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
Fuses - PCB
Fuses - PCB

33502 Products showing for Fuses & Circuit Breakers

209 of 999+
In Stock
RS PRO 5A Tan Blade Car Fuse, 32V dc
  • RS Stock No. 563-778
Each (In a Pack of 10)
PHP34.044(exc. VAT)
In Stock
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS Stock No. 123-306
  • Mfr. Part No. 170802 FRBM6-C40/2/003-LIA
Each
PHP13,104.54(exc. VAT)
In Stock
ABB RCBO, 40A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 136-7810
  • Mfr. Part No. 2CSR255051R1404 DSE201 C40 AC30 - N Blue
Each
PHP5,967.80(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 914-4051
  • Mfr. Part No. 2CSR255051R1204 DSE201 C20 AC30 - N Blue
Each
PHP5,769.04(exc. VAT)
Temporarily out of stock
Eaton MCB, 1P, 2A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-527
  • Mfr. Part No. 101245 PLI-B2/1
Each
PHP1,634.83(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 iID RCCB, 100A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS Stock No. 654-690
  • Mfr. Part No. A9R21491
Each
PHP52,857.15(exc. VAT)
Temporarily out of stock
Siemens SENTRON Motor Operator for use with 3VA2 100/160/250
  • RS Stock No. 216-4374
  • Mfr. Part No. 3VA9267-0HA10
Each
PHP52,018.83(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 iID RCCB, 25A, 4 Pole, 30mA, Type A-SI, 380 → 415V ac
  • RS Stock No. 654-743
  • Mfr. Part No. A9R61425
Each
PHP35,240.42(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3578
  • Mfr. Part No. 3VA2010-7HN42-0AA0
Each
PHP104,719.21(exc. VAT)
In Stock
ABB 220 → 240 V ac, 220 → 250V dc Shunt Trip Shunt trip for use with Tmax XT1, Tmax XT2, Tmax XT3, Tmax
  • RS Stock No. 831-9197
  • Mfr. Part No. 1SDA066325R1
Each
PHP4,242.88(exc. VAT)
Temporarily out of stock
Schneider Electric A9R RCCB, 40A, 2 Pole, 300mA, Type A, 220 → 240V ac
  • RS Stock No. 654-094
  • Mfr. Part No. A9R24240
Each
PHP16,806.84(exc. VAT)
In Stock
ABB 12 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Each
PHP3,046.17(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM-125 Type A RCCB, 125A, 2 Pole, 300mA, 240V ac
  • RS Stock No. 123-391
  • Mfr. Part No. 171172 FRCMM-125/2/03-S/A
Each
PHP79,380.59(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM-125 Type A RCCB, 125A, 2 Pole, 500mA, Type A, 240V ac
  • RS Stock No. 123-385
  • Mfr. Part No. 171167 FRCMM-125/2/05-A
Each
PHP45,941.29(exc. VAT)
Temporarily out of stock
Schneider Electric A9R RCCB, 40A, 4 Pole, 30mA, Type AC, 380 → 415V ac
  • RS Stock No. 655-156
  • Mfr. Part No. A9R41440
Each
PHP18,946.84(exc. VAT)
Temporarily out of stock
32A NH Fuse, 51 x 21 x 79mm, 400V ac
  • RS Stock No. 263-288
  • Mfr. Part No. 32NHG000BI-400
1 Pack of 3
PHP1,070.26(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 272-0176
  • Mfr. Part No. 3VA1563-6GF42-0AA0
Each
PHP285,356.52(exc. VAT)
In Stock
Mersen 80A NH Fuse, NH000, 500V ac
  • RS Stock No. 136-0585
  • Mfr. Part No. Y216543C / NH000GG50V80/3
Each
PHP309.13(exc. VAT)
In Stock
Schneider Electric Spreader for use with ComPact NS630b → 1600, MasterPact NT Circuit Breaker
  • RS Stock No. 247-1848
  • Mfr. Part No. 33623
Each
PHP33,361.02(exc. VAT)
Temporarily out of stock
xEnergy Safety Ci Distribution Board Enclosure, 2 Way, 630 A
  • RS Stock No. 252-505
  • Mfr. Part No. 194575 CI44-S60-630/3-2XNH00
Each
PHP46,049.99(exc. VAT)
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