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

49836 Products showing for Fuses & Circuit Breakers

5 of 999+
Eaton 10A Red Automotive Car Fuse, 32V dc No
  • RS Stock No. 848-2558
  • Mfr. Part No. ATC-10
Each
Kr. 10,75(exc. VAT)
Eaton 32A F Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 489-4641
  • Mfr. Part No. FWP-32A14F
Each
Kr. 110,92(exc. VAT)
F Lutze Ltd Copper Bus Bar Interconnection Strip, 1 Piece pieces
  • RS Stock No. 891-8962
  • Mfr. Part No. 716426
Each (In a Pack of 5)
Kr. 423,624(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 10A, 125V ac/dc
  • RS Stock No. 541-3322P
  • Mfr. Part No. 0251010.HAT1L
Each (Supplied in a Bag)
Kr. 13,602(exc. VAT)
RS PRO 2A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 610-9771
Each (In a Pack of 10)
Kr. 6,457(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 10A Curve C, 440V AC, 133V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-6962
  • Mfr. Part No. A9F04310
Each
Kr. 1 432,75(exc. VAT)
Better World
Schneider Electric Acti 9 Acti9 iC60N MCB, 3+N, 32A Curve C, 240V AC, 133V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-7135
  • Mfr. Part No. A9F04732
Each
Kr. 2 282,05(exc. VAT)
Better World
Schneider Electric Acti9 Acti9 iDT40K MCB, 1+N, 10A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 238-3411
  • Mfr. Part No. A9P71610
Each
Kr. 309,45(exc. VAT)
ABB 125A Centred Tag Fuse, NH00, 500V
  • RS Stock No. 779-9987
  • Mfr. Part No. OFAF00H125 1SCA022627R1630
Each
Kr. 75,22(exc. VAT)
Schneider Electric RCBO, 16A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 212-247
  • Mfr. Part No. A9D17316
Each
Kr. 3 489,43(exc. VAT)
Siemens 63A Bottle Fuse Holder, 1P, 400V ac
  • RS Stock No. 622-0711
  • Mfr. Part No. 5SG1701
Each
Kr. 93,12(exc. VAT)
Siemens 25A D02 Neozed Fuse, gR, 400V
  • RS Stock No. 202-7074
  • Mfr. Part No. 5SE1325
Each (In a Pack of 10)
Kr. 98,757(exc. VAT)
SIBA 250A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1836
  • Mfr. Part No. 9005805.250
Each
Kr. 80,24(exc. VAT)
Siemens 20A D02 Neozed Fuse, gR, 400V
  • RS Stock No. 202-7123
  • Mfr. Part No. 5SE1320
Each (In a Pack of 10)
Kr. 97,814(exc. VAT)
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5140
  • Mfr. Part No. 3RV1915-1CB
Each
Kr. 177,21(exc. VAT)
SIBA 315mA FF Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 736-1412
  • Mfr. Part No. 70-172-40/0.315A
Each
Kr. 63,86(exc. VAT)
RS PRO 800mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-554
Each (In a Pack of 10)
Kr. 3,877(exc. VAT)
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 610-9816
Each (In a Pack of 10)
Kr. 6,457(exc. VAT)
Schneider Electric A9W RCD, 25A, 2 Pole, 30mA, Type A, 230-240V ac
  • RS Stock No. 212-178
  • Mfr. Part No. A9W21225
Each
Kr. 1 294,09(exc. VAT)
Legrand for use with Terminal Shields
  • RS Stock No. 266-3048
  • Mfr. Part No. 0 016 90
1 Box of 10
Kr. 525,73(exc. VAT)
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