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

50166 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Phoenix Contact PTCB PTCB E1 Electronic Circuit Breaker 0.63A 10V dc, 30 V dc, DIN Rail
  • RS Stock No. 494-813
  • Mfr. Part No. 1441495
Subtotal (1 unit)
Kr. 296,10(exc. VAT)
Kr. 296,10/unit
In Stock
RS Better World
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 6A, Type B, 440V ac AC, 60 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 489-6530
  • Mfr. Part No. 5SY6106-6
Subtotal (1 unit)
Kr. 220,68(exc. VAT)
Kr. 220,68/unit
In Stock
RS Better World
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)
Kr. 1 029,49(exc. VAT)
Kr. 1 029,49/unit
In Stock
Limitor Thermal Fuse 150 °C, 5 A, 250 V ac
  • RS Stock No. 124-5062
  • Mfr. Part No. A8-5AF
Subtotal (1 pack of 5 units)
Kr. 67,99(exc. VAT)
Kr. 13,598/unit
In Stock
RS PRO 10A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6091
Subtotal (1 pack of 10 units)
Kr. 69,39(exc. VAT)
Kr. 6,939/unit
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)
Kr. 32,03(exc. VAT)
Kr. 32,03/unit
In Stock
SIBA 8A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 418-9602
  • Mfr. Part No. 70-059-61 8A
Subtotal (1 pack of 10 units)
Kr. 78,59(exc. VAT)
Kr. 7,859/unit
In Stock
Eaton 500mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1559
  • Mfr. Part No. S501-500-R
Subtotal (1 pack of 10 units)
Kr. 59,39(exc. VAT)
Kr. 5,939/unit
In Stock
Eaton 10A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 412-324
  • Mfr. Part No. TDC10-10A
Subtotal (1 pack of 10 units)
Kr. 53,85(exc. VAT)
Kr. 5,385/unit
In Stock
Littelfuse 0.4 A Resettable Fuse, 240 V dc
  • RS Stock No. 495-0757
  • Mfr. Part No. LVR040K
Subtotal (1 pack of 5 units)
Kr. 50,49(exc. VAT)
Kr. 10,098/unit
In Stock
Littelfuse 5A F Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 738-3138
  • Mfr. Part No. 0KLK005.T
Subtotal (1 unit)
Kr. 223,57(exc. VAT)
Kr. 223,57/unit
In Stock
ETA 3130 Thermal Circuit Breaker - 1-Pole, Snap-in, 15A Current Rating, 25 A, 240V ac, 28 V dc
  • RS Stock No. 212-1913
  • Mfr. Part No. 3130-F110-P7T1-W02Q-15A
Subtotal (1 unit)
Kr. 252,89(exc. VAT)
Kr. 252,89/unit
In Stock
Littelfuse 15A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0057
  • Mfr. Part No. 0314015.HXP
Subtotal (1 pack of 10 units)
Kr. 105,49(exc. VAT)
Kr. 10,549/unit
In Stock
RS Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 1-Pole, 10A, Type B, 440V ac AC, 60 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 539-8144
  • Mfr. Part No. 2CDS211001R0105 SH201-B10
Subtotal (1 unit)
Kr. 149,98(exc. VAT)
Kr. 149,98/unit
In Stock
Socomec 25A Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 122-5268
  • Mfr. Part No. 60120025
Subtotal (1 pack of 10 units)
Kr. 120,07(exc. VAT)
Kr. 12,007/unit
In Stock
Phoenix Contact PTCB Electronic Circuit Breaker 2A 24V, DIN Rail Type E
  • RS Stock No. 207-2803
  • Mfr. Part No. 2909903
Subtotal (1 unit)
Kr. 424,16(exc. VAT)
Kr. 424,16/unit
In Stock
Phoenix Contact PTCB Electronic Circuit Breaker 8A 24V, DIN Rail Type E
  • RS Stock No. 207-2796
  • Mfr. Part No. 2908262
Subtotal (1 unit)
Kr. 458,25(exc. VAT)
Kr. 458,25/unit
In Stock
Phoenix Contact PTCB Electronic Circuit Breaker 4A 24V, DIN Rail Type E
  • RS Stock No. 207-2795
  • Mfr. Part No. 2908261
Subtotal (1 unit)
Kr. 453,28(exc. VAT)
Kr. 453,28/unit
In Stock
Bourns 300A Tag Fuse 66 mm 800V ac/dc, 24.1 mm
  • RS Stock No. 254-4124
  • Mfr. Part No. PF-FB1-300
Subtotal (1 unit)
Kr. 1 935,51(exc. VAT)
Kr. 1 935,51/unit
In Stock
Europa Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 210-4729
  • Mfr. Part No. EUBLMC16B30A
Subtotal (1 unit)
Kr. 755,77(exc. VAT)
Kr. 755,77/unit
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