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

33502 Products showing for Fuses & Circuit Breakers

260 of 999+
Temporarily out of stock
ABB RCBO, 32A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-3389
  • Mfr. Part No. 2CSR252001R1325
Each
PHP17,293.02(exc. VAT)
Currently unavailable
Schurter SMD Non Resettable Fuse 4A, 125V ac/dc
  • RS Stock No. 733-4899
  • Mfr. Part No. 3404.0120.22
Each (In a Bag of 5)
PHP40.194(exc. VAT)
Last RS stock
RS PRO SMD Non Resettable Fuse 7A, 125V
  • RS Stock No. 182-3972
Each (In a Pack of 20)
PHP27.584(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT Cover Frame for use with ComPacT NS630b
  • RS Stock No. 655-146
  • Mfr. Part No. C100H3WM
Each
PHP202,545.85(exc. VAT)
Temporarily out of stock
Schneider Electric Mureva Distribution Board, 90 A
  • RS Stock No. 119-360
  • Mfr. Part No. 13172M
Each
PHP20,458.29(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 32A, Type Z, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-202
  • Mfr. Part No. 2CDS273001R0538
Each
PHP33,183.88(exc. VAT)
Temporarily out of stock
Schneider Electric Compact NSX Cable Connector for use with ComPacT NSX100, NSX160, NSX250
  • RS Stock No. 205-209
  • Mfr. Part No. LV429244
Each
PHP8,703.73(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 260-9548
  • Mfr. Part No. C10R4TM063
Each
PHP96,166.64(exc. VAT)
Temporarily out of stock
Littelfuse PC Board Non Resettable Fuse, Radial 750mA, 125V ac/dc
  • RS Stock No. 738-3074
  • Mfr. Part No. 0259.750T
Each
PHP364.56(exc. VAT)
Temporarily out of stock
Eaton Busbar, 600V ac, 60mm Pitch
  • RS Stock No. 178-8005
  • Mfr. Part No. 101452 BBA0-32
Each
PHP4,019.03(exc. VAT)
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 3 Way
  • RS Stock No. 231-237
  • Mfr. Part No. 110159 BC-A-3/39-TW-G
Each
PHP10,410.15(exc. VAT)
In Stock
Eaton 56A British Standard Fuse, ET, 690 V, 700 V, 63.5mm
  • RS Stock No. 182-1411
  • Mfr. Part No. 56ET
Each (In a Box of 10)
PHP1,018.512(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 63A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 654-982
  • Mfr. Part No. C11F6TM063L
Each
PHP39,775.31(exc. VAT)
In Stock
ABB 48 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1912
  • Mfr. Part No. 1SL1207A00 65P12X42
Each
PHP10,450.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 63A, Breaking Capacity 36kA
  • RS Stock No. 260-9742
  • Mfr. Part No. LV510345
Each
PHP37,790.64(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 250mA, 125V ac/dc
  • RS Stock No. 738-3080
  • Mfr. Part No. 0259.250T
Each
PHP363.78(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 1.5A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-878
  • Mfr. Part No. 132713 FAZ-B1,5/3-NA
Each
PHP12,096.30(exc. VAT)
In Stock
Bourns 0.5A Resettable Fuse, 60V
  • RS Stock No. 647-8493P
  • Mfr. Part No. MF-R050
Each (Supplied in a Bag)
PHP28.542(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3342
  • Mfr. Part No. A9DV3732
Each
PHP37,512.65(exc. VAT)
Temporarily out of stock
Legrand 96 Way Split Load Metal Consumer Unit, 160A, IP30 XL160
  • RS Stock No. 705-5583
  • Mfr. Part No. 0 200 04
Each
PHP74,528.57(exc. VAT)
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