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

248 of 999+
In Stock
Schneider Electric Acti9 A9F76 MCB, 4P, 63A, 440V AC, 250V DC, 6000 A Breaking Capacity
  • RS Stock No. 276-8726
  • Mfr. Part No. A9F76463
Each
PHP38,659.20(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 2P, 25A Curve C, 230V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-407
  • Mfr. Part No. 5SY8525-7
Each
PHP6,823.75(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Undervoltage Release for use with IZMX16..., IZMX40...
  • RS Stock No. 132-597
  • Mfr. Part No. 184119 IZMX-RA-1
Each
PHP7,200.26(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2N MCCB 4P 100A, Fixed Mount
  • RS Stock No. 236-7466
  • Mfr. Part No. 1SDA067735R1 XT2N 160 TMG 100A FF
Each
PHP54,584.58(exc. VAT)
Temporarily out of stock
ABB RCBO, 25A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5179
  • Mfr. Part No. 2CSR273101R1255
Each
PHP24,681.74(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 30A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-579
  • Mfr. Part No. 3VA5130-5ED21-1AA0
Each
PHP25,427.80(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 35A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 246-145
  • Mfr. Part No. 132786 FAZ-B35/3-RT
Each
PHP13,562.52(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Undervoltage Release for use with INX16..., INX40..., IZMX16..., IZMX40...
  • RS Stock No. 132-519
  • Mfr. Part No. 184108 IZMX-UVR24DC-1
Each
PHP24,404.60(exc. VAT)
Temporarily out of stock
Eaton 2A Orange Fast Acting Car Fuse, 60 V dc, 125V ac With Indicator
  • RS Stock No. 848-3854
  • Mfr. Part No. GMT-2A
Each
PHP232.14(exc. VAT)
In Stock
ETI 4A DI Diazed Fuse, E16 Thread Size, gG - gL, 500V ac
  • RS Stock No. 417-824
  • Mfr. Part No. 2311402
Each (In a Pack of 5)
PHP87.796(exc. VAT)
Temporarily out of stock
Better World
Siemens 3VA911 RCD, 160A, 3 Pole, Type A
  • RS Stock No. 210-9286
  • Mfr. Part No. 3VA9113-0RS20
Each
PHP82,638.54(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 70 kA
  • RS Stock No. 209-6875
  • Mfr. Part No. 3VA1216-6EF32-0AA0
Each
PHP61,915.31(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7797
  • Mfr. Part No. C16N32D100
Each
PHP80,869.11(exc. VAT)
In Stock
Eaton Z-SV for use with FAZ-NA Miniature Circuit Breaker, FAZ-RT Miniature Circuit Breaker
  • RS Stock No. 847-3709
  • Mfr. Part No. 104904 ZV-BS-UL
Each
PHP209.65(exc. VAT)
In Stock
Schurter SMD Non Resettable Fuse 1A, 250 V ac, 125V dc
  • RS Stock No. 703-2742
  • Mfr. Part No. 3404.2416.22
Each (In a Bag of 10)
PHP79.24(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB, 4P, 4A Curve K, 70 KA Breaking Capacity
  • RS Stock No. 214-746
  • Mfr. Part No. A9F95404
Each
PHP64,151.44(exc. VAT)
Temporarily out of stock
50A NH Fuse, 1.9 x 1 x 2.13in, 600V ac
  • RS Stock No. 261-988
  • Mfr. Part No. TCF50RN
1 Pack of 12
PHP90,481.79(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3708
  • Mfr. Part No. 2CSR245441R1164/471033
Each
PHP12,528.78(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3550
  • Mfr. Part No. 3VA2010-6HM32-0AA0
Each
PHP86,018.21(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric MCCB 16 → 160A
  • RS Stock No. 178-7877
  • Mfr. Part No. LV426920
Each
PHP1,691.41(exc. VAT)
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