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

33502 Products showing for Fuses & Circuit Breakers

1620 of 999+
Temporarily out of stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3314
  • Mfr. Part No. A9DQ2610
Each
PHP40,303.35(exc. VAT)
In Stock
Bourns SMD Non Resettable Fuse 7A, 24V dc
  • RS Stock No. 692-5071
  • Mfr. Part No. SF-1206S700-2
Each (In a Pack of 10)
PHP28.118(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 100A, Breaking Capacity 50 kA, Clip-On
  • RS Stock No. 178-7729
  • Mfr. Part No. LV426427
Each
PHP43,344.37(exc. VAT)
Temporarily out of stock
Siemens Siemens Busbar
  • RS Stock No. 627-388
  • Mfr. Part No. 8PQ6000-5BA52
Each
PHP56,497.75(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 630A, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 432-841
  • Mfr. Part No. C063H420FM
Each
PHP712,765.23(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P, Fixed Mount
  • RS Stock No. 250-4060
  • Mfr. Part No. 1SDA054324R1
Each
PHP196,326.12(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3806
  • Mfr. Part No. 3VA2040-8JP32-0AA0
Each
PHP117,222.93(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4605
  • Mfr. Part No. 3VA2140-0KP32-0AA0
Each
PHP130,715.02(exc. VAT)
Temporarily out of stock
Siemens Sentron Adapter for use with Busbar
  • RS Stock No. 228-8243
  • Mfr. Part No. 8US1213-4AQ03
Each
PHP19,153.12(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4645
  • Mfr. Part No. 3VA2140-7HK36-0AA0
Each
PHP62,969.07(exc. VAT)
Temporarily out of stock
Bourns 50A Tag Fuse, 38mm, 170V dc, 24.1mm
  • RS Stock No. 254-4222
  • Mfr. Part No. PF-NT2-50
Each (In a Box of 10)
PHP1,752.887(exc. VAT)
Temporarily out of stock
Eaton 224A NH Fuse, 71 x 54 x 150mm, 690V ac
  • RS Stock No. 255-000
  • Mfr. Part No. 224NHM2B-690
1 Pack of 3
PHP5,627.05(exc. VAT)
Temporarily out of stock
ABB Tmax XT Connection Kit for use with Tmax XT
  • RS Stock No. 237-6195
  • Mfr. Part No. 1SDA066985R1 XT2-XT4 W
Each
PHP6,853.64(exc. VAT)
Temporarily out of stock
Schurter SMD Non Resettable Fuse 1A, 125V ac/dc
  • RS Stock No. 173-7869
  • Mfr. Part No. 3410.0031.01
Each (In a Bag of 100)
PHP164.795(exc. VAT)
New product - Preorder today
FUSE 125V FA SAFE-T-PLUS FUSE .125A
  • RS Stock No. 552-981
  • Mfr. Part No. 0259.125M
1 Bag of 10
PHP3,064.38(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7507
  • Mfr. Part No. C10W45E100
Each
PHP222,190.59(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 4P 125A, Fixed Mount
  • RS Stock No. 260-7816
  • Mfr. Part No. C16N4TM125
Each
PHP87,513.82(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Fixed
  • RS Stock No. 122-505
  • Mfr. Part No. LV510561
Each
PHP14,470.69(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4L MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-6731
  • Mfr. Part No. 1SDA068388R1 XT4L 160 TMA 125A 3P+N FF
Each
PHP92,467.18(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4586
  • Mfr. Part No. 3VA2125-7MP36-0AA0
Each
PHP87,080.88(exc. VAT)
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