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
Fuses - PCB
Fuses - PCB

33476 Products showing for Fuses & Circuit Breakers

53 of 999+
Temporarily out of stock
Eaton IZMX40H3-V10F-1 Electronic Circuit Breaker 1kA , Fixed
  • RS Stock No. 132-678
  • Mfr. Part No. 183719 IZMX40H3-V10F-1
Each
PHP515,573.83(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 600A, Fixed
  • RS Stock No. 122-319
  • Mfr. Part No. LV563326
Each
PHP36,289.96(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 6A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3290
  • Mfr. Part No. A9F54106
Each
PHP7,782.55(exc. VAT)
Limited stock
Limitor Thermal Fuse +167°C 15 A, 250V ac
  • RS Stock No. 797-6052
  • Mfr. Part No. SF 167 R
Each (In a Pack of 10)
PHP65.672(exc. VAT)
Being discontinued
RS PRO PC Board Non Resettable Fuse, Axial 1.5A, 250V ac
  • RS Stock No. 764-9582
Each (In a Pack of 10)
PHP39.82(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 320A, Fixed Mount
  • RS Stock No. 260-8112
  • Mfr. Part No. C40H32M320
Each
PHP180,443.95(exc. VAT)
In Stock
Littelfuse Non-Resettable Wire Ended Fuse 2A, 125V ac/dc
  • RS Stock No. 738-3030
  • Mfr. Part No. 0251002.MRT1L
Each (In a Pack of 10)
PHP50.52(exc. VAT)
Temporarily out of stock
Eaton xComfort KLV Installaton Accessory for use with Basic Device, Installation Distribution Boards, KLV for Projects
  • RS Stock No. 125-019
  • Mfr. Part No. 178880 KLV-SF3-4PR
Each
PHP3,840.33(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 1A Curve C, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9226
  • Mfr. Part No. A9F74201
Each
PHP8,237.96(exc. VAT)
In Stock
ABB Tmax T Motor Operator for use with MCCB
  • RS Stock No. 232-0141
  • Mfr. Part No. 1SDA060398R1 MOE 220-250VACDC T6
Each
PHP70,973.45(exc. VAT)
In Stock
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5128
  • Mfr. Part No. 3RV1915-1AB
Each
PHP1,011.50(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 249-035
  • Mfr. Part No. 192165 NZMN2-PX160-SVE
Each
PHP139,290.71(exc. VAT)
In Stock
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 130-871
  • Mfr. Part No. A9D50210
Each
PHP44,141.43(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 600A, Breaking Capacity 100 kA, DIN Rail Mount
  • RS Stock No. 245-056
  • Mfr. Part No. NLJF36600U53XTW
Each
PHP395,666.13(exc. VAT)
Temporarily out of stock
Schneider Electric Resi9 R9F2 MCB, 1P, 32A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-142
  • Mfr. Part No. R9F24132
Each
PHP2,965.55(exc. VAT)
Limited stock
ETI 16A DI Diazed Fuse, E16 Thread Size, gG - gL, 500V ac
  • RS Stock No. 417-852
  • Mfr. Part No. 2311405
Each (In a Pack of 5)
PHP62.48(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 40A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-925
  • Mfr. Part No. A9K12340
Each
PHP2,066.70(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7798
  • Mfr. Part No. C16N32D160
Each
PHP94,965.16(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 191-6074
  • Mfr. Part No. A9DA2616
Each
PHP15,006.07(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - CPP Single Pole Panel Mount, 20A Current Rating
  • RS Stock No. 275-0185
  • Mfr. Part No. CPP11-52-20.0A-OB-V
1 Box of 10
PHP16,000.33(exc. VAT)
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