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

9 of 999+
ABB S802N MCB, 2P, 25A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-138
  • Mfr. Part No. 2CCS892001R0251
Each
PHP12,516.68(exc. VAT)
Siemens 3 Phase Surge Protector, 50kA, DIN Rail Mount
  • RS Stock No. 211-0182
  • Mfr. Part No. 5SD7414-2
Each
PHP50,999.97(exc. VAT)
ABB S802 Circuit Breaker, 2P, 32A Curve C, 690V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 287-6380
  • Mfr. Part No. 2CCS862001R0324
Each
PHP13,802.56(exc. VAT)
Eaton 3 Phase Surge Protector, 15kA, 110 → 230 V dc, 110 → 415V ac, DIN Rail Mount
  • RS Stock No. 847-3677
  • Mfr. Part No. 102036 FAZ-XAA-NA110-415VAC
Each
PHP3,408.93(exc. VAT)
Better World
ABB, XT3N MCCB 3P 200A, Breaking Capacity 37.5 kA, Fixed Mount
  • RS Stock No. 236-6652
  • Mfr. Part No. 1SDA068256R1 XT3N 250 TMG 200A FF
Each
PHP68,329.46(exc. VAT)
ABB PS3 3 Phase Busbar, 400V ac, 17.5mm Pitch
  • RS Stock No. 489-7218
  • Mfr. Part No. 2CDL230001R1060 - PS3/60
Each
PHP5,921.01(exc. VAT)
Schneider Electric TeSys Deca Auxiliary Contact for use with GV2 And GV3
  • RS Stock No. 212-239
  • Mfr. Part No. GVAE1TQ
Each
PHP871.97(exc. VAT)
RS PRO F, T Fuse Kit
  • RS Stock No. 893-8530
Each
PHP5,100.18(exc. VAT)
Mersen 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-6956
  • Mfr. Part No. D213098
Each (In a Pack of 10)
PHP83.931(exc. VAT)
Better World
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 236-6681
  • Mfr. Part No. 1SDA068304R1 XT4S 160 TMA 50A FF
Each
PHP42,608.76(exc. VAT)
ABB S800U MCB, 2P, 70A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-490
  • Mfr. Part No. 2CCS862017R0707
Each
PHP19,124.81(exc. VAT)
ABB 3 Phase Distribution Board, 12 Way, 250 A
  • RS Stock No. 539-1581
  • Mfr. Part No. 1SKP812142C0059 EPB25-312 CUK
Each
PHP35,136.34(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 2P, 20A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-892
  • Mfr. Part No. A9K12220
Each
PHP1,138.62(exc. VAT)
Siemens SENTRON Adapter for use with Circuit breaker with contactor
  • RS Stock No. 211-3848
  • Mfr. Part No. 8US1261-5FP08
Each
PHP4,102.96(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 7A, 125V ac/dc
  • RS Stock No. 541-3316
  • Mfr. Part No. 0251007.HAT1L
Each (In a Pack of 10)
PHP49.896(exc. VAT)
ABB SU 200 M Circuit Breaker, 2P, 10A Curve C, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6392
  • Mfr. Part No. 2CDS272337R0104
Each
PHP6,592.35(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 500A, Fixed Mount
  • RS Stock No. 260-8253
  • Mfr. Part No. C63V36M500
Each
PHP412,832.73(exc. VAT)
WJ Furse Lightning Earth Inspection Pit W. 300mm x 300mm H. 158mm 5000kg
  • RS Stock No. 124-2510
  • Mfr. Part No. 7TCA083320R0011 PT205
Each
PHP2,879.20(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 20A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Each
PHP1,621.75(exc. VAT)
RS PRO F, T Fuse Kit
  • RS Stock No. 893-8537
Each
PHP6,742.00(exc. VAT)
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