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

50168 Products showing for Fuses & Circuit Breakers

4 of 999+
In Stock
Eaton 4A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 228-662
  • Mfr. Part No. C10G4
Subtotal (1 pack of 10 units)
Kr. 225,02(exc. VAT)
Kr. 225,02/pack
In Stock
RS PRO 6.3A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-330
Subtotal (1 pack of 10 units)
Kr. 34,89(exc. VAT)
Kr. 3,489/unit
In Stock
Eaton 1A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8368
  • Mfr. Part No. C10G1
Subtotal (1 pack of 10 units)
Kr. 180,25(exc. VAT)
Kr. 18,025/unit
In Stock
Littelfuse Non-Resettable Fuse 500mA, 125V ac/dc
  • RS Stock No. 541-3350
  • Mfr. Part No. 0451.500MRL
Subtotal (1 pack of 10 units)
Kr. 155,75(exc. VAT)
Kr. 15,575/unit
In Stock
Mersen 25A Rail Mount Fuse Holder for 8 x 32 mm, 2P-Pole, 400V ac
  • RS Stock No. 189-5328
  • Mfr. Part No. Q1062683 / CMC82
Subtotal (1 unit)
Kr. 183,71(exc. VAT)
Kr. 183,71/unit
In Stock
Eaton 5A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1313
  • Mfr. Part No. S506-5-R
Subtotal (1 pack of 10 units)
Kr. 13,17(exc. VAT)
Kr. 1,317/unit
In Stock
Littelfuse 2A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4684
  • Mfr. Part No. 0215002.MXP
Subtotal (1 pack of 10 units)
Kr. 132,41(exc. VAT)
Kr. 13,241/unit
Temporarily out of stock
Eaton 63A 5 ST Ceramic Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 489-4562
  • Mfr. Part No. C22G63
Subtotal (1 pack of 10 units)
Kr. 596,21(exc. VAT)
Kr. 59,621/unit
In Stock
Siemens 630A NH Fuse NH3 690V ac/dc
  • RS Stock No. 269-8331
  • Mfr. Part No. 3ND1372
Subtotal (1 pack of 3 units)
Kr. 3 812,949(exc. VAT)
Kr. 1 270,983/unit
In Stock
RS PRO 30 A In-line Fuse Holder for 19 x 18.6 mm, 32 V dc
  • RS Stock No. 284-6488
Subtotal (1 pack of 5 units)
Kr. 229,93(exc. VAT)
Kr. 45,986/unit
In Stock
Schurter Surface Mount Fuse 2 A, 250 V ac
  • RS Stock No. 270-7940
  • Mfr. Part No. 3403.0169.11
Subtotal (1 unit)
Kr. 11,55(exc. VAT)
Kr. 11,55/unit
Temporarily out of stock
Lovato 32A Rail Mount Fuse Holder for 10 x 38 mm, 2P-Pole, 690V ac
  • RS Stock No. 188-1619
  • Mfr. Part No. FB01F2P
Subtotal (1 unit)
Kr. 97,01(exc. VAT)
Kr. 97,01/unit
In Stock
RS PRO 3.15A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9709
Subtotal (1 pack of 10 units)
Kr. 46,89(exc. VAT)
Kr. 4,689/unit
In Stock
Mersen 6A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 188-6978
  • Mfr. Part No. K215128 / FR10GG50V6
Subtotal (1 pack of 10 units)
Kr. 220,46(exc. VAT)
Kr. 22,046/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 4A, Type C, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7703
  • Mfr. Part No. 2CDS252001R0044 S202-C4
Subtotal (1 unit)
Kr. 889,11(exc. VAT)
Kr. 889,11/unit
In Stock
Littelfuse 2A Grey Car Fuse, 32V dc
  • RS Stock No. 787-4126
  • Mfr. Part No. 0287002.PXCN
Subtotal (1 pack of 10 units)
Kr. 37,44(exc. VAT)
Kr. 3,744/unit
In Stock
TE Connectivity W58 Thermal Circuit Breaker - 1-Pole, Direct, 25A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-7994
  • Mfr. Part No. W58-XC4C12A-25
Subtotal (1 unit)
Kr. 102,96(exc. VAT)
Kr. 102,96/unit
In Stock
RS Better World
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 1A, Type C, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2354
  • Mfr. Part No. M9F22101
Subtotal (1 unit)
Kr. 264,61(exc. VAT)
Kr. 264,61/unit
In Stock
Eaton 315mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-8651
  • Mfr. Part No. S506-315-R
Subtotal (1 pack of 10 units)
Kr. 33,05(exc. VAT)
Kr. 3,305/unit
In Stock
Eaton Non-Resettable Fuse, Radial 400 mA, 250 V
  • RS Stock No. 769-3224
  • Mfr. Part No. SR-5-400MA-BK
Subtotal (1 pack of 10 units)
Kr. 64,24(exc. VAT)
Kr. 6,424/unit
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