWD779.00(exc. GST)
TWD779.00/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
Temporarily out of stock
Wickmann 5A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 174-0256
  • Mfr. Part No. 0312005.MXP
Subtotal (1 box of 1000 units)
TWD10,992.00(exc. GST)
TWD10,992.00/box
In Stock
Bulgin 6.3A PCB Mount Fuse Holder for 5 x 20 mm, 250V ac
  • RS Stock No. 417-098
  • Mfr. Part No. FX0321
Subtotal (1 pack of 5 units)
TWD661.00(exc. GST)
TWD132.20/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
In Stock
Eaton 120A British Standard Fuse FEE 690V, 70 mm
  • RS Stock No. 156-9027
  • Mfr. Part No. 120FEE
Subtotal (1 unit)
TWD11,106.00(exc. GST)
TWD11,106.00/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
Littelfuse Non-Resettable Fuse 4A, 125V ac/dc
  • RS Stock No. 541-3669
  • Mfr. Part No. 0452004.MRL
Subtotal (1 pack of 10 units)
TWD846.00(exc. GST)
TWD84.60/unit
In Stock
Schneider Electric Acti9 Acti9 iDT40K Miniature Circuit Breaker, 1-Pole, 16A, Type C, 230V ac AC, 4500 A Breaking
  • RS Stock No. 238-3412
  • Mfr. Part No. A9P71616
Subtotal (1 unit)
TWD978.00(exc. GST)
TWD978.00/unit
In Stock
Phoenix Contact TCP 6A Thermal Circuit Breaker - 1-Pole, Base, 6A Current Rating, 250V ac, 65 V dc
  • RS Stock No. 801-6918
  • Mfr. Part No. 0712275
Subtotal (1 unit)
TWD557.00(exc. GST)
TWD557.00/unit
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