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

124 of 999+
In Stock
Eaton xEffect FAZ MCB, 1P, 10A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 245-847
  • Mfr. Part No. 132683 FAZ-B10/1-NA
1 Pack of 2
PHP3,168.68(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 2P, 6A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-020
  • Mfr. Part No. 2CCS862001R0065
Each
PHP19,937.04(exc. VAT)
In Stock
Schurter SMD Non Resettable Fuse 500mA, 125V ac/dc
  • RS Stock No. 777-7514
  • Mfr. Part No. 7010.9790.63
Each
PHP75.53(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 16 kA
  • RS Stock No. 209-6956
  • Mfr. Part No. 3VA1032-2ED32-0AA0
Each
PHP20,621.82(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, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 63A, Fixed Mount
  • RS Stock No. 232-0214
  • Mfr. Part No. 1SDA066805R1 XT1B 160 TMD 63A FF
Each
PHP20,318.28(exc. VAT)
In Stock
ABB Cover for use with ABB Tmax XT1
  • RS Stock No. 831-9210
  • Mfr. Part No. 1SDA066905R1 KIT FC Cu XT1 3pcs
Each (In a Pack of 3)
PHP1,285.137(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-889
  • Mfr. Part No. 3VA6110-6HL31-0AA0
Each
PHP66,346.36(exc. VAT)
In Stock
Better World
Schneider Electric iID RCCB, 63A, 2 Pole, 30mA
  • RS Stock No. 734-9343
  • Mfr. Part No. A9R11263
Each
PHP13,901.32(exc. VAT)
Temporarily out of stock
Europa Busbar
  • RS Stock No. 849-6285
  • Mfr. Part No. ECUBB18
Each
PHP709.65(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 500A, Fixed Mount
  • RS Stock No. 260-8207
  • Mfr. Part No. C63F4TM500D
Each
PHP230,037.80(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 2A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 247-162
  • Mfr. Part No. 102907 NZMB1-S2-CNA
Each
PHP31,010.51(exc. VAT)
In Stock
ABB System M Pro S200 MCB, 3P, 20A Curve B, 400V AC, 12V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-0885
  • Mfr. Part No. 2CDS253001R0205
Each
PHP5,915.62(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 80A, Fixed Mount
  • RS Stock No. 236-7448
  • Mfr. Part No. 1SDA067710R1 XT2V 160 TMA 80A FF
Each
PHP85,754.13(exc. VAT)
Temporarily out of stock
ABB S802N MCB, 2P, 16A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-550
  • Mfr. Part No. 2CCS892001R0164
Each
PHP10,345.16(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6146
  • Mfr. Part No. 5SU1324-6FP32
Each
PHP16,457.88(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-675
  • Mfr. Part No. 3VA5212-5EF31-0AA0
Each
PHP94,341.48(exc. VAT)
In Stock
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS Stock No. 246-5162
  • Mfr. Part No. 3RV1915-1DB
Each
PHP2,330.55(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti9 1 Phase Busbar, 250 V, 440 V, 9mm Pitch
  • RS Stock No. 238-4081
  • Mfr. Part No. A9XPK714
Each
PHP40,137.19(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 3P 600A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 358-355
  • Mfr. Part No. NLDL36600U53X
Each
PHP761,138.69(exc. VAT)
1
124
1676
Results per page

Related links