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

20637 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS Better World
Schneider Electric, ComPact NSX, ComPacT NSX250F Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 254-6352
  • Mfr. Part No. C25F3
Subtotal (1 unit)
PHP49,843.09(exc. VAT)
PHP49,843.09/unit
In Stock
Schneider Electric, EasyPact, EZC250H Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 36 kA, Fixed
  • RS Stock No. 269-6187
  • Mfr. Part No. EZC250H3250
Subtotal (1 unit)
PHP45,562.18(exc. VAT)
PHP45,562.18/unit
Currently unavailable
Schurter Circuit Breaker Switch - TA45 2 Pole 120V ac Voltage Rating Panel Mount, 5.5A Current Rating
  • RS Stock No. 868-9064
  • Mfr. Part No. 4430.0479
Subtotal (1 unit)
PHP2,181.79(exc. VAT)
PHP2,181.79/unit
In Stock
Littelfuse 1A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4375
  • Mfr. Part No. 0217001.MXP
Subtotal (1 pack of 10 units)
PHP162.78(exc. VAT)
PHP16.278/unit
Stocked by manufacturer
Schneider Electric 3 Phase Surge Protector, 40 kA
  • RS Stock No. 815-3278
  • Mfr. Part No. SDSA3650
Subtotal (1 unit)
PHP18,069.97(exc. VAT)
PHP18,069.97/unit
In Stock
RS PRO 30A Rail Mount Fuse Holder
  • RS Stock No. 242-0497
Subtotal (1 bag of 10 units)
PHP3,822.04(exc. VAT)
PHP3,822.04/bag
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 40A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3408
  • Mfr. Part No. A9F54340
Subtotal (1 unit)
PHP8,661.88(exc. VAT)
PHP8,661.88/unit
Stocked by manufacturer
Schneider Electric Acti9 Acti9 1 Phase Distribution Board 125A 24 Way
  • RS Stock No. 207-329
  • Mfr. Part No. SE125A24
Subtotal (1 unit)
PHP30,547.30(exc. VAT)
PHP30,547.30/unit
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 40A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 201-6943
  • Mfr. Part No. 2CSR255080R1405 DS201 B40 AC30
Subtotal (1 unit)
PHP11,723.15(exc. VAT)
PHP11,723.15/unit
Limited stock
nVent ERICO Aluminium Neutral Double Busbar Neutral Double Busbar Busbar
  • RS Stock No. 646-815
  • Mfr. Part No. 568721
Subtotal (1 unit)
PHP1,008.16(exc. VAT)
PHP1,008.16/unit
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 20A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 201-6937
  • Mfr. Part No. 2CSR255080R1204 DS201 C20 AC30
Subtotal (1 unit)
PHP14,120.83(exc. VAT)
PHP14,120.83/unit
In Stock
RS PRO 1 Phase Industrial Surge Protector, 50 kA, 1.25 kV, DIN Rail
  • RS Stock No. 101-801
Subtotal (1 unit)
PHP6,549.91(exc. VAT)
PHP6,549.91/unit
Stocked by manufacturer
ABB Copper Busbar
  • RS Stock No. 237-6602
  • Mfr. Part No. 2CPX061421R9999
Subtotal (1 box of 1 unit)
PHP37,840.86(exc. VAT)
PHP37,840.86/box
Stocked by manufacturer
Schneider Electric Acti9 Acti9 1 Phase Distribution Board 16 Way
  • RS Stock No. 339-832
  • Mfr. Part No. SEA9DE32
Subtotal (1 unit)
PHP15,031.99(exc. VAT)
PHP15,031.99/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 40A Current Rating, 1-Pole, Type AB, Easy9
  • RS Stock No. 850-8662
  • Mfr. Part No. EZ9D16840
Subtotal (1 unit)
PHP2,117.04(exc. VAT)
PHP2,117.04/unit
Stocked by manufacturer
Phoenix Contact 3 Phase Surge Protector, 50 kA, 250 V ac, DIN Rail
  • RS Stock No. 712-5276
  • Mfr. Part No. 2800188
Subtotal (1 unit)
PHP33,295.17(exc. VAT)
PHP33,295.17/unit
In Stock
Schneider Electric, Acti9, PowerTag A9, 63A, Energy Sensor, 1 VA, Wireless
  • RS Stock No. 134-8661
  • Mfr. Part No. A9MEM1540
Subtotal (1 unit)
PHP20,285.60(exc. VAT)
PHP20,285.60/unit
In Stock
WJ Furse Copper Alloy Earth Clamp Max. Conductor Size 12 mm² Nominal Rod dia. 12.7 mm
  • RS Stock No. 153-2961
  • Mfr. Part No. 7TCA083210R0004 CR105
Subtotal (1 pack of 10 units)
PHP7,893.35(exc. VAT)
PHP789.335/unit
In Stock
Phoenix Contact Surge Protection Device, 0.026 kA, DIN Rail
  • RS Stock No. 188-8255
  • Mfr. Part No. 2907919
Subtotal (1 unit)
PHP10,138.40(exc. VAT)
PHP10,138.40/unit
Stocked by manufacturer
Schneider Electric, ComPact, C08 MCCB 3-Pole 800A, Breaking Capacity 50 kA, Fixed
  • RS Stock No. 655-144
  • Mfr. Part No. C080N320FM
Subtotal (1 unit)
PHP253,842.59(exc. VAT)
PHP253,842.59/unit
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