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

49 of 999+
Eaton xEffect FAZ MCB, 2P, 15A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 244-038
  • Mfr. Part No. 102209 FAZ-C15/2-RT
Each
PHP12,445.33(exc. VAT)
Hager NFT MCB, 1+N, 3A, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4738
  • Mfr. Part No. NFT703
Each
PHP8,084.62(exc. VAT)
Schneider Electric PowerPact Circuit Breaker - PowerPacT 3 Pole 525V ac Voltage Rating Clip-On, 30A Current Rating
  • RS Stock No. 205-174
  • Mfr. Part No. BDF36030
Each
PHP58,178.78(exc. VAT)
Schneider Electric Acti9 A9F MCB, 3P, 16A Curve B, 440V AC, 180V DC, 25 kA Breaking Capacity
  • RS Stock No. 288-7087
  • Mfr. Part No. A9F93316
Each
PHP26,091.24(exc. VAT)
ABB S800S MCB, 2P, 16A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-673
  • Mfr. Part No. 2CCS862001R0165
Each
PHP13,065.61(exc. VAT)
Schneider Electric Flexible Busbar Trunking, 3m, 630A, KSC63 Series
  • RS Stock No. 207-367
  • Mfr. Part No. KSC630ED43010
Each
PHP235,684.24(exc. VAT)
Schneider Electric Acti9 A9N1 MCB, 1P, 100A Curve D, 230-400V AC, 144V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 212-101
  • Mfr. Part No. A9N18491
1 Pack of 12
PHP91,917.44(exc. VAT)
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-137
  • Mfr. Part No. KV 9109
Each
PHP4,458.81(exc. VAT)
Eaton xEffect FAZ MCB, 1P, 1.5A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 246-128
  • Mfr. Part No. 132732 FAZ-B1,5/1-RT
Each
PHP2,558.55(exc. VAT)
Better World
Schneider Electric Linergy Terminal Block for use with GV1G
  • RS Stock No. 400-1984
  • Mfr. Part No. GV1G09
Each
PHP874.85(exc. VAT)
Better World
Schneider Electric, PowerPact MCCB 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 219-8425
  • Mfr. Part No. NLGF36600U31XTW
Each
PHP318,894.18(exc. VAT)
Eaton xComfort KLV 1 Phase Distribution Board Enclosure
  • RS Stock No. 124-767
  • Mfr. Part No. 178799 KLV-12UPP-SF
Each
PHP8,287.77(exc. VAT)
ABB System Pro M Compact S300P MCB, 3+N, 200mA Curve K, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 200-333
  • Mfr. Part No. 2CDS383103R0087
Each
PHP49,453.99(exc. VAT)
Schneider Electric EasyPact CVS100...250 Thermal Circuit Breaker - EasyPact CVS 4 Pole 440V ac Voltage Rating Fixed,
  • RS Stock No. 124-528
  • Mfr. Part No. LV510310
Each
PHP25,101.16(exc. VAT)
ABB Tmax T Motor Operator for use with MCCB
  • RS Stock No. 232-0112
  • Mfr. Part No. 1SDA054894R1 MOE 24VDC T4-5
Each
PHP99,994.75(exc. VAT)
Schneider Electric 12 Way Split Load Metal Consumer Unit, 63A, IP2X, IP3X R9H
  • RS Stock No. 335-285
  • Mfr. Part No. R9HMSR6R6
Each
PHP35,563.47(exc. VAT)
ABB S303 MCB, 3P, 50A Curve B, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 201-355
  • Mfr. Part No. 2CDS383001R0505
Each
PHP35,721.45(exc. VAT)
ABB System Pro M Compact S200 MCB, 3P, 6A, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-720
  • Mfr. Part No. 2CDS253001R0378
Each
PHP22,956.93(exc. VAT)
ABB EV1122 Busbar
  • RS Stock No. 202-036
  • Mfr. Part No. 1STQ001017A0000
Each
PHP49,042.01(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 1.25kA, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 654-142
  • Mfr. Part No. C125N350FM
Each
PHP412,690.44(exc. VAT)
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