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
Fuses - PCB
Fuses - PCB

33502 Products showing for Fuses & Circuit Breakers

172 of 999+
Temporarily out of stock
Schneider Electric Flexible Busbar Trunking, 2m, 100A, Canalis Series
  • RS Stock No. 244-987
  • Mfr. Part No. KSA100EV4203
Each
PHP53,243.17(exc. VAT)
In Stock
Better World
ABB, XT2S MCCB 3P 480A, Fixed Mount
  • RS Stock No. 236-7493
  • Mfr. Part No. 1SDA067768R1 XT2S 160 MA 80 FF
Each
PHP25,387.97(exc. VAT)
Temporarily out of stock
xEffect MCB, 2P, 80A Curve C, 400V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 252-931
  • Mfr. Part No. 211800 AZ-2-C80
Each
PHP20,673.67(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact Circuit Breaker for use with Distribution
  • RS Stock No. 119-150
  • Mfr. Part No. NHGF36050TW
Each
PHP41,649.48(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 2A, 63V
  • RS Stock No. 252-2122
Each (On a Tape of 4000)
PHP6.991(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT Circuit breaker 4P 50A, Breaking Capacity 16 KA, Fixed Mount
  • RS Stock No. 119-470
  • Mfr. Part No. C11E44V050B
Each
PHP141,723.16(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY5 MCB, 4P, 1A Curve C, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-327
  • Mfr. Part No. 5SY5401-7
Each
PHP29,422.85(exc. VAT)
Temporarily out of stock
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-684
  • Mfr. Part No. A9DC4620
Each
PHP26,111.49(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL60 MCB, 1P + N, 2A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 328-286
  • Mfr. Part No. 5SL6002-7MF
Each
PHP19,164.67(exc. VAT)
In Stock
ABB RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 136-7777
  • Mfr. Part No. 2CSR275151R1105 DSE201 M B10 A30 - N Blue
Each
PHP8,960.15(exc. VAT)
Temporarily out of stock
ABB Tmax Plug In Unit for use with T4
  • RS Stock No. 237-5976
  • Mfr. Part No. 1SDA054744R1 T4 WFP-VR
Each
PHP39,220.11(exc. VAT)
In Stock
Eaton 160A Centred Tag Fuse, NH000, 690V ac
  • RS Stock No. 182-1414
  • Mfr. Part No. 170M1569D
Each (In a Box of 10)
PHP5,340.212(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1722
  • Mfr. Part No. 3VA2116-6HL42-0AA0
Each
PHP102,667.82(exc. VAT)
Temporarily out of stock
ABB RCBO, 16A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-5138
  • Mfr. Part No. 2CSR272001R1165 DS202 M AC-B16/0.03
Each
PHP15,898.40(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 1.25kA, Fixed Mount
  • RS Stock No. 232-0158
  • Mfr. Part No. 1SDA062882R1 T7S-M 1250A PR231-LS/I FF
Each
PHP329,718.48(exc. VAT)
In Stock
Hager 1A Cartridge Fuse, 10 x 38mm
  • RS Stock No. 250-8592
  • Mfr. Part No. LF301M
Each (In a Pack of 10)
PHP251.133(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Busbar Feed Unit, Canalis KBB Series
  • RS Stock No. 219-8864
  • Mfr. Part No. KBB40ABG44W
Each
PHP13,236.77(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 231-9338
  • Mfr. Part No. 1SDA100417R1 XT5S 630 TMA 630-6300 3pFF
Each
PHP138,541.60(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9580
  • Mfr. Part No. 3VA10322ED360AA0
Each
PHP20,981.27(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 55 kA
  • RS Stock No. 209-6818
  • Mfr. Part No. 3VA1140-5EE32-0AA0
Each
PHP24,325.98(exc. VAT)
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