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

50116 Products showing for Fuses & Circuit Breakers

8 of 999+
In Stock
Rittal Earth Bar L. 450 mm x W. 15mm x H. 5 mm
  • RS Stock No. 826-2868
  • Mfr. Part No. 7113000
Subtotal (1 unit)
Kr. 443,28(exc. VAT)
Kr. 443,28/unit
In Stock
Eaton 100A GG Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 229-117
  • Mfr. Part No. C22G100
Subtotal (1 pack of 10 units)
Kr. 976,18(exc. VAT)
Kr. 976,18/pack
In Stock
RS Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 6A, Type C, 100V, 12 V, 133 V, 220 V, 240 V, 60 V AC,
  • RS Stock No. 791-3290
  • Mfr. Part No. A9F54106
Subtotal (1 unit)
Kr. 288,75(exc. VAT)
Kr. 288,75/unit
Stock information currently inaccessible
TE Connectivity Potter & Brumfield W54 Thermal Magnetic Circuit Breaker - 1-Pole, Panel, 10A Current Rating, 1000 A,
  • RS Stock No. 240-8919
  • Mfr. Part No. 1423674-6
Subtotal (1 unit)
Kr. 61,74(exc. VAT)
Kr. 61,74/unit
In Stock
Limitor Thermal Fuse 99 °C, 15 A, 250 V ac
  • RS Stock No. 797-6064
  • Mfr. Part No. SF 094 R
Subtotal (1 pack of 10 units)
Kr. 119,13(exc. VAT)
Kr. 11,913/unit
In Stock
RS PRO 5 A In-line Fuse Holder for 5 x 20 mm, 250 V
  • RS Stock No. 284-6487
Subtotal (1 pack of 10 units)
Kr. 260,28(exc. VAT)
Kr. 26,028/unit
In Stock
ABB 72 Plastic Consumer Unit, 125A, IEC 60670, EN 60439-3 IP65 MISTRAL65
  • RS Stock No. 811-1919
  • Mfr. Part No. 1SL1209A00 65P18X42
Subtotal (1 unit)
Kr. 1 439,91(exc. VAT)
Kr. 1 439,91/unit
In Stock
Eaton 6A D1 Bottle Fuse, E16 Thread Size, 500V ac
  • RS Stock No. 181-8647
  • Mfr. Part No. 6D16
Subtotal (1 unit)
Kr. 33,39(exc. VAT)
Kr. 33,39/unit
In Stock
RS PRO 4A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-346
Subtotal (1 pack of 10 units)
Kr. 34,89(exc. VAT)
Kr. 3,489/unit
In Stock
HENSEL ENYBOARD ENYBOARD Distribution Board 41A
  • RS Stock No. 117-118
  • Mfr. Part No. RK 1019 T
Subtotal (1 unit)
Kr. 877,10(exc. VAT)
Kr. 877,10/unit
In Stock
Littelfuse Non-Resettable Fuse 2.5 A, 125 V
  • RS Stock No. 738-2863
  • Mfr. Part No. 015402.5DR
Subtotal (1 pack of 10 units)
Kr. 192,84(exc. VAT)
Kr. 19,284/unit
Being discontinued
RS PRO 1.6A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-728
Subtotal (1 pack of 10 units)
Kr. 40,50(exc. VAT)
Kr. 4,05/unit
Being discontinued
RS PRO 3.15A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-621
Subtotal (1 pack of 10 units)
Kr. 38,32(exc. VAT)
Kr. 3,832/unit
In Stock
Schurter T9 T9 Thermal Magnetic Circuit Breaker - 1-Pole, Panel, 10A Current Rating, 240V ac, 32 V dc
  • RS Stock No. 539-3745
  • Mfr. Part No. 4404.0004
Subtotal (1 unit)
Kr. 41,76(exc. VAT)
Kr. 41,76/unit
In Stock
Mersen 2A GPV Glass Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 136-0528
  • Mfr. Part No. HP10M2
Subtotal (1 box of 10 units)
Kr. 1 662,45(exc. VAT)
Kr. 166,245/unit
In Stock
ETA 2 5700 Thermal Circuit Breaker - 1-Pole, Panel, 16A Current Rating, 25 A, 250V ac, 50 V dc
  • RS Stock No. 729-2764
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-16A
Subtotal (1 unit)
Kr. 334,18(exc. VAT)
Kr. 334,18/unit
In Stock
Eaton 2.5A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1486
Subtotal (1 pack of 10 units)
Kr. 16,52(exc. VAT)
Kr. 1,652/unit
In Stock
Littelfuse 6.3A M Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 769-0067
  • Mfr. Part No. 023406.3MXP
Subtotal (1 pack of 25 units)
Kr. 251,35(exc. VAT)
Kr. 10,054/unit
In Stock
RS PRO BS 1362 Fuse Kit
  • RS Stock No. 893-8546
Subtotal (1 unit)
Kr. 765,71(exc. VAT)
Kr. 765,71/unit
In Stock
Schurter 315mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 167-7998
  • Mfr. Part No. 0034.3112
Subtotal (1 pack of 10 units)
Kr. 27,11(exc. VAT)
Kr. 2,711/unit
1
8
2506
Results per page

Related links