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

37039 Products showing for Fuses & Circuit Breakers

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1 of 999+
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 16A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8866
  • Mfr. Part No. A9F44116
Subtotal (1 unit)
$21.40(exc. GST)
$21.40/unit
In Stock
RS Better World
Schneider Electric, ComPact New Generation, ComPacT NSX100N Circuit Breaker 3-Pole 63A, Breaking Capacity 50 kA, Fixed
  • RS Stock No. 254-6298
  • Mfr. Part No. C10N3TM063
Subtotal (1 unit)
$904.98(exc. GST)
$904.98/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 2A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6651
  • Mfr. Part No. A9F44102
Subtotal (1 unit)
$19.25(exc. GST)
$19.25/unit
In Stock
Eaton 2A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
$22.49(exc. GST)
$22.49/pack
In Stock
Eaton 1A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 228-660
  • Mfr. Part No. C10G1 CYLINDRICAL FUSE 10 x 38 1A GG 500V AC
Subtotal (1 pack of 10 units)
$24.34(exc. GST)
$24.34/pack
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6653
  • Mfr. Part No. A9F44120
Subtotal (1 unit)
$19.17(exc. GST)
$19.17/unit
In Stock
RS Better World
ABB System Pro M Compact S200M Miniature Circuit Breaker, 3-Pole, 2A, Type C, 440V ac AC, 12 V dc DC, 10 kA Breaking
  • RS Stock No. 535-4239
  • Mfr. Part No. 2CDS273001R0024 S203M-C2
Subtotal (1 unit)
$235.75(exc. GST)
$235.75/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6652
  • Mfr. Part No. A9F44104
Subtotal (1 unit)
$19.25(exc. GST)
$19.25/unit
In Stock
Schurter 20A Panel Mount Fuse Holder, 1P-Pole for 6.3 x 32 mm, 600V ac
  • RS Stock No. 123-2017
  • Mfr. Part No. 0031.1622
Subtotal (1 unit)
$25.49(exc. GST)
$25.49/unit
In Stock
RS PRO 10A In-line Fuse Holder for 5 x 20 mm, 250V
  • RS Stock No. 237-5259
Subtotal (1 unit)
$6.46(exc. GST)
$6.46/unit
In Stock
Bulgin 13A Panel Mount Fuse Holder, 1P-Pole for 6.3 x 32 mm, 250V ac
  • RS Stock No. 408-369
  • Mfr. Part No. FX0415
Subtotal (1 unit)
$26.53(exc. GST)
$26.53/unit
In Stock
Eaton NZM Door Coupling Handle for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 255-551
  • Mfr. Part No. 260166 NZM1-XTVD
Subtotal (1 unit)
$192.77(exc. GST)
$192.77/unit
In Stock
Eaton 125A Centred Tag Fuse NH00 500V ac
  • RS Stock No. 703-8655
  • Mfr. Part No. 125NHG00B
Subtotal (1 unit)
$26.77(exc. GST)
$26.77/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 4-Pole, 63A, Type D, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7942
  • Mfr. Part No. 2CDS254001R0631 S204-D63
Subtotal (1 unit)
$522.05(exc. GST)
$522.05/unit
In Stock
TE Connectivity 0 to +60 °C W54 Thermal Circuit Breaker -, 15A Current Rating 1-Pole, Direct
  • RS Stock No. 782-7975
  • Mfr. Part No. W54-XB1A4A10-15
Subtotal (1 unit)
$12.96(exc. GST)
$12.96/unit
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 25A, Type D, 440V ac AC, 12 V dc DC, 6 kA Breaking
  • RS Stock No. 527-9627
  • Mfr. Part No. 2CDS253001R0251 S203-D25
Subtotal (1 unit)
$171.18(exc. GST)
$171.18/unit
In Stock
RS Better World
ABB System Pro M Compact S200M Miniature Circuit Breaker, 2-Pole, 32A, Type B, 440V ac AC, 125 V dc DC, 10 kA Breaking
  • RS Stock No. 132-059
  • Mfr. Part No. 2CDS272001R0325 S202M-B32
Subtotal (1 unit)
$149.63(exc. GST)
$149.63/unit
In Stock
Mersen 160A NH Fuse NH00 500V ac
  • RS Stock No. 375-9632
  • Mfr. Part No. P211084 / NH00GG50V160
Subtotal (1 pack of 3 units)
$79.149(exc. GST)
$26.383/unit
In Stock
ABB Earth & Neutral Terminal Bar for use with Miniature Circuit Breaker
  • RS Stock No. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
Subtotal (1 box of 1 unit)
$13.98(exc. GST)
$13.98/box
In Stock
RS Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 13A, Type D, 230V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7835
  • Mfr. Part No. 2CDS251001R0131 S201-D13
Subtotal (1 unit)
$44.52(exc. GST)
$44.52/unit
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