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

Consumer Units & Accessories
Consumer Units & Accessories

Earth & Lightning Protection
Earth & Lightning Protection

Fuse Holders & Accessories
Fuse Holders & Accessories

Fuses
Fuses

50859 Products showing for Fuses & Circuit Breakers

1 of 999+
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 200,78(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 466,90(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0199
Subtotal (1 unit)
R 227,30(exc. VAT)
In Stock
RS PRO NF12 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A 230V ac
  • RS stock no. 284-2371
Subtotal (1 unit)
R 1 094,94(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
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS stock no. 265-0177
Subtotal (1 unit)
R 412,42(exc. VAT)
In Stock
RS PRO 15 A In-line Fuse Holder, 32 V
  • RS stock no. 237-5266
Subtotal (1 unit)
R 79,76(exc. VAT)
In Stock
Littelfuse 250A Pink Car Fuse, 32V dc
  • RS stock no. 787-4417
  • Mfr. Part No. 0298250.ZXEH
Subtotal (1 unit)
R 122,55(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 265-0186
Subtotal (1 unit)
R 462,46(exc. VAT)
In Stock
Lovato Modulo P1MB Miniature Circuit Breaker, 2-Pole, 2A, Type B, 400V ac AC, 80 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 825-5661
  • Mfr. Part No. P1MB2PB02
Subtotal (1 unit)
R 1 211,18(exc. VAT)
In Stock
RS PRO 10 A In-line Fuse Holder for 5 x 20 mm, 250 V
  • RS stock no. 237-5259
Subtotal (1 unit)
R 50,76(exc. VAT)
In Stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 2-Pole, 2A, Type C, 400V ac AC, 400 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 772-1278
  • Mfr. Part No. 5SY4202-7
Subtotal (1 unit)
R 1 260,00(exc. VAT)
In Stock
Schneider Electric A9R Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type AC 500V ac
  • RS stock no. 654-561
  • Mfr. Part No. A9R41263
Subtotal (1 unit)
R 6 221,14(exc. VAT)
In Stock
Eaton 25A AM Cartridge Fuse, 10 x 38 mm
  • RS stock no. 229-105
  • Mfr. Part No. C10M25 CYLINDRICAL FUSE 10 x 38 25A AM 400V AC
Subtotal (1 pack of 10 units)
R 508,44(exc. VAT)
In Stock
Eaton 20A Yellow Car Fuse, 32V dc
  • RS stock no. 848-2567
  • Mfr. Part No. ATC-20
Subtotal (1 unit)
R 13,90(exc. VAT)
In Stock
Siemens SENTRON 5SY Miniature Circuit Breaker, 2-Pole, 10A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS stock no. 232-2318
  • Mfr. Part No. 5SY6210-7
Subtotal (1 unit)
R 1 231,91(exc. VAT)
In Stock
ETA 2 5700 Thermal Circuit Breaker - 1-Pole, Panel, 12A Current Rating, 25 A, 250V ac, 50 V dc
  • RS stock no. 729-2767
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-12A
Subtotal (1 unit)
R 548,68(exc. VAT)
In Stock
RS PRO Non-Resettable Fuse, Radial 3.15 A, 250 V ac
  • RS stock no. 767-5052
Subtotal (1 pack of 10 units)
R 56,13(exc. VAT)
In Stock
RS PRO 16A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS stock no. 420-230
Subtotal (1 pack of 10 units)
R 574,72(exc. VAT)
In Stock
ABB, Protecta, XT1N Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 36 kA, DIN Rail
  • RS stock no. 831-9175
  • Mfr. Part No. 1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
Subtotal (1 unit)
R 8 319,46(exc. VAT)
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