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

250 of 999+
Temporarily out of stock
ABB SU200 M MCB, 4P, 6A, Type Z, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 203-658
  • Mfr. Part No. 2CDS274337R0378
Each
PHP44,169.07(exc. VAT)
In Stock
Eaton 100A Tag Fuse, NH000, 500V ac
  • RS Stock No. 703-8651
  • Mfr. Part No. 100NHG000B
Each
PHP563.21(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 3P, 4A, Type A, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-314
  • Mfr. Part No. 5SY4304-5
Each
PHP13,647.51(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 3A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-013
  • Mfr. Part No. 2CDS272061R0317
Each
PHP23,528.98(exc. VAT)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 1 Way, 100 A
  • RS Stock No. 117-463
  • Mfr. Part No. FP 1101
Each
PHP9,209.79(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 320A, Fixed Mount
  • RS Stock No. 250-4101
  • Mfr. Part No. 1SDA054368R1
Each
PHP247,891.11(exc. VAT)
Temporarily out of stock
ABB 40A Tag Fuse, NH1, 500V
  • RS Stock No. 250-4434
  • Mfr. Part No. 1SCA022697R8200
1 Box of 3
PHP6,298.80(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX100/160/250 MCCB 4P 63A, Fixed Mount
  • RS Stock No. 288-7179
  • Mfr. Part No. C106TM063
Each
PHP11,726.02(exc. VAT)
In Stock
ABB RCCB, 40A, 4 Pole
  • RS Stock No. 189-5642
  • Mfr. Part No. 2CSF204023R1400 F204 AC-40/0,03-L
Each
PHP8,241.84(exc. VAT)
Temporarily out of stock
Siemens 5SM2622 RCCB, 40A, 2 Pole, 300mA, Type AC, 230V ac
  • RS Stock No. 231-8302
  • Mfr. Part No. 5SM2622-0
Each
PHP8,936.66(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 63A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7687
  • Mfr. Part No. 2CDS251001R0634 S201-C63
Each
PHP1,505.78(exc. VAT)
In Stock
Eaton 6.3A PCB Mount 5 x 20mm Cartridge Fuse Block, 250V ac
  • RS Stock No. 765-2973
  • Mfr. Part No. HTC-15M
Each (In a Pack of 5)
PHP123.898(exc. VAT)
Temporarily out of stock
Schneider Electric Canalis Busbar, 230-400V
  • RS Stock No. 211-947
  • Mfr. Part No. KBB40EDA20W
1 Pack of 6
PHP35,970.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 178-8163
  • Mfr. Part No. LV426268
Each
PHP39,273.81(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 15A, 24V
  • RS Stock No. 252-2148
Each (On a Tape of 4000)
PHP10.581(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 63A Curve B, 500V AC, 72V DC, 240 V Breaking Capacity
  • RS Stock No. 458-795
  • Mfr. Part No. A9F93163
Each
PHP21,149.46(exc. VAT)
Temporarily out of stock
Eaton xEnergy Light Distribution Board
  • RS Stock No. 231-082
  • Mfr. Part No. 116528 XLSPP208
Each
PHP10,410.15(exc. VAT)
In Stock
Bourns Thermal Fuse +82°C 80 A, 28V
  • RS Stock No. 258-6365
  • Mfr. Part No. HC82AY-1
Each (In a Pack of 10)
PHP66.23(exc. VAT)
Temporarily out of stock
Schneider Electric 4 Phase Surge Arrester, 75kA, 2500V (Volts), Clip-On Mount
  • RS Stock No. 438-847
  • Mfr. Part No. M9L47600
Each (In a Pack of 36)
PHP58,774.771(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3+N, 13A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 202-964
  • Mfr. Part No. 2CDS273103R0131
Each
PHP46,388.18(exc. VAT)
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