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

52758 Products showing for Fuses & Circuit Breakers

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In Stock
RS PRO 20A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 247-3983
Subtotal (1 pack of 10 units)
R 115,49(exc. VAT)
R 11,549/unit
In Stock
NEMIQ 80A Black Automotive Fuse, 32V
  • RS stock no. 841-947
  • Mfr. Part No. MEGA S 80-PP1
Subtotal (1 unit)
R 41,36(exc. VAT)
R 41,36/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 6A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3442
  • Mfr. Part No. A9F77106
Subtotal (1 unit)
R 209,00(exc. VAT)
R 209,00/unit
In Stock
Hager CDA Series RCD Switch, 40A, 2-Pole, 30 mA, Type A, 6 kA 230V ac
  • RS stock no. 251-2024
  • Mfr. Part No. CDA743F
Subtotal (1 unit)
R 2 753,47(exc. VAT)
R 2 753,47/unit
Stocked by manufacturer
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 2-Pole, 25A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS stock no. 734-9144
  • Mfr. Part No. A9F77225
Subtotal (1 unit)
R 794,00(exc. VAT)
R 794,00/unit
In Stock
Siemens 6A, 500V ac D02 Diazed Fuse, E27 Thread Size
  • RS stock no. 396-174
  • Mfr. Part No. 5SB231
Subtotal (1 pack of 5 units)
R 260,49(exc. VAT)
R 52,098/unit
In Stock
RS Better World
Siemens SENTRON 5SL6 Miniature Circuit Breaker, 1-Pole, 2A, Type C, 400V ac AC, 72 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 202-7172
  • Mfr. Part No. 5SL6102-7
Subtotal (1 unit)
R 469,86(exc. VAT)
R 469,86/unit
Last RS stock
Wickmann 200 mA Resettable Fuse, 24V dc
  • RS stock no. 174-0790
  • Mfr. Part No. RF1345-000
Subtotal (1 pack of 20 units)
R 63,60(exc. VAT)
R 3,18/unit
In Stock
RS Better World
Siemens 5SV3 Series Residual Current Circuit Breaker, 63A, 4-Pole, 30 mA, Type A, 0.8 kA 400V ac
  • RS stock no. 124-7734
  • Mfr. Part No. 5SV3346-6
Subtotal (1 unit)
R 6 602,64(exc. VAT)
R 6 602,64/unit
In Stock
Eaton xPole Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 10 kA 230V ac
  • RS stock no. 227-0738
  • Mfr. Part No. 267448 PFGM-63/2/003-A
Subtotal (1 unit)
R 1 653,17(exc. VAT)
R 1 653,17/unit
In Stock
RS Better World
Siemens 5SV3 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A, 0.8 kA 400V ac
  • RS stock no. 124-7721
  • Mfr. Part No. 5SV3344-6
Subtotal (1 unit)
R 3 569,68(exc. VAT)
R 3 569,68/unit
Stocked by manufacturer
RS Better World
Siemens, SENTRON, 3VA1 Molded Case Circuit Breaker 3-Pole 100A, Breaking Capacity 55 kA
  • RS stock no. 209-6749
  • Mfr. Part No. 3VA1110-5EE36-0AA0
Subtotal (1 unit)
R 6 258,58(exc. VAT)
R 6 258,58/unit
Stocked by manufacturer
Schneider Electric Multi9 M9F1 Miniature Circuit Breaker, 1-Pole, 16A, Type C, 415V ac AC, 72 V dc DC, 3 kA Breaking
  • RS stock no. 212-075
  • Mfr. Part No. M9F11116
Subtotal (1 unit)
R 16 299,86(exc. VAT)
R 16 299,86/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 1A, Type C, 230V ac AC, 72 V dc DC, 6 kA Breaking
  • RS stock no. 746-7646
  • Mfr. Part No. 2CDS251001R0014 S201-C1
Subtotal (1 unit)
R 335,53(exc. VAT)
R 335,53/unit
In Stock
RS Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 1-Pole, 32A, Type C, 440V ac AC, 60 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 539-8251
  • Mfr. Part No. 2CDS211001R0324 SH201-C32
Subtotal (1 unit)
R 364,86(exc. VAT)
R 364,86/unit
Stocked by manufacturer
Schneider Electric, ComPact, ComPact NS800N Molded Case Circuit Breaker 4-Pole 800A, Breaking Capacity 50 kA, Fixed
  • RS stock no. 247-1811
  • Mfr. Part No. 33469
Subtotal (1 unit)
R 69 083,38(exc. VAT)
R 69 083,38/unit
In Stock
Littelfuse 50A Red Car Fuse, 32V dc
  • RS stock no. 431-6703
  • Mfr. Part No. 153.5631.5501
Subtotal (1 pack of 5 units)
R 439,96(exc. VAT)
R 87,992/unit
In Stock
RS PRO 2A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 420-167
Subtotal (1 pack of 10 units)
R 435,37(exc. VAT)
R 43,537/unit
In Stock
RS PRO 3 Phase Industrial Surge Protector, 50 kA, 1.25 kV, DIN Rail
  • RS stock no. 101-736
Subtotal (1 unit)
R 2 141,65(exc. VAT)
R 2 141,65/unit
In Stock
Eaton 1A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS stock no. 412-986
  • Mfr. Part No. TDC180-1A
Subtotal (1 pack of 10 units)
R 133,77(exc. VAT)
R 13,377/unit
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