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

48995 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
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
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
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 PRO 5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 611-0282
Subtotal (1 pack of 10 units)
TWD471.00(exc. GST)
TWD47.10/unit
In Stock
Littelfuse 5A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0089
  • Mfr. Part No. 0312005.HXP
Subtotal (1 pack of 10 units)
TWD118.00(exc. GST)
TWD11.80/unit
In Stock
Littelfuse 1A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0120
  • Mfr. Part No. 0312001.HXP
Subtotal (1 pack of 10 units)
TWD153.00(exc. GST)
TWD15.30/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
In Stock
Mersen 10A AM Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2785
  • Mfr. Part No. H213102 / FR10AM50V10I
Subtotal (1 box of 10 units)
TWD1,225.00(exc. GST)
TWD1,225.00/box
In Stock
Littelfuse 0.1 A Resettable Fuse, 30V dc
  • RS Stock No. 546-3030
  • Mfr. Part No. MICROSMD010F-2
Subtotal (1 pack of 20 units)
TWD162.00(exc. GST)
TWD8.10/unit
Being discontinued
Littelfuse Non-Resettable Fuse 6A, 24V
  • RS Stock No. 624-3017
  • Mfr. Part No. 1206SFF600F/24-2
Subtotal (1 pack of 10 units)
TWD109.00(exc. GST)
TWD10.90/unit
In Stock
Schurter 10A Panel Mount Fuse Holder, 1P-Pole for 5 x 20 mm, 240V
  • RS Stock No. 789-7854
  • Mfr. Part No. 4301.1407
Subtotal (1 unit)
TWD107.00(exc. GST)
TWD107.00/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)
TWD2,145.00(exc. GST)
TWD2,145.00/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
In Stock
Okaya Electric Industries 1 Phase Surge Protector, 5 kA, Surface
  • RS Stock No. 190-2017
  • Mfr. Part No. LV480DI-Q4
Subtotal (1 unit)
TWD1,642.00(exc. GST)
TWD1,642.00/unit
In Stock
ABB System Pro M Compact SU200 M Miniature Circuit Breaker, 1-Pole, 20A, Type C, 277V ac AC, 277 V dc DC, 15 kA Breaking
  • RS Stock No. 231-9712
  • Mfr. Part No. 2CDS271337R0204 SU201M-C20
Subtotal (1 box of 1 unit)
TWD1,947.00(exc. GST)
TWD1,947.00/box
In Stock
Schneider Electric Acti9 iID Series Residual Current Circuit Breaker, 40A, 2-Pole, 300 mA, Type B-SI, 10 kA 230V ac
  • RS Stock No. 655-453
  • Mfr. Part No. A9Z64240
Subtotal (1 unit)
TWD63,609.00(exc. GST)
TWD63,609.00/unit
In Stock
Legrand 8A Ceramic Cartridge Fuse, 8 x 32 mm
  • RS Stock No. 266-3083
  • Mfr. Part No. 0 123 08
Subtotal (1 box of 10 units)
TWD739.00(exc. GST)
TWD739.00/box
In Stock
RS PRO 10A T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-592
Subtotal (1 pack of 10 units)
TWD162.00(exc. GST)
TWD16.20/unit
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