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

26819 Products showing for Fuses & Circuit Breakers

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1 of 999+
In Stock
Siemens 400A Centred Tag Fuse NH2 690V ac
  • RS Stock No. 397-389
  • Mfr. Part No. 3NE1332-0
Subtotal (1 pack of 3 units)
PHP95,675.271(exc. VAT)
PHP31,891.757/unit
In Stock
ifm electronic Circuit Breaker
  • RS Stock No. 100-569
  • Mfr. Part No. DF1216
Subtotal (1 unit)
PHP6,881.11(exc. VAT)
PHP6,881.11/unit
In Stock
Siemens 10A D01 Neozed Fuse, 400V ac
  • RS Stock No. 622-1051
  • Mfr. Part No. 5SE2310
Subtotal (1 pack of 10 units)
PHP1,326.66(exc. VAT)
PHP1,326.66/pack
In Stock
RS Better World
Schneider Electric 220V ac, 440 V ac Circuit Trip for use with ComPacT Circuit Breakers
  • RS Stock No. 130-910
  • Mfr. Part No. LV432464
Subtotal (1 unit)
PHP221,773.20(exc. VAT)
PHP221,773.20/unit
Temporarily out of stock
Eaton 200A Bolted Tag Fuse NH000 690V, 78 mm
  • RS Stock No. 852-7572
  • Mfr. Part No. 170M1370
Subtotal (1 unit)
PHP7,592.64(exc. VAT)
PHP7,592.64/unit
Stocked by manufacturer
Phoenix Contact 3 Phase Surge Protector, 40 kA, 440 V ac, DIN Rail
  • RS Stock No. 201-5439
  • Mfr. Part No. 2909968
Subtotal (1 unit)
PHP21,310.45(exc. VAT)
PHP21,310.45/unit
Stocked by manufacturer
ABB Copper Busbar
  • RS Stock No. 237-6602
  • Mfr. Part No. 2CPX061421R9999
Subtotal (1 box of 1 unit)
PHP41,624.95(exc. VAT)
PHP41,624.95/box
Stocked by manufacturer
RS Better World
ABB, Tmax XT, Tmax XT Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 85 kA, Fixed
  • RS Stock No. 236-6663
  • Mfr. Part No. 1SDA068269R1 XT3S 250 TMG 160A FF
Subtotal (1 unit)
PHP61,096.10(exc. VAT)
PHP61,096.10/unit
Stocked by manufacturer
Eaton IZMX/INX Electronic Circuit Breaker 1600A 690V, Fixed
  • RS Stock No. 127-709
  • Mfr. Part No. 183340 IZMX16H3-V16F-1
Subtotal (1 unit)
PHP811,641.93(exc. VAT)
PHP811,641.93/unit
Supply shortage
Penta Fibreglass Earth Clamp 317.5mm
  • RS Stock No. 248-9892
  • Mfr. Part No. PIMT49S
Subtotal (1 unit)
PHP295,115.78(exc. VAT)
PHP295,115.78/unit
Stocked by manufacturer
Schneider Electric A9R Series Residual Current Circuit Breaker, 100A, 2-Pole, 100000 mA, 1500 A 240V ac
  • RS Stock No. 245-145
  • Mfr. Part No. A9R21291
Subtotal (1 unit)
PHP86,753.40(exc. VAT)
PHP86,753.40/unit
Stocked by manufacturer
ABB, 1SDA05 Molded Case Circuit Breaker 3-Pole 400A
  • RS Stock No. 250-4097
  • Mfr. Part No. 1SDA054365R1
Subtotal (1 unit)
PHP257,600.08(exc. VAT)
PHP257,600.08/unit
In Stock
ABB 24 Plastic Consumer Unit, 125A, EN60439-3, IEC60670 IP65 MISTRAL65
  • RS Stock No. 811-1906
  • Mfr. Part No. 1SL1204A00 65P12X22
Subtotal (1 unit)
PHP5,596.60(exc. VAT)
PHP5,596.60/unit
Temporarily out of stock
WJ Furse Copper Alloy Earth Clamp Max. Conductor Size 70 mm² Nominal Rod dia. 16 mm 304.8mm
  • RS Stock No. 153-2963
  • Mfr. Part No. 7TCA083220R0010 CR515
Subtotal (1 pack of 10 units)
PHP7,977.09(exc. VAT)
PHP797.709/unit
Stocked by manufacturer
RS Better World
Schneider Electric, ComPact New Generation, ComPacT NSX Molded Case Circuit Breaker 3-Pole 125A, Breaking Capacity 25 kA
  • RS Stock No. 260-7740
  • Mfr. Part No. C16B3TM125
Subtotal (1 unit)
PHP62,750.13(exc. VAT)
PHP62,750.13/unit
Limited stock
Eaton 63A Centred Tag Fuse NH000 500V ac
  • RS Stock No. 703-8649
  • Mfr. Part No. 63NHG000B
Subtotal (1 unit)
PHP566.71(exc. VAT)
PHP566.71/unit
In Stock
RS Better World
Siemens 5SV3 Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A, 0.8 kA 230V ac
  • RS Stock No. 124-7729
  • Mfr. Part No. 5SV3314-6
Subtotal (1 unit)
PHP6,827.62(exc. VAT)
PHP6,827.62/unit
Stocked by manufacturer
Siemens 5SM33 Series Residual Current Circuit Breaker, 125A, 2-Pole, 30 mA, Type A, 1.25 kA 230V ac
  • RS Stock No. 328-487
  • Mfr. Part No. 5SM3315-6KK
Subtotal (1 unit)
PHP46,331.27(exc. VAT)
PHP46,331.27/unit
In Stock
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 3-Pole 250A, Breaking Capacity 50 kA
  • RS Stock No. 260-7931
  • Mfr. Part No. C25N3
Subtotal (1 unit)
PHP70,055.39(exc. VAT)
PHP70,055.39/unit
Stocked by manufacturer
Schneider Electric Lockable Acti9 Acti9 3 Phase Distribution Board, 250A, Steel, 14 Way
  • RS Stock No. 654-722
  • Mfr. Part No. SEA9BPN8AFD6
Subtotal (1 unit)
PHP60,331.16(exc. VAT)
PHP60,331.16/unit
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