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
Fuses - PCB
Fuses - PCB

33476 Products showing for Fuses & Circuit Breakers

45 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 2P 16A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 346-752
  • Mfr. Part No. C10F2TM016
Each
PHP45,828.11(exc. VAT)
In Stock
Acti9 Busbar, 440V ac, 18mm Pitch
  • RS Stock No. 585-482
  • Mfr. Part No. A9XPF521
1 Pack of 5
PHP23,218.75(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 1P, 25A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-862
  • Mfr. Part No. 2CCS861001R0254
Each
PHP5,842.94(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 60A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 346-798
  • Mfr. Part No. BGF26060
Each
PHP50,228.96(exc. VAT)
Temporarily out of stock
ABB MCCB 3P 250A, Breaking Capacity 65 kA
  • RS Stock No. 192-0834
  • Mfr. Part No. 1SDA068126R1
Each
PHP104,339.17(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 350A, Breaking Capacity 10 kA, Plug In
  • RS Stock No. 230-492
  • Mfr. Part No. 119365 NZMH3-ME350-S1
Each
PHP249,330.37(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 231-9350
  • Mfr. Part No. 1SDA100741R1 XT6S 800 EkipDip LS/I 800
Each
PHP183,396.81(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 18 Way, 125 A
  • RS Stock No. 339-681
  • Mfr. Part No. SEA9APN148MS
Each
PHP21,543.36(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7880
  • Mfr. Part No. C25F32D160
Each
PHP115,668.15(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 16A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-019
  • Mfr. Part No. 2CDS272061R0467
Each
PHP17,313.11(exc. VAT)
In Stock
Siemens Sirius Innovation Support F Stand-Alone Installation for use with 3RB30, 3RB31 SZ.S2, 3RU21
  • RS Stock No. 875-1103
  • Mfr. Part No. 3RU2936-3AA01
Each
PHP1,807.98(exc. VAT)
Temporarily out of stock
Phoenix Contact Three Phase Surge Arrester, 30kA, = 2.9kV, DIN Rail Mount
  • RS Stock No. 249-9524
  • Mfr. Part No. 2920269
Each
PHP24,295.12(exc. VAT)
In Stock
Better World
Schneider Electric Auto Recloser Circuit Trip for use with Circuit Breaker
  • RS Stock No. 790-7359
  • Mfr. Part No. A9C70134
Each
PHP37,419.57(exc. VAT)
Temporarily out of stock
ABB Flange for use with Tmax XT
  • RS Stock No. 236-6848
  • Mfr. Part No. 1SDA068652R1
Each
PHP2,689.55(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 236-6819
  • Mfr. Part No. 1SDA068565R1 XT4L 250 Ekip LSI 250A FF
Each
PHP146,965.98(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 200A NZM, 4 channels , Fixed
  • RS Stock No. 121-806
  • Mfr. Part No. 147394 NZMN2-4-A200-BT
Each
PHP123,562.12(exc. VAT)
Temporarily out of stock
Eaton MCB, 1P, 6A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-530
  • Mfr. Part No. 101254 PLI-C6/1
Each
PHP2,602.54(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-7506
  • Mfr. Part No. 1SDA067817R1 XT2S 160 Ekip LSIG 63A FF
Each
PHP104,899.74(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 6A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-876
  • Mfr. Part No. 132699 FAZ-B6/2-NA
Each
PHP8,284.13(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 500A, Fixed
  • RS Stock No. 122-316
  • Mfr. Part No. LV563325
Each
PHP34,561.88(exc. VAT)
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