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

33477 Products showing for Fuses & Circuit Breakers

60 of 999+
In Stock
Phoenix Contact Busbar
  • RS Stock No. 290-1258
  • Mfr. Part No. 0402174
Each
PHP1,469.56(exc. VAT)
In Stock
Littelfuse SMD Non Resettable Fuse 3A, 250V
  • RS Stock No. 895-1735
  • Mfr. Part No. 0476003.MR
Each (In a Pack of 10)
PHP93.456(exc. VAT)
In Stock
Europa 3 Phase Distribution Board, 18 Way, 125 A
  • RS Stock No. 849-6415
  • Mfr. Part No. TPN06
Each
PHP24,723.64(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 20A Curve C, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-901
  • Mfr. Part No. A9K02320
Each
PHP1,572.58(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 63A Curve B, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-871
  • Mfr. Part No. A9K01363
Each
PHP1,718.67(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 25 kA
  • RS Stock No. 209-6958
  • Mfr. Part No. 3VA1050-3ED32-0AA0
Each
PHP27,732.71(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0215
  • Mfr. Part No. 1SDA066806R1 XT1B 160 TMD 80A FF
Each
PHP18,828.69(exc. VAT)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 40kA, 1000V (Volts), DIN Rail Mount
  • RS Stock No. 131-657
  • Mfr. Part No. 2910369
Each
PHP12,752.49(exc. VAT)
In Stock
Eaton 700A Centred Tag Fuse, NH2, 690V
  • RS Stock No. 182-1773
  • Mfr. Part No. 170M5813D
Each
PHP26,913.21(exc. VAT)
In Stock
RS PRO Industrial Surge Protector, 30kA, 300 V, DIN Rail Mount
  • RS Stock No. 101-753
Each
PHP4,799.96(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 237-6231
  • Mfr. Part No. 1SDA067074R1 XT2N 160 Ekip LSIG 63A FF
Each
PHP101,734.35(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 220A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 212-0272
  • Mfr. Part No. LV433501
Each
PHP137,606.24(exc. VAT)
In Stock
ASSMANN WSW Surge Protector, 10kV, DIN Rail Mount
  • RS Stock No. 649-587
  • Mfr. Part No. DN-95421
Each
PHP2,916.10(exc. VAT)
In Stock
Littelfuse 175A Grey, White CF Car Fuse, 58V dc
  • RS Stock No. 337-7965
  • Mfr. Part No. 155.0892.6171
Each
PHP640.81(exc. VAT)
In Stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-9404
  • Mfr. Part No. C10B3TM100
Each
PHP41,570.82(exc. VAT)
In Stock
RS PRO Single Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-802
Each
PHP5,485.41(exc. VAT)
Temporarily out of stock
Better World
Siemens 3VA92 RCD, 250A, 3 Pole, Type A
  • RS Stock No. 210-9326
  • Mfr. Part No. 3VA9213-0RL20
Each
PHP104,348.58(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 80A, Fixed Mount
  • RS Stock No. 260-7563
  • Mfr. Part No. C11E3TM080L
Each
PHP29,198.64(exc. VAT)
In Stock
Siemens 125A NH Fuse, NH00, 500V ac
  • RS Stock No. 397-430
  • Mfr. Part No. 3NA6832
Each (In a Pack of 3)
PHP612.423(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 500A, Fixed Mount
  • RS Stock No. 250-4185
  • Mfr. Part No. 1SDA054461R1
Each
PHP257,610.21(exc. VAT)
Results per page
1
60
1674

Related links