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

21 of 999+
Phoenix Contact 1 Phase Surge Protector, 100kA, 125V dc, DIN Rail Mount
  • RS Stock No. 207-2711
  • Mfr. Part No. 2905465
Each
PHP27,442.35(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 2P, 40A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-894
  • Mfr. Part No. A9K12240
Each
PHP1,138.62(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 34 kA, Fixed Mount
  • RS Stock No. 124-940
  • Mfr. Part No. 179326 N4-4-1000-S1-PV-NA
Each
PHP491,422.37(exc. VAT)
Socomec 10A Tag Fuse, 14 X 51mm, 690V, 51mm
  • RS Stock No. 252-5311
  • Mfr. Part No. 170N1410
Each (In a Pack of 10)
PHP578.835(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 80A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9734
  • Mfr. Part No. LV510336
Each
PHP31,750.50(exc. VAT)
Better World
Schneider Electric iDPN RCD, 32A, 1+N Pole, 300mA, Type B, 220 → 240V ac
  • RS Stock No. 790-9487
  • Mfr. Part No. A9D69632
Each
PHP23,480.85(exc. VAT)
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-526
Each (In a Pack of 10)
PHP13.547(exc. VAT)
ABB S202L MCB, 2P, 50A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-699
  • Mfr. Part No. 2CDS242701R0504
Each
PHP9,783.80(exc. VAT)
ABB F200 RCCB, 40A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 537-7361
  • Mfr. Part No. 2CSF202001R1400 F202 AC-40/0,03
Each
PHP12,266.84(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 115A Current Rating
  • RS Stock No. 175-1462
  • Mfr. Part No. GV4LE115B
Each
PHP20,781.60(exc. VAT)
ABB S800C MCB, 3P, 125A Curve B, 440V AC, 500V DC, 20 kA Breaking Capacity
  • RS Stock No. 141-150
  • Mfr. Part No. 2CCS883001R0255
Each
PHP12,561.96(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 232-0263
  • Mfr. Part No. 1SDA067560R1 XT2S 160 TMA 160A FF
Each
PHP30,975.08(exc. VAT)
Schneider Electric Acti9 A9F MCB, 3P, 50A Curve C, 440V AC, 180V DC, 70 kA Breaking Capacity
  • RS Stock No. 288-7100
  • Mfr. Part No. A9F94350
Each
PHP27,552.07(exc. VAT)
ABB S800U MCB, 1P, 30A Curve K, 240V AC, 30 kA Breaking Capacity
  • RS Stock No. 140-446
  • Mfr. Part No. 2CCS881017R0527
Each
PHP7,853.39(exc. VAT)
ABB Tmax XT Motor Operator for use with MCCB
  • RS Stock No. 232-0190
  • Mfr. Part No. 1SDA066466R1 MOE XT2-XT4 220...250VAC/D
Each
PHP58,512.63(exc. VAT)
Better World
Schneider Electric Acti 9 3 Phase Distribution Board, 18 Way, 250 A
  • RS Stock No. 125-1414
  • Mfr. Part No. SEA9BN18PEV
Each
PHP35,861.72(exc. VAT)
Schneider Electric Resi9 R9PF MCB, 1P, 16A, 230V AC, 3000 A Breaking Capacity
  • RS Stock No. 276-8970
  • Mfr. Part No. R9PFD616
Each
PHP2,486.22(exc. VAT)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 40A Curve C, 500V DC, 20 kA Breaking Capacity
  • RS Stock No. 776-3225
  • Mfr. Part No. A9N61537
Each
PHP7,734.19(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS Stock No. 232-0084
  • Mfr. Part No. 1SDA054317R1 T5N400 FF PR221-LS 400A
Each
PHP107,134.95(exc. VAT)
Better World
Schneider Electric, Compact MCCB 3P 25A, Breaking Capacity 70 kA, Clip-On
  • RS Stock No. 178-7799
  • Mfr. Part No. LV426551
Each
PHP33,891.24(exc. VAT)
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