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

46578 Products showing for Fuses & Circuit Breakers

129 / 999+
Temporarily out of stock
  • RS Stock No. 237-6640
  • Mfr. Part No. 2CTB803972R1200
Each
MYR1,036.64
Temporarily out of stock
  • RS Stock No. 131-209
  • Mfr. Part No. 2910385
Each
MYR870.99
Temporarily out of stock
  • RS Stock No. 260-719
  • Mfr. Part No. BH-0112
Each
MYR1,322.03
In Stock
  • RS Stock No. 284-2369
Each
MYR223.94
In Stock
  • RS Stock No. 517-6770
  • Mfr. Part No. RUEF110
Each (In a Pack of 10)
MYR1.842
In Stock
  • RS Stock No. 521-2501
Each (In a Pack of 5)
MYR19.742
In Stock
  • RS Stock No. 182-4018
Each (In a Pack of 5)
MYR26.286
In Stock
  • RS Stock No. 122-5270
  • Mfr. Part No. 60190000
Each (In a Pack of 10)
MYR4.855
In Stock
  • RS Stock No. 420-195
Each (In a Pack of 10)
MYR11.684
Temporarily out of stock
Better World
  • RS Stock No. 254-6360
  • Mfr. Part No. C25N3TM200
Each
MYR9,853.53
In Stock
  • RS Stock No. 337-1995
  • Mfr. Part No. 3101.0030
Each (In a Pack of 5)
MYR14.978
In Stock
  • RS Stock No. 247-2951
  • Mfr. Part No. Y084799
1 Box of 10
MYR1,317.30
In Stock
  • RS Stock No. 265-0175
Each
MYR102.63
Temporarily out of stock
  • RS Stock No. 227-0688
  • Mfr. Part No. 264265 PFGM-16/2/001
Each
MYR887.53
Last RS stock
  • RS Stock No. 816-8952
  • Mfr. Part No. T090522
Each (In a Pack of 10)
MYR2.807
Currently unavailable
  • RS Stock No. 176-807
  • Mfr. Part No. 2CCL562111E0165 - FS401E-B16/0.03
Each
MYR575.52
Temporarily out of stock
Better World
  • RS Stock No. 134-8663
  • Mfr. Part No. A9MEM1542
Each
MYR2,163.47
In Stock
  • RS Stock No. 207-2730
  • Mfr. Part No. 2906786
Each
MYR742.28
In Stock
  • RS Stock No. 622-1067
  • Mfr. Part No. 5SE2316
Each (In a Pack of 10)
MYR15.178
Temporarily out of stock
  • RS Stock No. 890-3720
  • Mfr. Part No. 2905469
Each
MYR5,409.90
Results per page