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

51044 Products showing for Fuses & Circuit Breakers

1 of 999+
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 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
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 Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 10A, Type C, 230V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 225-5986
  • Mfr. Part No. 2CDS251001R0104 S201 C 10A - 10 KA
Subtotal (1 unit)
R 428,25(exc. VAT)
R 428,25/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
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 16A, Type B, 253V ac AC, 72 V dc DC, 10
  • RS stock no. 535-5995
  • Mfr. Part No. 2CDS271001R0165 S201M-B16
Subtotal (1 unit)
R 462,73(exc. VAT)
R 462,73/unit
In Stock
ABB 32A Fuse Holder for 10 x 38 mm, 2P-Pole, 400V
  • RS stock no. 289-1624
  • Mfr. Part No. 2CSM264383R1801
Subtotal (1 unit)
R 166,44(exc. VAT)
R 166,44/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS stock no. 226-0833
  • Mfr. Part No. 8GK9733-0KK30
Subtotal (1 unit)
R 2 750,80(exc. VAT)
R 2 750,80/unit
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 6A, Type K, 253V ac AC, 72 V dc DC, 6
  • RS stock no. 514-0125
  • Mfr. Part No. 2CDS251001R0377 S201-K6
Subtotal (1 unit)
R 615,33(exc. VAT)
R 615,33/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 16A, Type B, 400V ac AC, 6 kA Breaking Capacity
  • RS stock no. 746-7598
  • Mfr. Part No. 2CDS253001R0165 S203-B16
Subtotal (1 unit)
R 1 569,61(exc. VAT)
R 1 569,61/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 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
In Stock
ABB Earth & Neutral Terminal Bar for use with Miniature Circuit Breaker
  • RS stock no. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
Subtotal (1 box of 1 unit)
R 189,67(exc. VAT)
R 189,67/box
In Stock
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 32A, Type C, 253V ac AC, 72 V dc DC, 10
  • RS stock no. 535-4188
  • Mfr. Part No. 2CDS271001R0324 S201M-C32
Subtotal (1 unit)
R 449,13(exc. VAT)
R 449,13/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
Stocked by manufacturer
ABB Surge Arrester, 20 kA
  • RS stock no. 246-2248
  • Mfr. Part No. 2CCF606000R0001
Subtotal (1 unit)
R 6 864,95(exc. VAT)
R 6 864,95/unit
In Stock
ABB Tmax XT Shunt Opening Release for use with Circuit Breaker
  • RS stock no. 231-9365
  • Mfr. Part No. 1SDA104934R1 YO-C XT5-XT6 F/P 110.240Va
Subtotal (1 unit)
R 2 364,04(exc. VAT)
R 2 364,04/unit
In Stock
ABB PS3 PS 3 Phase Busbar, 690 V ac/dc
  • RS stock no. 231-9640
  • Mfr. Part No. 2CDL230001R1012 PS3/12
Subtotal (1 box of 1 unit)
R 288,77(exc. VAT)
R 288,77/box
In Stock
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 25A, Type C, 253V ac AC, 72 V dc DC, 10
  • RS stock no. 535-4172
  • Mfr. Part No. 2CDS271001R0254 S201M-C25
Subtotal (1 unit)
R 462,73(exc. VAT)
R 462,73/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
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