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

1646 of 999+
Eaton RCBO, 13A Current Rating, 4P Poles, 100mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS Stock No. 123-351
  • Mfr. Part No. 170898 FRBM6-B13/3N/01-A
Each
PHP16,418.38(exc. VAT)
Better World
ABB, XT2L MCCB 3P 8A, Fixed Mount
  • RS Stock No. 236-7401
  • Mfr. Part No. 1SDA067635R1 XT2L 160 TMD 8A FF
Each
PHP34,847.46(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4628
  • Mfr. Part No. 3VA2140-6HM36-0AA0
Each
PHP77,903.03(exc. VAT)
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8781
  • Mfr. Part No. 5SU1654-7KK10
Each
PHP11,354.55(exc. VAT)
Siemens SIRIUS Adapter for use with 3TK2810-1
  • RS Stock No. 271-9543
  • Mfr. Part No. 3TK28101B
Each
PHP12,906.04(exc. VAT)
Siemens SENTRON Local Electric Close
  • RS Stock No. 277-0759
  • Mfr. Part No. 3WA9111-0AH21
1 Set
PHP4,000.67(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4597
  • Mfr. Part No. 3VA2140-0HM36-0AA0
Each
PHP92,769.95(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-8024
  • Mfr. Part No. C25V46E160
Each
PHP336,867.31(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-142
  • Mfr. Part No. 3VA6580-6HM42-2AA0
Each
PHP571,825.02(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4612
  • Mfr. Part No. 3VA2140-0KQ46-0AA0
Each
PHP169,381.06(exc. VAT)
Littelfuse SMD Non Resettable Fuse 2A, 125V
  • RS Stock No. 787-4328
  • Mfr. Part No. 0449002.MR
Each (In a Pack of 5)
PHP120.464(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7612
  • Mfr. Part No. C11F4TM100B
Each
PHP47,929.82(exc. VAT)
Eaton NZM Undervoltage Release for use with N(S)1(-4), NZM1(-4)
  • RS Stock No. 123-095
  • Mfr. Part No. 171801 NZM1-XUHIVL18DC
Each
PHP13,256.68(exc. VAT)
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 229-657
  • Mfr. Part No. 110272 XBSB253-STS
Each
PHP14,955.42(exc. VAT)
ABB System Pro M Compact SU200 MR Circuit Breaker, 1P, 63A Curve K, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 204-335
  • Mfr. Part No. 2CDS271347R0607
Each
PHP18,192.66(exc. VAT)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX630 Circuit Breakers
  • RS Stock No. 260-8177
  • Mfr. Part No. C6332M500
Each
PHP117,406.28(exc. VAT)
Eaton Busbar Support, xEnergy Light Series
  • RS Stock No. 103-797
  • Mfr. Part No. 138269 KSX-34P-MID
Each
PHP14,987.69(exc. VAT)
Eaton 250A Tag Fuse, 31 x 131mm, 690V
  • RS Stock No. 254-763
  • Mfr. Part No. 250NHM2B-690
1 Pack of 3
PHP5,627.05(exc. VAT)
Siemens 3SX5601 Cable Gland for use with Safety Switch
  • RS Stock No. 271-9536
  • Mfr. Part No. 3SX56011A
Each
PHP713.00(exc. VAT)
Schurter SMD Non Resettable Fuse 160mA, 125 V dc, 250V ac
  • RS Stock No. 173-7919
  • Mfr. Part No. 3404.2408.22
1 Reel of 1000
PHP73,688.88(exc. VAT)
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