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

33502 Products showing for Fuses & Circuit Breakers

215 of 999+
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 232-0208
  • Mfr. Part No. 1SDA066668R1 HTC XT3 2PCS
Each
PHP1,774.53(exc. VAT)
Eaton IZMX16B4-P08W-1 Electronic Circuit Breaker 800A , DIN Rail
  • RS Stock No. 127-525
  • Mfr. Part No. 183458 IZMX16B4-P08W-1
Each
PHP635,191.29(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Radial 2A, 125V ac/dc
  • RS Stock No. 878-3264
  • Mfr. Part No. 0273002.H
Each
PHP389.26(exc. VAT)
Fuse Holder Fuse Holder
  • RS Stock No. 263-110
  • Mfr. Part No. SD00-D
1 Pack of 3
PHP1,772.23(exc. VAT)
RS PRO 63A British Standard Fuse, F2, 415V ac
  • RS Stock No. 521-2999
Each (In a Pack of 5)
PHP722.89(exc. VAT)
Schneider Electric Vigi C120 RCD, 125A, 3 Pole, 1000mA
  • RS Stock No. 219-9020
  • Mfr. Part No. A9N18559
Each
PHP66,967.19(exc. VAT)
Siemens 160A Centred Tag Fuse, NH00, 690V ac
  • RS Stock No. 396-354
  • Mfr. Part No. 3NE8024-1
Each (In a Pack of 3)
PHP6,286.513(exc. VAT)
Eaton Eaton Moeller xEffect Busbar, 24V dc, 17.5mm Pitch
  • RS Stock No. 261-357
  • Mfr. Part No. PXS24BB00012 PXS24-BB/80A/12TE
Each
PHP375.12(exc. VAT)
ABB S800S MCB, 2P, 13A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-236
  • Mfr. Part No. 2CCS862001R0447
Each
PHP14,484.98(exc. VAT)
ABB System Pro M Compact SU200 MR Circuit Breaker, 2P, 15A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 201-189
  • Mfr. Part No. 2CDS272347R0457
Each
PHP26,563.62(exc. VAT)
Schneider Electric Acti9 Acti9 C120 MCB, 2P, 125A, Type A, 500V AC, 10000 mA Breaking Capacity
  • RS Stock No. 428-828
  • Mfr. Part No. A9N18557
Each
PHP113,454.48(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 20A Curve C, 12 → 440V AC, 220 → 250V DC, 6 kA Breaking Capacity
  • RS Stock No. 806-7357
  • Mfr. Part No. A9F44420
Each
PHP16,950.71(exc. VAT)
Siemens SENTRON Cover Frame for use with 3VA51
  • RS Stock No. 161-936
  • Mfr. Part No. 3VA9034-0SB10
Each
PHP2,961.76(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 40A, Fixed Mount
  • RS Stock No. 236-6618
  • Mfr. Part No. 1SDA068153R1 XT4N 160 Ekip LSI 40A FF
Each
PHP128,889.58(exc. VAT)
Better World
ABB, XT4H MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6799
  • Mfr. Part No. 1SDA068540R1 XT4H 250 Ekip I 250A FF
Each
PHP100,023.76(exc. VAT)
Siemens SENTRON 5SJ4106 MCB, 1P, 6A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 300-008
  • Mfr. Part No. 5SJ4106-8HG42
Each
PHP4,743.22(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 25A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-318
  • Mfr. Part No. 3VA5125-5ED21-1AA0
Each
PHP25,427.80(exc. VAT)
Better World
Schneider Electric Acti9 iTG40 RCD, 40A, 1 Pole, 300mA, Type A-SI, 400V ac
  • RS Stock No. 239-9996
  • Mfr. Part No. A9Y16640
Each
PHP30,725.86(exc. VAT)
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3702
  • Mfr. Part No. 2CSR245041R1204
Each
PHP8,379.38(exc. VAT)
Eaton xEffect FAZ MCB, 3P, 7A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-897
  • Mfr. Part No. 132776 FAZ-B7/3-RT
Each
PHP12,389.54(exc. VAT)
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