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

51081 Products showing for Fuses & Circuit Breakers

2 of 999+
In Stock
Eaton 6A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS stock no. 703-8374
  • Mfr. Part No. C10G6
Subtotal (1 pack of 10 units)
R 262,48(exc. VAT)
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS stock no. 212-166
  • Mfr. Part No. A9D07616
Subtotal (1 unit)
R 1 519,01(exc. VAT)
In Stock
Eaton 15A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 848-2687
  • Mfr. Part No. ABC-15-R
Subtotal (1 unit)
R 25,89(exc. VAT)
In Stock
Mersen 50A FF Ceramic Cartridge Fuse, 14 x 51 mm
  • RS stock no. 136-0613
  • Mfr. Part No. K1017207 / FR14GR69V50
Subtotal (1 unit)
R 368,51(exc. VAT)
Limited stock
Eaton 440mA F Melamine Cartridge Fuse, 10 x 35 mm
  • RS stock no. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Subtotal (1 pack of 5 units)
R 2 219,93(exc. VAT)
In Stock
ABB, Tmax XT, 1SDA06 Molded Case Circuit Breaker 3-Pole 40A, Breaking Capacity 4 kA, Fixed
  • RS stock no. 236-7281
  • Mfr. Part No. 1SDA067412R1 XT1N 160 TMD 40A FF
Subtotal (1 unit)
R 5 271,82(exc. VAT)
In Stock
Schneider Electric A9R11 Series Residual Current Circuit Breaker, 80A, 2-Pole, 30 mA, Type AC, 10 kA 240V ac
  • RS stock no. 589-856
  • Mfr. Part No. A9R11280
Subtotal (1 unit)
R 5 440,32(exc. VAT)
Last RS stock
RS Better World
ABB S200C S200C Miniature Circuit Breaker, 2-Pole, 4A, Type B, 415V ac AC, 6 kA Breaking Capacity
  • RS stock no. 212-1618
  • Mfr. Part No. 2CDS252280R0045
Subtotal (1 unit)
R 1 036,57(exc. VAT)
In Stock
RS Better World
Siemens Surge Protector, 24 V dc
  • RS stock no. 122-9486
  • Mfr. Part No. 3RT2936-1ER00
Subtotal (1 unit)
R 525,37(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
Eaton 4A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS stock no. 703-8370
  • Mfr. Part No. C10G4
Subtotal (1 pack of 10 units)
R 263,08(exc. VAT)
In Stock
Eaton 100A Bolted Tag Fuse B1 500V ac, 111 mm
  • RS stock no. 181-8502
  • Mfr. Part No. CD100
Subtotal (1 box of 10 units)
R 3 167,90(exc. VAT)
In Stock
Eaton 400A NH Fuse NH2 500V
  • RS stock no. 703-8759
  • Mfr. Part No. 400NHG2B
Subtotal (1 unit)
R 463,27(exc. VAT)
In Stock
RS PRO 12.5A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 209-9282
Subtotal (1 pack of 10 units)
R 172,45(exc. VAT)
In Stock
ABB 315A Centred Tag Fuse NH2 500V
  • RS stock no. 779-9990
  • Mfr. Part No. OFAF2H315 1SCA022627R6010
Subtotal (1 unit)
R 435,83(exc. VAT)
In Stock
RS Better World
Schneider Electric Earthing Strap Tin Plated Copper Copper 8.5 mm Diameter 16 mm² Diameter
  • RS stock no. 222-3853
  • Mfr. Part No. NSYEB1516D8
Subtotal (1 pack of 10 units)
R 1 063,88(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
Eaton xEffect FAZ Miniature Circuit Breaker, 1-Pole, 16A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 922-6970
  • Mfr. Part No. 278535 FAZ-B16/1
Subtotal (1 unit)
R 573,06(exc. VAT)
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS stock no. 226-0833
  • Mfr. Part No. 8GK9733-0KK30
Subtotal (1 unit)
R 2 645,79(exc. VAT)
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