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

48906 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric R9PR RCCB, 63A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 276-8972
  • Mfr. Part No. R9PRA263
Each
SGD274.53(exc. GST)
In Stock
Eaton 2 A F Ceramic Cartridge Fuse, 6.3 x 25 mm
  • RS Stock No. 412-554
  • Mfr. Part No. TDC180-2A
Each (In a Pack of 10)
SGD0.826(exc. GST)
Limited stock
ABB SN201L SN201 Miniature Circuit Breaker, 1-Pole, 2 A, Type C, 230 V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 191-9456
  • Mfr. Part No. 2CSS245102R0024 SN201 L C2-L
Each
SGD26.58(exc. GST)
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 1-Pole, 1 A, Type D, 240 V ac AC, 48 V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7024
  • Mfr. Part No. 278569 FAZ-D1/1
Each
SGD63.66(exc. GST)
In Stock
Eaton 6 A Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 703-8415
  • Mfr. Part No. C14G6
Each (In a Pack of 10)
SGD3.453(exc. GST)
Currently unavailable
ABB SN201 SN201 Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 230 V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3468
  • Mfr. Part No. 2CSS245102R0044 SN201 L C4-L
Each
SGD34.89(exc. GST)
In Stock
RS PRO 2 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 413-204
Each (In a Pack of 10)
SGD1.827(exc. GST)
In Stock
Wickmann Non-Resettable Fuse, Radial 1 A, 250 V
  • RS Stock No. 226-6583
  • Mfr. Part No. 3721100000
Each (In a Pack of 10)
SGD0.992(exc. GST)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IELHK111 3 Pole Panel Mount, 45A Current Rating
  • RS Stock No. 275-0239
  • Mfr. Part No. IELHK111-1-61F-45.0-A-01-V
Each
SGD340.22(exc. GST)
Being discontinued
RS PRO 2 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-431
Each (In a Pack of 10)
SGD0.602(exc. GST)
Temporarily out of stock
Mersen 6 A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2926
  • Mfr. Part No. V302790
1 Box of 10
SGD138.47(exc. GST)
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 32 A Current Rating, 4-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 231-9958
  • Mfr. Part No. 2CSR256140R1324 DS203NC C32 A30
Each
SGD352.99(exc. GST)
In Stock
Schneider Electric Multi9 C60N Miniature Circuit Breaker, 2-Pole, 16 A, Type C, 125 V DC, 10 kA Breaking Capacity
  • RS Stock No. 214-2066
  • Mfr. Part No. M9F11216
Each
SGD150.28(exc. GST)
In Stock
SIBA 12.5 A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3333
  • Mfr. Part No. 70-007-65/12.5A
Each (In a Pack of 10)
SGD0.619(exc. GST)
In Stock
ABB F200 RCCB, 40A, 4 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 177-5057
  • Mfr. Part No. 2CSF204401R1400 F204 A-40/0,03 AP-R
Each
SGD399.00(exc. GST)
In Stock
Schurter Non-Resettable Fuse, Radial 1 A, 250 V
  • RS Stock No. 284-5338
  • Mfr. Part No. 0034.6615
Each (In a Pack of 10)
SGD0.777(exc. GST)
In Stock
Siemens Residual Current Circuit Breaker with Overload Protection, 10 A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 150-4176
  • Mfr. Part No. 5SU1354-6KK10
Each
SGD231.63(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1140-F Single Pole 250V Voltage Rating Snap In, 8A Current Rating
  • RS Stock No. 728-8670
  • Mfr. Part No. 1140-F111-P1M1-8A
Each
SGD23.34(exc. GST)
In Stock
Eaton RCD, 16A, 2 Pole, 10mA, Type AC
  • RS Stock No. 922-8591
  • Mfr. Part No. 235389 PFIM-16/2/001-MW
Each
SGD257.73(exc. GST)
Temporarily out of stock
Mersen 6.3 A Quick Acting Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 630-888
  • Mfr. Part No. V090523Q
1 Box of 10
SGD8.33(exc. GST)
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