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

49488 Products showing for Fuses & Circuit Breakers

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In Stock
Eaton 12A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8504
  • Mfr. Part No. C10M12
Subtotal (1 pack of 10 units)
TWD529.00(exc. GST)
TWD52.90/unit
In Stock
RS Better World
Siemens SENTRON 5SY Miniature Circuit Breaker, 1-Pole, 2A, Type A, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Subtotal (1 unit)
TWD2,442.00(exc. GST)
TWD2,442.00/unit
In Stock
ABB 16 Configured for Split Load Steel Consumer Unit, 100A, BS EN 61009, BS EN 60439-3, BS EN 60898 IP30 Housemaster
  • RS Stock No. 453-996
  • Mfr. Part No. 1SKB118142C6001
Subtotal (1 unit)
TWD11,888.00(exc. GST)
TWD11,888.00/unit
In Stock
RS Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 1A, Type A, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 202-7133
  • Mfr. Part No. 5SY4101-5
Subtotal (1 unit)
TWD2,189.00(exc. GST)
TWD2,189.00/unit
In Stock
RS Better World
Schneider Electric Earth Bar L. 200 mm x W. 13mm x H. 12 mm
  • RS Stock No. 276-8808
  • Mfr. Part No. LVS04202
Subtotal (1 unit)
TWD3,902.00(exc. GST)
TWD3,902.00/unit
In Stock
SIBA 315mA FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 736-1412
  • Mfr. Part No. 70-172-40/0.315A
Subtotal (1 unit)
TWD227.00(exc. GST)
TWD227.00/unit
In Stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 20A, Type D, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2390
  • Mfr. Part No. M9F23120
Subtotal (1 unit)
TWD3,426.00(exc. GST)
TWD3,426.00/unit
In Stock
Mersen 32A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 690V ac
  • RS Stock No. 189-5334
  • Mfr. Part No. G1062698 / CMC101N
Subtotal (1 unit)
TWD687.00(exc. GST)
TWD687.00/unit
In Stock
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9816
Subtotal (1 pack of 10 units)
TWD193.00(exc. GST)
TWD19.30/unit
In Stock
RS Better World
Schneider Electric Acti9 iC60L Miniature Circuit Breaker, 3-Pole, 32A, Type C, 180 V dc DC, 15000 A Breaking Capacity
  • RS Stock No. 219-9286
  • Mfr. Part No. A9F94332
Subtotal (1 unit)
TWD10,076.00(exc. GST)
TWD10,076.00/unit
Temporarily out of stock
Eaton 25A T Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 854-8910
  • Mfr. Part No. FNQ-R-25
Subtotal (1 unit)
TWD3,462.00(exc. GST)
TWD3,462.00/unit
In Stock
RS PRO 2A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 209-9361
Subtotal (1 pack of 10 units)
TWD620.00(exc. GST)
TWD62.00/unit
In Stock
Mersen 32A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 304-1048
  • Mfr. Part No. A214107 / FR10GG40V32
Subtotal (1 pack of 10 units)
TWD621.00(exc. GST)
TWD62.10/unit
In Stock
ETA Thermal Overcurrent Circuit Breakers 2-5700 Thermal Circuit Breaker -, 7A Current Rating 1-Pole, Panel
  • RS Stock No. 405-9135
  • Mfr. Part No. 2-5700-IG1-P10-DD-000040-7A
Subtotal (1 unit)
TWD1,226.00(exc. GST)
TWD1,226.00/unit
In Stock
Littelfuse 5A Brown Car Fuse, 32V dc
  • RS Stock No. 787-4123
  • Mfr. Part No. 0297005.WXNV
Subtotal (1 pack of 10 units)
TWD90.00(exc. GST)
TWD9.00/unit
Temporarily out of stock
Eaton 1.25A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7112
  • Mfr. Part No. MDL-1-1-4-R
Subtotal (1 unit)
TWD210.00(exc. GST)
TWD210.00/unit
In Stock
Littelfuse 12A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 738-2832
  • Mfr. Part No. 0215012.TXP
Subtotal (1 pack of 10 units)
TWD609.00(exc. GST)
TWD60.90/unit
In Stock
Littelfuse 50A Red Car Fuse, 32V dc
  • RS Stock No. 431-6703
  • Mfr. Part No. 153.5631.5501
Subtotal (1 pack of 5 units)
TWD658.00(exc. GST)
TWD131.60/unit
Temporarily out of stock
SIBA 250mA T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3270
  • Mfr. Part No. 70-007-65/0.25A
Subtotal (1 pack of 10 units)
TWD201.00(exc. GST)
TWD20.10/unit
In Stock
RS Better World
ABB ComPact Home SH200 Miniature Circuit Breaker, 2-Pole, 16A, Type C, 400V ac AC, 400 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 231-9656
  • Mfr. Part No. 2CDS212001R0164 SH202-C 16
Subtotal (1 box of 1 unit)
TWD1,620.00(exc. GST)
TWD1,620.00/box
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