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

47650 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 3-Pole, 32 A, Type D, 400 V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 772-1385
  • Mfr. Part No. 5SY4332-8
Subtotal (1 unit)
TWD5,744.00(exc. GST)
In Stock
Eaton xPole PXL Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 400 V ac AC, 48 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 490-315
  • Mfr. Part No. 236429 PXL-C32/3
Subtotal (1 unit)
TWD1,748.00(exc. GST)
In Stock
Eaton 63 A British Standard Fuse FE 690 V ac, 63.5 mm
  • RS Stock No. 156-8973
  • Mfr. Part No. 63FE
Subtotal (1 unit)
TWD3,224.00(exc. GST)
In Stock
Eaton 750 mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 848-3059
  • Mfr. Part No. GMA-750-R
Subtotal (1 unit)
TWD63.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 63 A, 4-Pole, 300 mA, Type B-SI, 63 A
  • RS Stock No. 248-3725
  • Mfr. Part No. A9Z64463
Subtotal (1 unit)
TWD65,022.00(exc. GST)
Limited stock
ABB FH200 Series Residual Current Circuit Breaker, 25 A, 2-Pole, 30 mA, Type AC, 1 kA 230 V ac
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
TWD2,054.00(exc. GST)
Limited stock
Schneider Electric 50 A Rail Mount Fuse Holder, 1P-Pole, 690 V ac
  • RS Stock No. 482-897
  • Mfr. Part No. DF141
Subtotal (1 unit)
TWD557.00(exc. GST)
In Stock
RS PRO 10 mA to 60 A Yellow Car Fuse, 32 V dc
  • RS Stock No. 563-762
Subtotal (1 pack of 10 units)
TWD133.00(exc. GST)
In Stock
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 5 A, Type C, 400 V ac AC, 72 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 213-1070
  • Mfr. Part No. 5SY4111-7
Subtotal (1 unit)
TWD2,137.00(exc. GST)
In Stock
Socomec 32 A Rail Mount Fuse Holder, 2P-Pole, 690 V ac
  • RS Stock No. 122-5261
  • Mfr. Part No. 57010020
Subtotal (1 pack of 6 units)
TWD4,267.20(exc. GST)
In Stock
Littelfuse 10 A Red Car Fuse, 32 V dc
  • RS Stock No. 787-4101
  • Mfr. Part No. 0287010.PXCN
Subtotal (1 pack of 10 units)
TWD88.00(exc. GST)
In Stock
ABB System Pro M Compact SU200 M Miniature Circuit Breaker, 1-Pole, 20 A, Type C, 277 V ac AC, 277 V dc DC, 15 kA
  • RS Stock No. 231-9712
  • Mfr. Part No. 2CDS271337R0204 SU201M-C20
Subtotal (1 box of 1 unit)
TWD1,890.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 40 A, 2-Pole, 300 mA, Type B-SI, 10 kA 230 V ac
  • RS Stock No. 655-453
  • Mfr. Part No. A9Z64240
Subtotal (1 unit)
TWD63,609.00(exc. GST)
In Stock
Lovato Modulo P1MB Miniature Circuit Breaker, 1-Pole, 6 A, Type D, 230 V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5630
  • Mfr. Part No. P1MB1PD06
Subtotal (1 unit)
TWD635.00(exc. GST)
In Stock
Legrand 10 A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 180-6111
  • Mfr. Part No. 0 130 10
Subtotal (1 box of 10 units)
TWD789.00(exc. GST)
In Stock
Littelfuse 0.1 A Resettable Fuse, 30 V dc
  • RS Stock No. 546-3030
  • Mfr. Part No. MICROSMD010F-2
Subtotal (1 pack of 20 units)
TWD148.00(exc. GST)
In Stock
Better World
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Subtotal (1 unit)
TWD6,256.00(exc. GST)
In Stock
RS PRO 500 mA T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 721-1597
Subtotal (1 pack of 10 units)
TWD363.00(exc. GST)
Currently unavailable
Siemens 32 A Rail Mount Fuse Holder for 10 x 38 mm, 3P-Pole, 690 V
  • RS Stock No. 225-5421
  • Mfr. Part No. 3NW7033
Subtotal (1 unit)
TWD1,106.00(exc. GST)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 6 A, Type B, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7558
  • Mfr. Part No. 2CDS252001R0065 S202-B6
Subtotal (1 unit)
TWD1,553.00(exc. GST)
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