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

47102 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Littelfuse 6.3 A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4713
  • Mfr. Part No. 021506.3MXP
Each (In a Pack of 10)
TWD37.10(exc. GST)
In Stock
Eaton 250 mA T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7027
  • Mfr. Part No. MDA-1-4-R
Each
TWD180.00(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
Each (In a Pack of 10)
TWD14.70(exc. GST)
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 3-Pole, 32 A, Type C, 440 V AC, 12 V DC, 10 kA Breaking
  • RS Stock No. 535-4318
  • Mfr. Part No. 2CDS273001R0324 S203M-C32
Each
TWD3,028.00(exc. GST)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 20 A, Type K, 440 V AC, 110 V DC, 20 kA Breaking
  • RS Stock No. 514-0232
  • Mfr. Part No. 2CDS253001R0487 S203-K20
Each
TWD3,555.00(exc. GST)
In Stock
Siemens SENTRON 5SY Miniature Circuit Breaker, 1-Pole, 2 A, Type A, 400 V AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Each
TWD2,059.00(exc. GST)
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 2.5 A, Type D, 240 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-1019
  • Mfr. Part No. 177522 FAZ6-D2,5/1N
Each
TWD2,482.00(exc. GST)
Temporarily out of stock
Okaya Electric Industries 1 Phase Surge Protector, 5 kA, Surface
  • RS Stock No. 190-2017
  • Mfr. Part No. LV480DI-Q4
Each
TWD1,642.00(exc. GST)
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 3 A, Type D, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-1037
  • Mfr. Part No. 177486 FAZ6-D3/1
Each
TWD1,225.00(exc. GST)
In Stock
Schneider Electric Acti9 Acti9 1 Phase Busbar, 415 V ac, 18 mm Pitch
  • RS Stock No. 776-2718
  • Mfr. Part No. A9XPH124
Each
TWD1,080.00(exc. GST)
In Stock
RS PRO 10 A T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-592
Each (In a Pack of 10)
TWD15.70(exc. GST)
In Stock
Eaton 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 2P, 690V ac
  • RS Stock No. 765-2945
  • Mfr. Part No. CHM2DU
Each
TWD408.00(exc. GST)
In Stock
Littelfuse Non-Resettable Fuse 4 A, 125 V
  • RS Stock No. 541-3669
  • Mfr. Part No. 0452004.MRL
Each (In a Pack of 10)
TWD27.30(exc. GST)
Temporarily out of stock
Eaton 250 mA T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 169-9371
  • Mfr. Part No. TDC11-250MA
1 Bag of 1000
TWD89,486.00(exc. GST)
In Stock
RS PRO 3.15 A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 414-049
Each (In a Pack of 10)
TWD32.30(exc. GST)
Being discontinued
Littelfuse Non-Resettable Fuse 6 A, 24 V
  • RS Stock No. 624-3017
  • Mfr. Part No. 1206SFF600F/24-2
Each (In a Pack of 10)
TWD10.40(exc. GST)
Stock information currently inaccessible
Schurter 12 A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 173-7910
  • Mfr. Part No. 8020.0603.G
1 Box of 1000
TWD23,411.00(exc. GST)
In Stock
Eaton 6.3 A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 849-5645
  • Mfr. Part No. GMC-6-3-R
Each
TWD206.00(exc. GST)
In Stock
RS PRO 10 A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 209-9406
Each (In a Pack of 10)
TWD99.70(exc. GST)
In Stock
Littelfuse 1 A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0120
  • Mfr. Part No. 0312001.HXP
Each (In a Pack of 10)
TWD11.60(exc. GST)
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