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

48772 Products showing for Fuses & Circuit Breakers

1 of 999+
Temporarily out of stock
Wickmann 5A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 174-0256
  • Mfr. Part No. 0312005.MXP
Subtotal (1 box of 1000 units)
TWD10,183.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 3-Pole, 20A, Type C, 14 kA Breaking Capacity
  • RS Stock No. 211-2375
  • Mfr. Part No. M9F22320
Subtotal (1 unit)
TWD4,647.00(exc. GST)
In Stock
Eaton xPole xPole Miniature Circuit Breaker, 1-Pole, 6A, Type C, 230V ac AC, 4.5 kA Breaking Capacity
  • RS Stock No. 230-1084
  • Mfr. Part No. 264743 PLG4-C6/1N
Subtotal (1 unit)
TWD612.00(exc. GST)
In Stock
Lovato Modulo P1MB Miniature Circuit Breaker, 1-Pole, 10A, Type C, 230V ac AC, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5598
  • Mfr. Part No. P1MB1PC10
Subtotal (1 unit)
TWD586.00(exc. GST)
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)
TWD258.00(exc. GST)
In Stock
Bulgin 6.3 A PCB Mount Fuse Holder for 5 x 20 mm, 250 V ac
  • RS Stock No. 417-098
  • Mfr. Part No. FX0321
Subtotal (1 pack of 5 units)
TWD497.00(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)
TWD158.00(exc. GST)
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)
Stocked by manufacturer
Better World
Schneider Electric ComPact NSX Mounting Base for use with Compact NSX 400/630
  • RS Stock No. 221-1241
  • Mfr. Part No. LV432516
Subtotal (1 unit)
TWD25,742.00(exc. GST)
In Stock
Better World
Schneider Electric Multi9 Multi9 Miniature Circuit Breaker, 1-Pole, 13A, Type C, 60 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 211-2358
  • Mfr. Part No. M9F22113
Subtotal (1 unit)
TWD757.00(exc. GST)
Being discontinued
Littelfuse Non-Resettable Fuse 6 A, 24 V
  • RS Stock No. 624-3017
  • Mfr. Part No. 1206SFF600F/24-2
Subtotal (1 pack of 10 units)
TWD104.00(exc. GST)
In Stock
Mersen 2A GG Ceramic Cartridge Fuse, 8 x 32 mm
  • RS Stock No. 230-2932
  • Mfr. Part No. Q219227 / FR8GG40V2
Subtotal (1 pack of 10 units)
TWD405.00(exc. GST)
In Stock
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9816
Subtotal (1 pack of 10 units)
TWD188.00(exc. GST)
In Stock
Schurter 5A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 777-7495
  • Mfr. Part No. 0034.1523
Subtotal (1 pack of 10 units)
TWD113.00(exc. GST)
In Stock
ABB 250V, 415 V ON-OFF Switch Circuit Trip for use with Push Buttons and Indicator Lights
  • RS Stock No. 231-9543
  • Mfr. Part No. 2CCA703005R0001 2F E211-16-20
Subtotal (1 box of 1 unit)
TWD774.00(exc. GST)
Temporarily out of stock
Better World
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)
In Stock
Better World
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 32A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS Stock No. 734-9166
  • Mfr. Part No. A9F77332
Subtotal (1 unit)
TWD5,754.00(exc. GST)
In Stock
Eaton 500mA T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7023
  • Mfr. Part No. MDA-1-2-R
Subtotal (1 unit)
TWD247.00(exc. GST)
In Stock
Siemens 40A Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 396-253
  • Mfr. Part No. 3NC1440
Subtotal (1 pack of 10 units)
TWD8,795.00(exc. GST)
Being discontinued
RS PRO 4A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-481
Subtotal (1 pack of 10 units)
TWD111.00(exc. GST)
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