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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

52567 Products showing for Fuses & Circuit Breakers

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In Stock
Allen Bradley 1492-SPM 1492-SPM Miniature Circuit Breaker, 3-Pole, 1A, Type C, 480V ac AC, 96 V dc DC, 15 kA Breaking
  • RS Stock No. 125-1479
  • Mfr. Part No. 1492-SPM3C010
Subtotal (1 unit)
£74.85(exc. VAT)
£74.85/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 1A, Type B, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0165
Subtotal (1 unit)
£8.67(exc. VAT)
£8.67/unit
In Stock
RS PRO DHMZ 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
Europa EUC2P EUC2P Miniature Circuit Breaker, 2-Pole, 2A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6531
  • Mfr. Part No. EUC2P2C
Subtotal (1 unit)
£12.79(exc. VAT)
£12.79/unit
In Stock
Allen Bradley 1492-SPM Miniature Circuit Breaker, 2-Pole, 3A, Type C, 480V ac AC, 96 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1469
  • Mfr. Part No. 1492-SPM2C030
Subtotal (1 unit)
£51.89(exc. VAT)
£51.89/unit
In Stock
Mersen 20A FF Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 136-0615
  • Mfr. Part No. E1014580 / FR10GR69V20
Subtotal (1 unit)
£9.28(exc. VAT)
£9.28/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 4A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0176
Subtotal (1 unit)
£19.48(exc. VAT)
£19.48/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)
£8.66(exc. VAT)
£8.66/unit
In Stock
RS PRO Industrial Surge Protector, 50 kA, 3.6 kV, DIN Rail
  • RS Stock No. 101-757
Subtotal (1 unit)
£99.84(exc. VAT)
£99.84/unit
In Stock
Littelfuse 250A 68.58 x 19.05 x 10.67 mm, Panel Single Terminal Fuse Fuse Block, 32V
  • RS Stock No. 878-3946
  • Mfr. Part No. 02980900Z
Subtotal (1 unit)
£20.59(exc. VAT)
£20.59/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0186
Subtotal (1 unit)
£19.44(exc. VAT)
£19.44/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 2-Pole, 1A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS Stock No. 734-9226
  • Mfr. Part No. A9F74201
Subtotal (1 unit)
£63.33(exc. VAT)
£63.33/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 265-0177
Subtotal (1 unit)
£16.87(exc. VAT)
£16.87/unit
In Stock
RS PRO 2A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-609
Subtotal (1 pack of 10 units)
£4.28(exc. VAT)
£4.28/pack
In Stock
ABB F200 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type A, 1 kA 230V ac
  • RS Stock No. 488-6915
  • Mfr. Part No. 2CSF202101R1250 - F202A-25/0.03
Subtotal (1 unit)
£87.15(exc. VAT)
£87.15/unit
In Stock
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 16A, Type C, 253V ac AC, 72 V dc DC, 10
  • RS Stock No. 535-4150
  • Mfr. Part No. 2CDS271001R0164 S201M-C16
Subtotal (1 unit)
£18.34(exc. VAT)
£18.34/unit
In Stock
Europa EUC3P EUC3P Miniature Circuit Breaker, 3-Pole, 2A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6575
  • Mfr. Part No. EUC3P2C
Subtotal (1 unit)
£22.40(exc. VAT)
£22.40/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)
£8.48(exc. VAT)
£8.48/unit
In Stock
TE Connectivity W58 Thermal Circuit Breaker - 1-Pole, Direct, 10A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-0892
  • Mfr. Part No. W58-XB1A4A-10
Subtotal (1 unit)
£6.74(exc. VAT)
£6.74/unit
In Stock
WISKA Enclosure Accessory
  • RS Stock No. 700-0818
  • Mfr. Part No. EN20
Subtotal (1 pack of 6 units)
£25.00(exc. VAT)
£25.00/pack
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