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

33493 Products showing for Fuses & Circuit Breakers

1629 of 999+
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3623
  • Mfr. Part No. 3VA2010-8KP42-0AA0
Each
PHP166,151.66(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9557
  • Mfr. Part No. 3VA10104ED360AA0
Each
PHP29,471.96(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 127-501
  • Mfr. Part No. 183357 IZMX16B3-P08F-1
Each
PHP486,817.30(exc. VAT)
Schurter CBE Cover for use with TA45
  • RS Stock No. 269-3824
  • Mfr. Part No. 4430.0582
Each
PHP161.08(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3971
  • Mfr. Part No. 3VA2110-7HK36-0AA0
Each
PHP61,831.11(exc. VAT)
Schurter SMD Non Resettable Fuse 8A, 32 V ac, 63V dc
  • RS Stock No. 703-2776P
  • Mfr. Part No. 3413.0327.22
Each (Supplied on a Reel)
PHP27.621(exc. VAT)
Eaton 224A NH Fuse, 63 x 40 x 150mm, 400V ac
  • RS Stock No. 255-242
  • Mfr. Part No. 224NHG1B-400
1 Pack of 3
PHP2,057.48(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7864
  • Mfr. Part No. C25B3TM160
Each
PHP89,668.97(exc. VAT)
Schurter SMD Non Resettable Fuse 1.5A, 125V ac/dc
  • RS Stock No. 733-4870P
  • Mfr. Part No. 3404.0115.22
Each (Supplied on a Reel)
PHP42.062(exc. VAT)
SIBA SMD Non Resettable Fuse 250mA, 250V
  • RS Stock No. 736-2617P
  • Mfr. Part No. 160000.0,25
Each (Supplied on a Reel)
PHP103.688(exc. VAT)
ABB 25A Tag Fuse, 135 x 30 x 65mm, 500V
  • RS Stock No. 250-4418
  • Mfr. Part No. 1SCA022697R6500
1 Box of 3
PHP4,884.43(exc. VAT)
Siemens 230V (Volts) Push Button Circuit Trip
  • RS Stock No. 213-2394
  • Mfr. Part No. 5TE4807
Each
PHP1,736.70(exc. VAT)
Wickmann SMD Non Resettable Fuse 20A, 250V
  • RS Stock No. 174-0699
  • Mfr. Part No. 0463020.ER
Each (In a Pack of 20)
PHP344.52(exc. VAT)
Phoenix Contact Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 207-2675
  • Mfr. Part No. 1065320
Each
PHP9,653.14(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4052
  • Mfr. Part No. 3VA2116-0HL46-0AA0
Each
PHP147,697.67(exc. VAT)
Wickmann 0.75A Resettable Fuse, 24V dc
  • RS Stock No. 174-0370
  • Mfr. Part No. 1812L075/24DR
1 Reel of 1500
PHP37,609.94(exc. VAT)
Eaton PC Board Non Resettable Fuse, Radial 2A, 250V ac
  • RS Stock No. 169-9552
  • Mfr. Part No. SS-5H-2A-BK
Each (In a Bag of 200)
PHP24.426(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 500A, Fixed Mount
  • RS Stock No. 260-8208
  • Mfr. Part No. C63F4TM500D1
Each
PHP323,340.62(exc. VAT)
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8769
  • Mfr. Part No. 5SU1356-6GV16
Each (In a Pack of 36)
PHP9,858.445(exc. VAT)
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8799
  • Mfr. Part No. 5SU1656-7KK10
Each
PHP10,487.23(exc. VAT)
1
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