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

303 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB 2P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-961
  • Mfr. Part No. 3VA5212-6EC61-0AA0
Each
PHP100,026.99(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4332 MCB, 3P, 32A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 300-062
  • Mfr. Part No. 5SJ4332-8HG42
Each
PHP22,359.82(exc. VAT)
Temporarily out of stock
Recom Surge Protector, 10A, 36V dc, Through Hole Mount
  • RS Stock No. 217-537
  • Mfr. Part No. RSP150-40M
1 Tray of 2
PHP18,921.27(exc. VAT)
Temporarily out of stock
Siemens ALPHA Cover for use with ALPHA 400/630
  • RS Stock No. 213-2409
  • Mfr. Part No. 8GK4501-4KK32
Each
PHP12,264.91(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0291
  • Mfr. Part No. 8GK1061-5KK20
Each
PHP77,382.76(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 63A Curve B, 500V AC, 10 kA Breaking Capacity
  • RS Stock No. 444-434
  • Mfr. Part No. A9C61463
Each
PHP149,475.06(exc. VAT)
Temporarily out of stock
Schneider Electric Horizontal Distribution Length, 3m, 25A, KBB Series
  • RS Stock No. 654-520
  • Mfr. Part No. KBB25ED44300W
Each
PHP12,324.14(exc. VAT)
Temporarily out of stock
ABB SU200 M MCB, 1P, 40A, Type Z, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-160
  • Mfr. Part No. 2CDS271337R0558
Each
PHP10,293.51(exc. VAT)
Temporarily out of stock
Eaton RCBO, 6A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 120-944
  • Mfr. Part No. 168216 FRBDM-C6/2/01-G/A
Each
PHP14,159.05(exc. VAT)
Temporarily out of stock
Hager BDF RCCB, 40A, 3P+N Pole, 30mA, Type F
  • RS Stock No. 602-176
  • Mfr. Part No. BDF940F
Each
PHP35,051.88(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 250-4134
  • Mfr. Part No. 1SDA054401R1
Each
PHP228,236.44(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 3P, 16A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-214
  • Mfr. Part No. 2CDS273347R0467
Each
PHP36,084.56(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 30A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-566
  • Mfr. Part No. 3VA5130-4ED41-0AA0
Each
PHP42,437.31(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 A9V2 MCB, 2P, 63A, Type A, 230-415V AC
  • RS Stock No. 212-251
  • Mfr. Part No. A9V25263
Each
PHP26,622.59(exc. VAT)
Currently unavailable
Bourns 1.5A Resettable Fuse, 15V
  • RS Stock No. 245-9142
  • Mfr. Part No. MF-LSMF150X-2
Each (On a Tape of 10)
PHP28.42(exc. VAT)
Temporarily out of stock
Leitungsschutzschalter Resi9 3P, 13A, C
  • RS Stock No. 537-872
  • Mfr. Part No. R9F24313
Each
PHP7,323.35(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with Unequipped Panel
  • RS Stock No. 629-188
  • Mfr. Part No. 8GK4501-5KK22
Each
PHP11,666.42(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 4P, 10A Curve B, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-268
  • Mfr. Part No. 2CDS254001R0105
Each
PHP19,199.44(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 7A Curve D, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-613
  • Mfr. Part No. 102185 FAZ-D7/2-NA
Each
PHP11,729.74(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA
  • RS Stock No. 209-6934
  • Mfr. Part No. 3VA2163-6KP42-0AA0
Each
PHP123,932.80(exc. VAT)
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