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

48234 Products showing for Fuses & Circuit Breakers

1 of 999+
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
RS PRO 4A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 721-1579
Subtotal (1 pack of 10 units)
TWD632.00(exc. GST)
TWD63.20/unit
In Stock
Eaton 25A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7421
  • Mfr. Part No. ABC-25-R
Subtotal (1 unit)
TWD161.00(exc. GST)
TWD161.00/unit
Currently unavailable
Mersen 5A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 816-8955
  • Mfr. Part No. Z090550
Subtotal (1 pack of 10 units)
TWD167.00(exc. GST)
TWD16.70/unit
Being discontinued
RS PRO 4A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-542
Subtotal (1 pack of 10 units)
TWD121.00(exc. GST)
TWD12.10/unit
In Stock
Better World
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 32A, Type D, 400V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1385
  • Mfr. Part No. 5SY4332-8
Subtotal (1 unit)
TWD5,547.00(exc. GST)
TWD5,547.00/unit
Limited stock
Schneider Electric 50A Rail Mount Fuse Holder, 1P-Pole, 690V ac
  • RS Stock No. 482-897
  • Mfr. Part No. DF141
Subtotal (1 unit)
TWD624.00(exc. GST)
TWD624.00/unit
In Stock
Littelfuse 5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0029
  • Mfr. Part No. 0313005.HXP
Subtotal (1 pack of 10 units)
TWD290.00(exc. GST)
TWD29.00/unit
Temporarily out of stock
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 13A, Type D, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2388
  • Mfr. Part No. M9F23113
Subtotal (1 unit)
TWD1,907.00(exc. GST)
TWD1,907.00/unit
In Stock
Eaton 750mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 848-3059
  • Mfr. Part No. GMA-750-R
Subtotal (1 unit)
TWD65.00(exc. GST)
TWD65.00/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)
TWD593.00(exc. GST)
TWD59.30/unit
Stocked by manufacturer
Siemens
  • RS Stock No. 231-3120
  • Mfr. Part No. 8GK9110-0KK00
Subtotal (1 unit)
TWD572.00(exc. GST)
TWD572.00/unit
In Stock
ABB FH200 Series Residual Current Circuit Breaker, 25A, 2-Pole, 30 mA, Type AC, 1 kA 230V ac
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
TWD2,221.00(exc. GST)
TWD2,221.00/unit
Temporarily out of stock
Eaton 400mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 849-6020
  • Mfr. Part No. GDA-400MA
Subtotal (1 pack of 5 units)
TWD959.00(exc. GST)
TWD191.80/unit
Temporarily out of stock
RS PRO 4A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-407
Subtotal (1 pack of 10 units)
TWD124.00(exc. GST)
TWD12.40/unit
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 3A, Type D, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-1037
  • Mfr. Part No. 177486 FAZ6-D3/1
Subtotal (1 unit)
TWD1,225.00(exc. GST)
TWD1,225.00/unit
In Stock
Europa EUC1P EUC1P Miniature Circuit Breaker, 1-Pole, 16A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6507
  • Mfr. Part No. EUC1P16C
Subtotal (1 unit)
TWD573.00(exc. GST)
TWD573.00/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 40A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3408
  • Mfr. Part No. A9F54340
Subtotal (1 unit)
TWD6,003.00(exc. GST)
TWD6,003.00/unit
In Stock
Siemens Connection Plug for use with 3RV2 Series
  • RS Stock No. 755-2965
  • Mfr. Part No. 3RV2917-5CA00
Subtotal (1 unit)
TWD416.00(exc. GST)
TWD416.00/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)
TWD10,603.00(exc. GST)
TWD10,603.00/unit
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