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

46002 Products showing for Fuses & Circuit Breakers

2258 / 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7512
  • Mfr. Part No. C10W4TM100
Each
MYR9,180.48
Temporarily out of stock
RS PRO SMD Non Resettable Fuse 2.5A, 125V
  • RS Stock No. 182-4112
Each (In a Pack of 25)
MYR1.54
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA 1SDA07, 3 channels
  • RS Stock No. 259-4461
  • Mfr. Part No. 1SDA072660R1
Each
MYR306,285.00
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3351
  • Mfr. Part No. 1SDA071267R1
Each
MYR187,897.06
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-3895
  • Mfr. Part No. 1SDA071924R1
Each
MYR252,573.63
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 236-6681
  • Mfr. Part No. 1SDA068304R1 XT4S 160 TMA 50A FF
Each
MYR3,168.92
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4404
  • Mfr. Part No. 1SDA072586R1
Each
MYR133,112.15
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3652
  • Mfr. Part No. 3VA2025-6JP32-0AA0
Each
MYR7,981.69
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 500A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 270-3504
  • Mfr. Part No. 3VA1450-4GF42-0AA0
Each
MYR15,120.17
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-4402
  • Mfr. Part No. 1SDA072584R1
Each
MYR126,463.24
Temporarily out of stock
Better World
Siemens SENTRON Fire Safety Circuit Breaker, 1+N, 6A Curve C, 230V AC
  • RS Stock No. 238-3209
  • Mfr. Part No. 5SV6016-7MC06
Each
MYR1,713.57
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 4 channels
  • RS Stock No. 259-3771
  • Mfr. Part No. 1SDA071778R1
Each
MYR99,709.99
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-7485
  • Mfr. Part No. C10W32M050
Each
MYR8,357.38
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 3 channels
  • RS Stock No. 259-4300
  • Mfr. Part No. 1SDA072434R1
Each
MYR66,721.22
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4066
  • Mfr. Part No. 3VA2116-0KP46-0AA0
Each
MYR15,151.25
Temporarily out of stock
ABB Tmax Plug In Unit for use with T4
  • RS Stock No. 237-5976
  • Mfr. Part No. 1SDA054744R1 T4 WFP-VR
Each
MYR2,931.09
Temporarily out of stock
Eaton xEffect MCB, 2P, 3.5A Curve B
  • RS Stock No. 230-0899
  • Mfr. Part No. 177546 FAZ6-B3,5/2
Each
MYR363.43
Temporarily out of stock
Legrand DX3 Circuit Breaker, 1P, 10A, Type Z, 230V AC, 25 kA Breaking Capacity
  • RS Stock No. 266-1345
  • Mfr. Part No. 409901
Each
MYR618.76
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 3P, 13A Curve B, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-9022
  • Mfr. Part No. 5SY7313-6
Each
MYR618.99
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Touch LSIG, 4 channels
  • RS Stock No. 259-3499
  • Mfr. Part No. 1SDA071466R1
Each
MYR37,594.14
1
2258
2301
Results per page

Related links