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

286 of 999+
Temporarily out of stock
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 654-795
  • Mfr. Part No. A9DH3606
Each
PHP19,845.46(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 268-392
  • Mfr. Part No. 3VA6115-0HM31-0AA0
Each
PHP176,679.27(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9439
  • Mfr. Part No. 3VA1180-6GF46-0AA0
Each
PHP34,622.59(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM-125 Type A RCCB, 125A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-387
  • Mfr. Part No. 171168 FRCMM-125/2/003-G/A
Each
PHP147,313.44(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric iID RCCB, 25A, 2 Pole, 30mA
  • RS Stock No. 776-3682
  • Mfr. Part No. A9R31225
Each
PHP17,708.18(exc. VAT)
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 40A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 120-279
  • Mfr. Part No. 167108 FRCMM-40/4/003-G/A-NA
Each
PHP16,078.39(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 500A 3VA, 3 channels
  • RS Stock No. 156-749
  • Mfr. Part No. 3VA2440-0MQ32-0AA0
Each
PHP309,869.20(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 40A Curve K, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-570
  • Mfr. Part No. 2CDS271061R0557
Each
PHP11,139.36(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 50A, Clip-On
  • RS Stock No. 178-7834
  • Mfr. Part No. LV426610
Each
PHP28,974.14(exc. VAT)
In Stock
Littelfuse Time Delay Non Resettable Fuse 500mA, 125V ac/dc
  • RS Stock No. 738-3018
  • Mfr. Part No. 0473.500MRT1L
Each (In a Pack of 10)
PHP92.80(exc. VAT)
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 25A, 2 Pole, 300mA, Type A
  • RS Stock No. 211-9671
  • Mfr. Part No. 5SV3612-6KK01
Each
PHP23,721.21(exc. VAT)
Temporarily out of stock
Weidmüller Surge Arrester, 20kA, 1000V dc, Screw Mount Mount
  • RS Stock No. 285-5297
  • Mfr. Part No. 2764140000
Each
PHP37,189.49(exc. VAT)
In Stock
Siemens 80A Centred Tag Fuse, NH00, 690V ac
  • RS Stock No. 396-376
  • Mfr. Part No. 3NE8020-1
Each (In a Pack of 3)
PHP5,330.997(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 209-5174
  • Mfr. Part No. 3VA2163-6HL32-0AA0
Each
PHP49,993.75(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with XT2
  • RS Stock No. 236-6874
  • Mfr. Part No. 1SDA100110R1 Ekip LSI 100A XT2 3p
Each
PHP84,615.65(exc. VAT)
In Stock
ABB MISTRAL Blanking Plate
  • RS Stock No. 232-0310
  • Mfr. Part No. 1SL1948A00 MISTRAL
Each
PHP438.85(exc. VAT)
In Stock
Better World
Schneider Electric ID RCCB, 40A, 2 Pole, 30mA, Type AC, 240V ac
  • RS Stock No. 214-2096
  • Mfr. Part No. M9R11240
Each
PHP11,740.37(exc. VAT)
Temporarily out of stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-069
  • Mfr. Part No. KV 9103
Each
PHP2,798.01(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 7A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 240-465
  • Mfr. Part No. 102105 FAZ-D7/1-NA
Each
PHP4,574.60(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 2P, 8A Curve C, 415V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-905
  • Mfr. Part No. 2CDS382001R0084
Each
PHP16,344.25(exc. VAT)
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