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

54 of 999+
In Stock
Better World
Schneider Electric Linergy 3 Phase Busbar, 690V, 54mm Pitch
  • RS Stock No. 608-8258
  • Mfr. Part No. GV2G554
Each
PHP3,449.17(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 2P, 25A, Type Z, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-260
  • Mfr. Part No. 2CDS252001R0518
Each
PHP7,381.07(exc. VAT)
In Stock
Eaton 80A British Standard Fuse, A4, 660V ac, 93.7mm
  • RS Stock No. 418-530
  • Mfr. Part No. TCP80
Each
PHP2,982.75(exc. VAT)
In Stock
Schneider Electric Acti9 iID RCCB, 80A, 2 Pole, 30mA, Type AC, 240V ac
  • RS Stock No. 589-856
  • Mfr. Part No. A9R11280
Each
PHP20,841.52(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 9 Way, 63 A
  • RS Stock No. 183-2856
  • Mfr. Part No. KV7109
Each
PHP4,442.30(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 80A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3064
  • Mfr. Part No. A9N18365
Each
PHP15,721.50(exc. VAT)
Temporarily out of stock
ABB 315A Tag Fuse, NH1, 500V
  • RS Stock No. 251-3468
  • Mfr. Part No. 1SCA022627R4730
1 Box of 3
PHP5,863.02(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 2P, 20A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-217
  • Mfr. Part No. 2CCS862001R0205
Each
PHP14,161.84(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 239-812
  • Mfr. Part No. 191589 NZMN3-VX630-BT
Each
PHP232,762.11(exc. VAT)
In Stock
Littelfuse 0.2A Resettable Fuse, 24V dc
  • RS Stock No. 506-937
  • Mfr. Part No. NANOSMDC020F
Each (In a Pack of 10)
PHP18.637(exc. VAT)
Temporarily out of stock
ABB, T7H MCCB 4P 1.6kA, Fixed Mount
  • RS Stock No. 237-6026
  • Mfr. Part No. 1SDA063037R1 T7H 1600A PR332-LI FF
Each
PHP380,098.36(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 3P, 3A Curve D, 400V AC, 180V DC, 50 kA Breaking Capacity
  • RS Stock No. 287-5953
  • Mfr. Part No. A9F75303
Each
PHP19,282.62(exc. VAT)
Temporarily out of stock
ABB Flange for use with Tmax XT
  • RS Stock No. 236-6845
  • Mfr. Part No. 1SDA068645R1
Each
PHP2,446.92(exc. VAT)
Temporarily out of stock
WJ Furse Copper Earth Clamp Max. Conductor Size 25 x 3mm Nominal Rod dia. 10mm 26mm
  • RS Stock No. 153-2956
Each (In a Pack of 10)
PHP632.183(exc. VAT)
Temporarily out of stock
Eaton 6A Bolted Tag Fuse, F2, 550V ac
  • RS Stock No. 181-8530
  • Mfr. Part No. ESD6
1 Box of 20
PHP8,756.13(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 7 kA
  • RS Stock No. 159-511
  • Mfr. Part No. 3VA1150-3ED36-0AA0
Each
PHP24,559.15(exc. VAT)
In Stock
ABB XT1, XT3 Removable Lock for use with Tmax XT
  • RS Stock No. 831-9204
  • Mfr. Part No. 1SDA066588R1
Each
PHP1,755.61(exc. VAT)
In Stock
Eaton 45A British Standard Fuse, FE, 690 V ac, 500V dc, 63.5mm
  • RS Stock No. 156-8951
  • Mfr. Part No. 45FE
Each
PHP1,689.73(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 6.3A, 250V ac
  • RS Stock No. 767-5068
Each (In a Pack of 10)
PHP23.806(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 32A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-179
  • Mfr. Part No. 2CDS273001R0537
Each
PHP30,863.67(exc. VAT)
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