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

93 of 999+
In Stock
Schneider Electric RCBO, 16A Current Rating, 1P Poles, Type B, Acti9 Range
  • RS Stock No. 245-142
  • Mfr. Part No. A9D56816
Each
PHP13,365.61(exc. VAT)
Temporarily out of stock
Schneider Electric Multi9 M9F MCB, 2P, 10A Curve C, 415V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-1400
  • Mfr. Part No. M9F42210
Each
PHP12,720.54(exc. VAT)
Temporarily out of stock
Better World
Siemens 5sV3 RCCB, 80A, 4 Pole, 30mA, Type F, 400V ac
  • RS Stock No. 211-9648
  • Mfr. Part No. 5SV3347-3
Each
PHP86,808.64(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 RCD
  • RS Stock No. 219-9027
  • Mfr. Part No. A9N26948
Each
PHP8,804.40(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5122
  • Mfr. Part No. 3VA2110-5JQ32-0AA0
Each
PHP100,039.48(exc. VAT)
In Stock
Littelfuse 0.1A Resettable Fuse, 15V dc
  • RS Stock No. 787-4211
  • Mfr. Part No. 0805L010YR
Each (In a Pack of 10)
PHP61.713(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1kA , Fixed
  • RS Stock No. 127-692
  • Mfr. Part No. 183328 IZMX16B3-V10F-1
Each
PHP322,407.16(exc. VAT)
In Stock
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS Stock No. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
1 Box of 1
PHP508.62(exc. VAT)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 25 kA
  • RS Stock No. 249-222
  • Mfr. Part No. 3VA6610-5HM32-0AA0
Each
PHP474,321.52(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 500A, Plug In
  • RS Stock No. 122-448
  • Mfr. Part No. LV563305P
Each
PHP43,149.03(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 10A Curve C, 100 → 130V AC, 12 → 144V DC, 10 kA Breaking Capacity
  • RS Stock No. 734-9400
  • Mfr. Part No. A9F94210
Each
PHP13,309.54(exc. VAT)
Temporarily out of stock
ABB S304 MCB, 4P, 63A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 202-860
  • Mfr. Part No. 2CDS384001R0634
Each
PHP44,062.07(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 RCD, 2A
  • RS Stock No. 219-9016
  • Mfr. Part No. A9A26947
Each
PHP8,217.71(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2730
  • Mfr. Part No. A9XPH324
Each
PHP6,734.85(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4214 MCB, 2P, 300mA Curve C, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-864
  • Mfr. Part No. 5SJ4214-7HG41
Each
PHP11,729.74(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 2P, 40A Curve C, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 129-083
  • Mfr. Part No. 142488 FAZT-C40/2
Each
PHP11,748.89(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4823
  • Mfr. Part No. 3VA2563-7HL42-0AA0
Each
PHP313,408.01(exc. VAT)
In Stock
Siemens Cover for use with 3TB52 Series
  • RS Stock No. 735-2806
  • Mfr. Part No. 3TX6526-3B
Each
PHP5,343.74(exc. VAT)
Temporarily out of stock
HENSEL 1, 3 Phase Distribution Board, 18 Way, 63 A
  • RS Stock No. 183-2859
  • Mfr. Part No. KV9118M
Each
PHP12,543.25(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 5A, 125V ac/dc
  • RS Stock No. 878-1754
  • Mfr. Part No. 0273005.H
Each
PHP445.90(exc. VAT)
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