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

33476 Products showing for Fuses & Circuit Breakers

21 of 999+
Temporarily out of stock
Schneider Electric K Residual Current Circuit Breaker, 40A, 2P Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 588-941
  • Mfr. Part No. A9KR16240
Each
PHP2,019.43(exc. VAT)
In Stock
Schneider Electric Acti9 A9F MCB Mini Circuit Breaker, 2P, 16A Curve C, 500V AC, 10 kA Breaking Capacity
  • RS Stock No. 653-861
  • Mfr. Part No. A9F74216
Each
PHP5,947.64(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 32A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9730
  • Mfr. Part No. LV510332
Each
PHP22,981.63(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 4 kA, Fixed Mount
  • RS Stock No. 232-0252
  • Mfr. Part No. 1SDA067399R1 XT1C 160 TMD 160A FF
Each
PHP25,828.65(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4171
  • Mfr. Part No. 3VA1112-4ED36-0AA0
Each
PHP34,774.71(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-137
  • Mfr. Part No. 113332 NZMH2-A100-SVE
Each
PHP59,601.76(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 400A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9785
  • Mfr. Part No. LV540316
Each
PHP85,193.43(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 232-0237
  • Mfr. Part No. 1SDA067058R1 XT2N 160 Ekip LS/I 160A FF
Each
PHP40,678.13(exc. VAT)
Last RS stock
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 10A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8628
  • Mfr. Part No. EZ9F66110
Each
PHP235.67(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 2.5A, 63V
  • RS Stock No. 252-2126
Each (On a Tape of 4000)
PHP6.513(exc. VAT)
In Stock
Eaton 25A Centred Tag Fuse, NH000, 690V ac
  • RS Stock No. 703-8778
  • Mfr. Part No. 25NHG000B-690
Each
PHP491.00(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 4P 800A, Fixed Mount
  • RS Stock No. 247-1811
  • Mfr. Part No. 33469
Each
PHP252,202.76(exc. VAT)
In Stock
Schneider Electric Acti9 A9P MCB, 1P, 16A, 230V AC, 4500 A Breaking Capacity
  • RS Stock No. 276-8734
  • Mfr. Part No. A9P12616
Each
PHP4,103.41(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 1.6kA, Fixed Mount
  • RS Stock No. 232-0159
  • Mfr. Part No. 1SDA062994R1 T7S 1600A PR231-LS/I FF
Each
PHP290,817.44(exc. VAT)
In Stock
Mersen 6A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-6978
  • Mfr. Part No. K215128
Each (In a Pack of 10)
PHP177.115(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS Stock No. 260-8049
  • Mfr. Part No. C25W3TM200
Each
PHP203,237.55(exc. VAT)
In Stock
Schneider Electric C120 A9N Circuit Breaker, 2P, 125A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7118
  • Mfr. Part No. A9N18385
Each
PHP52,825.03(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200M MCB, 1P, 1A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4093
  • Mfr. Part No. 2CDS271001R0014 S201M-C1
Each
PHP1,230.50(exc. VAT)
In Stock
Eaton 100A Bolted Tag Fuse, FE, 690 V ac, 500V dc, 63.5mm
  • RS Stock No. 182-1567
  • Mfr. Part No. 100FE
Each
PHP1,960.20(exc. VAT)
In Stock
Eaton MCCB 3P 250A, Breaking Capacity 80 kA, Fixed Mount
  • RS Stock No. 628-8105
  • Mfr. Part No. 266007 PN2-250
1 Box of 1
PHP54,368.04(exc. VAT)
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