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

49552 Products showing for Fuses & Circuit Breakers

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Temporarily out of stock
ABB FH200 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type AC, 1 kA 230V ac
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
TWD2,356.00(exc. GST)
TWD2,356.00/unit
Temporarily out of stock
Mersen 1.25A Quick Acting Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 630-828
  • Mfr. Part No. M090516Q / MI5SF25V1.25/100
Subtotal (1 box of 10 units)
TWD217.00(exc. GST)
TWD217.00/box
In Stock
Eaton 4A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7086
  • Mfr. Part No. BK-MDA-4-R
Subtotal (1 unit)
TWD50.00(exc. GST)
TWD50.00/unit
In Stock
RS Better World
Siemens SENTRON 5SY Miniature Circuit Breaker, 1-Pole, 2A, Type A, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Subtotal (1 unit)
TWD2,442.00(exc. GST)
TWD2,442.00/unit
In Stock
Eaton 12A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8504
  • Mfr. Part No. C10M12
Subtotal (1 pack of 10 units)
TWD529.00(exc. GST)
TWD52.90/unit
In Stock
Littelfuse 6A M Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 769-0051
  • Mfr. Part No. 0234006.MXP
Subtotal (1 pack of 25 units)
TWD877.50(exc. GST)
TWD35.10/unit
In Stock
Eaton 5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 412-611
  • Mfr. Part No. TDC11-5A
Subtotal (1 pack of 10 units)
TWD1,996.00(exc. GST)
TWD199.60/unit
In Stock
Littelfuse 15A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 738-2829
  • Mfr. Part No. 0326015.MXP
Subtotal (1 pack of 10 units)
TWD635.00(exc. GST)
TWD63.50/unit
In Stock
Littelfuse 1A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0120
  • Mfr. Part No. 0312001.HXP
Subtotal (1 pack of 10 units)
TWD161.00(exc. GST)
TWD16.10/unit
Temporarily out of stock
Eaton 400mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 849-6020
  • Mfr. Part No. GDA-400MA
Subtotal (1 pack of 5 units)
TWD998.00(exc. GST)
TWD199.60/unit
Limited stock
Schneider Electric 50A Rail Mount Fuse Holder, 1P-Pole, 690V ac
  • RS Stock No. 482-897
  • Mfr. Part No. DF141
Subtotal (1 unit)
TWD1,050.00(exc. GST)
TWD1,050.00/unit
Currently unavailable
Mersen 16A FF Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 136-0475
  • Mfr. Part No. D1014579 / FR10GR69V16
Subtotal (1 box of 10 units)
TWD5,028.00(exc. GST)
TWD502.80/unit
In Stock
Eaton 10A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 848-2680
  • Mfr. Part No. ABC-10-R
Subtotal (1 unit)
TWD87.00(exc. GST)
TWD87.00/unit
In Stock
RS PRO 10A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-520
Subtotal (1 pack of 10 units)
TWD168.00(exc. GST)
TWD16.80/unit
In Stock
Littelfuse 10A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4561
  • Mfr. Part No. 0216010.MXP
Subtotal (1 pack of 10 units)
TWD546.00(exc. GST)
TWD54.60/unit
In Stock
Eaton 25A British Standard Fuse F1 550V ac
  • RS Stock No. 414-077
  • Mfr. Part No. NSD25
Subtotal (1 pack of 5 units)
TWD5,954.00(exc. GST)
TWD1,190.80/unit
In Stock
Eaton 20A British Standard Fuse A1 550V ac, 44.5 mm
  • RS Stock No. 414-645
  • Mfr. Part No. NIT20
Subtotal (1 pack of 5 units)
TWD1,426.00(exc. GST)
TWD285.20/unit
Last RS stock
RS PRO 25A Bolted Tag Fuse A2 690V ac, 73 mm
  • RS Stock No. 221-3711
Subtotal (1 bag of 5 units)
TWD1,388.00(exc. GST)
TWD1,388.00/bag
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 2-Pole, 16A, Type D, 125 V dc DC, 14 kA Breaking Capacity
  • RS Stock No. 211-2396
  • Mfr. Part No. M9F23216
Subtotal (1 unit)
TWD7,393.00(exc. GST)
TWD7,393.00/unit
In Stock
Mersen 32A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 690V ac
  • RS Stock No. 189-5334
  • Mfr. Part No. G1062698 / CMC101N
Subtotal (1 unit)
TWD687.00(exc. GST)
TWD687.00/unit
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