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

46580 Products showing for Fuses & Circuit Breakers

31 / 999+
Eaton xPole PXL, S200 MCB, 1P, 6A Curve C, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 486-930
  • Mfr. Part No. 236053 PXL-C6/1
Each
MYR128.95
Better World
ABB System Pro M Compact S200 MCB, 2P, 13A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7712
  • Mfr. Part No. 2CDS252001R0134 S202-C13
Each
MYR275.43
Better World
Schneider Electric, ComPacT NSX MCCB 3P 200A, Fixed Mount
  • RS Stock No. 254-6355
  • Mfr. Part No. C25F3TM200
Each
MYR9,467.07
Legrand 1A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 180-6106
  • Mfr. Part No. 0 130 01
Each (In a Box of 10)
MYR13.218
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 874-4382
  • Mfr. Part No. 3VA2116-5HL32-0AA0
Each
MYR3,883.88
Eaton xPole MCB, 1P, 32A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 864-4324
  • Mfr. Part No. 242209 PLSM-C32-MW
Each
MYR133.79
Littelfuse 160A Grey, White Fuse Strips Car Fuse, 48V dc
  • RS Stock No. 226-0917
  • Mfr. Part No. 157.5701.6161
Each
MYR43.72
Schurter 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 167-7106
  • Mfr. Part No. 70103440
Each (In a Pack of 10)
MYR10.306
Eaton 500mA F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 848-3034
  • Mfr. Part No. GMA-500-R
Each
MYR3.75
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 232-0263
  • Mfr. Part No. 1SDA067560R1 XT2S 160 TMA 160A FF
Each
MYR2,438.18
RS PRO 6A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 177-8113
Each (In a Pack of 50)
MYR1.481
Littelfuse PC Board Non Resettable Fuse, Axial 2A, 125V ac/dc
  • RS Stock No. 541-3170
  • Mfr. Part No. 0473002.HAT1L
Each (In a Pack of 10)
MYR7.564
Eaton 2A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 181-8904
  • Mfr. Part No. 2NZ01
Each
MYR19.70
Siemens SIRIUS Cover for use with 3RV2742
  • RS Stock No. 210-9275
  • Mfr. Part No. 3RV2948-1LA00
Each
MYR83.03
Better World
Siemens SENTRON 5SY8 MCB, 1P, 4A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 213-1105
  • Mfr. Part No. 5SY8104-7
Each
MYR290.13
Eaton xPole PXL, S200 MCB, 1P, 10A Curve B, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 486-776
  • Mfr. Part No. 236029 PXL-B10/1
Each
MYR37.24
ABB System Pro M Compact SU200M MCB, 3P, 16A Curve K, 400V AC, 400V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9761
  • Mfr. Part No. 2CDS273337R0467 SU203M-K16
1 Box of 1
MYR969.83
Eaton xEffect MCB, 1P, 4A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4668
  • Mfr. Part No. 239033 FAZ6-C4/1
Each
MYR154.04
ABB RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 136-7777
  • Mfr. Part No. 2CSR275151R1105 DSE201 M B10 A30 - N Blue
Each
MYR659.98
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 231-9350
  • Mfr. Part No. 1SDA100741R1 XT6S 800 EkipDip LS/I 800
Each
MYR10,777.97
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