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

37 of 999+
SIBA 225A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1835
  • Mfr. Part No. 9005805.225
Each
PHP399.35(exc. VAT)
ABB RCBO, 16A Current Rating, 2P Poles, 300mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6965
  • Mfr. Part No. 2CSR275180R3164 DS201 M C16 A300
Each
PHP11,108.35(exc. VAT)
Eaton 100A Tan Blade Car Fuse, 32 V ac, 80 Vdc
  • RS Stock No. 849-5863
  • Mfr. Part No. ANN-100
Each (In a Pack of 5)
PHP4,082.628(exc. VAT)
Eaton 25A T Melamine Cartridge Fuse, 10 x 38mm
  • RS Stock No. 848-4380
  • Mfr. Part No. LP-CC-25
Each
PHP3,097.08(exc. VAT)
Eaton 50A Centred Tag Fuse, NH000, 690V
  • RS Stock No. 182-1737
  • Mfr. Part No. 170M1564D
Each
PHP4,697.73(exc. VAT)
Bourns 0.9A Resettable Fuse, 60V
  • RS Stock No. 647-8538
  • Mfr. Part No. MF-R090
Each (In a Pack of 10)
PHP21.364(exc. VAT)
Eaton 8A Centred Tag Fuse
  • RS Stock No. 854-8998
  • Mfr. Part No. LPJ-8SP
Each
PHP3,389.68(exc. VAT)
Better World
Siemens, 0AA0 MCCB 3P 20A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 211-6000
  • Mfr. Part No. 3VA1120-6EE36-0AA0
Each
PHP21,161.34(exc. VAT)
Littelfuse SMD Non Resettable Fuse 1.5A, 63V
  • RS Stock No. 787-4227
  • Mfr. Part No. 046601.5NR
Each (In a Pack of 5)
PHP38.908(exc. VAT)
Mersen 100A size 30 FF Square Body Fuse, aR, 700V
  • RS Stock No. 304-1969
  • Mfr. Part No. T300052
Each
PHP8,756.79(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 125A, Fixed Mount
  • RS Stock No. 254-6331
  • Mfr. Part No. C12H3TM125L
Each
PHP60,862.46(exc. VAT)
Siemens, SENTRON MCCB 2P 15A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 147-759
  • Mfr. Part No. 3VA5195-6ED21-0AA0
Each
PHP25,427.80(exc. VAT)
RS PRO 10A British Standard Fuse, F1, 550V ac
  • RS Stock No. 521-2911
Each (In a Pack of 5)
PHP284.166(exc. VAT)
Mersen 10A Quick Acting Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 630-899
  • Mfr. Part No. X090525Q
1 Box of 10
PHP501.14(exc. VAT)
WJ Furse Copper Earth Bar L. 400mm x W. 90mm x H. 90mm 6 Ways
  • RS Stock No. 124-2496
  • Mfr. Part No. 7TCA083670R0739 LK245-6
Each
PHP14,262.69(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 209-5010
  • Mfr. Part No. 3VA1163-3EF32-0AA0
Each
PHP21,237.13(exc. VAT)
Eaton 125A British Standard Fuse, B2, 660V ac, 111mm
  • RS Stock No. 415-272
  • Mfr. Part No. TF125
Each
PHP7,767.55(exc. VAT)
Eaton MCCB 1P 125A, Breaking Capacity 80 kA, Fixed Mount
  • RS Stock No. 628-8082
  • Mfr. Part No. 259142 PN1-125
1 Box of 1
PHP29,824.95(exc. VAT)
Eaton Eaton Moeller 1 Phase Busbar, 1000V, 17.6mm Pitch
  • RS Stock No. 123-031
  • Mfr. Part No. 171128 Z-BB/UL18/1P1MU/57
Each
PHP982.58(exc. VAT)
Siemens, SENTRON MCCB 2P 60A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-680
  • Mfr. Part No. 3VA5160-4ED21-0AA0
Each
PHP30,491.36(exc. VAT)
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