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

1644 of 999+
Eaton xEffect - FBHmV RCCB, 80A, 4 Pole, 30mA, Type A, 240/415V ac
  • RS Stock No. 123-209
  • Mfr. Part No. 170265 FBHMV-80/4/003-A
Each
PHP21,176.68(exc. VAT)
Eaton PC Board Non Resettable Fuse, Radial 1.6A, 250V ac
  • RS Stock No. 169-9551
  • Mfr. Part No. SS-5H-1-6A-BK
Each (In a Bag of 200)
PHP24.25(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 16A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 209-5066
  • Mfr. Part No. 3VA1196-6EE42-0AA0
Each
PHP28,000.34(exc. VAT)
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6146
  • Mfr. Part No. 1SDA066857R1 F XT3 3PCS
Each
PHP2,163.86(exc. VAT)
RS PRO SMD Non-Resettable Surface Mount Fuse 20A, 24V
  • RS Stock No. 252-2198
Each (In a Pack of 50)
PHP16.735(exc. VAT)
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 124-778
  • Mfr. Part No. 178807 KLV-12HWP-SF
Each
PHP9,915.69(exc. VAT)
Schurter PC Board Non Resettable Fuse, Axial 2A, 125V ac/dc
  • RS Stock No. 167-6276
  • Mfr. Part No. 7010.6380.13
Each (In a Pack of 5)
PHP73.114(exc. VAT)
Schurter SMD Non Resettable Fuse 6.3A, 125V ac/dc
  • RS Stock No. 733-4896P
  • Mfr. Part No. 3404.0122.22
Each (Supplied on a Reel)
PHP31.462(exc. VAT)
HENSEL ENYBOARD Distribution Board, 75 A
  • RS Stock No. 117-002
  • Mfr. Part No. KV FC 18
Each
PHP2,498.52(exc. VAT)
Littelfuse 0.5A Resettable Fuse, 13.2V dc
  • RS Stock No. 517-7240P
  • Mfr. Part No. MICROSMD050F-2
Each (Supplied on a Reel)
PHP18.612(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4020
  • Mfr. Part No. 3VA2110-8HL42-0AA0
Each
PHP83,266.79(exc. VAT)
HENSEL ENYSTAR Distribution Board, 8 Way, 63 A
  • RS Stock No. 117-198
  • Mfr. Part No. FP VN 0810 GB
Each
PHP71,605.09(exc. VAT)
Better World
Siemens 5SV3 RCCB, 80A, 2 Pole, 300mA, Type A, 230V ac
  • RS Stock No. 211-9687
  • Mfr. Part No. 5SV3617-6KL
Each
PHP28,876.39(exc. VAT)
Siemens SENTRON Option Plug
  • RS Stock No. 277-0907
  • Mfr. Part No. 3WA9111-0EB20
Each
PHP9,975.88(exc. VAT)
Schurter SMD Non Resettable Fuse 1.25A, 125 V dc, 250V ac
  • RS Stock No. 736-0744P
  • Mfr. Part No. 3403.0167.24
Each (Supplied on a Reel)
PHP41.837(exc. VAT)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160
  • RS Stock No. 260-9354
  • Mfr. Part No. C103MG040
Each
PHP13,346.31(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9692
  • Mfr. Part No. 3VA11106GF460AA0
Each
PHP38,697.04(exc. VAT)
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 25 kA, Cable Mount
  • RS Stock No. 249-158
  • Mfr. Part No. 3VA6610-5HN36-0AA0
Each
PHP495,581.68(exc. VAT)
Schurter PC Board Non Resettable Fuse 250mA, 125V ac/dc
  • RS Stock No. 865-7799
  • Mfr. Part No. 0034.4213
Each (In a Pack of 10)
PHP44.935(exc. VAT)
Schneider Electric, ComPacT New generation MCCB 4P 100A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-152
  • Mfr. Part No. C25N47E100
Each
PHP491,704.06(exc. VAT)
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