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

51620 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO 15 A In-line Fuse Holder, 32 V
  • RS stock no. 237-5266
Subtotal (1 unit)
R 84,24(exc. VAT)
R 84,24/unit
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 5 x 20 mm
  • RS stock no. 563-380
Subtotal (1 pack of 10 units)
R 41,05(exc. VAT)
R 4,105/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 4A, Type Z, 253V AC, 72 V DC, 10 kA Breaking Capacity
  • RS stock no. 225-5992
  • Mfr. Part No. 2CDS251001R0338 S201 Z 4A - 10 KA
Subtotal (1 unit)
R 842,07(exc. VAT)
R 842,07/unit
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 212,89(exc. VAT)
R 212,89/unit
In Stock
RS PRO 10A Panel Mount Fuse Holder, 1P-Pole for 5 x 20 mm, 250V ac
  • RS stock no. 277-3909
Subtotal (1 pack of 5 units)
R 207,05(exc. VAT)
R 41,41/unit
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 16A, Type K, 253V ac AC, 72 V dc DC, 6
  • RS stock no. 514-0147
  • Mfr. Part No. 2CDS251001R0467 S201-K16
Subtotal (1 unit)
R 565,01(exc. VAT)
R 565,01/unit
In Stock
Littelfuse Blade Fuse Kit
  • RS stock no. 820-7278
  • Mfr. Part No. 00940509ZXGLOA
Subtotal (1 unit)
R 4 019,39(exc. VAT)
R 4 019,39/unit
In Stock
RS PRO BS 1362 Fuse Kit
  • RS stock no. 893-8546
Subtotal (1 unit)
R 1 385,18(exc. VAT)
R 1 385,18/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 6A, Type Z, 253V AC, 72 V DC, 10 kA Breaking Capacity
  • RS stock no. 225-5994
  • Mfr. Part No. 2CDS251001R0378 S201 Z 6A - 10 KA
Subtotal (1 unit)
R 987,76(exc. VAT)
R 987,76/unit
In Stock
RS PRO 8A T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS stock no. 563-598
Subtotal (1 pack of 10 units)
R 70,23(exc. VAT)
R 7,023/unit
In Stock
RS PRO FT Fuse Kit
  • RS stock no. 893-8543
Subtotal (1 unit)
R 4 082,98(exc. VAT)
R 4 082,98/unit
In Stock
RS PRO 10A Panel Mount Fuse Holder for 5 x 20 mm, 250V ac
  • RS stock no. 188-4630
Subtotal (1 unit)
R 88,42(exc. VAT)
R 88,42/unit
In Stock
RS PRO Fuse Kit
  • RS stock no. 541-3108
Subtotal (1 pack of 10 units)
R 33,46(exc. VAT)
R 3,346/unit
In Stock
Eaton 20A Rail Mount Fuse Holder for A2, 1P-Pole, 690V ac
  • RS stock no. 413-901
  • Mfr. Part No. RS20H
Subtotal (1 unit)
R 436,17(exc. VAT)
R 436,17/unit
In Stock
Mersen 32A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 1 kV ac/dc, 690V ac
  • RS stock no. 189-5338
  • Mfr. Part No. G1062721 / CUS101
Subtotal (1 unit)
R 199,16(exc. VAT)
R 199,16/unit
In Stock
Littelfuse Blade Fuse Kit
  • RS stock no. 820-7284
  • Mfr. Part No. 00940553Z
Subtotal (1 unit)
R 1 985,47(exc. VAT)
R 1 985,47/unit
In Stock
Limitor Thermal Fuse 97 °C, 2 A, 250 V ac
  • RS stock no. 116-114
  • Mfr. Part No. SM 092 A0 2A
Subtotal (1 pack of 5 units)
R 121,55(exc. VAT)
R 121,55/pack
Limited stock
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 6A, Type C, 253V ac AC, 72 V dc DC, 6
  • RS stock no. 488-6296
  • Mfr. Part No. 2CDS251001R0064 S201-C6
Subtotal (1 unit)
R 429,34(exc. VAT)
R 429,34/unit
In Stock
RS PRO FT Fuse Kit
  • RS stock no. 893-8530
Subtotal (1 unit)
R 1 676,80(exc. VAT)
R 1 676,80/unit
Being discontinued
RS PRO 10A T Glass Cartridge Fuse, 5 x 20 mm
  • RS stock no. 563-334
Subtotal (1 pack of 10 units)
R 17,46(exc. VAT)
R 17,46/unit
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