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

Fuses - PCB
Fuses - PCB

35478 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric, ComPact New Generation, ComPacT NSX250F Molded Case Circuit Breaker 3-Pole 250A
  • RS Stock No. 254-6352
  • Mfr. Part No. C25F3
Subtotal (1 unit)
PHP48,391.35(exc. VAT)
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 3-Pole, 63A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0210
Subtotal (1 unit)
PHP1,255.28(exc. VAT)
In Stock
Eaton 440mA F Melamine Cartridge Fuse, 10 x 35 mm
  • RS Stock No. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Subtotal (1 pack of 5 units)
PHP19,869.76(exc. VAT)
In Stock
RS PRO 1 Phase Industrial Surge Protector, 50 kA, 1.25 kV, DIN Rail
  • RS Stock No. 101-801
Subtotal (1 unit)
PHP4,117.90(exc. VAT)
In Stock
RS PRO 1A AR Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 199-249
Subtotal (1 pack of 10 units)
PHP14,591.03(exc. VAT)
In Stock
Eaton 250A British Standard Fuse FM 690V ac, 85 mm
  • RS Stock No. 156-9083
  • Mfr. Part No. 250FM
Subtotal (1 unit)
PHP3,294.72(exc. VAT)
Stocked by manufacturer
Schneider Electric, ComPact New Generation, BDL36070 Molded Case Circuit Breaker 3-Pole 70A, Breaking Capacity 25 kA,
  • RS Stock No. 244-918
  • Mfr. Part No. BDL36070LU
Subtotal (1 unit)
PHP38,987.65(exc. VAT)
In Stock
Eaton 110A British Standard Fuse EET 700V, 71 mm
  • RS Stock No. 182-1807
  • Mfr. Part No. 110EET
Subtotal (1 unit)
PHP3,325.21(exc. VAT)
In Stock
ABB 2 Phase Industrial Surge Protector, 100 kA, 1.4 kV, DIN Rail
  • RS Stock No. 237-6640
  • Mfr. Part No. 2CTB803972R1200
Subtotal (1 unit)
PHP14,177.48(exc. VAT)
Temporarily out of stock
Contactum Contactum Contactum 3 Phase Distribution Board 125A 12 Way
  • RS Stock No. 201-0752
  • Mfr. Part No. DDB125PIR12
Subtotal (1 unit)
PHP23,973.34(exc. VAT)
In Stock
Eaton 100A Centred Tag Fuse 1.13 x 4.63 in 600V ac, 92.2 mm
  • RS Stock No. 773-3561
  • Mfr. Part No. LPJ-100SP
Subtotal (1 unit)
PHP13,530.45(exc. VAT)
In Stock
Eaton 80A Centred Tag Fuse NH000 690V
  • RS Stock No. 182-1835
  • Mfr. Part No. 170M1566D
Subtotal (1 unit)
PHP5,623.30(exc. VAT)
In Stock
Better World
Schneider Electric Industrial Surge Protector, 5 kA, DIN Rail
  • RS Stock No. 247-1960
  • Mfr. Part No. A9L20501
Subtotal (1 unit)
PHP15,627.73(exc. VAT)
In Stock
Eaton 700A Centred Tag Fuse NH2 690V ac
  • RS Stock No. 182-1773
  • Mfr. Part No. 170M5813D
Subtotal (1 unit)
PHP26,913.21(exc. VAT)
In Stock
Eaton 16A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8399P
  • Mfr. Part No. C10G16
Subtotal 10 units (supplied in a box)
PHP915.38(exc. VAT)
In Stock
Better World
Schneider Electric, PowerPact, PowerPacT Molded Case Circuit Breaker 3-Pole 400A, Breaking Capacity 100 kA
  • RS Stock No. 221-1096
  • Mfr. Part No. NLJF36400U31XTW
Subtotal (1 unit)
PHP308,416.18(exc. VAT)
In Stock
ABB S803 S803N Miniature Circuit Breaker, 3-Pole, 6A, Type C, 690V ac AC, 36 kA Breaking Capacity
  • RS Stock No. 141-005
  • Mfr. Part No. 2CCS893001R0064
Subtotal (1 unit)
PHP18,697.81(exc. VAT)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 16A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3344
  • Mfr. Part No. A9F54216
Subtotal (1 unit)
PHP7,683.12(exc. VAT)
Being discontinued
Phoenix Contact 1 Phase Surge Arrester, 80 A, 275 V ac, DIN Rail
  • RS Stock No. 129-560
  • Mfr. Part No. 2800103
Subtotal (1 unit)
PHP11,613.99(exc. VAT)
In Stock
RS PRO 3 Phase Industrial Surge Protector, 50 kA, 2 kV, DIN Rail
  • RS Stock No. 101-805
Subtotal (1 unit)
PHP7,422.37(exc. VAT)
1
2
3
1774
Results per page

Related links