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.

47112 Products showing for Fuses & Circuit Breakers

6 / 999+
In Stock
Better World
  • RS Stock No. 622-0036
  • Mfr. Part No. 5SY4104-7
Subtotal (1 unit)
MYR169.66
MYR169.66/unit
In Stock
Better World
  • RS Stock No. 191-6083
  • Mfr. Part No. A9P22601
Subtotal (1 unit)
MYR328.35
MYR328.35/unit
In Stock
  • RS Stock No. 847-3677
  • Mfr. Part No. 102036 FAZ-XAA-NA110-415VAC
Subtotal (1 unit)
MYR228.11
MYR228.11/unit
Temporarily out of stock
  • RS Stock No. 878-1741
  • Mfr. Part No. 0273001.H
Subtotal (1 unit)
MYR41.10
MYR41.10/unit
In Stock
  • RS Stock No. 287-6047
  • Mfr. Part No. R9EFD616
Subtotal (1 unit)
MYR169.53
MYR169.53/unit
Temporarily out of stock
  • RS Stock No. 186-6362
Subtotal (1 kit)
MYR617.30
MYR617.30/unit
In Stock
  • RS Stock No. 783-3236
  • Mfr. Part No. 70-007-33/2A
Subtotal (1 pack of 10 units)
MYR16.62
MYR1.662/unit
In Stock
  • RS Stock No. 177-8144
Subtotal (1 pack of 20 units)
MYR78.60
MYR3.93/unit
Limited stock
  • RS Stock No. 563-558
Subtotal (1 pack of 10 units)
MYR23.29
MYR2.329/unit
Being discontinued
  • RS Stock No. 563-722
Subtotal (1 pack of 10 units)
MYR22.61
MYR2.261/unit
In Stock
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
MYR329.20
MYR329.20/unit
In Stock
  • RS Stock No. 203-2039
  • Mfr. Part No. 3NA7822
Subtotal (1 pack of 3 units)
MYR123.081
MYR41.027/unit
In Stock
  • RS Stock No. 276-8719
  • Mfr. Part No. A9D27216
Subtotal (1 unit)
MYR3,484.88
MYR3,484.88/unit
In Stock
  • RS Stock No. 537-1688
  • Mfr. Part No. BK/S506-1.25-R
Subtotal (1 pack of 10 units)
MYR12.23
MYR1.223/unit
In Stock
  • RS Stock No. 537-8651
  • Mfr. Part No. S506-315-R
Subtotal (1 pack of 10 units)
MYR19.44
MYR1.944/unit
Temporarily out of stock
  • RS Stock No. 110-279
  • Mfr. Part No. A9D77432
Subtotal (1 unit)
MYR3,850.51
MYR3,850.51/unit
In Stock
  • RS Stock No. 765-2942
  • Mfr. Part No. SD00-D
Subtotal (1 unit)
MYR94.54
MYR94.54/unit
In Stock
  • RS Stock No. 203-2026
  • Mfr. Part No. 3NA7814
Subtotal (1 pack of 3 units)
MYR129.72
MYR43.24/unit
In Stock
  • RS Stock No. 412-302
  • Mfr. Part No. TDC10-5A
Subtotal (1 pack of 10 units)
MYR28.11
MYR2.811/unit
In Stock
  • RS Stock No. 630-852
  • Mfr. Part No. B085377Q / MI5HT25V3.15/100
Subtotal (1 box of 10 units)
MYR78.58
MYR78.58/box
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