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

Fuses - PCB
Fuses - PCB

47687 Products showing for Fuses & Circuit Breakers

2 / 999+
In Stock
Better World
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 3-Pole, 32A, Type D, 15 kA Breaking Capacity
  • RS Stock No. 211-2405
  • Mfr. Part No. M9F23332
Subtotal (1 unit)
MYR307.25
MYR307.25/unit
Temporarily out of stock
Eaton 400A Centred Tag Fuse NH03 500V ac
  • RS Stock No. 703-8756
  • Mfr. Part No. 400NHG03B
Subtotal (1 unit)
MYR80.38
MYR80.38/unit
Temporarily out of stock
SIBA 100A Ceramic Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 893-8509
  • Mfr. Part No. 50-140-06/100A
Subtotal (1 unit)
MYR99.31
MYR99.31/unit
Limited stock
Eaton 6A T Fibre Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 851-1246
  • Mfr. Part No. FNQ-6
Subtotal (1 unit)
MYR250.80
MYR250.80/unit
In Stock
Eaton 160A Rail Mount Fuse Holder for NH, 3P-Pole, 690V ac
  • RS Stock No. 765-2967
  • Mfr. Part No. TD00-D
Subtotal (1 unit)
MYR207.16
MYR207.16/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 16A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0181
Subtotal (1 unit)
MYR106.99
MYR106.99/unit
In Stock
Eaton 10A British Standard Fuse A2 660V ac, 73 mm
  • RS Stock No. 415-137
  • Mfr. Part No. TIA10
Subtotal (1 pack of 5 units)
MYR256.61
MYR51.322/unit
In Stock
Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 4-Pole, 40A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS Stock No. 734-9188
  • Mfr. Part No. A9F77440
Subtotal (1 unit)
MYR1,787.64
MYR1,787.64/unit
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
MYR187.62
MYR187.62/unit
In Stock
Siemens 250A NH Fuse NH1 500V ac
  • RS Stock No. 397-565
  • Mfr. Part No. 3NA3144
Subtotal (1 pack of 3 units)
MYR178.11
MYR59.37/unit
In Stock
Eaton 5A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-576
  • Mfr. Part No. TDC180-5A
Subtotal (1 pack of 10 units)
MYR43.14
MYR4.314/unit
Stocked by manufacturer
Eaton xEffect - FRCmM-NA Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA 305V ac
  • RS Stock No. 120-279
  • Mfr. Part No. 167108 FRCMM-40/4/003-G/A-NA
Subtotal (1 unit)
MYR1,695.33
MYR1,695.33/unit
In Stock
Better World
Schneider Electric Acti9 Acti9 iC60 Miniature Circuit Breaker, 3-Pole, 32A, Type C, 180 V dc DC, 15000 A Breaking
  • RS Stock No. 219-9286
  • Mfr. Part No. A9F94332
Subtotal (1 unit)
MYR1,697.66
MYR1,697.66/unit
Stocked by manufacturer
Schneider Electric Tap-Off Unit with Circuit Breaker, Canalis KS Series
  • RS Stock No. 759-378
  • Mfr. Part No. KSB32CP15F
Subtotal (1 unit)
MYR1,085.23
MYR1,085.23/unit
In Stock
Eaton 4A Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 181-8822
  • Mfr. Part No. C14M4
Subtotal (1 unit)
MYR11.85
MYR11.85/unit
In Stock
Siemens SIRIUS 3RV2 3 Phase Contactor Terminal Block Busbar Protector, 690 V
  • RS Stock No. 755-2971
  • Mfr. Part No. 3RV2925-5EB
Subtotal (1 unit)
MYR162.20
MYR162.20/unit
In Stock
Eaton 10A Red Car Fuse, 32V dc
  • RS Stock No. 848-2558
  • Mfr. Part No. ATC-10
Subtotal (1 unit)
MYR12.40
MYR12.40/unit
In Stock
Eaton Memshield 3 Memshield 3 1 Phase Distribution Board 63A 10 Way
  • RS Stock No. 124-2997
  • Mfr. Part No. EAM10 EAM10
Subtotal (1 unit)
MYR829.57
MYR829.57/unit
Temporarily out of stock
WAGO 32A Fuse Holder for 10 x 38 mm, 1P-Pole, 24V dc
  • RS Stock No. 279-1650
  • Mfr. Part No. 811-314
Subtotal (1 unit)
MYR135.89
MYR135.89/unit
In Stock
Eaton xPole Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A, 10 kA 230V ac
  • RS Stock No. 227-0711
  • Mfr. Part No. 267444 PFGM-40/2/003-A
Subtotal (1 unit)
MYR306.80
MYR306.80/unit
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