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

51804 Products showing for Fuses & Circuit Breakers

1 of 999+
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 PRO 20A Yellow Car Fuse, 32V dc
  • RS stock no. 563-762
Subtotal (1 pack of 10 units)
R 18,72(exc. VAT)
R 1,872/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
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 6A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS stock no. 734-9239
  • Mfr. Part No. A9F77206
Subtotal (1 unit)
R 905,87(exc. VAT)
R 905,87/unit
In Stock
Littelfuse 2A Grey Car Fuse, 32V dc
  • RS stock no. 787-4126
  • Mfr. Part No. 0287002.PXCN
Subtotal (1 pack of 10 units)
R 72,77(exc. VAT)
R 7,277/unit
In Stock
Littelfuse 1A Black Car Fuse, 32V dc
  • RS stock no. 787-4110
  • Mfr. Part No. 0287001.PXCN
Subtotal (1 pack of 10 units)
R 95,22(exc. VAT)
R 9,522/unit
In Stock
Limitor Thermal Fuse 97 °C, 2A, 250V 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
In Stock
Littelfuse 5A Brown Car Fuse, 32V dc
  • RS stock no. 787-4108
  • Mfr. Part No. 0287005.PXCN
Subtotal (1 pack of 10 units)
R 63,58(exc. VAT)
R 6,358/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
ETA 1658 Thermal Circuit Breaker - 1-Pole, Panel, 10A Current Rating, 25 A, 250V ac, 28 V dc
  • RS stock no. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Subtotal (1 unit)
R 128,51(exc. VAT)
R 128,51/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 124,00(exc. VAT)
R 124,00/unit
In Stock
Littelfuse 20A Yellow Car Fuse, 32V dc
  • RS stock no. 787-4136
  • Mfr. Part No. 0287020.PXCN
Subtotal (1 pack of 10 units)
R 73,34(exc. VAT)
R 7,334/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
Mersen 50A FF Ceramic Cartridge Fuse, 14 x 51 mm
  • RS stock no. 136-0613
  • Mfr. Part No. K1017207 / FR14GR69V50
Subtotal (1 unit)
R 406,26(exc. VAT)
R 406,26/unit
In Stock
Limitor Thermal Fuse 115 °C, 2A, 250V ac
  • RS stock no. 176-9378
  • Mfr. Part No. SM 110 A0
Subtotal (1 pack of 5 units)
R 112,64(exc. VAT)
R 22,528/unit
In Stock
Littelfuse 20A In-line Fuse Holder, 32V dc
  • RS stock no. 787-4356
  • Mfr. Part No. FHAC0001ZXJG
Subtotal (1 unit)
R 117,24(exc. VAT)
R 117,24/unit
In Stock
RS Better World
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 1 531,38(exc. VAT)
R 1 531,38/unit
In Stock
Eaton 4A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS stock no. 228-662
  • Mfr. Part No. C10G4
Subtotal (1 pack of 10 units)
R 411,99(exc. VAT)
R 411,99/pack
In Stock
ETA Thermal Overcurrent Circuit Breakers 1658 Thermal Circuit Breaker - 1-Pole, Panel, 6A Current Rating, 6 A, 250V ac,
  • RS stock no. 344-5327
  • Mfr. Part No. 1658-G21-02-P10-6A
Subtotal (1 unit)
R 114,14(exc. VAT)
R 114,14/unit
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 2 233,34(exc. VAT)
R 446,668/unit
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