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

33493 Products showing for Fuses & Circuit Breakers

9 of 999+
RS PRO 2A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6079
Each (In a Pack of 10)
PHP38.106(exc. VAT)
Sato Parts Panel Mount Fuse Holder for 5 x 20 mm, 6.3 x 32 mm Fuse
  • RS Stock No. 371-8552
  • Mfr. Part No. F-7155
Each (In a Pack of 5)
PHP305.542(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS Stock No. 260-7974
  • Mfr. Part No. C25R3TM200
Each
PHP167,904.90(exc. VAT)
Eaton xEffect FAZ MCB, 2P, 30A Curve D, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 240-572
  • Mfr. Part No. 102193 FAZ-D30/2-NA
Each
PHP12,316.23(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 300A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 231-304
  • Mfr. Part No. 107519 NZMC2-A300
Each
PHP115,244.73(exc. VAT)
WJ Furse Lightning Earth Inspection Pit W. 300mm x 300mm H. 158mm 5000kg
  • RS Stock No. 124-2510
  • Mfr. Part No. 7TCA083320R0011 PT205
Each
PHP2,879.20(exc. VAT)
Siemens 400V ac Push Button
  • RS Stock No. 231-8414
  • Mfr. Part No. 5TE4811-2
Each
PHP4,947.16(exc. VAT)
ABB S800S MCB, 2P, 63A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-077
  • Mfr. Part No. 2CCS862001R0597
Each
PHP20,569.39(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 2P, 20A Curve B, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-882
  • Mfr. Part No. A9K11220
Each
PHP936.67(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 40A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-912
  • Mfr. Part No. A9K02140
Each
PHP287.88(exc. VAT)
Mersen 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-6956
  • Mfr. Part No. D213098
Each (In a Pack of 10)
PHP83.931(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 30A, Breaking Capacity 35 kA, DIN Rail Mount
  • RS Stock No. 357-068
  • Mfr. Part No. BGF36030
Each
PHP72,552.87(exc. VAT)
Better World
Schneider Electric, ComPact MCCB, Fixed Mount
  • RS Stock No. 221-0946
  • Mfr. Part No. LV429406
Each
PHP14,403.75(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 32A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-924
  • Mfr. Part No. A9K12332
Each
PHP2,066.70(exc. VAT)
ABB System Pro M Compact S200 M UC MCB, 4P, 63A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-437
  • Mfr. Part No. 2CDS274061R0607
Each
PHP78,511.36(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3341
  • Mfr. Part No. A9F54210
Each
PHP4,623.14(exc. VAT)
Eaton 4A Cartridge Fuse, 440 x 41.3mm
  • RS Stock No. 228-882
  • Mfr. Part No. 38CAV4E
1 Pack of 3
PHP58,123.71(exc. VAT)
RS PRO Single Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-802
Each
PHP5,485.41(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8087
  • Mfr. Part No. C40F3
Each
PHP129,683.17(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4171
  • Mfr. Part No. 3VA1112-4ED36-0AA0
Each
PHP34,774.71(exc. VAT)
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