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

33483 Products showing for Fuses & Circuit Breakers

5 of 999+
Schneider Electric, ComPacT New Generation MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7785
  • Mfr. Part No. C16H4
Each
PHP57,967.27(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 10A Curve C, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-913
  • Mfr. Part No. A9K02310
Each
PHP1,596.46(exc. VAT)
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 10A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8628
  • Mfr. Part No. EZ9F66110
Each
PHP235.67(exc. VAT)
Schneider Electric Acti9 Acti9 iC60 MCB, 2P, 500mA Curve D, 400V AC, 125V DC, 6000 A Breaking Capacity
  • RS Stock No. 287-5952
  • Mfr. Part No. A9F75270
Each
PHP10,317.24(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 500A, Fixed Mount
  • RS Stock No. 260-8253
  • Mfr. Part No. C63V36M500
Each
PHP412,832.73(exc. VAT)
Better World
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Resi9 Range
  • RS Stock No. 247-2231
  • Mfr. Part No. R9D01616
Each
PHP3,506.43(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS Stock No. 260-8199
  • Mfr. Part No. C63F32D630
Each
PHP316,254.70(exc. VAT)
Siemens 160A Centred Tag Fuse, NH00, 690V ac
  • RS Stock No. 396-354
  • Mfr. Part No. 3NE8024-1
Each (In a Pack of 3)
PHP6,286.513(exc. VAT)
Better World
Schneider Electric EZ9 RCCB, 63A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 850-8583
  • Mfr. Part No. EZ9R33263
Each
PHP1,445.22(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 125A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9755
  • Mfr. Part No. LV516302
Each
PHP35,187.07(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 2P, 10A Curve B, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-879
  • Mfr. Part No. A9K11210
Each
PHP936.67(exc. VAT)
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-804
Each
PHP7,966.48(exc. VAT)
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 668-5969
Each (In a Pack of 10)
PHP24.812(exc. VAT)
ABB S 200 2CDS252001R MCB, 2P, 2A, Type Z, 400V AC, 125V DC, 230 V Breaking Capacity
  • RS Stock No. 288-0887
  • Mfr. Part No. 2CDS252001R0278
Each
PHP5,330.58(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 125A, Fixed Mount
  • RS Stock No. 254-6344
  • Mfr. Part No. C16F3TM125
Each
PHP52,316.74(exc. VAT)
Better World
Schneider Electric TeSys for use with TeSys GV-U
  • RS Stock No. 211-2540
  • Mfr. Part No. GVAPL01
Each
PHP6,075.30(exc. VAT)
Murrelektronik Limited Earthing Strap Tinned Copper
  • RS Stock No. 284-6551
  • Mfr. Part No. 4000-71001-1620006
Each
PHP896.02(exc. VAT)
Better World
Schneider Electric MCCB 3P 15 → 125A, Fixed Mount
  • RS Stock No. 178-7901
  • Mfr. Part No. LV426967
Each
PHP3,632.83(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 2A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3436
  • Mfr. Part No. A9F74102
Each
PHP4,901.45(exc. VAT)
RS PRO Earthing Kit
  • RS Stock No. 528-983
Each
PHP1,105.36(exc. VAT)
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