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

292 of 999+
In Stock
Eaton 110 → 130V ac Undervoltage Release Circuit Trip for use with N(S)2(-4) Series, N(S)3(-4) Series, NZM2(-4)
  • RS Stock No. 537-5624
  • Mfr. Part No. 259589 NZM2/3-XUHIV110-130AC
Each
PHP14,676.40(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 1P, 16A Curve K, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 201-170
  • Mfr. Part No. 2CDS271347R0467
Each
PHP9,910.17(exc. VAT)
In Stock
ABB F200 RCCB, 63A, 4 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 225-6130
  • Mfr. Part No. 2CSF204101R2630 F204 A-63/0,1
Each
PHP17,808.35(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 25A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 335-293
  • Mfr. Part No. SE10C325
Each
PHP9,075.00(exc. VAT)
Unavailable
Schneider Electric ComPact Trip Unit for use with Compact NSX 160/250 circuit breakers
  • RS Stock No. 221-0977
  • Mfr. Part No. LV430475
Each
PHP48,425.99(exc. VAT)
In Stock
Schurter SMD Non Resettable Fuse 2A, 125V ac/dc
  • RS Stock No. 131-476
  • Mfr. Part No. 3404.0012.11
Each (In a Pack of 10)
PHP61.439(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 232-057
  • Mfr. Part No. 110890 NZMN3-AE630-T
Each
PHP234,155.01(exc. VAT)
In Stock
ABB Tmax XT Auxiliary Contact for use with Circuit Breaker
  • RS Stock No. 232-0179
  • Mfr. Part No. 1SDA066422R1 AUX 250V XT1..XT4
Each
PHP1,709.65(exc. VAT)
Temporarily out of stock
ABB S403M MCB, 3P, 50A Curve K, 440V AC, 12V DC, 15 kA Breaking Capacity
  • RS Stock No. 141-093
  • Mfr. Part No. 2CCS573001R0577
Each
PHP21,289.80(exc. VAT)
Temporarily out of stock
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-838
  • Mfr. Part No. A9D73616
Each
PHP21,451.33(exc. VAT)
Temporarily out of stock
Littelfuse Non-Resettable Surface Mount Fuse 50A, 250V ac
  • RS Stock No. 229-1421
  • Mfr. Part No. 0456050.DRSDE
Each (On a Reel of 1500)
PHP230.472(exc. VAT)
In Stock
Better World
Schneider Electric iC60 RCD, 63A, 30mA
  • RS Stock No. 776-2929
  • Mfr. Part No. A9V31463
Each
PHP67,571.83(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX160/250 Circuit Breakers
  • RS Stock No. 260-7715
  • Mfr. Part No. C163TM125
Each
PHP15,581.68(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA , Fixed
  • RS Stock No. 127-765
  • Mfr. Part No. 183553 IZMX16N4-V16F-1
Each
PHP803,231.12(exc. VAT)
Temporarily out of stock
Eaton Fuse Holder Microswitch
  • RS Stock No. 182-1399
  • Mfr. Part No. 170H3030
Each (In a Box of 10)
PHP9,085.114(exc. VAT)
Temporarily out of stock
Eaton MCB, 1P, 4A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 243-996
  • Mfr. Part No. 101281 PLI-D4/1N
Each
PHP5,175.75(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 3+N, 10A, Type Z, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 203-097
  • Mfr. Part No. 2CDS383103R0428
Each
PHP39,681.14(exc. VAT)
Temporarily out of stock
SENTRON Support for use with 3VA23/24, Door Mounted Rotary Operator 3VA13/14
  • RS Stock No. 263-528
  • Mfr. Part No. 3VA9467-0GA85
Each
PHP5,586.29(exc. VAT)
In Stock
Better World
Schneider Electric Cable Connector for use with Compact Nsx, Easypact Cvs
  • RS Stock No. 221-1231
  • Mfr. Part No. LV432482
Each
PHP18,745.88(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9346
  • Mfr. Part No. 3VA1150-3ED46-0AA0
Each
PHP28,543.91(exc. VAT)
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