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

33502 Products showing for Fuses & Circuit Breakers

153 of 999+
In Stock
Better World
Schneider Electric Linergy Busbar, 690V, 60mm Pitch
  • RS Stock No. 211-2325
  • Mfr. Part No. LV432623
Each
PHP27,324.10(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 40A, 4 Pole, 100mA, Type A, 240/415V ac
  • RS Stock No. 123-243
  • Mfr. Part No. 170339 FRCMM-40/4/01-A
Each
PHP11,748.89(exc. VAT)
Temporarily out of stock
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 251-130
  • Mfr. Part No. 192362 NZMH3-PX630
Each
PHP305,910.71(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4106 MCB, 1P, 6A Curve D, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 300-095
  • Mfr. Part No. 5SJ4106-8HG41
Each
PHP4,647.91(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 3 Pole, 100mA, 240/415V ac
  • RS Stock No. 123-167
  • Mfr. Part No. 170162 FBSMV-40/3/01-S/A
Each
PHP13,216.52(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 28 Way, 125 A
  • RS Stock No. 339-808
  • Mfr. Part No. SEA14S14
Each
PHP162,353.68(exc. VAT)
Temporarily out of stock
ABB 355A Tag Fuse, 150 x 51 x 84mm, 500V
  • RS Stock No. 250-4452
  • Mfr. Part No. 1SCA022698R0010
Each
PHP3,821.79(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 100/160 Circuit Breakers
  • RS Stock No. 260-9381
  • Mfr. Part No. C104MG040
Each
PHP16,309.81(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 13A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-638
  • Mfr. Part No. 102288 FAZ-C13/3-RT
Each
PHP15,028.73(exc. VAT)
In Stock
Eaton 12A Bolted Tag Fuse, 500 V dc, 690V ac, 63.5mm
  • RS Stock No. 181-8507
  • Mfr. Part No. 12ET
Each (In a Box of 10)
PHP1,159.85(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4048
  • Mfr. Part No. 3VA2110-8KQ46-0AA0
Each
PHP163,033.87(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 654-971
  • Mfr. Part No. C063N320FM
Each
PHP254,321.69(exc. VAT)
In Stock
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 250A, Fixed Mount
  • RS Stock No. 232-0281
  • Mfr. Part No. 1SDA068475R1 XT4S 250 Ekip LS/I 250A FF
Each
PHP63,022.53(exc. VAT)
In Stock
Siemens 25A DII Bottle Fuse, E27 Thread Size, gR, 500V ac/dc
  • RS Stock No. 847-0983
  • Mfr. Part No. 5SD440
Each
PHP743.18(exc. VAT)
In Stock
Better World
Schneider Electric Plug In Kit for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1182
  • Mfr. Part No. LV429290
Each
PHP34,366.15(exc. VAT)
In Stock
Hinode Electric Co Ltd 40A Bolted Tag Fuse, 61mm
  • RS Stock No. 103-4245
  • Mfr. Part No. 660GH-040
Each (In a Pack of 5)
PHP1,315.532(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 200A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 230-392
  • Mfr. Part No. 113382 NZMH2-4-A200-SVE
Each
PHP147,574.84(exc. VAT)
Temporarily out of stock
Littelfuse 125A Green Bolt Down Car Fuse, 32V dc
  • RS Stock No. 787-4413P
  • Mfr. Part No. 0298125.ZXEH
Each (Supplied in a Bag)
PHP350.96(exc. VAT)
In Stock
RS PRO 125A Slotted Tag Fuse, 17.4 x 42mm, 240V, 42mm
  • RS Stock No. 188-4661
Each
PHP2,059.10(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 230-301
  • Mfr. Part No. 110292 NZMH2-A125-BT
Each
PHP83,574.43(exc. VAT)
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