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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2 of 999+
In Stock
Schneider Electric Residual Current Circuit Breaker, 32A Current Rating, 2-Pole, 30 mA Trip Sensitivity, Type C, Acti9
  • RS Stock No. 110-285
  • Mfr. Part No. A9D07232
Subtotal (1 unit)
PHP61,091.65(exc. VAT)
PHP61,091.65/unit
In Stock
Eaton 100A Bolted Tag Fuse FE 690V ac, 63.5 mm
  • RS Stock No. 182-1567
  • Mfr. Part No. 100FE
Subtotal (1 unit)
PHP2,273.56(exc. VAT)
PHP2,273.56/unit
Stocked by manufacturer
Siemens, SENTRON, 3VA5 Molded Case Circuit Breaker 3-Pole 150A, Breaking Capacity 65 kA, Fixed
  • RS Stock No. 147-383
  • Mfr. Part No. 3VA5215-0BB31-0AA0
Subtotal (1 unit)
PHP99,594.66(exc. VAT)
PHP99,594.66/unit
In Stock
Siemens 160A Centred Tag Fuse NH000 250V ac
  • RS Stock No. 203-1972
  • Mfr. Part No. 3NA3836-8
Subtotal (1 pack of 3 units)
PHP11,909.199(exc. VAT)
PHP3,969.733/unit
In Stock
Siemens 125A NH Fuse NH00 500V ac
  • RS Stock No. 396-118
  • Mfr. Part No. 3NA3832
Subtotal (1 pack of 3 units)
PHP3,828.471(exc. VAT)
PHP1,276.157/unit
In Stock
WJ Furse Earth Rod 1.2 m Copper
  • RS Stock No. 153-2966
  • Mfr. Part No. 7TCA083120R0011 RB005
Subtotal (1 pack of 10 units)
PHP19,096.52(exc. VAT)
PHP1,909.652/unit
In Stock
Siemens 25A Centred Tag Fuse NH000 690V
  • RS Stock No. 210-6941
  • Mfr. Part No. 3NA7810-6
Subtotal (1 pack of 3 units)
PHP11,849.571(exc. VAT)
PHP3,949.857/unit
In Stock
Mersen 315A German Standard Fuse 31 700V, 101.6 mm
  • RS Stock No. 304-2445
  • Mfr. Part No. K300021 / PC31UD69V315D1A
Subtotal (1 unit)
PHP14,183.98(exc. VAT)
PHP14,183.98/unit
In Stock
Schneider Electric Earthing Strap Brass Brass
  • RS Stock No. 211-8775
  • Mfr. Part No. NSYAEECS
Subtotal (1 unit)
PHP8,872.90(exc. VAT)
PHP8,872.90/unit
In Stock
RS PRO, RS, RS102E Circuit Breaker 3-Pole 1600A, Breaking Capacity 70 kA, Panel Mount
  • RS Stock No. 683-391
Subtotal (1 unit)
PHP138,303.96(exc. VAT)
PHP138,303.96/unit
In Stock
Mersen 315A German Standard Fuse 30 700V, 101.6 mm
  • RS Stock No. 304-2401
  • Mfr. Part No. Y300125 / PC30UD69V315D1A
Subtotal (1 unit)
PHP19,382.22(exc. VAT)
PHP19,382.22/unit
Stocked by manufacturer
Eaton, NZM, NZM Molded Case Circuit Breaker 3-Pole 450A, Breaking Capacity 5 kA, Fixed
  • RS Stock No. 246-854
  • Mfr. Part No. 191607 NZMN3-MX450
Subtotal (1 unit)
PHP218,372.34(exc. VAT)
PHP218,372.34/unit
Stocked by manufacturer
Socomec 32A Tag Fuse NH00 1kV
  • RS Stock No. 252-5300
  • Mfr. Part No. 170M2675
Subtotal (1 pack of 6 units)
PHP37,523.88(exc. VAT)
PHP6,253.98/unit
In Stock
RS PRO, RS, RS71 Circuit Breaker 3-Pole 630A, Breaking Capacity 36 kA
  • RS Stock No. 683-387
Subtotal (1 unit)
PHP30,696.90(exc. VAT)
PHP30,696.90/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
Temporarily out of stock
Littelfuse 30A 10 x 38 mm, Panel Midget Fuse Block, 600V
  • RS Stock No. 878-3302
  • Mfr. Part No. L60030M2SQ
Subtotal (1 unit)
PHP1,253.55(exc. VAT)
PHP1,253.55/unit
In Stock
ABB 160A Centred Tag Fuse NH00 500V
  • RS Stock No. 779-9980
  • Mfr. Part No. OFAF00H160 1SCA022627R1710
Subtotal (1 unit)
PHP602.52(exc. VAT)
PHP602.52/unit
In Stock
WJ Furse Copper Earth Clamp Max. Conductor Size 50 mm² 25mm
  • RS Stock No. 153-2964
  • Mfr. Part No. 7TCA083610R0010 CT105-H
Subtotal (1 pack of 10 units)
PHP9,800.04(exc. VAT)
PHP980.004/unit
In Stock
RS Better World
Siemens Residual Current Circuit Breaker with Overload Protection, 6A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 243-6165
  • Mfr. Part No. 5SU1324-7FP06
Subtotal (1 unit)
PHP19,463.64(exc. VAT)
PHP19,463.64/unit
In Stock
Schneider Electric Acti9 iC60N Miniature Circuit Breaker, 2-Pole, 2A, Type C, 100V, 12 V, 130 V, 220 V, 240 V, 380 V,
  • RS Stock No. 734-9131
  • Mfr. Part No. A9F74202
Subtotal (1 unit)
PHP12,844.18(exc. VAT)
PHP12,844.18/unit
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