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

35151 Products showing for Fuses & Circuit Breakers

222 of 999+
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-7620
  • Mfr. Part No. C11H3TM050B
Each
$1,679.83(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 110 kA, DIN Rail Mount
  • RS Stock No. 271-9490
  • Mfr. Part No. 3VA1325-7MH32-0AA0
Each
$4,130.37(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7753
  • Mfr. Part No. C16F34V100
Each
$5,782.82(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9477
  • Mfr. Part No. 3VA1216-4FF42-0AA0
Each
$3,182.92(exc. GST)
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 260-7982
  • Mfr. Part No. C25R45E250
Each
$10,740.39(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 25A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9874
  • Mfr. Part No. 3VA1125-6GF42-0AA0
Each
$1,399.49(exc. GST)
Schneider Electric, ComPacT MCCB 4P 40A, Fixed Mount
  • RS Stock No. 260-9473
  • Mfr. Part No. C10H44V040
Each
$6,171.22(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9337
  • Mfr. Part No. 3VA1140-6ED46-0AA0
Each
$1,183.28(exc. GST)
Schneider Electric, ComPacT MCCB 4P 500A, Fixed Mount
  • RS Stock No. 260-8208
  • Mfr. Part No. C63F4TM500D1
Each
$10,205.57(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 125A, Fixed Mount
  • RS Stock No. 260-7740
  • Mfr. Part No. C16B3TM125
Each
$1,799.31(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 272-0171
  • Mfr. Part No. 3VA1563-5EF42-0AA0
Each
$8,212.23(exc. GST)
Schneider Electric, ComPacT MCCB 4P 500A, Fixed Mount
  • RS Stock No. 260-8207
  • Mfr. Part No. C63F4TM500D
Each
$9,980.28(exc. GST)
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 260-7484
  • Mfr. Part No. C10W32M025
Each
$4,190.46(exc. GST)
Schneider Electric, ComPacT MCCB 4P 40A, Fixed Mount
  • RS Stock No. 260-7506
  • Mfr. Part No. C10W45E040
Each
$7,648.42(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9796
  • Mfr. Part No. 3VA1116-6ED46-0AA0
Each
$2,624.05(exc. GST)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-9405
  • Mfr. Part No. C10B4
Each
$872.86(exc. GST)
Schneider Electric, ComPacT MCCB 4P 200A, Fixed Mount
  • RS Stock No. 260-8028
  • Mfr. Part No. C25V4TM200
Each
$8,751.48(exc. GST)
Schneider Electric, ComPacT MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7998
  • Mfr. Part No. C25V32M150
Each
$6,533.04(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9687
  • Mfr. Part No. 3VA11106GD420AA0
Each
$1,384.96(exc. GST)
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-7462
  • Mfr. Part No. C10V3MA050
Each
$2,590.28(exc. GST)
1
222
1758
Results per page

Related links