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

33476 Products showing for Fuses & Circuit Breakers

58 of 999+
In Stock
Littelfuse 40A Orange Blade Car Fuse, 32V dc
  • RS Stock No. 787-4145
  • Mfr. Part No. 0287040.PXCN
Each (In a Pack of 10)
PHP17.424(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 250A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9773
  • Mfr. Part No. LV525453
Each
PHP81,900.89(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric iID RCD, 63A, 100mA
  • RS Stock No. 776-3694
  • Mfr. Part No. A9R12263
Each
PHP14,590.01(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 4A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3467
  • Mfr. Part No. A9F55104
Each
PHP2,081.86(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4275
  • Mfr. Part No. 3VA1163-4EF36-0AA0
Each
PHP27,756.96(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • RS Stock No. 156-622
  • Mfr. Part No. 3VA2440-8HN32-0AA0
Each
PHP270,766.57(exc. VAT)
In Stock
Schurter OGN Series Thermoplastic PCB Mount Fuse Holder Cover for 5 x 20mm Fuse, IP00
  • RS Stock No. 173-9731
  • Mfr. Part No. 0853.0551
Each (In a Bag of 100)
PHP27.329(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 45A
  • RS Stock No. 221-0895
  • Mfr. Part No. BDL36045LU
Each
PHP26,265.03(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)
In Stock
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)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 600A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9799
  • Mfr. Part No. LV563316
Each
PHP117,122.40(exc. VAT)
In Stock
Europa 3 Phase Distribution Board, 18 Way, 125 A
  • RS Stock No. 849-6415
  • Mfr. Part No. TPN06
Each
PHP24,723.64(exc. VAT)
In Stock
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8121
  • Mfr. Part No. C40N3
Each
PHP84,823.21(exc. VAT)
Temporarily out of stock
Z-R23 ICS-R16 MCB, 16A, 240V AC, 24V DC
  • RS Stock No. 261-954
  • Mfr. Part No. ICS-R16D024B100 Z-R23/16-10
1 Pack of 2
PHP3,807.84(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 12.5A, Fixed Mount
  • RS Stock No. 260-7460
  • Mfr. Part No. C10V3MA013
Each
PHP72,802.33(exc. VAT)
In Stock
Better World
Schneider Electric TeSys GV5P MCB, 3P, 150A, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 188-4748
  • Mfr. Part No. GV5P150F
Each
PHP59,379.68(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 175A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 429-081
  • Mfr. Part No. NJGF36175TW
Each
PHP253,973.88(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact NSX, Easy Pact CVS, FuPact INFB Crimp Lug for use with For copper cable 300 mm2
  • RS Stock No. 219-9402
  • Mfr. Part No. LV432503
Each
PHP9,477.77(exc. VAT)
Temporarily out of stock
Eaton MCB, 3+N, 6A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 244-016
  • Mfr. Part No. 101338 PLI-C6/3N
Each
PHP13,782.45(exc. VAT)
In Stock
ABB F200 RCCB, 63A, 2 Pole, 30mA, Type AC
  • RS Stock No. 537-7377
  • Mfr. Part No. 2CSF202001R1630 F202 AC-63/0,03
Each
PHP12,298.67(exc. VAT)
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