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
Fuses - PCB

52867 Products showing for Fuses & Circuit Breakers

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In Stock
TE Connectivity W58 Thermal Circuit Breaker -, 8A Current Rating 1-Pole, Direct
  • RS stock no. 782-8041
  • Mfr. Part No. W58-XB1A4A-8
Subtotal (1 unit)
R 162,23(exc. VAT)
R 162,23/unit
Limited stock
Schneider Electric 32A Rail Mount Fuse Holder for 10 x 38 mm, 3P-Pole, 690V ac
  • RS stock no. 482-843
  • Mfr. Part No. DF103N
Subtotal (1 unit)
R 727,50(exc. VAT)
R 727,50/unit
Stocked by manufacturer
Schneider Electric EZ9R Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A 230V ac
  • RS stock no. 654-804
  • Mfr. Part No. EZ9R46263
Subtotal (1 unit)
R 1 274,65(exc. VAT)
R 1 274,65/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 3-Pole, 10A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS stock no. 734-9141
  • Mfr. Part No. A9F77310
Subtotal (1 unit)
R 1 038,00(exc. VAT)
R 1 038,00/unit
Stocked by manufacturer
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3458
  • Mfr. Part No. A9F77120
Subtotal (1 unit)
R 209,00(exc. VAT)
R 209,00/unit
In Stock
RS PRO Earthing Kit
  • RS stock no. 528-983
Subtotal (1 unit)
R 556,36(exc. VAT)
R 556,36/unit
In Stock
TE Connectivity W23 Thermal Circuit Breaker -, 50A Current Rating 1-Pole, Direct
  • RS stock no. 782-0882
  • Mfr. Part No. W23-X1A1G-50
Subtotal (1 unit)
R 640,83(exc. VAT)
R 640,83/unit
In Stock
Littelfuse 200A Base Mount Fuse Holder, 32V dc
  • RS stock no. 548-9183
  • Mfr. Part No. 04980900ZXT
Subtotal (1 unit)
R 234,09(exc. VAT)
R 234,09/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 330,93(exc. VAT)
R 330,93/unit
In Stock
Europa EUR1 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A, 10 kA 230
  • RS stock no. 210-4756
  • Mfr. Part No. EUR163.30/2A
Subtotal (1 unit)
R 1 112,09(exc. VAT)
R 1 112,09/unit
In Stock
NEMIQ 50A Black Automotive Fuse, 32V
  • RS stock no. 841-943
  • Mfr. Part No. MEGA S 50-PP1
Subtotal (1 unit)
R 40,35(exc. VAT)
R 40,35/unit
In Stock
Wickmann Non-Resettable Fuse, Radial 1.6A, 250V ac
  • RS stock no. 226-0951
  • Mfr. Part No. 3721160000
Subtotal (1 pack of 10 units)
R 72,18(exc. VAT)
R 7,218/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3446
  • Mfr. Part No. A9F77110
Subtotal (1 unit)
R 209,00(exc. VAT)
R 209,00/unit
In Stock
Wickmann 500A Brown Car Fuse, 32V dc
  • RS stock no. 174-0685
  • Mfr. Part No. 0298500.ZXH
Subtotal (1 pack of 5 units)
R 1 023,11(exc. VAT)
R 204,622/unit
In Stock
Wickmann 4.2 A Resettable Fuse, 30V dc
  • RS stock no. 174-0895
  • Mfr. Part No. RF1672-000
Subtotal (1 pack of 100 units)
R 1 412,40(exc. VAT)
R 14,124/unit
In Stock
RS PRO Earthing Strap Copper Copper
  • RS stock no. 264-9225
Subtotal (1 pack of 5 units)
R 663,17(exc. VAT)
R 132,634/unit
In Stock
RS PRO 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)
R 470,38(exc. VAT)
R 470,38/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 10A, Type B, 400V ac AC, 10 kA Breaking Capacity
  • RS stock no. 231-9660
  • Mfr. Part No. 2CDS251001R0105 S201 B 10A - 10 KA
Subtotal (1 box of 1 unit)
R 414,74(exc. VAT)
R 414,74/box
In Stock
ABB SD200 SD200 Miniature Circuit Breaker, 2-Pole, 40A, 462V ac AC, 131 V dc DC
  • RS stock no. 191-9453
  • Mfr. Part No. 2CDD282101R0040 SD202/40
Subtotal (1 unit)
R 571,35(exc. VAT)
R 571,35/unit
Last RS stock
TE Connectivity W57 Thermal Circuit Breaker -, 10A Current Rating 1-Pole, Direct
  • RS stock no. 782-0867
  • Mfr. Part No. W57-XB7A4A10-10
Subtotal (1 unit)
R 84,38(exc. VAT)
R 84,38/unit
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