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

47472 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Mersen 10 A AM Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2785
  • Mfr. Part No. H213102 / FR10AM50V10I
Subtotal (1 box of 10 units)
TWD1,174.00(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)
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
Schneider Electric Multi9 C60SP Miniature Circuit Breaker, 3-Pole, 20 A, Type C, 440 V ac AC, 14 kA Breaking Capacity
  • RS Stock No. 211-2375
  • Mfr. Part No. M9F22320
Subtotal (1 unit)
TWD4,149.00(exc. GST)
In Stock
Better World
Schneider Electric iID RCCB, 63A, 4 Pole, 300mA, Type B-SI, 400V ac
  • RS Stock No. 248-3725
  • Mfr. Part No. A9Z64463
Subtotal (1 unit)
TWD65,022.00(exc. GST)
Being discontinued
RS PRO 4 A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-542
Subtotal (1 pack of 10 units)
TWD117.00(exc. GST)
Limited stock
ABB FH200 RCCB, 25A, 2 Pole, 30mA, Type AC
  • RS Stock No. 186-3455
  • Mfr. Part No. 2CSF202002R1250 FH202 AC-25/0,03
Subtotal (1 unit)
TWD2,054.00(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
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
Siemens SENTRON 5SY Miniature Circuit Breaker, 2-Pole, 16 A, Type B, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2319
  • Mfr. Part No. 5SY6216-6
Subtotal (1 unit)
TWD2,175.00(exc. GST)
In Stock
Better World
Schneider Electric Acti9 Acti9 1 Phase Busbar, 415 V ac, 18 mm Pitch
  • RS Stock No. 776-2718
  • Mfr. Part No. A9XPH124
Subtotal (1 unit)
TWD1,080.00(exc. GST)
In Stock
Bulgin 6.3A PCB Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 417-098
  • Mfr. Part No. FX0321
Subtotal (1 pack of 5 units)
TWD567.00(exc. GST)
In Stock
Mersen 4 A GG Ceramic Cartridge Fuse, 8 x 32 mm
  • RS Stock No. 230-2948
  • Mfr. Part No. W222958 / FR8GG40V4
Subtotal (1 pack of 10 units)
TWD426.00(exc. GST)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 253 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 231-9674
  • Mfr. Part No. 2CDS251103R0104 S201-C 10
Subtotal (1 box of 1 unit)
TWD1,504.00(exc. GST)
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 440 V ac AC, 12 V dc DC, 10 kA Breaking
  • RS Stock No. 535-4318
  • Mfr. Part No. 2CDS273001R0324 S203M-C32
Subtotal (1 unit)
TWD3,028.00(exc. GST)
In Stock
Littelfuse 12 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 787-4303
  • Mfr. Part No. 0314012.HXP
Subtotal (1 pack of 5 units)
TWD136.00(exc. GST)
In Stock
SIBA 10 A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 418-9618
  • Mfr. Part No. 70-059-61/10A
Subtotal (1 pack of 10 units)
TWD1,017.00(exc. GST)
In Stock
Eaton 32A Bolted Tag Fuse, F1, 440V ac
  • RS Stock No. 181-8729
  • Mfr. Part No. NS32BS
Subtotal (1 unit)
TWD467.00(exc. GST)
In Stock
RS PRO Earthing Strap Copper Copper
  • RS Stock No. 264-9253
Subtotal (1 pack of 5 units)
TWD1,583.00(exc. GST)
In Stock
Eaton 20A Panel Mount Fuse Holder for 6.3 x 32mm Fuse, 1P, 250V ac
  • RS Stock No. 852-6941
  • Mfr. Part No. HTB-44I-R
Subtotal (1 unit)
TWD328.00(exc. GST)
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