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

284 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 25A, Fixed Mount
  • RS Stock No. 260-9526
  • Mfr. Part No. C10R36M025
Each
PHP162,117.48(exc. VAT)
In Stock
Murrelektronik Limited Mico Pro Circuit Breaker
  • RS Stock No. 285-5871
  • Mfr. Part No. 9000-41011-0200000
Each
PHP3,001.39(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 25A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9737
  • Mfr. Part No. LV510341
Each
PHP37,790.64(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IUGN6 Single Pole Panel Mount, 20A Current Rating
  • RS Stock No. 275-0282
  • Mfr. Part No. IUGN6-1-62-20.0
1 Box of 5
PHP26,886.42(exc. VAT)
In Stock
Eaton PC Board Non Resettable Fuse, Radial 3.15A, 250V ac
  • RS Stock No. 769-3340
  • Mfr. Part No. SS-5-3-15A-BK
Each (In a Pack of 5)
PHP60.16(exc. VAT)
In Stock
Better World
Schneider Electric Busbar Trunking Fixing Bracket, Canalis KNB Series
  • RS Stock No. 248-4074
  • Mfr. Part No. KNB160ZF1
Each (In a Pack of 10)
PHP515.775(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 231-9333
  • Mfr. Part No. 1SDA100388R1 XT5N 630 TMA 630-6300 4pFF
Each
PHP187,788.47(exc. VAT)
In Stock
Schneider Electric Acti9 iID RCCB, 80A, 4 Pole, 30mA, Type A-SI, 380 → 415V ac
  • RS Stock No. 130-793
  • Mfr. Part No. A9R31480
Each
PHP46,316.23(exc. VAT)
Temporarily out of stock
PEIGNE EQUILIBRE RESI 24 MOD
  • RS Stock No. 250-4770
  • Mfr. Part No. 2CDL340150R1044
Each
PHP3,993.88(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC Single Pole 250V ac Voltage Rating DIN Rail, 1A Current Rating
  • RS Stock No. 135-485
  • Mfr. Part No. 0914617
1 Pack of 6
PHP29,504.69(exc. VAT)
In Stock
Mersen 10A Offset Tag Fuse, 9.4 x 47mm
  • RS Stock No. 209-6420
  • Mfr. Part No. G1065688 / BLST24V10
Each (In a Pack of 10)
PHP232.567(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 1P 125A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 429-396
  • Mfr. Part No. C16F1TM125
Each
PHP52,326.39(exc. VAT)
Temporarily out of stock
ABB S802C MCB, 2P, 63A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-604
  • Mfr. Part No. 2CCS882001R0631
Each
PHP11,570.34(exc. VAT)
In Stock
Mersen 40A NH Fuse, NH000, 690V ac
  • RS Stock No. 448-3285
  • Mfr. Part No. C320047
Each
PHP2,432.63(exc. VAT)
In Stock
Eaton 250A NH Fuse, NH02, 500V
  • RS Stock No. 703-8743
  • Mfr. Part No. 250NHG02B
Each
PHP829.94(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9399
  • Mfr. Part No. 3VA1163-5GE46-0AA0
Each
PHP34,195.51(exc. VAT)
In Stock
Eaton RCD, 80A, 4 Pole, 30mA, Type AC
  • RS Stock No. 922-8636
  • Mfr. Part No. 235418 PFIM-80/4/003-MW
Each
PHP21,286.92(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3594
  • Mfr. Part No. 3VA2010-7KQ32-0AA0
Each
PHP161,565.60(exc. VAT)
In Stock
Eaton PC Board Non Resettable Fuse, Radial 315mA, 250V ac
  • RS Stock No. 769-3220
  • Mfr. Part No. SR-5-315MA-BK
Each (In a Pack of 10)
PHP51.093(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 345-305
  • Mfr. Part No. C10B47E100
Each
PHP315,560.90(exc. VAT)
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