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

33491 Products showing for Fuses & Circuit Breakers

2 of 999+
Z-R23 ICS-R16 MCB, 16A, 240V AC, 24V DC
  • RS Stock No. 261-954
  • Mfr. Part No. ICS-R16D024B100 Z-R23/16-10
1 Pack of 2
PHP3,807.84(exc. VAT)
Schneider Electric 3 Phase Surge Protector, 40kA
  • RS Stock No. 815-3278
  • Mfr. Part No. SDSA3650
Each
PHP15,948.78(exc. VAT)
RS PRO 30A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 500V
  • RS Stock No. 242-0497
1 Bag of 10
PHP2,858.58(exc. VAT)
Eaton 10A British Standard Fuse, A2, 660V ac, 73mm
  • RS Stock No. 415-137
  • Mfr. Part No. TIA10
Each (In a Pack of 5)
PHP739.82(exc. VAT)
Eaton Single Phase Surge Protector, 40kA, 1.4kV, DIN Rail Mount
  • RS Stock No. 120-388
  • Mfr. Part No. 167594 SPCT2-280/2
Each
PHP16,520.65(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 6A Curve D, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9652
  • Mfr. Part No. A9F75206
Each
PHP9,827.64(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 300A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 231-304
  • Mfr. Part No. 107519 NZMC2-A300
Each
PHP115,244.73(exc. VAT)
Rittal Earth Bar L. 450mm x W. 15mm x H. 5mm
  • RS Stock No. 826-2868
  • Mfr. Part No. 7113000
Each
PHP3,880.74(exc. VAT)
Mersen 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 2P, 690V ac
  • RS Stock No. 189-5335
  • Mfr. Part No. H1062699 / CMC102
Each
PHP817.24(exc. VAT)
RS PRO Single Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-802
Each
PHP5,485.41(exc. VAT)
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 254-6286
  • Mfr. Part No. C10F3TM100
Each
PHP60,212.11(exc. VAT)
ABB Tmax T Motor Operator for use with MCCB
  • RS Stock No. 232-0114
  • Mfr. Part No. 1SDA054897R1 MOE 220-250VACDC T4-5
Each
PHP104,329.68(exc. VAT)
ABB RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6972
  • Mfr. Part No. 2CSR275080R1404
Each
PHP13,359.13(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV3P 3 Pole 690V ac Voltage Rating DIN Rail Mount, 73A Current Rating
  • RS Stock No. 188-4747
  • Mfr. Part No. GV3P73
Each
PHP15,189.27(exc. VAT)
ABB, Pro M MCCB 3P 125A, Breaking Capacity 6 kA, DIN Rail Mount
  • RS Stock No. 538-3849
  • Mfr. Part No. 2CDE283001R0125 E203/125R
Each
PHP8,168.75(exc. VAT)
ABB F200 RCCB, 40A, 4 Pole, 30mA, Type A, 230/400V ac
  • RS Stock No. 177-5057
  • Mfr. Part No. 2CSF204401R1400 F204 A-40/0,03 AP-R
Each
PHP10,069.30(exc. VAT)
RS PRO 1A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-380
Each (In a Pack of 10)
PHP24.907(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 1A, 125V ac/dc
  • RS Stock No. 541-3265
  • Mfr. Part No. 251001.NRT1L
Each (In a Pack of 10)
PHP70.785(exc. VAT)
Mersen 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 1P, 500V ac
  • RS Stock No. 287-5799
  • Mfr. Part No. N218213
Each
PHP517.86(exc. VAT)
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 15A
  • RS Stock No. 221-0893
  • Mfr. Part No. BDL36015LU
Each
PHP25,479.03(exc. VAT)
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