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

289 of 999+
Temporarily out of stock
Eaton RCBO, 16A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBdM Range
  • RS Stock No. 121-243
  • Mfr. Part No. 168225 FRBDM-D16/2/01-G/A
Each
PHP13,707.08(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 272-0186
  • Mfr. Part No. 3VA1580-5MH32-0AA0
Each
PHP185,069.36(exc. VAT)
Temporarily out of stock
Siemens ALPHA Feeder Terminal for use with N Busbar
  • RS Stock No. 203-8790
  • Mfr. Part No. 8WA2868
Each (In a Pack of 50)
PHP99.065(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 55 kA
  • RS Stock No. 209-6803
  • Mfr. Part No. 3VA1132-5EF32-0AA0
Each
PHP25,448.97(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 1+N, 500mA Curve D, 240V AC, 72V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-687
  • Mfr. Part No. 2CDS381103R0981
Each
PHP18,618.96(exc. VAT)
In Stock
ABB SU200 M MCB, 4P, 63A Curve C, 240V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-713
  • Mfr. Part No. 2CDS274337R0634
Each
PHP55,345.50(exc. VAT)
Temporarily out of stock
Hager Hager MMN Circuit Breaker, 4P, 630mA, Type AC, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-887
  • Mfr. Part No. MMN400
Each
PHP45,176.93(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board, 72 Way
  • RS Stock No. 211-6086
  • Mfr. Part No. 8GB1374-3
Each
PHP38,188.50(exc. VAT)
Temporarily out of stock
RCBO, 16A Current Rating, 1+N Poles, 100mA Trip Sensitivity, Type D, xEffect Range
  • RS Stock No. 252-763
  • Mfr. Part No. 193519 FRBmM-D16/1N/01-F
Each
PHP15,395.29(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 3+N, 500mA Curve D, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 203-809
  • Mfr. Part No. 2CDS383103R0981
Each
PHP49,453.99(exc. VAT)
Temporarily out of stock
Siemens SENTRON Locking Kit
  • RS Stock No. 277-0854
  • Mfr. Part No. 3WA9111-0BA37
Each
PHP7,481.98(exc. VAT)
In Stock
Hager RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type AC
  • RS Stock No. 251-2017
  • Mfr. Part No. ADC716F
Each
PHP16,516.00(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Remote Control Power Socket Block, Canalis KN Series
  • RS Stock No. 219-8905
  • Mfr. Part No. KNT63ZT1
Each
PHP4,940.80(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 8A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-198
  • Mfr. Part No. 2CDS273061R0407
Each
PHP37,820.93(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 125A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6227
  • Mfr. Part No. 5SU1624-6WK82
Each
PHP177,670.84(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3VA9 Wire Connector for use with 3VA2 100/160/250
  • RS Stock No. 218-1797
  • Mfr. Part No. 3VA9123-0KP00
Each
PHP21,235.64(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 4P 100A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 357-131
  • Mfr. Part No. BDL46100LU
Each
PHP86,418.16(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 25A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-214
  • Mfr. Part No. 2CDS273061R0254
Each
PHP32,883.95(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-503
  • Mfr. Part No. LV510547
Each
PHP15,009.96(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 230-001
  • Mfr. Part No. 107846 NZMH2-VE100-BT-NA
Each
PHP113,411.96(exc. VAT)
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