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

307 of 999+
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3+N, 4A, Type Z, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-798
  • Mfr. Part No. 2CDS273103R0338
Each
PHP37,130.09(exc. VAT)
Temporarily out of stock
SENTRON Cable for use with 3VA51/52, 3VA61/62 Series
  • RS Stock No. 263-814
  • Mfr. Part No. 3VA9278-0CC70
Each
PHP42,227.17(exc. VAT)
In Stock
ABB Installaton Accessory for use with ComfortLine A & B
  • RS Stock No. 289-1611
  • Mfr. Part No. 2CPX052459R9999
Each
PHP614.17(exc. VAT)
Temporarily out of stock
Schneider Electric CompacT Cover Frame for use with CompacT NS2000N Range
  • RS Stock No. 654-860
  • Mfr. Part No. C200N4FM
Each
PHP677,044.04(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 25A, Fixed Mount
  • RS Stock No. 254-6296
  • Mfr. Part No. C10N3TM025
Each
PHP46,794.08(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, NSX Range MCCB 4P 100A, Breaking Capacity 90 kA, Fixed Mount
  • RS Stock No. 849-4208
  • Mfr. Part No. LV429861
Each
PHP40,968.32(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 201-6932
  • Mfr. Part No. 2CSR275180R1164 DS201 M C16 A30
Each
PHP11,101.61(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric GFP RCCB, 25A, 4 Pole, 260mA, 277V ac
  • RS Stock No. 211-2468
  • Mfr. Part No. M9R84425
Each
PHP32,917.19(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4837
  • Mfr. Part No. 3VA2580-5HM32-0AA0
Each
PHP216,701.35(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4769
  • Mfr. Part No. 3VA2163-7MQ36-0AA0
Each
PHP117,222.93(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 2P, 500mA, Type Z, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-407
  • Mfr. Part No. 2CDS252001R0158
Each
PHP12,058.52(exc. VAT)
Temporarily out of stock
ABB Tmax XT Motor Operator for use with Tmax XT
  • RS Stock No. 237-6086
  • Mfr. Part No. 1SDA066468R1 MOE XT2-XT4 480...525VAC
Each
PHP58,512.63(exc. VAT)
Temporarily out of stock
60A NH Fuse, 1.9 x 1 x 2.13in, 600V ac
  • RS Stock No. 261-989
  • Mfr. Part No. TCF60RN
1 Pack of 12
PHP90,481.79(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1+N, 50A Curve D, 230V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-116
  • Mfr. Part No. 2CDS271103R0501
Each
PHP16,067.91(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 127-746
  • Mfr. Part No. 183453 IZMX16H4-P08F-1
Each
PHP709,164.73(exc. VAT)
Temporarily out of stock
Phoenix Contact Surge Protector, 35V (Volts), DIN Rail Mount
  • RS Stock No. 277-8608
  • Mfr. Part No. 1088569
Each
PHP13,188.05(exc. VAT)
Temporarily out of stock
Phoenix Contact Surge Protector, 440V ac, Screw Mount Mount
  • RS Stock No. 265-7498
  • Mfr. Part No. 2803409
Each
PHP5,466.30(exc. VAT)
In Stock
Siemens Sentron Trip alarm switch for use with 3VA Series Circuit Breaker
  • RS Stock No. 874-4512
  • Mfr. Part No. 3VA9988-0AB11
Each
PHP3,654.09(exc. VAT)
Temporarily out of stock
35A NH Fuse, 1.9 x 1 x 2.13in, 600V ac
  • RS Stock No. 262-588
  • Mfr. Part No. TCF35RN
1 Pack of 12
PHP90,481.79(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1729
  • Mfr. Part No. 3VA2163-6HN42-0AA0
Each
PHP69,381.75(exc. VAT)
1
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