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

33476 Products showing for Fuses & Circuit Breakers

44 of 999+
Temporarily out of stock
ABB MCCB 3P 160A, Breaking Capacity 50 kA
  • RS Stock No. 192-0823
  • Mfr. Part No. 1SDA067436R1
Each
PHP60,615.24(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 210-1690
  • Mfr. Part No. 3VA1216-4EF32-0AA0
Each
PHP49,634.88(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 2P 30A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 341-505
  • Mfr. Part No. C10F2TM030
Each
PHP46,176.34(exc. VAT)
In Stock
ABB F200 RCCB, 63A, 4 Pole, 300mA, Type AC
  • RS Stock No. 537-7462
  • Mfr. Part No. 2CSF204001R3630 F204 AC-63/0,3
Each
PHP11,726.29(exc. VAT)
Temporarily out of stock
Eaton 160A Tag Fuse, 76 x 359mm, 3.6kV
  • RS Stock No. 258-860
  • Mfr. Part No. 3.6WFGHA160
1 Pack of 3
PHP140,893.12(exc. VAT)
In Stock
Better World
Schneider Electric Linergy Combination Block
  • RS Stock No. 235-789
  • Mfr. Part No. GV2AF01
Each
PHP538.10(exc. VAT)
Temporarily out of stock
Eaton RCBO, 25A Current Rating, 3P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-294
  • Mfr. Part No. 170747 FRBMM-C25/3/01-A
Each
PHP14,385.41(exc. VAT)
Temporarily out of stock
ABB S401M MCB, 1P, 4A Curve B, 12V AC, 10 kA Breaking Capacity
  • RS Stock No. 140-727
  • Mfr. Part No. 2CCS571001R0045
Each
PHP2,923.04(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 236-7282
  • Mfr. Part No. 1SDA067413R1 XT1N 160 TMD 50A FF
Each
PHP20,321.86(exc. VAT)
In Stock
Eaton 24V ac/dc Shunt Trip Shunt trip for use with N(S)1(-4) Series, NZM1(-4) Series
  • RS Stock No. 454-8203
  • Mfr. Part No. 259708 NZM1-XA24AC/DC
Each
PHP8,956.69(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS Stock No. 260-8221
  • Mfr. Part No. C63N3
Each
PHP170,759.83(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 10A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6088
  • Mfr. Part No. A9P22610
Each
PHP2,499.27(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 3P 124A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 358-357
  • Mfr. Part No. NHDF36125TW
Each
PHP112,773.42(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 236-6487
  • Mfr. Part No. 1SDA067932R1 XT2L 160 Ekip LSIG 100A FF
Each
PHP112,431.41(exc. VAT)
In Stock
Schneider Electric, PowerLogic, 63A, Energy Sensor, 1VA, Wired
  • RS Stock No. 275-6659
  • Mfr. Part No. A9MEM1560
Each
PHP13,232.66(exc. VAT)
In Stock
HENSEL ENYBOARD Distribution Board, 63 A
  • RS Stock No. 117-558
  • Mfr. Part No. KV 1618
Each
PHP7,617.06(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 3 Pole, 100mA, Type A, 240/415V ac
  • RS Stock No. 123-525
  • Mfr. Part No. 170219 FBSMV-40/3/01-A
Each
PHP8,347.06(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS 3RV MCB, 3P, 16A, 20 → 690V AC, 4 kA Breaking Capacity
  • RS Stock No. 156-446
  • Mfr. Part No. 3RV2011-4AA20-0BA0
Each
PHP14,248.87(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4S MCCB 3P 100A, Fixed Mount
  • RS Stock No. 236-6766
  • Mfr. Part No. 1SDA068478R1 XT4S 160 Ekip I 100A FF
Each
PHP56,060.32(exc. VAT)
In Stock
Schurter OG Tin Plated Bronze PCB Mount Fuse Clip for 5 x 20mm Fuse Clip Fuse
  • RS Stock No. 269-3795
  • Mfr. Part No. 0751.0099
Each
PHP23.54(exc. VAT)
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