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

171 of 999+
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6506
  • Mfr. Part No. 1SDA067964R1 XT2L 160 Ekip LSI 160A FF
Each
PHP132,216.54(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 654-999
  • Mfr. Part No. C12B6TM160L
Each
PHP78,057.83(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-148
  • Mfr. Part No. 113369 NZMH2-4-A50-SVE
Each
PHP61,801.09(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-471
  • Mfr. Part No. 3VA5110-5EC41-0AA0
Each
PHP46,204.26(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7315
  • Mfr. Part No. 1SDA067494R1 MA 100 Im=600...1000 XT4 3
Each
PHP34,063.17(exc. VAT)
ABB SU 200 M Circuit Breaker, 2P, 25A Curve K, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6396
  • Mfr. Part No. 2CDS272337R0517
Each
PHP8,280.17(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 229-993
  • Mfr. Part No. 107814 NZMH2-AF40-BT-NA
Each
PHP51,244.32(exc. VAT)
Schneider Electric Surge Arrester, 20kA, 48V dc, Fixed Mount
  • RS Stock No. 288-7106
  • Mfr. Part No. A9L16339
Each
PHP42,302.42(exc. VAT)
Schneider Electric C120 A9N Circuit Breaker, 2P, 13A Curve B, 800V DC, 3 kA Breaking Capacity
  • RS Stock No. 288-7119
  • Mfr. Part No. A9N61658
Each
PHP15,188.05(exc. VAT)
Eaton RCBO, 16A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type D, FRBmM Range
  • RS Stock No. 123-637
  • Mfr. Part No. 170777 FRBMM-D16/3/003-A
Each
PHP13,180.33(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 45A, Breaking Capacity 14 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-401
  • Mfr. Part No. 3VA5145-4EC31-1AA0
Each
PHP35,545.33(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-1697
  • Mfr. Part No. 3VA2010-5HL46-0AA0
Each
PHP47,696.91(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 40A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-615
  • Mfr. Part No. 3VA5140-4ED11-0AA0
Each
PHP16,957.89(exc. VAT)
Schneider Electric C120 A9N Circuit Breaker, 2P, 80A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7116
  • Mfr. Part No. A9N18383
Each
PHP27,541.46(exc. VAT)
Europa EUR1 RCCB, 80A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 210-4760
  • Mfr. Part No. EUR180.30/2A
Each
PHP3,313.05(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4080
  • Mfr. Part No. 3VA2116-6JQ42-0AA0
Each
PHP169,454.25(exc. VAT)
RS PRO Residential RCCBs, 40A, 2 Pole, 300mA, Type A, 230V
  • RS Stock No. 284-2370
Each
PHP4,361.87(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 243-048
  • Mfr. Part No. 191643 NZMN2-4-VX160
Each
PHP113,998.45(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 220A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 243-021
  • Mfr. Part No. 191551 NZMH3-MX220-AVE
Each
PHP228,290.14(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 220A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 243-026
  • Mfr. Part No. 191580 NZMN3-MX220-AVE
Each
PHP199,625.58(exc. VAT)
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