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

33476 Products showing for Fuses & Circuit Breakers

52 of 999+
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 500A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9798
  • Mfr. Part No. LV563315
Each
PHP140,990.95(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4109
  • Mfr. Part No. 3VA2116-7KP32-0AA0
Each
PHP148,323.41(exc. VAT)
Temporarily out of stock
ABB RCBO, 63A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5074
  • Mfr. Part No. 2CSR253001R1635
Each
PHP27,314.86(exc. VAT)
Temporarily out of stock
Siemens 800A Centred Tag Fuse, NH3, 690V
  • RS Stock No. 210-6969
  • Mfr. Part No. 3NE1438-2
Each (In a Pack of 3)
PHP23,368.757(exc. VAT)
In Stock
Schneider Electric Earth Bar L. 450mm x W. 13mm x H. 12mm
  • RS Stock No. 276-8807
  • Mfr. Part No. LVS04200
Each
PHP5,618.38(exc. VAT)
Currently unavailable
L-Com Surge Protector, DIN Rail Mount
  • RS Stock No. 297-413
  • Mfr. Part No. ELPD-CAT6
Each
PHP7,945.14(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 160A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9764
  • Mfr. Part No. LV516463
Each
PHP61,618.87(exc. VAT)
In Stock
ABB S301 MCB, 1P, 4A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-261
  • Mfr. Part No. 2CDS381001R0044
Each
PHP8,509.12(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric 690V ac Circuit Trip for use with Compact NSX 100 Circuit Breakers
  • RS Stock No. 212-0228
  • Mfr. Part No. LV429047
Each
PHP8,669.54(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 25A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 345-253
  • Mfr. Part No. BDF26025
Each
PHP41,513.03(exc. VAT)
In Stock
Eaton RCD, 20A, 2 Pole, 30mA, Type C
  • RS Stock No. 922-8733
  • Mfr. Part No. 236245 PKNM-20/1N/C/003-MW
Each
PHP11,507.51(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 2P 50A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 345-309
  • Mfr. Part No. C10F2TM050
Each
PHP46,176.34(exc. VAT)
Temporarily out of stock
Eaton BBA Busbar Adapter Busbar, 690V
  • RS Stock No. 240-452
  • Mfr. Part No. 101480 BBA2L-63
Each
PHP5,454.33(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC Single Pole 250V ac Voltage Rating DIN Rail, 3A Current Rating
  • RS Stock No. 135-489
  • Mfr. Part No. 0914659
1 Pack of 6
PHP29,387.67(exc. VAT)
Temporarily out of stock
ABB Tmax XT Conversion Kit for use with Tmax XT
  • RS Stock No. 237-6037
  • Mfr. Part No. 1SDA066282R1 P MP XT4 3P
Each
PHP5,289.75(exc. VAT)
In Stock
Eaton 125A NH Fuse, NH00, 690V ac
  • RS Stock No. 181-8733
  • Mfr. Part No. 125NHG00B-690
Each
PHP573.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB 3P 40A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 219-8306
  • Mfr. Part No. BGL36040LU
Each
PHP32,687.95(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 2P, 40A Curve B, 500V AC, 6000 A Breaking Capacity
  • RS Stock No. 341-105
  • Mfr. Part No. A9F76240
Each
PHP16,557.27(exc. VAT)
In Stock
Better World
Schneider Electric Industrial Surge Protection, 5kA, DIN Rail Mount
  • RS Stock No. 247-1960
  • Mfr. Part No. A9L20501
Each
PHP15,627.73(exc. VAT)
Limited stock
Limitor Thermal Fuse +100°C 2.5 A, 250V ac
  • RS Stock No. 204-7449
  • Mfr. Part No. Q82 A 100 05 100
Each
PHP444.27(exc. VAT)
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