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

34963 Products showing for Fuses & Circuit Breakers

107 of 999+
Schneider Electric, PowerPact Circuit Breaker Accessory 630A
  • RS Stock No. 335-273
  • Mfr. Part No. NSNL630
Each
$477.62(exc. GST)
Eaton 70A Glass Melamine Cartridge Fuse, 0.56 x 0.87in
  • RS Stock No. 261-693
  • Mfr. Part No. TPS-70
1 Pack of 10
$835.84(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7706
  • Mfr. Part No. 2CDS252001R0064 S202-C6
Each
$123.08(exc. GST)
Clipsal Electrical Surge Protector, 40kA, 240V ac, DIN Rail Mount
  • RS Stock No. 282-3005
  • Mfr. Part No. MX9SP140
Each
$162.67(exc. GST)
Schneider Electric TeSys Earthing Block for use with V02,V1,V2,V0,V01
  • RS Stock No. 279-6191
  • Mfr. Part No. VZ14
Each
$73.53(exc. GST)
Eaton 10A Red Blade Car Fuse, 32V dc
  • RS Stock No. 852-7326
  • Mfr. Part No. ATM-10
Each
$3.56(exc. GST)
Hager HMC MCB, 3P, 100A, 400V AC, 15 Breaking Capacity
  • RS Stock No. 602-114
  • Mfr. Part No. HMC390
Each
$1,209.02(exc. GST)
Hager BF3 RCCB, 40A, 3 Pole, 300mA, Type AC, 230 → 400V ac
  • RS Stock No. 597-978
  • Mfr. Part No. BF343
Each
$624.55(exc. GST)
Schneider Electric, ComPacT New generation MCCB 4P 250A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-341
  • Mfr. Part No. C25B47E250
Each
$15,624.51(exc. GST)
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 346-737
  • Mfr. Part No. C100L350FM
Each
$33,468.45(exc. GST)
Siemens SIRIUS 3 Phase Busbar
  • RS Stock No. 755-2955
  • Mfr. Part No. 3RV2917-4A
Each
$25.38(exc. GST)
Hager HMB MCB, 3P, 80A, 400V AC, 15 Breaking Capacity
  • RS Stock No. 602-105
  • Mfr. Part No. HMB380
Each
$1,394.39(exc. GST)
Schneider Electric Enclosure
  • RS Stock No. 418-0122
  • Mfr. Part No. 14599
Each
$215.26(exc. GST)
Mersen 8A Glass Melamine Cartridge Fuse, 10 x 38mm
  • RS Stock No. 136-0587
  • Mfr. Part No. HP6M8
Each
$27.07(exc. GST)
Eaton 2A Slow-Blow Cartridge Fuse, 22.2 x 58mm
  • RS Stock No. 228-925
  • Mfr. Part No. C22M2
1 Pack of 10
$112.34(exc. GST)
RS PRO 4A Pink Blade Car Fuse, 32V dc
  • RS Stock No. 563-716
Each (In a Pack of 10)
$1.813(exc. GST)
Schurter CBE Thermal Circuit Breaker - TA45 2 Pole 240V ac Voltage Rating Snap-In, 15A Current Rating
  • RS Stock No. 269-3822
  • Mfr. Part No. 4430.0031
Each
$61.63(exc. GST)
32A Neutral Link x 9mm
  • RS Stock No. 262-976
  • Mfr. Part No. 32CML
1 Pack of 10
$108.33(exc. GST)
Schneider Electric Distribution Block for use with Compact, Kaedra, Pragma, Prisma-G, Prisma-P, Prisma-Pack, Prisma-PH,
  • RS Stock No. 822-7953
  • Mfr. Part No. LGY412548
Each
$83.82(exc. GST)
Residual current circuit-breaker, 40A
  • RS Stock No. 611-296
  • Mfr. Part No. PFIM-63/4/003-XG/B
Each
$3,098.29(exc. GST)
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