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

46578 Products showing for Fuses & Circuit Breakers

152 / 999+
Better World
Schneider Electric PowerPact Distribution Board, 18 Way, 800 A
  • RS Stock No. 247-2145
  • Mfr. Part No. MGPCM18R
Each
MYR9,848.83
SIBA 2A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 783-3309
  • Mfr. Part No. 70-007-65/2A
Each (In a Pack of 10)
MYR1.832
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 200A, Fixed Mount
  • RS Stock No. 232-0279
  • Mfr. Part No. 1SDA068220R1 XT3S 250 TMD 200A FF
Each
MYR3,644.06
ABB, XT2N MCCB 4P 100A, Fixed Mount
  • RS Stock No. 237-6222
  • Mfr. Part No. 1SDA067039R1 XT2N 160 TMA 100A FF
Each
MYR2,630.96
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3338
  • Mfr. Part No. A9DV3632
Each
MYR1,555.90
Eaton xEffect - FRCmM RCCB, 40A, 2 Pole, 100mA, 240V ac
  • RS Stock No. 123-606
  • Mfr. Part No. 170438 FRCMM-40/2/01-S/A
Each
MYR1,576.89
Schurter PC Board Non Resettable Fuse, Radial 50mA, 250V ac
  • RS Stock No. 284-5192
  • Mfr. Part No. 0034.6602
Each (In a Pack of 10)
MYR4.784
ABB F200 RCCB, 16A, 2 Pole, 10mA, Type AC, 230V ac
  • RS Stock No. 231-9897
  • Mfr. Part No. 2CSF202001R0160 F202 AC-16/0.01
Each
MYR978.03
RS PRO 500mA T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6063
Each (In a Pack of 10)
MYR2.859
WJ Furse Copper Alloy Earth Clamp Nominal Rod dia. 16mm
  • RS Stock No. 153-2963
  • Mfr. Part No. 7TCA083220R0010 CR515
Each (In a Pack of 10)
MYR49.21
Eaton IKA Standard Distribution Board Distribution Board
  • RS Stock No. 125-785
  • Mfr. Part No. 174204 IKA-1/6-OT
Each
MYR208.04
Littelfuse 500A Inline Fuse Holder for BF2 Fuse, 1P, 32V dc
  • RS Stock No. 548-9199
  • Mfr. Part No. 02980900TXN
Each
MYR88.77
RS PRO PC Board Non Resettable Fuse, Radial 5A, 250V
  • RS Stock No. 767-5165
Each (In a Pack of 10)
MYR1.408
Mersen 4A FA Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 188-6669
  • Mfr. Part No. Q084010
Each (In a Pack of 10)
MYR20.037
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 32A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9877
  • Mfr. Part No. 3VA1132-3ED22-0AA0
Each
MYR1,427.07
ABB Tmax T Shunt Opening Release for use with MCCB
  • RS Stock No. 232-0107
  • Mfr. Part No. 1SDA054871R1 SOR-C 48VAC/DC T4-6
Each
MYR741.47
Legrand 6A F Ceramic Cartridge Fuse, 8.5 x 32mm
  • RS Stock No. 293-8187
  • Mfr. Part No. 0 123 06
Each (In a Pack of 10)
MYR10.299
Schurter PC Board Non Resettable Fuse, Radial 6.3A, 250V ac
  • RS Stock No. 173-9811
  • Mfr. Part No. 0034.6623
Each (In a Bag of 100)
MYR2.194
Eaton Fuse Holder Assembly Kit
  • RS Stock No. 258-914
  • Mfr. Part No. 288915 Z-D02/PE-35
1 Pack of 12
MYR17.68
Mersen 5A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4351
  • Mfr. Part No. ATM5
Each
MYR97.66
1
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