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

196 of 999+
Eaton 250A Tag Fuse, 76 x 254mm, 3.6kV
  • RS Stock No. 228-960
  • Mfr. Part No. 3.6WKFHO250
1 Pack of 3
PHP250,156.98(exc. VAT)
MECATRACTION Earth Clamp
  • RS Stock No. 284-6376
  • Mfr. Part No. C6RG2-16
1 Box of 6
PHP2,545.82(exc. VAT)
ABB S804C MCB, 4P, 16A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-986
  • Mfr. Part No. 2CCS884001R0165
Each
PHP17,768.03(exc. VAT)
Siemens SENTRON Option Plug
  • RS Stock No. 277-0958
  • Mfr. Part No. 3WA9111-0EX03
Each
PHP62,893.33(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9753
  • Mfr. Part No. 3VA1116-3ED46-0AA0
Each
PHP61,970.38(exc. VAT)
Phoenix Contact 1 Phase Surge Protector, DIN Rail Mount
  • RS Stock No. 201-6810
  • Mfr. Part No. 2905472
Each
PHP16,564.88(exc. VAT)
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 100mA, 240/415V ac
  • RS Stock No. 123-231
  • Mfr. Part No. 170288 FRCMM-80/2/01-G/A
Each
PHP35,774.42(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 25A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9747
  • Mfr. Part No. LV510471
Each
PHP42,833.59(exc. VAT)
Eaton, xEnergy MCCB 3P 250A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5589
  • Mfr. Part No. 259124 NZMN2-VE250
Each
PHP58,962.32(exc. VAT)
ABB Tmax XT Neutral Kit for use with Tmax XT
  • RS Stock No. 237-6189
  • Mfr. Part No. 1SDA066976R1 TA NEUTRAL 63A XT4
Each
PHP9,993.63(exc. VAT)
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 25 kA, Cable Mount
  • RS Stock No. 249-229
  • Mfr. Part No. 3VA6610-5KL46-0AA0
Each
PHP769,764.45(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9374
  • Mfr. Part No. 3VA1150-6GF42-0AA0
Each
PHP29,718.82(exc. VAT)
ABB S802C MCB, 2P, 20A Curve K, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-531
  • Mfr. Part No. 2CCS882001R0487
Each
PHP9,773.15(exc. VAT)
ABB System Pro M Compact S200M MCB, 1P, 6A, Type Z, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 202-867
  • Mfr. Part No. 2CDS271001R0378
Each
PHP8,974.17(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 55 kA
  • RS Stock No. 209-7014
  • Mfr. Part No. 3VA1180-5EE46-0AA0
Each
PHP37,218.83(exc. VAT)
Siemens Sentron Connecting Terminals
  • RS Stock No. 209-7087
  • Mfr. Part No. 5ST3768-4
Each (In a Pack of 10)
PHP743.316(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3763
  • Mfr. Part No. 3VA2025-6HN36-0AA0
Each
PHP62,294.41(exc. VAT)
Schneider Electric, Compact MCCB 3, 4 630A, Fixed Mount
  • RS Stock No. 247-1834
  • Mfr. Part No. 33538
Each
PHP147,147.60(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 600A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 346-697
  • Mfr. Part No. NLGL36600U31X
Each
PHP724,777.95(exc. VAT)
Schneider Electric Multi 9 Busbar Connector, 1000V, 18mm Pitch
  • RS Stock No. 214-2108
  • Mfr. Part No. M9XUPC04
Each
PHP4,682.21(exc. VAT)
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