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

50858 Products showing for Fuses & Circuit Breakers

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In Stock
Littelfuse 4A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-3748
  • Mfr. Part No. 0217004.MXP
Subtotal (1 pack of 10 units)
SGD4.61(exc. GST)
SGD0.461/unit
In Stock
Eaton 4A AM Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 181-8822
  • Mfr. Part No. C14M4
Subtotal (1 unit)
SGD3.69(exc. GST)
SGD3.69/unit
In Stock
Eaton 13A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-605
  • Mfr. Part No. TDC180-13A
Subtotal (1 pack of 10 units)
SGD15.25(exc. GST)
SGD1.525/unit
In Stock
Schurter 16A Panel Mount Fuse Holder, 1P-Pole for Mini, 400V ac
  • RS Stock No. 867-4365
  • Mfr. Part No. 3101.0215
Subtotal (1 pack of 10 units)
SGD56.90(exc. GST)
SGD5.69/unit
In Stock
Eaton 3.15A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1509
  • Mfr. Part No. S505-3.15-R
Subtotal (1 pack of 10 units)
SGD3.33(exc. GST)
SGD0.333/unit
In Stock
Eaton 2A F Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 458-8510
  • Mfr. Part No. KTK-2
Subtotal (1 pack of 5 units)
SGD137.21(exc. GST)
SGD27.442/unit
In Stock
Schneider Electric Acti9 Adapter for use with IlD MCB, iC60 MCB, IC60 Rotary Handle, IDPN Vigi, ISW-NA
  • RS Stock No. 791-3035
  • Mfr. Part No. A9A27008
Subtotal (1 unit)
SGD201.77(exc. GST)
SGD201.77/unit
In Stock
Littelfuse 800mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-3732
  • Mfr. Part No. 0218.800MXP
Subtotal (1 pack of 10 units)
SGD10.39(exc. GST)
SGD1.039/unit
In Stock
RS PRO 250mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9888
Subtotal (1 pack of 10 units)
SGD6.03(exc. GST)
SGD0.603/unit
Limited stock
Eaton 6A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8374
  • Mfr. Part No. C10G6
Subtotal (1 pack of 10 units)
SGD24.37(exc. GST)
SGD2.437/unit
In Stock
Littelfuse 60A Yellow Car Fuse, 32V dc
  • RS Stock No. 431-6719
  • Mfr. Part No. 153.5631.5601
Subtotal (1 pack of 5 units)
SGD29.70(exc. GST)
SGD5.94/unit
Temporarily out of stock
Eaton xEffect xEffect Miniature Circuit Breaker, 2-Pole, 20A, Type D, 415V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3548
  • Mfr. Part No. 102191 FAZ-D20/2-NA
Subtotal (1 unit)
SGD330.72(exc. GST)
SGD330.72/unit
Limited stock
Schurter 2A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7781
  • Mfr. Part No. 0001.2507
Subtotal (1 bag of 10 units)
SGD9.32(exc. GST)
SGD0.932/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS Stock No. 776-3436
  • Mfr. Part No. A9F74102
Subtotal (1 unit)
SGD41.11(exc. GST)
SGD41.11/unit
In Stock
Mersen 2A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 188-6956
  • Mfr. Part No. D213098 / FR10GG50V2
Subtotal (1 pack of 10 units)
SGD30.47(exc. GST)
SGD3.047/unit
In Stock
Eaton 1A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1212
  • Mfr. Part No. S500-1-R
Subtotal (1 pack of 10 units)
SGD4.49(exc. GST)
SGD0.449/unit
In Stock
Littelfuse 10A Red Car Fuse, 32V dc
  • RS Stock No. 787-4101
  • Mfr. Part No. 0287010.PXCN
Subtotal (1 pack of 10 units)
SGD5.88(exc. GST)
SGD0.588/unit
Temporarily out of stock
Littelfuse 2A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0032
  • Mfr. Part No. 0313002.HXP
Subtotal (1 pack of 10 units)
SGD12.25(exc. GST)
SGD1.225/unit
In Stock
Eaton 100A GG Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 229-117
  • Mfr. Part No. C22G100
Subtotal (1 pack of 10 units)
SGD139.02(exc. GST)
SGD139.02/pack
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 16A, Type C, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 383-2125
  • Mfr. Part No. 5SY4316-7
Subtotal (1 unit)
SGD145.57(exc. GST)
SGD145.57/unit
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