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

33493 Products showing for Fuses & Circuit Breakers

111 of 999+
In Stock
Better World
Schneider Electric Circuit Trip for use with Acti 9 Isobar A Type Distribution Boards, Acti9 Isobar B Type Distribution
  • RS Stock No. 134-6005
  • Mfr. Part No. SEA9TB1001
Each
PHP1,627.35(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9575
  • Mfr. Part No. 3VA10253ED460AA0
Each
PHP27,536.14(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 36 Way, 63 A
  • RS Stock No. 183-2861
  • Mfr. Part No. KV9336M
Each
PHP13,239.62(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 8A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-910
  • Mfr. Part No. 2CDS272061R0084
Each
PHP15,982.82(exc. VAT)
Temporarily out of stock
Eaton 35A Centred Tag Fuse, NH01, 500V ac
  • RS Stock No. 182-1717
  • Mfr. Part No. 35NHG01B
Each
PHP660.16(exc. VAT)
Temporarily out of stock
Schneider Electric Interlock for use with Compact NS630b → 1600 Circuit Breaker
  • RS Stock No. 247-1875
  • Mfr. Part No. 33914
Each
PHP114,652.08(exc. VAT)
In Stock
Siemens SENTRON 1 Phase Busbar, 230V, 8.6mm Pitch
  • RS Stock No. 187-5186
  • Mfr. Part No. 5ST3674-0
Each
PHP1,232.35(exc. VAT)
Temporarily out of stock
ABB S800U MCB, 2P, 60A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-487
  • Mfr. Part No. 2CCS862017R0587
Each
PHP19,124.81(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric iID RCCB, 100A, 4 Pole, 30mA, Type AC, 415V ac
  • RS Stock No. 248-3694
  • Mfr. Part No. A9R11491
Each
PHP50,416.42(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 80A, 4 Pole, 300mA, Type B, 400V ac
  • RS Stock No. 176-9627
  • Mfr. Part No. F204B-80/0.3
Each
PHP183,531.42(exc. VAT)
Temporarily out of stock
Schneider Electric A9Z RCCB, 63A, 4 Pole, 300mA, Type A-SI, 380-415V ac
  • RS Stock No. 212-354
  • Mfr. Part No. A9Z35463
Each
PHP27,465.08(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 231-331
  • Mfr. Part No. 113012 NZMB2-4-AF150-BT-NA
Each
PHP118,030.55(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX MCCB 4P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 254-6287
  • Mfr. Part No. C10F4
Each
PHP25,258.97(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2S MCCB 4P 16A, Fixed Mount
  • RS Stock No. 236-7477
  • Mfr. Part No. 1SDA067749R1 XT2S 160 TMG 16A FF
Each
PHP36,108.54(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 2P, 2A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-046
  • Mfr. Part No. 2CDS272001R0277
Each
PHP19,499.36(exc. VAT)
In Stock
Eaton 125A Neutral Link, 22mm x 58mm
  • RS Stock No. 703-8526
  • Mfr. Part No. C22NL
Each (In a Pack of 10)
PHP361.469(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 8A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 203-887
  • Mfr. Part No. 2CDS273001R0081
Each
PHP29,711.99(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 100A, Fixed Mount
  • RS Stock No. 232-0236
  • Mfr. Part No. 1SDA067018R1 XT2N 160 TMA 100A FF
Each
PHP24,338.50(exc. VAT)
Temporarily out of stock
Eaton 175A DIN Rail Mount Fuse Block, 600V ac/dc
  • RS Stock No. 850-7098
  • Mfr. Part No. PDBFS220
Each (In a Pack of 3)
PHP6,700.413(exc. VAT)
In Stock
Schneider Electric Acti9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 211-965
  • Mfr. Part No. A9XPH309
Each
PHP1,246.88(exc. VAT)
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