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

33502 Products showing for Fuses & Circuit Breakers

204 of 999+
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7807
  • Mfr. Part No. C16N3TM160
Each
PHP84,840.84(exc. VAT)
Siemens, SENTRON MCCB 2P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-642
  • Mfr. Part No. 3VA5210-6ED61-0AA0
Each
PHP87,064.53(exc. VAT)
Eaton xEffect FAZ MCB, 3P, 50A Curve C, 240V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 239-786
  • Mfr. Part No. 190791 FAZ-C50/3-NA
Each
PHP24,852.40(exc. VAT)
Schneider Electric R9R RCCB, 25A, 2 Pole, 10mA, Type A, 230V ac
  • RS Stock No. 212-340
  • Mfr. Part No. R9R26225
Each
PHP9,604.35(exc. VAT)
Schneider Electric R9R RCCB, 25A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 654-672
  • Mfr. Part No. R9R22225
Each
PHP6,867.78(exc. VAT)
Siemens 500A Slotted Tag Fuse, NH2, 690V
  • RS Stock No. 230-3002
  • Mfr. Part No. 3NE1334-3
Each (In a Pack of 3)
PHP21,447.987(exc. VAT)
RS PRO Non Resettable Fuse 2A, 250V ac
  • RS Stock No. 139-964
1 Bag of 10
PHP402.85(exc. VAT)
Eaton 20A Fuse Holder for 79 x 27 x 55mm Fuse, 1P, 690V ac
  • RS Stock No. 261-368
  • Mfr. Part No. RS20HWH
1 Pack of 10
PHP17,038.93(exc. VAT)
ABB FH200 RCCB, 25A, 2 Pole, 30mA, Type AC
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Each
PHP3,371.62(exc. VAT)
Eaton 63A Centred Tag Fuse, NH00, 500V ac
  • RS Stock No. 181-8814
  • Mfr. Part No. 63NHM00B
Each
PHP943.30(exc. VAT)
Bourns 40A Tag Fuse, 38mm, 170V dc, 24.1mm
  • RS Stock No. 254-4219
  • Mfr. Part No. PF-NT2-40
Each (In a Box of 10)
PHP1,345.268(exc. VAT)
Better World
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis KBB Series
  • RS Stock No. 211-0390
  • Mfr. Part No. KBB40ED4300W
Each
PHP11,977.60(exc. VAT)
Eaton 630A Centred Tag Fuse, NH3, 500V ac
  • RS Stock No. 703-8768P
  • Mfr. Part No. 630NHG3B
Each (Supplied in a Box)
PHP2,490.41(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 32A, Fixed Mount
  • RS Stock No. 260-9431
  • Mfr. Part No. C10F3TM032
Each
PHP44,802.57(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 70A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-062
  • Mfr. Part No. 3VA5270-5ED31-2AA0
Each
PHP68,985.56(exc. VAT)
Schneider Electric, NSX MCCB 3P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 219-8353
  • Mfr. Part No. LV430880
Each
PHP130,721.49(exc. VAT)
Mersen 10A Bolted Tag Fuse, A2, 460 V dc, 690V ac, 73mm
  • RS Stock No. 178-1090
  • Mfr. Part No. K1019254 / BTIA69V10
Each (In a Pack of 10)
PHP576.762(exc. VAT)
Schneider Electric 440V ac Circuit Breaker Circuit Trip for use with Circuits
  • RS Stock No. 130-545
  • Mfr. Part No. C11E34V100L
Each
PHP136,462.72(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 30A, Breaking Capacity 14 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-558
  • Mfr. Part No. 3VA5130-4ED11-1AA0
Each
PHP18,921.42(exc. VAT)
Schneider Electric Acti9 Acti9 Reflex MCB, 2P, 63A Curve C, 230V AC, 24V DC, 10 KA Breaking Capacity
  • RS Stock No. 205-169
  • Mfr. Part No. A9C62263
Each
PHP120,416.67(exc. VAT)
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