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

225 of 999+
Temporarily out of stock
MECATRACTION
  • RS Stock No. 200-6949
  • Mfr. Part No. C6RG1-25
Each (In a Box of 6)
PHP383.65(exc. VAT)
Temporarily out of stock
ABB SACE Emax 2 Fixed Part for use with Circuit Breaker
  • RS Stock No. 231-9316
  • Mfr. Part No. 1SDA073910R1 E2.2 W FP Iu=2000 4p HR
Each
PHP183,581.12(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-6483
  • Mfr. Part No. 1SDA067926R1 XT2L 160 Ekip LSI 63A FF
Each
PHP95,074.96(exc. VAT)
In Stock
Mersen 315A size 31 FF Square Body Fuse, aR, 700V
  • RS Stock No. 304-2063
  • Mfr. Part No. Q300003
Each
PHP13,315.00(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 1.25kA, Breaking Capacity 42 kA, Fixed Mount
  • RS Stock No. 345-321
  • Mfr. Part No. C125H42AFM
Each
PHP1,098,509.59(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 80A, Plug In
  • RS Stock No. 122-461
  • Mfr. Part No. LV510336P
Each
PHP8,398.40(exc. VAT)
In Stock
Siemens 63A D02 Neozed Fuse, gG, 400V ac
  • RS Stock No. 622-1130
  • Mfr. Part No. 5SE2363
Each (In a Pack of 10)
PHP291.319(exc. VAT)
Temporarily out of stock
Eaton Eaton xEffect SASY 60i Busbar
  • RS Stock No. 243-784
  • Mfr. Part No. 107069 BBS-2/FL
Each (In a Pack of 2)
PHP919.34(exc. VAT)
In Stock
Better World
Siemens SENTRON 5SL60 MCB, 1P + N, 10A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-343
  • Mfr. Part No. 5SL6010-7KL
Each
PHP4,970.48(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4819
  • Mfr. Part No. 3VA2563-6KQ42-0AA0
Each
PHP276,600.98(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 28 Way, 100 A
  • RS Stock No. 336-617
  • Mfr. Part No. SEA9APN14S14
Each
PHP300,262.56(exc. VAT)
In Stock
Omron Busbar
  • RS Stock No. 111-3529
  • Mfr. Part No. PYDN-7.75-200S
Each
PHP480.69(exc. VAT)
In Stock
Eaton 25A Bolted Tag Fuse, 500 V dc, 690V ac, 63.5mm
  • RS Stock No. 182-1629
  • Mfr. Part No. 25ET
Each
PHP1,166.98(exc. VAT)
In Stock
nVent ERICO Earth Bar
  • RS Stock No. 277-6236
  • Mfr. Part No. EEB06C506D0A
Each
PHP15,477.79(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS Stock No. 157-167
  • Mfr. Part No. 3VA2216-7MQ32-0AA0
Each
PHP163,050.15(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 800A, Breaking Capacity 75 kA
  • RS Stock No. 340-922
  • Mfr. Part No. C080B4WM
Each
PHP385,102.16(exc. VAT)
In Stock
Better World
Siemens RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6201
  • Mfr. Part No. 5SU1326-7FP32
Each
PHP9,523.08(exc. VAT)
Currently unavailable
Schurter PC Board Non Resettable Fuse 2.5A, 125V ac/dc
  • RS Stock No. 865-7834
  • Mfr. Part No. 0034.4225
Each (In a Pack of 10)
PHP125.048(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 25A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 354-359
  • Mfr. Part No. A9C61425
Each
PHP33,351.33(exc. VAT)
In Stock
Eaton Eaton xEnergy Main Partitions for use with NZM4
  • RS Stock No. 244-356
  • Mfr. Part No. 184665 XTPPN4CH
Each
PHP1,649.50(exc. VAT)
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