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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

52855 Products showing for Fuses & Circuit Breakers

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In Stock
Europa EUC1P EUC Miniature Circuit Breaker, 1-Pole, 4A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6490
  • Mfr. Part No. EUC1P4C
Subtotal (1 unit)
£10.24(exc. VAT)
£10.24/unit
Temporarily out of stock
RS PRO Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0190
Subtotal (1 unit)
£8.66(exc. VAT)
£8.66/unit
In Stock
RS PRO 16A Rail Mount Fuse Holder for 5 x 20 mm, 600V ac
  • RS Stock No. 501-809
Subtotal (1 pack of 10 units)
£44.17(exc. VAT)
£4.417/unit
In Stock
RS PRO FT Fuse Kit
  • RS Stock No. 893-8543
Subtotal (1 unit)
£173.29(exc. VAT)
£173.29/unit
In Stock
Schneider Electric TeSys TeSyS GV Thermal Circuit Breaker -, 65A Current Rating 3-Pole, Direct
  • RS Stock No. 272-937
  • Mfr. Part No. GV3P65
Subtotal (1 unit)
£250.83(exc. VAT)
£250.83/unit
In Stock
Eaton 2A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1341
  • Mfr. Part No. S506-2-R
Subtotal (1 pack of 10 units)
£1.77(exc. VAT)
£1.77/pack
In Stock
Eaton xPole PXL Miniature Circuit Breaker, 3-Pole, 16A, Type C, 400V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 490-107
  • Mfr. Part No. 236426 PXL-C16/3
Subtotal (1 unit)
£30.10(exc. VAT)
£30.10/unit
In Stock
RS Better World
ABB System Pro M Compact S200M Miniature Circuit Breaker, 2-Pole, 6A, Type C, 440V ac AC, 125 V dc DC, 10 kA Breaking
  • RS Stock No. 132-015
  • Mfr. Part No. 2CDS272001R0064 S202M-C6
Subtotal (1 unit)
£57.47(exc. VAT)
£57.47/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 50A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3587
  • Mfr. Part No. A9F55350
Subtotal (1 unit)
£157.24(exc. VAT)
£157.24/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 40A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3578
  • Mfr. Part No. A9F55340
Subtotal (1 unit)
£132.75(exc. VAT)
£132.75/unit
In Stock
ABB SN201 SN201 Miniature Circuit Breaker, 1-Pole, 4A, Type C, 230V ac AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3468
  • Mfr. Part No. 2CSS245102R0044 SN201 L C4-L
Subtotal (1 unit)
£18.64(exc. VAT)
£18.64/unit
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 20A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6594
  • Mfr. Part No. EUC3P20C
Subtotal (1 unit)
£22.40(exc. VAT)
£22.40/unit
In Stock
RS PRO Earthing Strap Copper Copper
  • RS Stock No. 264-9253
Subtotal (1 pack of 5 units)
£43.15(exc. VAT)
£8.63/unit
In Stock
Europa EUC1P EUC1P Miniature Circuit Breaker, 1-Pole, 1A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6493
  • Mfr. Part No. EUC1P1C
Subtotal (1 unit)
£5.61(exc. VAT)
£5.61/unit
In Stock
ABB SN201L SN201 Miniature Circuit Breaker, 1-Pole, 2A, Type C, 230V ac AC, 4.5 kA Breaking Capacity
  • RS Stock No. 191-9456
  • Mfr. Part No. 2CSS245102R0024 SN201 L C2-L
Subtotal (1 unit)
£14.26(exc. VAT)
£14.26/unit
In Stock
Eaton 20A Rail Mount Fuse Holder for A1, 1P-Pole, 690V ac
  • RS Stock No. 221-601
  • Mfr. Part No. RS20P/G/WHI
Subtotal (1 unit)
£33.26(exc. VAT)
£33.26/unit
In Stock
Eaton 13A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-605
  • Mfr. Part No. TDC180-13A
Subtotal (1 pack of 10 units)
£5.48(exc. VAT)
£0.548/unit
In Stock
Europa EUC2P EUC2P Miniature Circuit Breaker, 2-Pole, 16A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6541
  • Mfr. Part No. EUC2P16C
Subtotal (1 unit)
£15.36(exc. VAT)
£15.36/unit
In Stock
Mersen 10A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 188-6984
  • Mfr. Part No. S218194 / FR10GG50V10
Subtotal (1 pack of 10 units)
£14.28(exc. VAT)
£14.28/pack
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 2A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3146
  • Mfr. Part No. A9F53102
Subtotal (1 unit)
£35.89(exc. VAT)
£35.89/unit
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