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

33477 Products showing for Fuses & Circuit Breakers

63 of 999+
Temporarily out of stock
Better World
Schneider Electric Busbar Centre Feed Unit, Canalis KS Series
  • RS Stock No. 211-0454
  • Mfr. Part No. KSA250ABT4
Each
PHP95,056.54(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 2P, 5A Curve C, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-419
  • Mfr. Part No. 5SY4211-7
Each
PHP7,410.74(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 209-5075
  • Mfr. Part No. 3VA1220-4EF32-0AA0
Each
PHP53,141.49(exc. VAT)
In Stock
ABB SU200 M MCB, 1P, 15A Curve C, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-145
  • Mfr. Part No. 2CDS271337R0154
Each
PHP3,201.07(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)
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
Schneider Electric K Residual Current Circuit Breaker, 40A, 2P Pole, 100mA, Type AC, 220 → 240V ac
  • RS Stock No. 588-937
  • Mfr. Part No. A9KR15240
Each
PHP2,045.21(exc. VAT)
In Stock
Littelfuse 40A Orange Blade Car Fuse, 32V dc
  • RS Stock No. 787-4145
  • Mfr. Part No. 0287040.PXCN
Each (In a Pack of 10)
PHP17.424(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 40A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9910
  • Mfr. Part No. 3VA1140-3ED12-0AA0
Each
PHP9,970.87(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 125A, 4 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 225-6117
  • Mfr. Part No. 2CSF204001R1950 F204 AC-125/0,03
Each
PHP92,768.57(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 3P, 16A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-575
  • Mfr. Part No. 2CCS863001R0161
Each
PHP22,236.25(exc. VAT)
In Stock
Europa 3 Phase Distribution Board, 24 Way, 125 A
  • RS Stock No. 849-6418
  • Mfr. Part No. TPN08
Each
PHP27,732.15(exc. VAT)
Temporarily out of stock
Eaton 15A PCB Mount 5 x 20mm Fuse Block, 250V
  • RS Stock No. 233-0608
  • Mfr. Part No. BK4-HTC-528M
1 Box of 4000
PHP383,285.18(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0296
  • Mfr. Part No. 8GK1062-2KK11
Each
PHP36,911.88(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 2P, 15A Curve C, 440V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 664-297
  • Mfr. Part No. 5SY4218-7
Each
PHP6,574.28(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 4A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3467
  • Mfr. Part No. A9F55104
Each
PHP2,081.86(exc. VAT)
In Stock
ABB FS401 RCCB, 16A, 1+N Pole, 30mA, Type C
  • RS Stock No. 178-106
  • Mfr. Part No. 2CCL562111E0164 - FS401E-C16/0.03
Each
PHP8,683.64(exc. VAT)
Limited stock
Limitor Thermal Fuse +121°C 10 A/15 A, 250V ac
  • RS Stock No. 797-6042
  • Mfr. Part No. SF 119 R
Each (In a Pack of 10)
PHP56.987(exc. VAT)
In Stock
Eaton PKN6/M RCD, 6A, 2 Pole, 30mA, Type C, 230V ac
  • RS Stock No. 922-8698
  • Mfr. Part No. 236017 PKNM-6/1N/C/003-MW
Each
PHP11,507.51(exc. VAT)
Temporarily out of stock
Siemens 10A Diazed Fuse, gG, 690/600V ac/dc
  • RS Stock No. 167-688
  • Mfr. Part No. 5SD8010
1 Pack of 5
PHP8,464.40(exc. VAT)
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