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

50855 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Europa EUC1P EUC Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6490
  • Mfr. Part No. EUC1P4C
Subtotal (1 unit)
€8.31(exc. VAT)
In Stock
ETA ESX10 ESX10 Electronic Circuit Breaker 3 A 24 V, 1 channels, Plug-in
  • RS Stock No. 210-2125
  • Mfr. Part No. ESX10-TA-100-DC24V-3A-E
Subtotal (1 unit)
€88.04(exc. VAT)
In Stock
Socomec 20 A Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 252-5314
  • Mfr. Part No. 60130020
Subtotal (1 pack of 10 units)
€10.43(exc. VAT)
In Stock
RS PRO Rail Mount Fuse Holder
  • RS Stock No. 501-871
Subtotal (1 unit)
€11.58(exc. VAT)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 2 A, Type B, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 231-9658
  • Mfr. Part No. 2CDS251001R0025 S200-1P-B2A
Subtotal (1 box of 1 unit)
€29.54(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 106 Single Pole 240V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 728-8654
  • Mfr. Part No. 106-P10-000040-10A
Subtotal (1 unit)
€17.67(exc. VAT)
In Stock
Schneider Electric Multi9 C60SP Miniature Circuit Breaker, 4-Pole, 63 A, Type C, 440 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 211-2382
  • Mfr. Part No. M9F22463
Subtotal (1 unit)
€81.59(exc. VAT)
In Stock
ABB, Protecta, XT1N Molded Case Circuit Breaker 3-Pole 63 A, Breaking Capacity 36 kA, DIN Rail
  • RS Stock No. 831-9163
  • Mfr. Part No. 1SDA067414R1 XT1N 160 TMD 63-630 3p F F
Subtotal (1 unit)
€271.32(exc. VAT)
In Stock
Eaton 6.3 A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1307
  • Mfr. Part No. S506-6.3-R
Subtotal (1 pack of 10 units)
€2.07(exc. VAT)
In Stock
Schneider Electric Easy9 Easy9 Miniature Circuit Breaker, 1-Pole, 6 A, Type B, 230 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8599
  • Mfr. Part No. EZ9F16106
Subtotal (1 unit)
€6.44(exc. VAT)
In Stock
Contactum Defender B Board DDB Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 415 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9043
  • Mfr. Part No. CPB1032C3
Subtotal (1 unit)
€17.62(exc. VAT)
In Stock
RS PRO Residential RCCBs, 63A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 284-2371
Subtotal (1 unit)
€53.39(exc. VAT)
In Stock
Eaton 3 A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-560
  • Mfr. Part No. TDC180-3A
Subtotal (1 pack of 10 units)
€7.12(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 2-Pole, 32 A, Type C, 240 V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0184
Subtotal (1 unit)
€23.99(exc. VAT)
In Stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 16A Current Rating
  • RS Stock No. 284-5906
  • Mfr. Part No. 4400.0017
Subtotal (1 unit)
€10.58(exc. VAT)
Being discontinued
RS PRO 1.6 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-457
Subtotal (1 pack of 10 units)
€3.31(exc. VAT)
In Stock
ETI 63 A D02 Neozed Fuse, E18 Thread Size, 400 V ac
  • RS Stock No. 416-023
  • Mfr. Part No. 2212005
Subtotal (1 pack of 5 units)
€6.23(exc. VAT)
In Stock
Mersen 80 A GG Ceramic Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 188-7460
  • Mfr. Part No. Q217180 / FR22GG69V80
Subtotal (1 pack of 10 units)
€50.56(exc. VAT)
Last RS stock
TE Connectivity Thermal Circuit Breaker - W57 Single Pole 250V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 782-7931
  • Mfr. Part No. W57-XB7A4A10-15
Subtotal (1 unit)
€3.15(exc. VAT)
In Stock
Mersen 5 A Time Lag Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 630-844
  • Mfr. Part No. Z090550Q / MI5ST25V5/100
Subtotal (1 box of 10 units)
€6.71(exc. VAT)
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