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

254 of 999+
In Stock
ABB System Pro M Compact S200 M UC MCB, 1P, 500mA, Type Z, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-879
  • Mfr. Part No. 2CDS271061R0158
Each
PHP7,968.25(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 125mA, 125V ac/dc
  • RS Stock No. 738-3084
  • Mfr. Part No. 0259.125T
Each
PHP243.50(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 1kA, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4791
  • Mfr. Part No. 3VA2510-7HL32-0JB0
Each
PHP463,007.03(exc. VAT)
In Stock
RS PRO SMD Non-Resettable Surface Mount Fuse 30A, 48V
  • RS Stock No. 252-2153
Each (In a Pack of 50)
PHP21.162(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 90A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 147-602
  • Mfr. Part No. 3VA5190-4ED31-1AA0
Each
PHP38,218.29(exc. VAT)
In Stock
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 232-0209
  • Mfr. Part No. 1SDA066670R1 HTC XT4 TER 2pcs
Each
PHP1,864.82(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 4A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-776
  • Mfr. Part No. 2CDS273061R0338
Each
PHP45,451.33(exc. VAT)
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 300mA
  • RS Stock No. 200-6019
  • Mfr. Part No. 5SV3646-4
Each
PHP68,661.06(exc. VAT)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA9603-0KP00
  • RS Stock No. 269-7219
  • Mfr. Part No. 3VA9603-0JJ25
Each (In a Pack of 3)
PHP6,546.807(exc. VAT)
In Stock
Mersen 160A German Standard Fuse, NH00, 690V ac, 77mm
  • RS Stock No. 287-0867
  • Mfr. Part No. G330240
Each
PHP7,709.10(exc. VAT)
In Stock
ABB S203L MCB, 3P, 32A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-702
  • Mfr. Part No. 2CDS243701R0321
Each
PHP6,364.40(exc. VAT)
Unavailable
Littelfuse 1.5A Resettable Fuse, 16V dc
  • RS Stock No. 867-5283P
  • Mfr. Part No. MINISMDC150F/16-2
Each (Supplied on a Reel)
PHP23.066(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4823
  • Mfr. Part No. 3VA2563-7HL42-0AA0
Each
PHP313,408.01(exc. VAT)
In Stock
Schneider Electric Acti 9 Bell Transformer for use with Canalis
  • RS Stock No. 247-1920
  • Mfr. Part No. A9A15216
Each
PHP6,167.80(exc. VAT)
In Stock
Bourns SMD Non Resettable Fuse 3.5A, 125V ac
  • RS Stock No. 191-4198
  • Mfr. Part No. SF-2410HI350T-2
Each (On a Reel of 1000)
PHP40.953(exc. VAT)
In Stock
Eaton 235A British Standard Fuse, 660 V ac, 350V dc, 81.7mm
  • RS Stock No. 414-976
  • Mfr. Part No. GSGB235
Each
PHP22,170.53(exc. VAT)
Last RS stock
Schurter PC Board Non Resettable Fuse, Radial 4A, 250V ac
  • RS Stock No. 284-5164
  • Mfr. Part No. 0034.6020
Each (In a Pack of 10)
PHP31.133(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 60A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-706
  • Mfr. Part No. 3VA5160-5EF41-0AA0
Each
PHP50,916.25(exc. VAT)
In Stock
Better World
Siemens 5sV3 RCCB, 25A, 2 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 211-9658
  • Mfr. Part No. 5SV3412-6
Each
PHP11,766.93(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 32A, Fixed Mount
  • RS Stock No. 254-6276
  • Mfr. Part No. C10B3TM032
Each
PHP38,029.38(exc. VAT)
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