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

244 of 999+
Temporarily out of stock
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-750
  • Mfr. Part No. A9TDFD610
Each
PHP37,262.98(exc. VAT)
In Stock
Bourns SMD Non Resettable Fuse 3.15A, 24V dc
  • RS Stock No. 692-4987
  • Mfr. Part No. SF-0603F315-2
Each (In a Pack of 10)
PHP29.225(exc. VAT)
Temporarily out of stock
Mersen 200A NH Fuse, NH1, 500V ac
  • RS Stock No. 375-9682
  • Mfr. Part No. P218766
Each
PHP1,473.44(exc. VAT)
In Stock
Mersen 125A Bolted Tag Fuse, A4, 240 V dc, 415V ac, 94mm
  • RS Stock No. 178-1042
  • Mfr. Part No. W1019195 / BTCP42V125
Each (In a Pack of 10)
PHP1,705.27(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 4 channels
  • RS Stock No. 156-851
  • Mfr. Part No. 3VA2325-7HK42-0AA0
Each
PHP219,859.37(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-7370
  • Mfr. Part No. 1SDA067581R1 XT2S 160 TMA 160A 3P+N FF
Each
PHP57,068.17(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX250
  • RS Stock No. 260-7850
  • Mfr. Part No. C254TM200
Each
PHP52,666.93(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board
  • RS Stock No. 117-141
  • Mfr. Part No. KV ES 1
Each
PHP2,648.26(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 1.25kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 345-327
  • Mfr. Part No. C125N45AFM
Each
PHP1,063,269.77(exc. VAT)
In Stock
Rittal Earthing Strap 10mm Diameter
  • RS Stock No. 265-1243
  • Mfr. Part No. 2565110
Each (In a Pack of 5)
PHP530.832(exc. VAT)
In Stock
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type AC
  • RS Stock No. 540-1638
  • Mfr. Part No. 2CSF202006R1630 FH202 AC-63/0,03
Each
PHP5,208.97(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9640
  • Mfr. Part No. 3VA11103ED220AA0
Each
PHP22,569.46(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY5 MCB, 4P, 1.6A Curve C, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-514
  • Mfr. Part No. 5SY5415-7
Each
PHP29,422.85(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY5 MCB, 4P, 500mA Curve C, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-328
  • Mfr. Part No. 5SY5405-7
Each
PHP29,422.85(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY5 MCB, 4P, 20A Curve B, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-374
  • Mfr. Part No. 5SY5420-6
Each
PHP19,737.53(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 16A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0212
  • Mfr. Part No. 1SDA066799R1 XT1B 160 TMD 16A FF
Each
PHP18,335.58(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0250
  • Mfr. Part No. 1SDA067397R1 XT1C 160 TMD 100A FF
Each
PHP16,399.25(exc. VAT)
Temporarily out of stock
Schneider Electric EasyPact CVS100...250 Thermal Circuit Breaker - EasyPact CVS 4 Pole 440V ac Voltage Rating Fixed,
  • RS Stock No. 124-534
  • Mfr. Part No. LV510314
Each
PHP25,101.16(exc. VAT)
Temporarily out of stock
Eaton 6A Tag Fuse, 12 x 47mm, 240V
  • RS Stock No. 229-156
  • Mfr. Part No. STD6
1 Pack of 20
PHP10,422.10(exc. VAT)
Currently unavailable
Schurter SMD Non Resettable Fuse 1.5A, 32 V ac, 63V dc
  • RS Stock No. 665-7352
  • Mfr. Part No. 3413.0117.22.
Each (In a Pack of 10)
PHP33.996(exc. VAT)
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