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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

51811 Products showing for Fuses & Circuit Breakers

1 of 999+
Temporarily out of stock
Schneider Electric TeSys Handle Mounting Tool for use with TeSys GV-U
  • RS Stock No. 211-2540
  • Mfr. Part No. GVAPL01
Subtotal (1 unit)
£75.52(exc. VAT)
£75.52/unit
Stocked by manufacturer
Schneider Electric Straight Busbar Trunking, 25A, 3 m, Canalis Series
  • RS Stock No. 219-8847
  • Mfr. Part No. KBA25ED2302W
Subtotal (1 pack of 6 units)
£431.592(exc. VAT)
£71.932/unit
Stocked by manufacturer
ABB, SACE Tmax XT, XT1 Molded Case Circuit Breaker 3-Pole 125A, Breaking Capacity 50 kA
  • RS Stock No. 192-0821
  • Mfr. Part No. 1SDA067417R1
Subtotal (1 unit)
£326.04(exc. VAT)
£326.04/unit
In Stock
RS Better World
Schneider Electric Acti9 SEA9 3 Phase Distribution Board 250A 24 Way
  • RS Stock No. 125-1415
  • Mfr. Part No. SEA9BN24PEV
Subtotal (1 unit)
£789.72(exc. VAT)
£789.72/unit
In Stock
ABB, SACE Tmax T, T5N Molded Case Circuit Breaker 3-Pole 400A, Breaking Capacity 20 kA, Fixed
  • RS Stock No. 232-0095
  • Mfr. Part No. 1SDA054437R1 T5N400 FF TMA 400A
Subtotal (1 unit)
£1,156.32(exc. VAT)
£1,156.32/unit
Currently unavailable
Schneider Electric Easy9 Easy9 Miniature Circuit Breaker, 1-Pole, 16A, Type C, 230V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8622
  • Mfr. Part No. EZ9F66116
Subtotal (1 unit)
£2.02(exc. VAT)
£2.02/unit
In Stock
RS Better World
Schneider Electric Acti9 Terminal Block for use with Acti9 Isobar B Type Distribution board, Direct Connection
  • RS Stock No. 806-7304
  • Mfr. Part No. SEA9TB1254
Subtotal (1 unit)
£48.85(exc. VAT)
£48.85/unit
In Stock
Allen Bradley Miniature Circuit Breaker, 1-Pole, 4A, Type C, 230V ac AC, 48 V dc DC
  • RS Stock No. 264-9403
  • Mfr. Part No. 1489-M1C040
Subtotal (1 unit)
£46.67(exc. VAT)
£46.67/unit
A&C Q1 Campaign
Complete Fuse Protection for Critical Operations
Our fuse range delivers reliable circuit protection to keep automated processes operating without interruption.
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In Stock
Europa EUR1 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A, 10 kA 415V ac
  • RS Stock No. 210-4747
  • Mfr. Part No. EUR125.30/2A
Subtotal (1 unit)
£42.60(exc. VAT)
£42.60/unit
Temporarily out of stock
Lovato Modulo P1MB Miniature Circuit Breaker, 1-Pole, 16A, Type B, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5558
  • Mfr. Part No. P1MB1PB16
Subtotal (1 unit)
£17.39(exc. VAT)
£17.39/unit
In Stock
Legrand DX Series Residual Current Device, 80A, 1-Pole, 30 mA, Type AC, 80 A, 250 V dc 230V ac
  • RS Stock No. 863-7776
  • Mfr. Part No. 4 115 07
Subtotal (1 unit)
£71.99(exc. VAT)
£71.99/unit
Currently unavailable
Schneider Electric Easy9 Easy9 Miniature Circuit Breaker, 1-Pole, 10A, Type C, 230V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8628
  • Mfr. Part No. EZ9F66110
Subtotal (1 unit)
£2.02(exc. VAT)
£2.02/unit
In Stock
Littelfuse 10A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-3120
  • Mfr. Part No. 0217010.MXP
Subtotal (1 pack of 10 units)
£3.20(exc. VAT)
£0.32/unit
In Stock
RS Better World
Schneider Electric, ComPact NSX100F, C10F Circuit Breaker 3-Pole 100A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 254-6286
  • Mfr. Part No. C10F3TM100
Subtotal (1 unit)
£529.13(exc. VAT)
£529.13/unit
Temporarily out of stock
Schneider Electric 3 Phase Surge Arrester, 50 kA, 1.5 kV, DIN Rail
  • RS Stock No. 276-8728
  • Mfr. Part No. A9L16482
Subtotal (1 unit)
£1,301.34(exc. VAT)
£1,301.34/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 40A Current Rating, 1-Pole, Type AB, Easy9
  • RS Stock No. 850-8662
  • Mfr. Part No. EZ9D16840
Subtotal (1 unit)
£28.84(exc. VAT)
£28.84/unit
In Stock
Schneider Electric Linergy Linergy 3 Phase Busbar, 690 V, 45 mm Pitch
  • RS Stock No. 400-1990
  • Mfr. Part No. GV2G245
Subtotal (1 unit)
£12.18(exc. VAT)
£12.18/unit
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 16A, Type C, 230V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 230-0961
  • Mfr. Part No. 239066 FAZ6-C16/1N
Subtotal (1 unit)
£28.71(exc. VAT)
£28.71/unit
In Stock
Eaton 32A Rail Mount Fuse Holder, 1P-Pole, 660V ac
  • RS Stock No. 418-467
  • Mfr. Part No. CM32F
Subtotal (1 unit)
£21.06(exc. VAT)
£21.06/unit
In Stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX250F Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 254-6352
  • Mfr. Part No. C25F3
Subtotal (1 unit)
£451.84(exc. VAT)
£451.84/unit
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