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

51061 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0177
Subtotal (1 unit)
R 421,44(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0188
Subtotal (1 unit)
R 204,94(exc. VAT)
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)
R 41,05(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0199
Subtotal (1 unit)
R 232,01(exc. VAT)
In Stock
Eaton Non-Resettable Fuse, Radial 1 A, 250 V
  • RS stock no. 769-3410
  • Mfr. Part No. SS-5H-1A-BK
Subtotal (1 pack of 10 units)
R 69,12(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 2A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0175
Subtotal (1 unit)
R 476,45(exc. VAT)
In Stock
RS PRO 15 A In-line Fuse Holder, 32 V
  • RS stock no. 237-5266
Subtotal (1 unit)
R 81,10(exc. VAT)
In Stock
ABB, Protecta, XT1N Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 36 kA, DIN Rail
  • RS stock no. 831-9175
  • Mfr. Part No. 1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
Subtotal (1 unit)
R 8 421,87(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 3-Pole, 63A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0210
Subtotal (1 unit)
R 873,70(exc. VAT)
In Stock
RS PRO BS 1362 Fuse Kit
  • RS stock no. 893-8546
Subtotal (1 unit)
R 1 371,04(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 16A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0197
Subtotal (1 unit)
R 218,31(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0190
Subtotal (1 unit)
R 216,05(exc. VAT)
In Stock
Eaton PFIM Series Residual Current Device, 25A, 4-Pole, 30 mA, Type A, 10 kA 230V, 400 V
  • RS stock no. 922-8667
  • Mfr. Part No. 235435 PFIM-25/4/003-A-MW
Subtotal (1 unit)
R 3 773,68(exc. VAT)
In Stock
Eaton 160A Centred Tag Fuse NH00 500V ac
  • RS stock no. 703-8664
  • Mfr. Part No. 160NHG00B
Subtotal (1 unit)
R 174,00(exc. VAT)
In Stock
Eaton PFIM Series Residual Current Device, 40A, 4-Pole, 30 mA, Type A, 10 kA 230V, 400 V
  • RS stock no. 922-8664
  • Mfr. Part No. 235439 PFIM-40/4/003-A-MW
Subtotal (1 unit)
R 4 384,42(exc. VAT)
In Stock
WJ Furse Copper Alloy Earth Clamp Max. Conductor Size 70 mm² Nominal Rod dia. 16 mm 304.8 mm
  • RS stock no. 153-2963
  • Mfr. Part No. 7TCA083220R0010 CR515
Subtotal (1 pack of 10 units)
R 1 963,90(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0187
Subtotal (1 unit)
R 216,35(exc. VAT)
In Stock
Eaton 6 A British Standard Fuse E1 240 V ac
  • RS stock no. 418-710
  • Mfr. Part No. SSD6
Subtotal (1 pack of 5 units)
R 282,16(exc. VAT)
In Stock
RS PRO Yellow Car Fuse, 32V dc
  • RS stock no. 563-762
Subtotal (1 pack of 10 units)
R 18,72(exc. VAT)
In Stock
RS PRO 10 A In-line Fuse Holder for 5 x 20 mm, 250 V
  • RS stock no. 237-5259
Subtotal (1 unit)
R 51,84(exc. VAT)
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