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

5 of 999+
In Stock
NEMIQ Cylindrical Fuse Kit
  • RS Stock No. 756-527
  • Mfr. Part No. AS RSRGS 120
Subtotal (1 unit)
Kr. 170,80(exc. VAT)
Kr. 170,80/unit
In Stock
Mersen 16A NH Fuse NH000
  • RS Stock No. 270-3066
  • Mfr. Part No. K222097 / NH000GG50V16
Subtotal (1 box of 3 units)
Kr. 421,389(exc. VAT)
Kr. 140,463/unit
Temporarily out of stock
WAGO 787 Electronic Circuit Breaker 0.5A, DIN Rail
  • RS Stock No. 279-4125
  • Mfr. Part No. 787-2861/050-000
Subtotal (1 unit)
Kr. 1 059,46(exc. VAT)
Kr. 1 059,46/unit
In Stock
Littelfuse 1A Black Car Fuse, 32V dc
  • RS Stock No. 787-4110
  • Mfr. Part No. 0287001.PXCN
Subtotal (1 pack of 10 units)
Kr. 55,37(exc. VAT)
Kr. 5,537/unit
In Stock
Eaton 500mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1240
  • Mfr. Part No. S500-500-R
Subtotal (1 pack of 10 units)
Kr. 26,46(exc. VAT)
Kr. 2,646/unit
In Stock
RS PRO 30 A In-line Fuse Holder for 19 x 18.6 mm, 32 V dc
  • RS Stock No. 284-6489
Subtotal (1 pack of 5 units)
Kr. 268,01(exc. VAT)
Kr. 53,602/unit
In Stock
Eaton PKE Connecting Cable for use with DS7-SWD
  • RS Stock No. 120-701
  • Mfr. Part No. 168970 PKE32-COM
Subtotal (1 unit)
Kr. 463,89(exc. VAT)
Kr. 463,89/unit
Temporarily out of stock
Phoenix Contact TCP 0.5A Thermal Circuit Breaker - 1-Pole, Base, 500mA Current Rating, 250V ac, 65 V dc
  • RS Stock No. 170-3785
  • Mfr. Part No. 0712152
Subtotal (1 box of 20 units)
Kr. 2 868,84(exc. VAT)
Kr. 143,442/unit
Temporarily out of stock
Siemens SENTRON 5SJ4 Miniature Circuit Breaker, 1-Pole, 10A, Type C, 440V ac AC, 14 kA Breaking Capacity
  • RS Stock No. 202-7071
  • Mfr. Part No. 5SJ4110-7HG40
Subtotal (1 unit)
Kr. 437,92(exc. VAT)
Kr. 437,92/unit
In Stock
RS PRO 6.3A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 611-0018
Subtotal (1 pack of 10 units)
Kr. 56,18(exc. VAT)
Kr. 5,618/unit
In Stock
RS Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 4A, Type B, 400V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 776-6760
  • Mfr. Part No. A9F03104
Subtotal (1 unit)
Kr. 215,53(exc. VAT)
Kr. 215,53/unit
In Stock
RS PRO 250mA T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6060
Subtotal (1 pack of 10 units)
Kr. 82,14(exc. VAT)
Kr. 8,214/unit
In Stock
RS PRO 15A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 177-8129
Subtotal (1 pack of 20 units)
Kr. 190,42(exc. VAT)
Kr. 9,521/unit
Being discontinued
RS PRO 500mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-463
Subtotal (1 pack of 10 units)
Kr. 38,21(exc. VAT)
Kr. 3,821/unit
In Stock
Schurter 1A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 777-7473
  • Mfr. Part No. 0034.3117
Subtotal (1 pack of 10 units)
Kr. 54,23(exc. VAT)
Kr. 5,423/unit
In Stock
RS Better World
Schneider Electric Linergy Linergy 3 Phase Busbar, 690 V, 54 mm Pitch
  • RS Stock No. 608-8242
  • Mfr. Part No. GV2G454
Subtotal (1 unit)
Kr. 243,21(exc. VAT)
Kr. 243,21/unit
In Stock
Wickmann 10A Red Car Fuse, 58V dc
  • RS Stock No. 174-0759
  • Mfr. Part No. 0997010.WXN
Subtotal (1 pack of 10 units)
Kr. 96,60(exc. VAT)
Kr. 9,66/unit
In Stock
Littelfuse 250A 68.58 x 19.05 x 10.67 mm, Panel Single Terminal Fuse Fuse Block, 32V
  • RS Stock No. 878-3946
  • Mfr. Part No. 02980900Z
Subtotal (1 unit)
Kr. 258,93(exc. VAT)
Kr. 258,93/unit
In Stock
SIBA 1A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3220
  • Mfr. Part No. 70-007-33/1A
Subtotal (1 pack of 10 units)
Kr. 67,87(exc. VAT)
Kr. 6,787/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 2A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0175
Subtotal (1 unit)
Kr. 88,66(exc. VAT)
Kr. 88,66/unit
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