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

142 of 999+
ABB F200 RCCB, 63A, 4 Pole, 500mA, Type B, 400V ac
  • RS Stock No. 176-9622
  • Mfr. Part No. 2CSF204592R4630 F204 B-63/0,5
Each
PHP90,319.73(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 400A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 341-224
  • Mfr. Part No. C50F4TM400D3
Each
PHP365,385.19(exc. VAT)
RS PRO 10A Red Blade Car Fuse, 32V dc
  • RS Stock No. 563-485
Each (In a Pack of 10)
PHP59.626(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • RS Stock No. 156-805
  • Mfr. Part No. 3VA2440-5HM32-0AA0
Each
PHP207,317.17(exc. VAT)
RS PRO PC Board Non Resettable Fuse, Axial 12A, 32V ac/dc
  • RS Stock No. 764-9504
Each (In a Pack of 10)
PHP31.217(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-255
  • Mfr. Part No. 3VA6210-8JQ31-0AA0
Each
PHP274,182.77(exc. VAT)
Eaton 63A Fuse Holder for 126 x 62 x 36mm Fuse, 1P, 690V
  • RS Stock No. 261-317
  • Mfr. Part No. CM63FW
1 Pack of 10
PHP27,065.48(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 1kA, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-280
  • Mfr. Part No. C100N450FM
Each
PHP419,332.28(exc. VAT)
Eaton RCBO, 25A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBdM Range
  • RS Stock No. 121-245
  • Mfr. Part No. 168227 FRBDM-D25/2/01-G/A
Each
PHP15,439.66(exc. VAT)
Miniature circuit breaker, 32 A, 1p
  • RS Stock No. 611-275
  • Mfr. Part No. PLSM-D32-Q-MW
Each
PHP2,786.73(exc. VAT)
Siemens 10A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 622-1051
  • Mfr. Part No. 5SE2310
1 Pack of 10
PHP887.40(exc. VAT)
ABB SACE Emax 2 Fixed Part for use with Circuit Breaker
  • RS Stock No. 231-9320
  • Mfr. Part No. 1SDA073916R1 E4.2 W FP Iu=4000
Each
PHP317,805.35(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3777
  • Mfr. Part No. 3VA2110-6HN32-0AA0
Each
PHP59,847.97(exc. VAT)
Better World
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3308
  • Mfr. Part No. A9DP6616
Each
PHP26,801.38(exc. VAT)
Legrand RCCB, 40A, 2 Pole, 30mA, Type F, 230V
  • RS Stock No. 266-1361
  • Mfr. Part No. 411644
Each
PHP18,294.66(exc. VAT)
Eaton Eaton Moeller 1 Phase Busbar, 1000V, 26.4mm Pitch
  • RS Stock No. 123-042
  • Mfr. Part No. 171137 Z-BB/UL25/1P1MU+AUX/37
Each
PHP10,952.46(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 2A, 125V ac/dc
  • RS Stock No. 541-3287
  • Mfr. Part No. 251002.NRT1L
Each (In a Pack of 10)
PHP64.754(exc. VAT)
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 100mA, Type A, 240/415V ac
  • RS Stock No. 123-215
  • Mfr. Part No. 170276 FRCMM-80/2/01-A
Each
PHP26,134.29(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 16A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9719
  • Mfr. Part No. LV510310
Each
PHP29,097.94(exc. VAT)
ABB S803S MCB, 3P, 63A, UC-B, 750V DC, 50 kA Breaking Capacity
  • RS Stock No. 141-273
  • Mfr. Part No. 2CCS863001R1635
Each
PHP31,008.38(exc. VAT)
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