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

119 of 999+
ABB Tmax XT Plug In Unit for use with XT1
  • RS Stock No. 236-6637
  • Mfr. Part No. 1SDA068185R1 XT1 P FP EF
Each
PHP22,486.89(exc. VAT)
Eaton xE?ect - FBHmV RCCB, 125A, 4 Pole, 500mA, Type A, 240/415V ac
  • RS Stock No. 121-125
  • Mfr. Part No. 170134 FBHMV-125/4/05-A
Each
PHP32,151.68(exc. VAT)
Better World
Schneider Electric TeSys Mounting Base for use with TeSys GV
  • RS Stock No. 211-2541
  • Mfr. Part No. GVAPP1
Each
PHP1,450.94(exc. VAT)
Hager NFN MCB, 4P, 25A Curve C, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4724
  • Mfr. Part No. NFN425
Each
PHP14,838.45(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 36 kA
  • RS Stock No. 210-1657
  • Mfr. Part No. 3VA1140-4EE42-0AA0
Each
PHP31,338.69(exc. VAT)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 63A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-312
  • Mfr. Part No. SE10C363
Each
PHP10,298.10(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-433
  • Mfr. Part No. 3VA6225-0HL31-0AA0
Each
PHP184,743.47(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 239-852
  • Mfr. Part No. 192264 NZMN3-PX250-SVE
Each
PHP218,393.17(exc. VAT)
Schneider Electric, ComPacT NSX Circuit breaker 3P 100A, Breaking Capacity 16 KA, Fixed Mount
  • RS Stock No. 119-282
  • Mfr. Part No. C11E34V100B
Each
PHP86,445.62(exc. VAT)
Better World
ABB, XT4H MCCB 4P 100A, Fixed Mount
  • RS Stock No. 236-6797
  • Mfr. Part No. 1SDA068538R1 XT4H 160 Ekip I 100A FF
Each
PHP91,378.98(exc. VAT)
Better World
ABB, XT2V MCCB 4P 100A, Fixed Mount
  • RS Stock No. 236-6541
  • Mfr. Part No. 1SDA068013R1 XT2V 160 Ekip I 100A FF
Each
PHP100,103.82(exc. VAT)
Siemens, SENTRON MCCB 4P 175A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-497
  • Mfr. Part No. 3VA5217-6GF41-2AA0
Each
PHP188,098.50(exc. VAT)
Siemens SENTRON 5SY4 MCB, 2P, 32A, Type A, 400V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 610-420
  • Mfr. Part No. 5SY4232-5
Each
PHP10,492.44(exc. VAT)
Schneider Electric ComPact Auxiliary Contact for use with NS630b to NS3200
  • RS Stock No. 275-6649
  • Mfr. Part No. 33004
Each
PHP4,820.64(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 1kA, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3813
  • Mfr. Part No. 3VA2510-6HN32-0AA0
Each
PHP301,155.17(exc. VAT)
HENSEL ENYSTAR Distribution Board, 6 Way, 63 A
  • RS Stock No. 117-248
  • Mfr. Part No. FP VN 0612 GB
Each
PHP152,133.08(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 6 kA, Withdrawable
  • RS Stock No. 243-015
  • Mfr. Part No. 191539 NZMS3-4-VX630-T-AVE
Each
PHP402,476.84(exc. VAT)
Siemens 50A Tag Fuse, NH2, 400V ac
  • RS Stock No. 144-076
  • Mfr. Part No. 3NA6220-4
1 Pack of 3
PHP4,090.80(exc. VAT)
Hager BD RCD, 63A, 2 Pole, 30mA, Type AC
  • RS Stock No. 144-4842
  • Mfr. Part No. BD264
Each
PHP41,273.35(exc. VAT)
Schneider Electric Multi9 M9F1 MCB, 3P, 25A Curve D, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-131
  • Mfr. Part No. M9F12325
Each
PHP15,036.78(exc. VAT)
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