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

74 of 999+
In Stock
Europa 3 Phase Distribution Board, 18 Way, 125 A
  • RS Stock No. 849-6415
  • Mfr. Part No. TPN06
Each
PHP24,723.64(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-450
  • Mfr. Part No. KV 1512 M
Each
PHP6,724.89(exc. VAT)
In Stock
Better World
Schneider Electric 2P Switch Disconnector Circuit Trip for use with Acti 9 Isobar A type Distribution Boards
  • RS Stock No. 806-7307
  • Mfr. Part No. SEA91252
Each
PHP3,723.25(exc. VAT)
In Stock
Schneider Electric Acti9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 212-255
  • Mfr. Part No. A9XPH416
Each
PHP3,041.38(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 20A Curve C, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-901
  • Mfr. Part No. A9K02320
Each
PHP1,572.58(exc. VAT)
In Stock
ABB 125A Centred Tag Fuse, NH00, 500V
  • RS Stock No. 779-9987
  • Mfr. Part No. OFAF00H125 1SCA022627R1630
Each
PHP568.47(exc. VAT)
Temporarily out of stock
Better World
Siemens 5SM2645 RCCB, 25A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 231-8372
  • Mfr. Part No. 5SV3312-6GV01
Each (In a Pack of 36)
PHP4,113.155(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3775
  • Mfr. Part No. 3VA2110-6HL42-0AA0
Each
PHP71,097.83(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.25kA , 4 channels , Fixed
  • RS Stock No. 132-714
  • Mfr. Part No. 183773 IZMX40H4-P12F-1
Each
PHP1,046,203.57(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 63A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-056
  • Mfr. Part No. 2CDS273061R0634
Each
PHP58,338.01(exc. VAT)
In Stock
Eaton 2A Grey Blade Car Fuse, 32V ac/dc
  • RS Stock No. 852-7317
  • Mfr. Part No. ATM-2
Each
PHP116.89(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 35A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 246-145
  • Mfr. Part No. 132786 FAZ-B35/3-RT
Each
PHP13,562.52(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 400A, Breaking Capacity 40 kA, Fixed Mount
  • RS Stock No. 260-8100
  • Mfr. Part No. C40F44V400
Each
PHP536,276.25(exc. VAT)
Temporarily out of stock
Eaton IZMX40H4-V25F-1 Electronic Circuit Breaker 2.5kA , Fixed
  • RS Stock No. 132-761
  • Mfr. Part No. 183915 IZMX40H4-V25F-1
Each
PHP1,626,645.34(exc. VAT)
Temporarily out of stock
Legrand 100A Cartridge Fuse, 61 x 125mm, 500V
  • RS Stock No. 266-3184
  • Mfr. Part No. 0 166 45
1 Box of 3
PHP10,087.00(exc. VAT)
In Stock
Littelfuse 2A Grey Blade Car Fuse, 32V dc
  • RS Stock No. 787-4117
  • Mfr. Part No. 0297002.WXNV
Each (In a Pack of 10)
PHP15.444(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 63A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3060
  • Mfr. Part No. A9N18364
Each
PHP23,155.43(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
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 70 kA
  • RS Stock No. 209-6840
  • Mfr. Part No. 3VA1150-6MH32-0AA0
Each
PHP24,805.85(exc. VAT)
Temporarily out of stock
ABB 50A Tag Fuse, 150 x 40 x 72mm, 500V
  • RS Stock No. 251-3471
  • Mfr. Part No. 1SCA022627R5030
1 Box of 3
PHP4,839.30(exc. VAT)
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