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

281 of 999+
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 25A, 2 Pole, 300mA, Type A
  • RS Stock No. 211-9674
  • Mfr. Part No. 5SV3612-8
Each
PHP10,124.80(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric C120 RCD, 125A, 30mA
  • RS Stock No. 776-2859
  • Mfr. Part No. A9N18554
Each
PHP90,648.29(exc. VAT)
Temporarily out of stock
Eaton RCCB, 25A, 4 Pole, 100mA, Type S, 230 V ac, 400 V ac
  • RS Stock No. 227-0703
  • Mfr. Part No. 264298 PFGM-25/4/01-S
Each
PHP24,440.04(exc. VAT)
Last RS stock
Schurter PC Board Non Resettable Fuse, Axial 7A, 125V ac/dc
  • RS Stock No. 110-8559
  • Mfr. Part No. 7010.7140.13
Each (In a Pack of 5)
PHP86.396(exc. VAT)
Temporarily out of stock
ABB 2A Tag Fuse, 79 x 21 x 53mm, 500V
  • RS Stock No. 250-4352
  • Mfr. Part No. 1SCA022652R0360
1 Box of 3
PHP2,184.45(exc. VAT)
In Stock
Better World
Siemens 5SV3 RCCB, 40A, 2 Pole, 30mA, Type A
  • RS Stock No. 124-7729
  • Mfr. Part No. 5SV3314-6
Each
PHP5,162.66(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 110A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 147-671
  • Mfr. Part No. 3VA5211-5ED31-1AA0
Each
PHP83,154.84(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3817
  • Mfr. Part No. 3VA5110-5EC31-0AA0
Each
PHP34,408.19(exc. VAT)
Temporarily out of stock
Eaton xEffect RCCB, 25A, 2 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 246-628
  • Mfr. Part No. 187396 FRCMM-25/2/03-S/F
Each
PHP17,301.37(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 209-4859
  • Mfr. Part No. 3VA1110-4EE46-0AA0
Each
PHP39,018.39(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 1.25kA, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4881
  • Mfr. Part No. 3VA2612-5KQ32-0AA0
Each
PHP383,861.99(exc. VAT)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA52 250
  • RS Stock No. 269-7136
  • Mfr. Part No. 3VA9233-0JD11
Each (In a Pack of 3)
PHP3,448.453(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3732
  • Mfr. Part No. 3VA2040-5JP46-0AA0
Each
PHP122,669.84(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 1P 80A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 341-560
  • Mfr. Part No. BDF16080
Each
PHP34,737.64(exc. VAT)
In Stock
Eaton RCBO, 16A Current Rating, 3P Poles, Type C, MRB6 Range
  • RS Stock No. 282-7011
  • Mfr. Part No. 120660 mRB6-16/3N/C/003-A
Each
PHP33,361.50(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 201-6929
  • Mfr. Part No. 2CSR255080R1164 DS201 C16 AC30
Each
PHP11,725.16(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3669
  • Mfr. Part No. 3VA2025-7HM36-0AA0
Each
PHP93,499.51(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Surge Protector, 2kA, DIN Rail Mount
  • RS Stock No. 776-3874
  • Mfr. Part No. A9L16299
Each
PHP43,795.35(exc. VAT)
Temporarily out of stock
Siemens ALPHA Terminal Element for use with Terminal Block
  • RS Stock No. 210-9435
  • Mfr. Part No. 8GB2052-1
Each
PHP2,127.80(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3840
  • Mfr. Part No. 3VA2063-6HM36-0AA0
Each
PHP83,775.57(exc. VAT)
1
281
1676
Results per page

Related links