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

49496 Products showing for Fuses & Circuit Breakers

1 / 999+
In Stock
RS PRO 4A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-346
Subtotal (1 pack of 10 units)
MYR14.79
MYR1.479/unit
Stocked by manufacturer
Schneider Electric A9Z Series Residual Current Circuit Breaker, 63A, 4-Pole, 100 mA, Type A-SI, 1500 A 415V ac
  • RS Stock No. 212-297
  • Mfr. Part No. A9Z32463
Subtotal (1 unit)
MYR3,087.97
MYR3,087.97/unit
In Stock
Littelfuse Fuse Holder Accessory Blade Fuse Holder
  • RS Stock No. 738-2784
  • Mfr. Part No. FHAC0001ZXJ
Subtotal (1 unit)
MYR30.36
MYR30.36/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 16A Centred Tag Fuse NH000 500V ac
  • RS Stock No. 703-8623
  • Mfr. Part No. 16NHG000B
Subtotal (1 unit)
MYR38.82
MYR38.82/unit
Limited 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
In Stock
Schurter 12A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 703-2666
  • Mfr. Part No. 8020.0603.G
Subtotal (1 pack of 10 units)
MYR53.50
MYR5.35/unit
Temporarily out of stock
Eaton 3 Phase Surge Protector, 15 kA, 415 V ac, DIN Rail
  • RS Stock No. 847-3677
  • Mfr. Part No. 102036 FAZ-XAA-NA110-415VAC
Subtotal (1 unit)
MYR228.11
MYR228.11/unit
In Stock
ABB System Pro M Compact SU200 M Miniature Circuit Breaker, 2-Pole, 16A, Type C, 440V ac AC, 440 V dc DC, 10 kA Breaking
  • RS Stock No. 231-9739
  • Mfr. Part No. 2CDS272337R0164 SU202M-C16
Subtotal (1 box of 1 unit)
MYR821.10
MYR821.10/box
In Stock
Eaton 400A Rail Mount Fuse Holder for NH, 1P-Pole, 690V ac
  • RS Stock No. 765-2958
  • Mfr. Part No. SD3-D
Subtotal (1 unit)
MYR265.96
MYR265.96/unit
In Stock
RS Better World
ABB System Pro M Compact S200M Miniature Circuit Breaker, 2-Pole, 10A, Type C, 440V ac AC, 125 V dc DC, 10 kA Breaking
  • RS Stock No. 132-071
  • Mfr. Part No. 2CDS272001R0104 S202M-C10
Subtotal (1 unit)
MYR347.73
MYR347.73/unit
In Stock
Phoenix Contact Surge Protector, 20 kA, 190 V, DIN Rail
  • RS Stock No. 207-2725
  • Mfr. Part No. 2906741
Subtotal (1 unit)
MYR730.75
MYR730.75/unit
In Stock
Schneider Electric Acti9 Reflex iC60 Miniature Circuit Breaker, 3-Pole, 16A, Type C, 230V ac AC, 48 V dc DC, 30 kA
  • RS Stock No. 130-874
  • Mfr. Part No. A9C65316
Subtotal (1 unit)
MYR3,711.28
MYR3,711.28/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9562
  • Mfr. Part No. 00950011XXN
Subtotal (1 unit)
MYR353.55
MYR353.55/unit
In Stock
RS PRO Earthing Kit
  • RS Stock No. 528-983
Subtotal (1 unit)
MYR113.28
MYR113.28/unit
In Stock
RS PRO Industrial Surge Protector, 40 kA, 2.8 kV, DIN Rail
  • RS Stock No. 101-772
Subtotal (1 unit)
MYR267.27
MYR267.27/unit
Stocked by manufacturer
Siemens Surge Arrester, 5 kA, 2 kV, Screw
  • RS Stock No. 299-873
  • Mfr. Part No. 5SD7432-6
Subtotal (1 unit)
MYR1,162.88
MYR1,162.88/unit
In Stock
SIBA 8A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 783-3380
  • Mfr. Part No. 70-059-60/8A
Subtotal (1 pack of 10 units)
MYR17.03
MYR1.703/unit
In Stock
Eaton 4A Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 703-8412
  • Mfr. Part No. C14G4
Subtotal (1 pack of 10 units)
MYR123.42
MYR12.342/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 16A, Type D, 100V, 12 V, 133 V, 220 V, 240 V, 60 V AC,
  • RS Stock No. 791-3473
  • Mfr. Part No. A9F55116
Subtotal (1 unit)
MYR289.25
MYR289.25/unit
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