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

5 of 999+
Eaton 1 Phase Surge Protector, 110 → 230 V dc, 12 → 110V ac, DIN Rail Mount
  • RS Stock No. 847-3686
  • Mfr. Part No. 102037 FAZ-XAA-NA12-110VAC
Each
PHP2,062.07(exc. VAT)
ABB S802C MCB, 2P, 32A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-955
  • Mfr. Part No. 2CCS882001R0325
Each
PHP7,421.62(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 125A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9755
  • Mfr. Part No. LV516302
Each
PHP35,187.07(exc. VAT)
Schneider Electric Multi9 M9F1 MCB, 2P, 25A Curve D, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-079
  • Mfr. Part No. M9F12225
Each
PHP11,662.58(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)
Better World
Schneider Electric Linergy Busbar, 690V, 45mm Pitch
  • RS Stock No. 400-2000
  • Mfr. Part No. GV2G445
Each
PHP2,631.11(exc. VAT)
Better World
Schneider Electric, Masterpact MCCB 3P 4kA, Fixed Mount
  • RS Stock No. 248-3790
  • Mfr. Part No. LV848092
Each
PHP1,739,518.33(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 2P, 16A Curve B, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-880
  • Mfr. Part No. A9K11216
Each
PHP936.67(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 40A, Breaking Capacity 25kA
  • RS Stock No. 260-9723
  • Mfr. Part No. LV510313
Each
PHP34,429.00(exc. VAT)
Sato Parts Panel Mount Fuse Holder for 5 x 20 mm, 6.3 x 32 mm Fuse
  • RS Stock No. 371-8552
  • Mfr. Part No. F-7155
Each (In a Pack of 5)
PHP305.542(exc. VAT)
ABB System Pro M Compact S200 MCB, 3P, 50A, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-722
  • Mfr. Part No. 2CDS253001R0578
Each
PHP28,696.79(exc. VAT)
Siemens SENTRON 5SJ4120 MCB, 1P, 20A Curve D, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-732
  • Mfr. Part No. 5SJ4120-8HG40
Each
PHP3,896.90(exc. VAT)
Better World
Schneider Electric Busbar
  • RS Stock No. 212-0203
  • Mfr. Part No. LA7F403
Each
PHP6,594.31(exc. VAT)
Siemens SENTRON 5SY8 MCB, 2P, 10A Curve D, 230V AC, 60V DC, 40 kA Breaking Capacity
  • RS Stock No. 610-276
  • Mfr. Part No. 5SY8510-8
Each
PHP7,410.74(exc. VAT)
Schneider Electric, ComPacT New Generation MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 207-154
  • Mfr. Part No. C12F44V160L
Each
PHP194,526.86(exc. VAT)
ABB S201 Circuit Breaker, 1+N, 16A Curve C, 230V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 287-6357
  • Mfr. Part No. 2CDS251103R0164
Each (In a Pack of 5)
PHP2,822.994(exc. VAT)
ABB MCCB Molded Case Circuit Breaker 3P 500A, Fixed Mount
  • RS Stock No. 250-4187
  • Mfr. Part No. 1SDA054465R1
Each
PHP277,060.53(exc. VAT)
Eaton 63A NH Fuse, NH00, 500V
  • RS Stock No. 181-8785
  • Mfr. Part No. 63NHG00B
Each
PHP455.42(exc. VAT)
Schneider Electric Acti9 1 Phase Distribution Board, 10 Way, 125 A
  • RS Stock No. 339-679
  • Mfr. Part No. SEA9APN10
Each
PHP13,260.81(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 2A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3436
  • Mfr. Part No. A9F74102
Each
PHP4,901.45(exc. VAT)
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