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

211 of 999+
Temporarily out of stock
Schneider Electric A9N RCCB, 125A, 3 Pole, 300mA, Type AC, 230 → 415V ac
  • RS Stock No. 654-560
  • Mfr. Part No. A9N18546
Each
PHP59,614.68(exc. VAT)
Temporarily out of stock
Schneider Electric A9N RCCB, 125A, 2 Pole, 300mA, Type AC, 230 → 415V ac
  • RS Stock No. 653-962
  • Mfr. Part No. A9N18544
Each
PHP33,548.43(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM-125 Type A RCCB, 125A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-387
  • Mfr. Part No. 171168 FRCMM-125/2/003-G/A
Each
PHP147,313.44(exc. VAT)
In Stock
Selco Thermal Fuse +240°C 10 A, 250V ac
  • RS Stock No. 111-7813
  • Mfr. Part No. SWTC-464-3535
Each (In a Pack of 10)
PHP146.696(exc. VAT)
Temporarily out of stock
Siemens 8GK Support for use with ALPHA Distribution Board
  • RS Stock No. 229-9889
  • Mfr. Part No. 8GK9910-0KK05
Each (In a Pack of 20)
PHP211.96(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 5A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-533
  • Mfr. Part No. 102123 FAZ-C5/1-RT
Each
PHP4,655.24(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 35A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-546
  • Mfr. Part No. 102295 FAZ-C35/3-RT
Each
PHP16,788.20(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 25A Curve D, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 235-150
  • Mfr. Part No. 102272 FAZ-D25/3-NA
Each
PHP17,301.37(exc. VAT)
In Stock
Miniature Circuit Breaker
  • RS Stock No. 599-635
  • Mfr. Part No. 2CCS472001R1064
Each
PHP15,815.13(exc. VAT)
Temporarily out of stock
RS PRO 10A British Standard Fuse, A2, 550V ac, 73mm
  • RS Stock No. 521-2573
Each (In a Pack of 5)
PHP343.342(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 iID RCCB, 40A, 2 Pole, 300mA, Type A-SI, 220 → 240V ac
  • RS Stock No. 654-749
  • Mfr. Part No. A9R61240
Each
PHP21,984.59(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 3, 3+N Phase Distribution Board, 24 Way, 250 A
  • RS Stock No. 654-823
  • Mfr. Part No. SEA9BPNAFD24
Each
PHP48,711.11(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 1kA, Fixed Mount
  • RS Stock No. 247-1763
  • Mfr. Part No. 33244
Each
PHP227,832.96(exc. VAT)
In Stock
Eaton, xEnergy MCCB 1P 100A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5545
  • Mfr. Part No. 259093 NZMN2-A200
Each
PHP40,841.90(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4859
  • Mfr. Part No. 3VA2580-7HL42-0AA0
Each
PHP415,135.71(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 1+N, 40A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 129-398
  • Mfr. Part No. 142512 FAZT-C40/1N
Each
PHP7,200.26(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 3P, 32A Curve D, 415V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 129-332
  • Mfr. Part No. 142499 FAZT-D32/3
Each
PHP25,682.32(exc. VAT)
Temporarily out of stock
HENSEL 1, 3 Phase Distribution Board, 54 Way, 63 A
  • RS Stock No. 183-2863
  • Mfr. Part No. KV9354M
Each
PHP13,912.22(exc. VAT)
In Stock
Better World
Schneider Electric Linergy Busbar, 690V, 45mm Pitch
  • RS Stock No. 608-8220
  • Mfr. Part No. GV2G345
Each
PHP2,064.02(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 1P, 10A Curve B, 240V AC, 10000 A Breaking Capacity
  • RS Stock No. 336-604
  • Mfr. Part No. SE10B110
Each
PHP4,307.87(exc. VAT)
1
211
1676
Results per page

Related links