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

258 of 999+
In Stock
Better World
Schneider Electric Acti9 iIDK RCCB, 25A, 2 Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 238-3459
  • Mfr. Part No. A9R56225
Each
PHP12,719.09(exc. VAT)
Temporarily out of stock
ABB Plastic Consumer Unit, IP65 1SLM006501A
  • RS Stock No. 286-4980
  • Mfr. Part No. 1SLM006501A2214
Each
PHP5,913.96(exc. VAT)
Temporarily out of stock
ABB S804N MCB, 4P, 6A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-636
  • Mfr. Part No. 2CCS894001R0131
Each
PHP23,386.43(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 70A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-555
  • Mfr. Part No. 3VA5170-5EF31-0AA0
Each
PHP43,314.28(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 20 Way, 100 A
  • RS Stock No. 339-680
  • Mfr. Part No. SEA9APN10S10
Each
PHP284,674.29(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Earthing Strap Tinned Copper 200 x 27mm Diameter
  • RS Stock No. 222-3854
  • Mfr. Part No. NSYEB2025D8
Each (In a Pack of 10)
PHP1,121.416(exc. VAT)
In Stock
Littelfuse SMD Non Resettable Fuse 500mA, 600V
  • RS Stock No. 738-2970
  • Mfr. Part No. 0461.500ER
Each (In a Pack of 10)
PHP84.123(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 40A, Fixed Mount
  • RS Stock No. 260-7527
  • Mfr. Part No. C11B3TM040L
Each
PHP27,697.59(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4648
  • Mfr. Part No. 3VA2140-7HL32-0AA0
Each
PHP54,874.47(exc. VAT)
Temporarily out of stock
Siemens 200A Tag Fuse, NH1, 400V ac
  • RS Stock No. 143-921
  • Mfr. Part No. 3NA6140-4
1 Pack of 3
PHP3,473.86(exc. VAT)
Temporarily out of stock
Eaton MCB, 3P, 10A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 241-173
  • Mfr. Part No. 101319 PLI-C10/3
Each
PHP9,457.11(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IULBX11 2 Pole Panel Mount, 70A Current Rating
  • RS Stock No. 275-0306
  • Mfr. Part No. IULBX11-0-SW-70.0-N3
Each
PHP9,312.90(exc. VAT)
In Stock
SIBA 100A NH Fuse, NH00, 500V ac
  • RS Stock No. 421-586
  • Mfr. Part No. 20-001-04/100A
Each
PHP1,688.39(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 70 kA
  • RS Stock No. 209-7027
  • Mfr. Part No. 3VA1196-6EE32-0AA0
Each
PHP19,733.50(exc. VAT)
Temporarily out of stock
Siemens 5SM28 RCCB, 40A, 2 Pole, Type A, 230V
  • RS Stock No. 328-318
  • Mfr. Part No. 5SM2822-8
Each
PHP14,588.87(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 230-650
  • Mfr. Part No. 112737 NZMC1-A40-SVE
Each
PHP34,602.74(exc. VAT)
In Stock
Schneider Electric Acti9 iID RCCB, 63A, 2 Pole, 30mA, Type B-SI, 230V ac
  • RS Stock No. 655-448
  • Mfr. Part No. A9Z61263
Each
PHP196,932.81(exc. VAT)
In Stock
Schneider Electric Single Phase Surge Arrester, 20kA, 460V (Volts), Clip-On Mount
  • RS Stock No. 130-503
  • Mfr. Part No. A9L20421
Each
PHP71,399.32(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX400/630
  • RS Stock No. 260-8085
  • Mfr. Part No. C4046E400
Each
PHP207,057.02(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Connection Adapter for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1185
  • Mfr. Part No. LV429306
Each
PHP1,935.20(exc. VAT)
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