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

20 of 999+
Temporarily out of stock
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)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 232-0216
  • Mfr. Part No. 1SDA066807R1 XT1B 160 TMD 100A FF
Each
PHP18,828.69(exc. VAT)
In Stock
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 20A
  • RS Stock No. 221-0898
  • Mfr. Part No. BGL36020LU
Each
PHP36,184.88(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 214-774
  • Mfr. Part No. C12H34V160L
Each
PHP152,741.55(exc. VAT)
Temporarily out of stock
Schneider Electric Multi9 M9F1 MCB, 4P, 32A Curve C, 440V AC, 250V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-009
  • Mfr. Part No. M9F11432
Each
PHP18,043.90(exc. VAT)
Temporarily out of stock
Eaton MCB, 1P, 2A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 248-578
  • Mfr. Part No. 101252 PLI-C2/1
Each
PHP2,710.72(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 320A, Breaking Capacity 55 kA
  • RS Stock No. 209-7033
  • Mfr. Part No. 3VA1463-5EF32-0AA0
Each
PHP174,168.74(exc. VAT)
Temporarily out of stock
Eaton BBA0 Adapter for use with Cu-Busbars
  • RS Stock No. 230-4441
  • Mfr. Part No. 101481 BBA0-25/2TS
Each (In a Pack of 4)
PHP3,057.293(exc. VAT)
Temporarily out of stock
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)
Temporarily out of stock
Eaton 4A Cartridge Fuse, 440 x 41.3mm
  • RS Stock No. 228-882
  • Mfr. Part No. 38CAV4E
1 Pack of 3
PHP58,123.71(exc. VAT)
In Stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 232-0083
  • Mfr. Part No. 1SDA054117R1 T4N320 FF PR221-LS 320A
Each
PHP56,181.81(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 100A, Breaking Capacity 90 kA, Fixed Mount
  • RS Stock No. 254-6300
  • Mfr. Part No. C10N3TM100
Each
PHP53,309.63(exc. VAT)
Temporarily out of stock
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)
Temporarily out of stock
ABB S803N MCB, 3P, 25A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-421
  • Mfr. Part No. 2CCS893001R0251
Each
PHP17,505.11(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 600A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9795
  • Mfr. Part No. LV563306
Each
PHP109,676.69(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 237-6212
  • Mfr. Part No. 1SDA067015R1 XT2N 160 TMA 50A FF
Each
PHP17,697.72(exc. VAT)
In Stock
ABB FH200 RCCB, 40A, 2 Pole, 30mA, Type AC, 230V
  • RS Stock No. 186-3456
  • Mfr. Part No. 2CSF202002R1400
Each
PHP3,160.55(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV3P 3 Pole 690V ac Voltage Rating DIN Rail Mount, 80A Current Rating
  • RS Stock No. 188-4740
  • Mfr. Part No. GV3P80
Each
PHP18,680.92(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 8 Way, 125 A
  • RS Stock No. 244-933
  • Mfr. Part No. SE125A8
Each
PHP11,455.09(exc. VAT)
Temporarily out of stock
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)
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