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

49110 Products showing for Fuses & Circuit Breakers

102 of 999+
Temporarily out of stock
Better World
Schneider Electric Acti 9 Distribution Board, 13 Way, 250 A
  • RS Stock No. 806-7402
  • Mfr. Part No. SEA9BN12PEV
Each
SGD550.67(exc. GST)
In Stock
Better World
Schneider Electric ComPact NSX, Easy Pact CVS Terminal Extention for use with ComPact NSX, Easy Pact CVS circuit
  • RS Stock No. 219-9351
  • Mfr. Part No. LV429263
Each
SGD85.60(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 4P, 32A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-6006
  • Mfr. Part No. P1MB4PD32
Each
SGD193.95(exc. GST)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV3P 3 Pole 690V ac Voltage Rating DIN Rail Mount, 80A Current Rating
  • RS Stock No. 188-4740
  • Mfr. Part No. GV3P80
Each
SGD324.24(exc. GST)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1496
  • Mfr. Part No. GV4P115B
Each
SGD1,268.51(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 2P, 10A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9126
  • Mfr. Part No. M9F22210
Each
SGD251.33(exc. GST)
In Stock
RS PRO 100mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 610-9850
Each (In a Pack of 10)
SGD1.01(exc. GST)
In Stock
Eaton 315mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-8651
  • Mfr. Part No. S506-315-R
Each (In a Pack of 10)
SGD0.356(exc. GST)
In Stock
Littelfuse 500mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-4230
  • Mfr. Part No. 0218.500MXP
Each (In a Pack of 10)
SGD1.213(exc. GST)
In Stock
RS PRO 3A Resettable Fuse, 24V dc
  • RS Stock No. 279-6768
Each (In a Pack of 10)
SGD0.941(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 40A Curve C, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2362
  • Mfr. Part No. M9F22140
Each
SGD79.55(exc. GST)
In Stock
PTC Resettable Fuse 16V 2.6A 1812
  • RS Stock No. 560-351
  • Mfr. Part No. 0ZCG0260BF2B
Each
SGD0.39(exc. GST)
Temporarily out of stock
Siemens 35A Diazed Fuse, gG, 690/600V ac/dc
  • RS Stock No. 167-694
  • Mfr. Part No. 5SD8035
1 Pack of 5
SGD228.72(exc. GST)
In Stock
Better World
Schneider Electric Surge Protector, 65kA, Clip-On Mount
  • RS Stock No. 212-0148
  • Mfr. Part No. A9L65501
Each
SGD249.48(exc. GST)
In Stock
Phoenix Contact AZK 35 Busbar
  • RS Stock No. 248-2136
  • Mfr. Part No. 0702997
Each (In a Pack of 10)
SGD24.638(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 1A Curve B, 277V AC
  • RS Stock No. 256-6751
  • Mfr. Part No. M9F21201
Each
SGD205.97(exc. GST)
In Stock
ABB DDA 200 A RCD, 25A, 3 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 610-3868
  • Mfr. Part No. 2CSB203101R1250 - DDA203A-25/0.03
Each
SGD179.01(exc. GST)
In Stock
Littelfuse 11A F Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 738-3197P
  • Mfr. Part No. 0FLU011.T
Each (Supplied in a Bag)
SGD62.62(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Linergy Busbar
  • RS Stock No. 744-6992
  • Mfr. Part No. LAD9P32
Each
SGD26.01(exc. GST)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 1P, 3A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 521-4945
  • Mfr. Part No. 5SY6103-7
Each
SGD38.88(exc. GST)
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