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

52730 Products showing for Fuses & Circuit Breakers

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Limited 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)
€6.36(exc. VAT)
€0.636/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0188
Subtotal (1 unit)
€10.18(exc. VAT)
€10.18/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0202
Subtotal (1 unit)
€10.38(exc. VAT)
€10.38/unit
In Stock
RS PRO 10A In-line Fuse Holder for 5 x 20 mm, 250V
  • RS Stock No. 237-5259
Subtotal (1 unit)
€2.80(exc. VAT)
€2.80/unit
Limited stock
Eaton 1A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1379
  • Mfr. Part No. S506-1-R
Subtotal (1 pack of 10 units)
€2.50(exc. VAT)
€0.25/unit
In Stock
RS Better World
Schneider Electric Acti9 Acti9 3 Phase Busbar, 415 V ac, 18 mm Pitch
  • RS Stock No. 776-2730
  • Mfr. Part No. A9XPH324
Subtotal (1 unit)
€44.49(exc. VAT)
€44.49/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)
€5.91(exc. VAT)
€0.591/unit
In Stock
ETA Thermal Overcurrent Circuit Breakers 1658 Thermal Circuit Breaker - 1-Pole, Panel, 16A Current Rating, 16 A, 250V
  • RS Stock No. 344-5333
  • Mfr. Part No. 1658-G21-02-P10-16A
Subtotal (1 unit)
€6.23(exc. VAT)
€6.23/unit
In Stock
Murrelektronik Limited MICO MICO Electronic Circuit Breaker 6A 24V, 4 channels, DIN Rail
  • RS Stock No. 123-6689
  • Mfr. Part No. 9000-41034-0100600
Subtotal (1 unit)
€166.36(exc. VAT)
€166.36/unit
In Stock
RS PRO NF12 Series Residual Current Circuit Breaker, 63A, 2-Pole, 30 mA, Type A 230V ac
  • RS Stock No. 284-2371
Subtotal (1 unit)
€53.92(exc. VAT)
€53.92/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0198
Subtotal (1 unit)
€10.38(exc. VAT)
€10.38/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 6A, Type B, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7558
  • Mfr. Part No. 2CDS252001R0065 S202-B6
Subtotal (1 unit)
€53.23(exc. VAT)
€53.23/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 10A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3293
  • Mfr. Part No. A9F54110
Subtotal (1 unit)
€23.36(exc. VAT)
€23.36/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 3-Pole, 32A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0208
Subtotal (1 unit)
€36.28(exc. VAT)
€36.28/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 247-2231
  • Mfr. Part No. R9D01616
Subtotal (1 unit)
€51.66(exc. VAT)
€51.66/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 2A, Type C, 100V, 12 V, 133 V, 220 V, 240 V, 60 V AC,
  • RS Stock No. 791-3284
  • Mfr. Part No. A9F54102
Subtotal (1 unit)
€23.65(exc. VAT)
€23.65/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Subtotal (1 unit)
€54.59(exc. VAT)
€54.59/unit
In Stock
ETA 6 to 30 A 1610 Thermal Circuit Breaker - 1-Pole, Base, 10A Current Rating, 25 A, 24V ac, 48 V dc
  • RS Stock No. 409-889
  • Mfr. Part No. 1610-21-10A
Subtotal (1 unit)
€10.20(exc. VAT)
€10.20/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0193
Subtotal (1 unit)
€10.18(exc. VAT)
€10.18/unit
Limited stock
Eaton 440mA F Melamine Cartridge Fuse, 10 x 35 mm
  • RS Stock No. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Subtotal (1 pack of 5 units)
€116.40(exc. VAT)
€23.28/unit
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