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

48621 Products showing for Fuses & Circuit Breakers

4 / 999+
Stocked by manufacturer
Eaton 10A Tag Fuse 36 x 257 mm 3.6kV
  • RS Stock No. 228-959
  • Mfr. Part No. 3.6WJON610
Subtotal (1 pack of 5 units)
MYR4,962.00
MYR4,962.00/pack
In Stock
Schurter 1A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 830-4212P
  • Mfr. Part No. 8020.5011.G
Subtotal 10 units (supplied in a bag)
MYR39.32
MYR3.932/unit
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 2-Pole, 15A, Type D, 415V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3513
  • Mfr. Part No. 102189 FAZ-D15/2-NA
Subtotal (1 unit)
MYR620.52
MYR620.52/unit
In Stock
Mersen 16A D01 Neozed Fuse, 400V ac
  • RS Stock No. 377-0257
  • Mfr. Part No. R223023 / D01GG40V16
Subtotal (1 pack of 5 units)
MYR41.23
MYR8.246/unit
In Stock
Schurter 2A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 830-4265
  • Mfr. Part No. 8020.5071.G
Subtotal (1 pack of 10 units)
MYR40.14
MYR4.014/unit
In Stock
Littelfuse 6.3A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4713
  • Mfr. Part No. 021506.3MXP
Subtotal (1 pack of 10 units)
MYR46.84
MYR4.684/unit
In Stock
Eaton 2A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
MYR108.53
MYR108.53/pack
In Stock
Phoenix Contact Thermomagnetic Device Circuit Breaker CB TM1 Thermal Circuit Breaker - 1-Pole, Snap-On, 2A Current
  • RS Stock No. 217-6359
  • Mfr. Part No. 2800837
Subtotal (1 unit)
MYR194.40
MYR194.40/unit
In Stock
Eaton 16A 36 x 11 mm Diazed Fuse, 400V ac
  • RS Stock No. 258-699
  • Mfr. Part No. 288939 Z-D01/SE-16
Subtotal (1 pack of 12 units)
MYR23.62
MYR23.62/pack
In Stock
Eaton 3A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-560
  • Mfr. Part No. TDC180-3A
Subtotal (1 pack of 10 units)
MYR36.35
MYR3.635/unit
In Stock
SIBA 3.15A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3311
  • Mfr. Part No. 70-007-65/3.15A
Subtotal (1 pack of 10 units)
MYR10.32
MYR1.032/unit
In Stock
Siemens 16A D01 Neozed Fuse, 400V ac
  • RS Stock No. 622-1067
  • Mfr. Part No. 5SE2316
Subtotal (1 pack of 10 units)
MYR151.78
MYR15.178/unit
Stocked by manufacturer
Eaton xEffect FAZ Miniature Circuit Breaker, 3-Pole, 30A, Type D, 415V ac AC, 60 V dc DC, 15 kA Breaking Capacity
  • RS Stock No. 240-597
  • Mfr. Part No. 102273 FAZ-D30/3-NA
Subtotal (1 unit)
MYR1,463.69
MYR1,463.69/unit
In Stock
Littelfuse 20A Yellow Car Fuse, 32V dc
  • RS Stock No. 787-4136
  • Mfr. Part No. 0287020.PXCN
Subtotal (1 pack of 10 units)
MYR15.71
MYR1.571/unit
Limited stock
Eaton 250A NH Fuse NH1 500V
  • RS Stock No. 703-8715
  • Mfr. Part No. 250NHG1B
Subtotal (1 unit)
MYR72.40
MYR72.40/unit
In Stock
Littelfuse 4A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-3748
  • Mfr. Part No. 0217004.MXP
Subtotal (1 pack of 10 units)
MYR14.37
MYR1.437/unit
Stocked by manufacturer
Schneider Electric, EasyPact, EZC400H Circuit Breaker 4-Pole 400A, Breaking Capacity 50 kA, Fixed
  • RS Stock No. 100-834
  • Mfr. Part No. EZC400H4350N
Subtotal (1 unit)
MYR8,189.53
MYR8,189.53/unit
In Stock
Eaton 6A Centred Tag Fuse NH000 500V ac
  • RS Stock No. 703-8611
  • Mfr. Part No. 6NHG000B
Subtotal (1 unit)
MYR44.72
MYR44.72/unit
In Stock
Littelfuse Non-Resettable Fuse, Axial 250 mA, 125 V ac/dc
  • RS Stock No. 541-3243
  • Mfr. Part No. 0251.250HAT1L
Subtotal (1 pack of 10 units)
MYR69.75
MYR6.975/unit
In Stock
Littelfuse Non-Resettable Fuse, Radial 50 mA, 125 V ac/dc
  • RS Stock No. 878-3233
  • Mfr. Part No. 0273.050H
Subtotal (1 unit)
MYR38.24
MYR38.24/unit
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