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
Earth & Lightning Protection
Fuse Holders & Accessories
Fuses

51158 Products showing for Fuses & Circuit Breakers

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In Stock
ABB 36 Plastic Consumer Unit, 125A, IEC60670 / EN60439-3 IP65 MISTRAL65
  • RS Stock No. 811-1909
  • Mfr. Part No. 1SL1205A00 65P18X22
Subtotal (1 unit)
SGD188.93(exc. GST)
SGD188.93/unit
In Stock
RS PRO 500mA FF Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 420-066
Subtotal (1 pack of 10 units)
SGD26.77(exc. GST)
SGD2.677/unit
In Stock
RS PRO Non-Resettable Fuse, Radial 1A, 250V
  • RS Stock No. 767-5112
Subtotal (1 pack of 10 units)
SGD8.51(exc. GST)
SGD0.851/unit
In Stock
RS PRO 30A Green Car Fuse, 32V dc
  • RS Stock No. 563-766
Subtotal (1 pack of 10 units)
SGD6.54(exc. GST)
SGD0.654/unit
In Stock
Mersen 4A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 188-6962
  • Mfr. Part No. X213598 / FR10GG50V4
Subtotal (1 pack of 10 units)
SGD54.36(exc. GST)
SGD5.436/unit
In Stock
Siemens 2A F Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 203-2046
  • Mfr. Part No. 3NW6002-1
Subtotal (1 pack of 10 units)
SGD82.19(exc. GST)
SGD8.219/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)
SGD3.83(exc. GST)
SGD0.383/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
RS Better World
ABB MCB SN200 SN201 Miniature Circuit Breaker, 2-Pole, 16A, Type C, 230V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 231-9975
  • Mfr. Part No. 2CSS255101R0164 SN201-C16 -
Subtotal (1 unit)
SGD68.90(exc. GST)
SGD68.90/unit
Temporarily out of 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
ABB 8 Plastic Consumer Unit, 63A, IEC60670, EN60439-3 IP65 MISTRAL65
  • RS Stock No. 811-1899
  • Mfr. Part No. 1SL1201A00 65P08X12
Subtotal (1 unit)
SGD49.57(exc. GST)
SGD49.57/unit
In Stock
RS PRO 3.15A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9709
Subtotal (1 pack of 10 units)
SGD5.73(exc. GST)
SGD0.573/unit
In Stock
Altech 4A F Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 899-0967
  • Mfr. Part No. 2621003
Subtotal (1 pack of 10 units)
SGD44.65(exc. GST)
SGD4.465/unit
In Stock
RS PRO 3.15A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-699
Subtotal (1 pack of 10 units)
SGD6.80(exc. GST)
SGD0.68/unit
In Stock
Schneider Electric IID Series Residual Current Circuit Breaker, 63A, 4-Pole, 300 mA, Type AC, 1.5 kA 415V ac
  • RS Stock No. 806-7326
  • Mfr. Part No. A9R44463
Subtotal (1 unit)
SGD343.76(exc. GST)
SGD343.76/unit
In Stock
Littelfuse 500mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4230
  • Mfr. Part No. 0218.500MXP
Subtotal (1 pack of 10 units)
SGD12.13(exc. GST)
SGD1.213/unit
Temporarily out of stock
RS PRO 500mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5957
Subtotal (1 pack of 10 units)
SGD5.15(exc. GST)
SGD0.515/unit
In 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)
SGD25.34(exc. GST)
SGD2.534/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 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
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