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

33476 Products showing for Fuses & Circuit Breakers

1661 of 999+
In Stock
Schurter SMD Non Resettable Fuse 7A, 32 V ac, 63V dc
  • RS Stock No. 173-7922
  • Mfr. Part No. 3413.0326.22
1 Reel of 1000
PHP19,998.00(exc. VAT)
Temporarily out of stock
Eaton 25A NH Fuse, 51 x 21 x 79mm, 400V ac
  • RS Stock No. 254-934
  • Mfr. Part No. 25NHG000BI-400
1 Pack of 3
PHP1,067.04(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 32A, Fixed Mount
  • RS Stock No. 260-7572
  • Mfr. Part No. C11E4TM032L
Each
PHP34,537.12(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-896
  • Mfr. Part No. 3VA5212-7EC41-2AA0
Each
PHP141,553.92(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA
  • RS Stock No. 209-6928
  • Mfr. Part No. 3VA2140-6HN46-0AA0
Each
PHP72,339.13(exc. VAT)
Stock information currently inaccessible
Littelfuse SMD Non Resettable Fuse 80mA, 125V
  • RS Stock No. 738-2964
  • Mfr. Part No. 0451.080MRL
Each (In a Pack of 10)
PHP241.738(exc. VAT)
Currently unavailable
Sato Parts F-700 Series Fuse Cover for 6.3 x 32 mm, 6.35 x 30 x 6.35 x 31.8 mm Fuse
  • RS Stock No. 229-4971
  • Mfr. Part No. F-700-FCL
Each
PHP375.97(exc. VAT)
Temporarily out of stock
Legrand DX3 RCD, 10A, 1+N Pole, 300mA, Type C
  • RS Stock No. 731-9913
  • Mfr. Part No. 4 107 24
Each
PHP26,544.67(exc. VAT)
In Stock
Bourns Thermal Fuse +82°C 60 A, 28V
  • RS Stock No. 258-6396
  • Mfr. Part No. SA82SB0
Each (In a Pack of 10)
PHP45.01(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 218-1888
  • Mfr. Part No. 8GB5005-5KM
Each
PHP1,409.39(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-951
  • Mfr. Part No. 3VA5212-5GC41-2AA0
Each
PHP111,753.19(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9665
  • Mfr. Part No. 3VA11104GE420AA0
Each
PHP35,995.07(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEG1 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0189
  • Mfr. Part No. IEG1-1-72-10.0-A-21-V
1 Box of 5
PHP14,719.32(exc. VAT)
Temporarily out of stock
Eaton 250A NH Fuse, 63 x 40 x 135mm, 400V ac
  • RS Stock No. 254-762
  • Mfr. Part No. 250NHG1BI-400
1 Pack of 3
PHP2,350.23(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7294
  • Mfr. Part No. 1SDA067469R1 TMD 25-300 XT4 4p
Each
PHP43,725.78(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 1kA, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4783
  • Mfr. Part No. 3VA2510-6HM42-0AA0
Each
PHP573,708.78(exc. VAT)
Temporarily out of stock
Schneider Electric Acti 9 A9C MCB, 4P, 16A, 500V AC, 15 kA Breaking Capacity
  • RS Stock No. 276-1537
  • Mfr. Part No. A9C65416
Each
PHP43,221.29(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 63A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-266
  • Mfr. Part No. 170385 FRCMM-63/2/003-G/A
Each
PHP30,426.59(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 225A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-327
  • Mfr. Part No. 3VA5222-6GC41-0AA0
Each
PHP190,990.00(exc. VAT)
In Stock
Littelfuse Non-Resettable Wire Ended Fuse 375mA, 125V ac/dc
  • RS Stock No. 738-3012P
  • Mfr. Part No. 0473.375MAT1L
Each (Supplied in a Bag)
PHP96.624(exc. VAT)
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