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

266 of 999+
In Stock
Eaton RCBO, 32A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-631
  • Mfr. Part No. 170773 FRBMM-C32/3/003-A
Each
PHP14,385.41(exc. VAT)
In Stock
Better World
Schneider Electric, PowerPact MCCB 3P 100A, Breaking Capacity 14 kA, Fixed Mount
  • RS Stock No. 212-0149
  • Mfr. Part No. BDL36100LU
Each
PHP58,308.09(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 2A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
Each
PHP5,978.13(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 110A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-424
  • Mfr. Part No. 3VA5211-6EC31-2AA0
Each
PHP117,114.88(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-677
  • Mfr. Part No. 3VA5212-5GC41-0AA0
Each
PHP99,994.49(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 4P, 25A Curve C, 400V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-567
  • Mfr. Part No. 5SY8625-7
Each
PHP17,829.81(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 50A, Fixed Mount
  • RS Stock No. 254-6314
  • Mfr. Part No. C11F3TM050L
Each
PHP31,432.78(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 320A, Breaking Capacity 9 kA, Plug In
  • RS Stock No. 231-231
  • Mfr. Part No. 109700 NZMH3-4-A320
Each
PHP230,562.78(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7755
  • Mfr. Part No. C16F3D
Each
PHP36,713.19(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 63A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-182
  • Mfr. Part No. 2CDS273001R0607
Each
PHP41,948.27(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 12.5A, Fixed Mount
  • RS Stock No. 260-9458
  • Mfr. Part No. C10H3MA013
Each
PHP51,857.57(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4332 MCB, 3P, 32A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 300-080
  • Mfr. Part No. 5SJ4332-8HG41
Each
PHP21,846.65(exc. VAT)
Temporarily out of stock
Eaton 10A Tag Fuse, 14 x 50mm, 500V
  • RS Stock No. 231-485
  • Mfr. Part No. 10D16R
1 Pack of 10
PHP3,503.74(exc. VAT)
Temporarily out of stock
Siemens Busbar Support, 8US1998 Series
  • RS Stock No. 156-873
  • Mfr. Part No. 8US1998-7CA08
1 Pack of 10
PHP3,896.81(exc. VAT)
Temporarily out of stock
Siemens 1 Phase Surge Arrester, 40kA, 3.7kV, DIN Rail Mount
  • RS Stock No. 269-9751
  • Mfr. Part No. 5SD7483-0KK01
Each
PHP7,834.82(exc. VAT)
Temporarily out of stock
ABB Emax 2, Tmax XT Trip Indicator for use with Circuit Breaker
  • RS Stock No. 231-9308
  • Mfr. Part No. 2CCS500900R0181 ZLS725 Intermediate pie
Each
PHP3,365.60(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 4P, 10A Curve D, 400V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-688
  • Mfr. Part No. 5SY7410-8
Each
PHP17,756.44(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0301
  • Mfr. Part No. 8GK1062-3KK21
Each
PHP65,853.63(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1737
  • Mfr. Part No. 3VA2340-6HL32-0AA0
Each
PHP103,649.06(exc. VAT)
Temporarily out of stock
Hager 72 Way Plastic Consumer Unit, IP30 FD
  • RS Stock No. 144-4611
  • Mfr. Part No. FD32AN
Each
PHP29,193.46(exc. VAT)
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