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

49449 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schurter 10A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 789-7788
  • Mfr. Part No. 0001.2514
Subtotal (1 bag of 10 units)
SGD9.22(exc. GST)
SGD0.922/unit
In Stock
Eaton 7A F Melamine Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 458-8548
  • Mfr. Part No. KTK-7
Subtotal (1 pack of 5 units)
SGD216.24(exc. GST)
SGD43.248/unit
In Stock
Wickmann Non-Resettable Fuse, Radial 1 A, 250 V ac
  • RS Stock No. 226-6583
  • Mfr. Part No. 3721100000
Subtotal (1 pack of 10 units)
SGD9.92(exc. GST)
SGD0.992/unit
In Stock
Eaton 16A D2 Bottle Fuse, E27 Thread Size, 500V ac
  • RS Stock No. 181-8902
  • Mfr. Part No. 16D27Q
Subtotal (1 unit)
SGD3.33(exc. GST)
SGD3.33/unit
In Stock
Littelfuse 15A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 769-0057
  • Mfr. Part No. 0314015.HXP
Subtotal (1 pack of 10 units)
SGD13.60(exc. GST)
SGD1.36/unit
Temporarily out of stock
RS PRO RCBO, 32A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type B, RSKO Range, RCBO Range
  • RS Stock No. 756-195
Subtotal (1 unit)
SGD49.66(exc. GST)
SGD49.66/unit
In Stock
ABB RCBO, 20A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type A, DS301C Range, 2CSR255163R Range
  • RS Stock No. 707-314
  • Mfr. Part No. 2CSR255163R1204
Subtotal (1 unit)
SGD211.16(exc. GST)
SGD211.16/unit
In Stock
ABB Tmax XT Lockable Handle for use with Circuit Breaker
  • RS Stock No. 232-0191
  • Mfr. Part No. 1SDA066475R1 RHD XT1-XT3 F/P
Subtotal (1 unit)
SGD170.72(exc. GST)
SGD170.72/unit
In Stock
RS PRO 2.5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 668-6073
Subtotal (1 pack of 10 units)
SGD6.82(exc. GST)
SGD0.682/unit
In Stock
ABB S802 Circuit Breaker, 2-Pole, 32A, Type C, 690V ac AC, 250 V dc DC, 50 kA Breaking Capacity
  • RS Stock No. 287-6380
  • Mfr. Part No. 2CCS862001R0324
Subtotal (1 unit)
SGD432.75(exc. GST)
SGD432.75/unit
In Stock
Mersen 12A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2933
  • Mfr. Part No. W219761 / FR10GG50V12
Subtotal (1 box of 10 units)
SGD30.42(exc. GST)
SGD30.42/box
In Stock
Mersen 8A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2725
  • Mfr. Part No. D217169 / FR10GG50V8
Subtotal (1 box of 10 units)
SGD26.97(exc. GST)
SGD26.97/box
In Stock
Littelfuse 12A 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)
SGD6.74(exc. GST)
SGD1.348/unit
In Stock
Selco Thermal Fuse 216 °C, 10 A, 250 V ac
  • RS Stock No. 111-7811
  • Mfr. Part No. SWTC-421-3535
Subtotal (1 pack of 10 units)
SGD33.54(exc. GST)
SGD3.354/unit
Temporarily out of stock
Phoenix Contact TCP 1A Thermal Circuit Breaker - 1-Pole, On Base Element, 1A Current Rating, 250V ac, 65 V dc
  • RS Stock No. 170-3783
  • Mfr. Part No. 0712194
Subtotal (1 box of 20 units)
SGD515.60(exc. GST)
SGD25.78/unit
In Stock
RS PRO 30 A In-line Fuse Holder for 19 x 18.6 mm, 32 V dc
  • RS Stock No. 284-6488
Subtotal (1 pack of 5 units)
SGD29.23(exc. GST)
SGD5.846/unit
Temporarily out of stock
RS PRO RCBO, 32A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type B, RSKO Range, RCBO Range
  • RS Stock No. 756-207
Subtotal (1 unit)
SGD55.18(exc. GST)
SGD55.18/unit
In Stock
ETI 35A D02 Neozed Fuse, E18 Thread Size, 400V ac
  • RS Stock No. 416-001
  • Mfr. Part No. 2212003
Subtotal (1 pack of 5 units)
SGD16.39(exc. GST)
SGD3.278/unit
In Stock
Legrand 40A AM Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 266-3118
  • Mfr. Part No. 0 140 40
Subtotal (1 box of 10 units)
SGD68.78(exc. GST)
SGD68.78/box
In Stock
Schurter 3.15A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 830-4230
  • Mfr. Part No. 8020.5016.G
Subtotal (1 pack of 10 units)
SGD12.05(exc. GST)
SGD1.205/unit
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