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

33477 Products showing for Fuses & Circuit Breakers

55 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 1P 125A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9725
  • Mfr. Part No. 3VA1112-5ED16-0AA0
Each
PHP25,345.19(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-989
  • Mfr. Part No. 3VA5217-5EC31-0AA0
Each
PHP91,905.00(exc. VAT)
In Stock
Siemens 6A DII Diazed Fuse, E27 Thread Size, gG, 500V ac
  • RS Stock No. 396-174
  • Mfr. Part No. 5SB231
1 Pack of 5
PHP416.68(exc. VAT)
Temporarily out of stock
ABB Tmax Mechanical Interlock for use with Tmax T
  • RS Stock No. 237-5998
  • Mfr. Part No. 1SDA060685R1 MIR-HB T6
1 Box of 1
PHP40,466.00(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT Circuit breaker 4P 100A, Breaking Capacity 16 KA, Fixed Mount
  • RS Stock No. 119-469
  • Mfr. Part No. C11E44V100L
Each
PHP158,551.85(exc. VAT)
Temporarily out of stock
Eaton 6A Bolted Tag Fuse, F2, 550V ac
  • RS Stock No. 181-8530
  • Mfr. Part No. ESD6
1 Box of 20
PHP8,756.13(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 1A, 63V
  • RS Stock No. 252-2166
Each (On a Tape of 4000)
PHP9.826(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2L MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7418
  • Mfr. Part No. 1SDA067668R1 XT2L 160 TMA 125A 3P+N FF
Each
PHP62,872.32(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 6.3A, 250V ac
  • RS Stock No. 767-5068
Each (In a Pack of 10)
PHP23.806(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 3A Curve C, 440V AC, 180V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3499
  • Mfr. Part No. A9F74303
Each
PHP16,377.61(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 500A 3VA, 4 channels
  • RS Stock No. 156-751
  • Mfr. Part No. 3VA2450-7KP42-0AA0
Each
PHP382,909.52(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller IZMX/INX Circuit breaker 3P 3.2kA, Breaking Capacity 105 kA, Fixed Mount
  • RS Stock No. 246-498
  • Mfr. Part No. 183724 IZMX40H3-V32F-1
Each
PHP1,423,111.19(exc. VAT)
In Stock
ABB Busbar Cover
  • RS Stock No. 478-2330
  • Mfr. Part No. GHV0360505R0001 SZ-BSK5
Each
PHP229.75(exc. VAT)
Limited stock
Littelfuse 7A Resettable Fuse, 16V
  • RS Stock No. 517-6950
  • Mfr. Part No. RGEF700
Each (In a Pack of 5)
PHP35.542(exc. VAT)
In Stock
ABB S201L MCB, 1P, 16A Curve C, 230/400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-770
  • Mfr. Part No. 2CDS241701R0164
Each
PHP1,533.75(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 125A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-8093
  • Mfr. Part No. LV426158
Each
PHP21,323.72(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7757
  • Mfr. Part No. C16F3MA150
Each
PHP66,802.25(exc. VAT)
In Stock
ABB, Formula DSA MCCB 1P 125A, Fixed Mount
  • RS Stock No. 237-6139
  • Mfr. Part No. 1SDA066696R1
Each
PHP12,056.83(exc. VAT)
In Stock
Schneider Electric Single Phase Surge Arrester, 65kA, 350V (Volts), Clip-On Mount
  • RS Stock No. 130-970
  • Mfr. Part No. A9L65301
Each
PHP71,754.33(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 500A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9798
  • Mfr. Part No. LV563315
Each
PHP140,990.95(exc. VAT)
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