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

1629 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB 4P 200A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-293
  • Mfr. Part No. 3VA5220-6GC41-0AA0
Each
PHP171,758.14(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3628
  • Mfr. Part No. 3VA2010-8KQ46-0AA0
Each
PHP169,980.90(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4827
  • Mfr. Part No. 3VA2563-7HN42-0AA0
Each
PHP321,636.20(exc. VAT)
Temporarily out of stock
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)
Temporarily out of stock
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)
Temporarily out of stock
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)
In Stock
Schurter CBE Cover for use with TA45
  • RS Stock No. 269-3824
  • Mfr. Part No. 4430.0582
Each
PHP161.08(exc. VAT)
Temporarily out of stock
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)
Temporarily out of stock
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)
Temporarily out of stock
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)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7864
  • Mfr. Part No. C25B3TM160
Each
PHP89,668.97(exc. VAT)
In Stock
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)
Temporarily out of stock
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)
Temporarily out of stock
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)
Temporarily out of stock
Siemens 230V (Volts) Push Button Circuit Trip
  • RS Stock No. 213-2394
  • Mfr. Part No. 5TE4807
Each
PHP1,736.70(exc. VAT)
In Stock
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)
Temporarily out of stock
Phoenix Contact Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 207-2675
  • Mfr. Part No. 1065320
Each
PHP9,653.14(exc. VAT)
Temporarily out of stock
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)
Temporarily out of stock
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)
Temporarily out of stock
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)
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