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

186 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 229-928
  • Mfr. Part No. 113334 NZMH2-A160-SVE
Each
PHP101,755.53(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 18.5 kA, Plug In
  • RS Stock No. 231-341
  • Mfr. Part No. 113193 NZMB2-A160-SVE
Each
PHP78,222.73(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9613
  • Mfr. Part No. 3VA10634ED460AA0
Each
PHP27,968.69(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 150A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 432-913
  • Mfr. Part No. NJGF36150TW
Each
PHP215,162.36(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-143
  • Mfr. Part No. 113352 NZMH2-A25-SVE
Each
PHP43,986.54(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 7.5 kA, Plug In
  • RS Stock No. 229-509
  • Mfr. Part No. 112796 NZMH1-A25-SVE
Each
PHP40,394.31(exc. VAT)
Eaton 40A Orange Blade Car Fuse, 32V dc No
  • RS Stock No. 852-7358
  • Mfr. Part No. ATC-40
Each
PHP54.27(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-236
  • Mfr. Part No. 3VA5120-6EC31-1AA0
Each
PHP33,678.41(exc. VAT)
Schneider Electric Acti9 A9F MCB, 2P, 16A, Type AC, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 288-7078
  • Mfr. Part No. A9F90216
Each
PHP8,581.78(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9609
  • Mfr. Part No. 3VA10633ED360AA0
Each
PHP23,831.02(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-548
  • Mfr. Part No. 3VA5125-6ED31-1AA0
Each
PHP32,778.14(exc. VAT)
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-642
  • Mfr. Part No. BE 44
Each
PHP2,082.81(exc. VAT)
ABB PS1 1 Phase Busbar, 400V ac, 16mm Pitch
  • RS Stock No. 539-1632
  • Mfr. Part No. 2CDL210001R1660 PS1/60/16
Each
PHP2,558.54(exc. VAT)
Eaton RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 120-977
  • Mfr. Part No. 168201 FRBDM-C6/2/003-G/A
Each
PHP13,707.08(exc. VAT)
ABB Plastic Consumer Unit, IP65 1SLM006501A
  • RS Stock No. 286-4983
  • Mfr. Part No. 1SLM006501A2217
Each
PHP10,733.37(exc. VAT)
ABB S802C MCB, 2P, 16A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-516
  • Mfr. Part No. 2CCS882001R0165
Each
PHP9,044.58(exc. VAT)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 400/630 Circuit Breakers
  • RS Stock No. 260-8067
  • Mfr. Part No. C4032D250
Each
PHP111,083.43(exc. VAT)
Eaton NZM Jumper Link for use with N3-4-…-S1(-S15)-DC
  • RS Stock No. 121-184
  • Mfr. Part No. 170121 NZM3-4-XKVI2POU-K
Each
PHP30,143.16(exc. VAT)
RS PRO 3A Violet Blade Car Fuse, 32V dc
  • RS Stock No. 563-740
Each (In a Pack of 10)
PHP27.537(exc. VAT)
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-034
  • Mfr. Part No. KV 1518
Each
PHP9,046.43(exc. VAT)
1
186
1676
Results per page

Related links