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
Earth & Lightning Protection
Fuse Holders & Accessories
Fuses
Fuses - PCB

52867 Products showing for Fuses & Circuit Breakers

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In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 10A, Type B, 400V ac AC, 10 kA Breaking Capacity
  • RS stock no. 231-9660
  • Mfr. Part No. 2CDS251001R0105 S201 B 10A - 10 KA
Subtotal (1 box of 1 unit)
R 414,74(exc. VAT)
R 414,74/box
In Stock
RS Better World
Siemens, SENTRON, SENTRON Molded Case Circuit Breaker 3-Pole 80A, Breaking Capacity 25 kA, Fixed
  • RS stock no. 874-4341
  • Mfr. Part No. 3VA1180-3EF36-0AA0
Subtotal (1 unit)
R 5 351,53(exc. VAT)
R 5 351,53/unit
In Stock
RS Better World
Schneider Electric 130V Fixed Shunt Trip Release Circuit Trip
  • RS stock no. 219-9354
  • Mfr. Part No. LV429386
Subtotal (1 unit)
R 2 866,21(exc. VAT)
R 2 866,21/unit
In Stock
ABB, SACE Tmax XT, XT1B Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 3 kA, Fixed
  • RS stock no. 231-9295
  • Mfr. Part No. 1SDA066809R1 XT1B 160 TMD 160A FF
Subtotal (1 unit)
R 7 414,28(exc. VAT)
R 7 414,28/unit
Temporarily out of stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX100N Molded Case Circuit Breaker 3-Pole 100A, Breaking Capacity 90 kA, Fixed
  • RS stock no. 254-6300
  • Mfr. Part No. C10N3TM100
Subtotal (1 unit)
R 13 583,21(exc. VAT)
R 13 583,21/unit
In Stock
ABB, SACE Tmax XT, XT1C Molded Case Circuit Breaker 3-Pole 63A, Breaking Capacity 4 kA, Fixed
  • RS stock no. 232-0247
  • Mfr. Part No. 1SDA067395R1 XT1C 160 TMD 63A FF
Subtotal (1 unit)
R 4 886,52(exc. VAT)
R 4 886,52/unit
Stocked by manufacturer
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3458
  • Mfr. Part No. A9F77120
Subtotal (1 unit)
R 209,00(exc. VAT)
R 209,00/unit
In Stock
TE Connectivity W23 Thermal Circuit Breaker -, 50A Current Rating 1-Pole, Direct
  • RS stock no. 782-0882
  • Mfr. Part No. W23-X1A1G-50
Subtotal (1 unit)
R 640,83(exc. VAT)
R 640,83/unit
Stocked by manufacturer
RS Better World
Siemens, SENTRON, 3VA1 Molded Case Circuit Breaker 3-Pole 100A, Breaking Capacity 55 kA
  • RS stock no. 209-6749
  • Mfr. Part No. 3VA1110-5EE36-0AA0
Subtotal (1 unit)
R 6 175,20(exc. VAT)
R 6 175,20/unit
Stocked by manufacturer
Schneider Electric, ComPact, C08 MCCB 4-Pole 800A, Breaking Capacity 50 kA, Fixed
  • RS stock no. 654-490
  • Mfr. Part No. C080N450FM
Subtotal (1 unit)
R 88 625,41(exc. VAT)
R 88 625,41/unit
In Stock
RS Better World
ABB, Protecta, XT1D Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 36 kA, DIN Rail
  • RS stock no. 831-9181
  • Mfr. Part No. 1SDA068208R1 XT1D 160 3p F F
Subtotal (1 unit)
R 6 814,09(exc. VAT)
R 6 814,09/unit
In 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 2 160,50(exc. VAT)
R 432,10/unit
In Stock
RS PRO Earthing Kit
  • RS stock no. 528-983
Subtotal (1 unit)
R 556,36(exc. VAT)
R 556,36/unit
Stocked by manufacturer
RS Better World
Siemens, SENTRON, SENTRON Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 55 kA, Surface
  • RS stock no. 210-1629
  • Mfr. Part No. 3VA1116-5EE32-0AA0
Subtotal (1 unit)
R 10 704,84(exc. VAT)
R 10 704,84/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
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 72 V dc DC, 10 kA Breaking
  • RS stock no. 776-3446
  • Mfr. Part No. A9F77110
Subtotal (1 unit)
R 209,00(exc. VAT)
R 209,00/unit
Last RS stock
TE Connectivity W57 Thermal Circuit Breaker -, 10A Current Rating 1-Pole, Direct
  • RS stock no. 782-0867
  • Mfr. Part No. W57-XB7A4A10-10
Subtotal (1 unit)
R 84,38(exc. VAT)
R 84,38/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 548,31(exc. VAT)
R 548,31/unit
In Stock
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker, Fixed
  • RS stock no. 221-0946
  • Mfr. Part No. LV429406
Subtotal (1 unit)
R 4 304,71(exc. VAT)
R 4 304,71/unit
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 10A, Type C, 400V ac AC, 72 V dc DC, 10 kA Breaking Capacity
  • RS stock no. 383-2024
  • Mfr. Part No. 5SY4110-7
Subtotal (1 unit)
R 383,00(exc. VAT)
R 383,00/unit
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