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

298 of 999+
Temporarily out of stock
ABB, Tmax MCCB
  • RS Stock No. 237-5973
  • Mfr. Part No. 1SDA054559R1
Each
PHP38,359.08(exc. VAT)
Temporarily out of stock
Bourns SMD Non Resettable Fuse 30A, 250V ac
  • RS Stock No. 187-8667
  • Mfr. Part No. SF-3812F3000T-2
Each (On a Reel of 2500)
PHP149.945(exc. VAT)
Temporarily out of stock
Eaton RCCB, 25A, 2 Pole, 100mA, Type AC, 230V ac
  • RS Stock No. 227-0693
  • Mfr. Part No. 264267 PFGM-25/2/01
Each
PHP17,890.17(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 100mA, 250V ac
  • RS Stock No. 895-1653
  • Mfr. Part No. 37201000411
Each (In a Pack of 10)
PHP50.292(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 800A, Breaking Capacity 75 kA
  • RS Stock No. 340-922
  • Mfr. Part No. C080B4WM
Each
PHP385,102.16(exc. VAT)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 181-4381
  • Mfr. Part No. DS-ARC1 M C6 A30
Each
PHP22,980.21(exc. VAT)
Currently unavailable
RS PRO 25A NH Fuse, NH000, 415V ac
  • RS Stock No. 221-3671
Each (In a Pack of 3)
PHP952.773(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 3P, 5A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-681
  • Mfr. Part No. 2CDS273347R0357
Each
PHP40,328.17(exc. VAT)
Temporarily out of stock
Hager ARC MCB, 32A, 3 Breaking Capacity
  • RS Stock No. 602-200
  • Mfr. Part No. ARC732F
Each
PHP18,168.90(exc. VAT)
Last RS stock
RS PRO SMD Non Resettable Fuse 7A, 125V
  • RS Stock No. 182-3972
Each (In a Pack of 20)
PHP27.584(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 16A Curve D, 500V AC, 15 kA Breaking Capacity
  • RS Stock No. 444-436
  • Mfr. Part No. A9C66416
Each
PHP140,729.80(exc. VAT)
Temporarily out of stock
Siemens 200A Centred Tag Fuse, NH2, 690V
  • RS Stock No. 210-6929
  • Mfr. Part No. 3NA7240-6
Each (In a Pack of 3)
PHP4,882.253(exc. VAT)
In Stock
Siemens 1 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 202-7073
  • Mfr. Part No. 5SD7464-1
Each
PHP29,444.75(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 230-651
  • Mfr. Part No. 112740 NZMC1-A80-SVE
Each
PHP37,828.42(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 500mA Curve K, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-975
  • Mfr. Part No. 2CDS271061R0157
Each
PHP10,287.61(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 80A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-388
  • Mfr. Part No. 113373 NZMH2-4-A80-SVE
Each
PHP67,812.58(exc. VAT)
Temporarily out of stock
xEnergy Basic Distribution Board Enclosure
  • RS Stock No. 252-401
  • Mfr. Part No. 195325 BPM-O-1100/11-P-EP
Each
PHP76,463.27(exc. VAT)
Temporarily out of stock
Eaton Busbar Support, xEnergy Series
  • RS Stock No. 247-673
  • Mfr. Part No. 133099 XBBB135
Each
PHP2,177.33(exc. VAT)
Temporarily out of stock
Hager BDH Series RCCB, 40A, 1P+N Pole, 30mA, Type A-HI
  • RS Stock No. 597-972
  • Mfr. Part No. BDH240F
Each
PHP20,645.90(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 2P Poles, 100mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6894
  • Mfr. Part No. 2CSR255180R2105 DS201 B10 A100
Each
PHP18,359.61(exc. VAT)
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