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

Fuses - PCB
Fuses - PCB

43466 Products showing for Fuses & Circuit Breakers

1 / 999+
Currently unavailable
RS PRO Automotive Fuse Kit
  • RS Stock No. 186-6362
Subtotal (1 kit)
MYR617.30
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)
MYR81.28
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)
MYR92.28
Temporarily out of stock
Schurter 3.15A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7794
  • Mfr. Part No. 0001.2509
Subtotal (1 bag of 10 units)
MYR25.51
Temporarily out of stock
RS PRO 25A Natural Car Fuse, 32V dc
  • RS Stock No. 563-475
Subtotal (1 pack of 10 units)
MYR32.84
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 16A, Type B, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0160
Subtotal (1 unit)
MYR110.25
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-380
Subtotal (1 pack of 10 units)
MYR22.87
In Stock
Schurter 10A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7842
  • Mfr. Part No. 0034.1526
Subtotal (1 bag of 10 units)
MYR22.97
In Stock
Eaton 2A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
MYR104.73
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)
MYR46.83
In Stock
Eaton 3 Phase Surge Protector, 15 kA, 415 V ac, DIN Rail
  • RS Stock No. 847-3677
  • Mfr. Part No. 102036 FAZ-XAA-NA110-415VAC
Subtotal (1 unit)
MYR217.16
Temporarily out of stock
Better World
Schneider Electric Easy9 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type AC, 500 A 230V ac
  • RS Stock No. 850-8583
  • Mfr. Part No. EZ9R33263
Subtotal (1 unit)
MYR116.79
Temporarily out of stock
ABB Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 183-3708
  • Mfr. Part No. 2CSR245441R1164/471033
Subtotal (1 unit)
MYR956.20
Temporarily out of stock
ABB Surge Protection Device, 25 kA, DIN Rail
  • RS Stock No. 175-2590
  • Mfr. Part No. 2CTB815710R0100
Subtotal (1 unit)
MYR2,793.65
Temporarily out of stock
RS PRO NF12 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A 230V ac
  • RS Stock No. 284-2367
Subtotal (1 unit)
MYR203.35
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)
MYR12.09
Stocked by manufacturer
Schneider Electric Acti9 Acti9 1 Phase Distribution Board 32 Way
  • RS Stock No. 335-398
  • Mfr. Part No. SEA9DE64
Subtotal (1 unit)
MYR2,087.45
Temporarily out of stock
MEAN WELL Surge Protector, 20 kA, 1500 V
  • RS Stock No. 424-954
  • Mfr. Part No. SPD-20-240P
Subtotal (1 unit)
MYR82.96
Temporarily out of stock
Schurter 10A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 269-3859
  • Mfr. Part No. 7010.3530
Subtotal (1 unit)
MYR3.19
In Stock
RS PRO 2A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5969
Subtotal (1 pack of 10 units)
MYR17.21
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