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

8 of 999+
In Stock
RS PRO Residential RCCBs, 25A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 284-2367
Each
PHP2,347.95(exc. VAT)
In Stock
Schurter 6.3A Inline Fuse Holder for 5 x 20mm Fuse, 32V dc
  • RS Stock No. 703-2815P
  • Mfr. Part No. 8601.2001.08
Each (Supplied in a Box)
PHP112.688(exc. VAT)
In Stock
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)
In Stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 25A Curve C, 500V DC
  • RS Stock No. 772-1533
  • Mfr. Part No. A9N61533
Each
PHP9,486.44(exc. VAT)
Temporarily out of stock
Schneider Electric Resi9 R9F2 MCB, 3P, 10A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-025
  • Mfr. Part No. R9F23310
Each
PHP6,647.22(exc. VAT)
Limited stock
nVent ERICO Neutral Busbar Busbar
  • RS Stock No. 646-805
  • Mfr. Part No. 568678
Each
PHP797.57(exc. VAT)
Temporarily out of stock
Mersen Surge Protector
  • RS Stock No. 251-3636
  • Mfr. Part No. 83020183 / STPT2-40K275V-2P-TE GROUND MONITORING
Each
PHP8,791.84(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 12 Way, 63 A
  • RS Stock No. 183-2857
  • Mfr. Part No. KV9112M
Each
PHP8,377.91(exc. VAT)
In Stock
Europa RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, EUBLMC Range
  • RS Stock No. 210-4734
  • Mfr. Part No. EUBLMC40B30A
Each
PHP4,422.86(exc. VAT)
In Stock
Mersen 5A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4351
  • Mfr. Part No. ATM5
Each
PHP1,077.07(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 147-474
  • Mfr. Part No. 3VA5217-6EC31-1AA0
Each
PHP134,592.79(exc. VAT)
Temporarily out of stock
ABB S302 MCB, 2P, 4A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-692
  • Mfr. Part No. 2CDS382001R0044
Each
PHP19,461.45(exc. VAT)
Temporarily out of stock
ABB S800C MCB, 3P, 20A Curve D, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-229
  • Mfr. Part No. 2CCS883001R0201
Each
PHP14,461.15(exc. VAT)
In Stock
Schneider Electric, EasyPact MCCB 3P 80A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6109
  • Mfr. Part No. EZC100H3080
Each
PHP20,409.71(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS Stock No. 260-7974
  • Mfr. Part No. C25R3TM200
Each
PHP167,904.90(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 20A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 207-186
  • Mfr. Part No. BDL36020LU
Each
PHP36,448.47(exc. VAT)
In Stock
Eaton Eaton Moeller Auxiliary Contact for use with Motor Protective Circuit Breaker
  • RS Stock No. 272-2343
  • Mfr. Part No. 278495 VHI20-PKZ01
Each
PHP1,385.31(exc. VAT)
In Stock
ABB SU 200 M Circuit Breaker, 3P, 10A Curve C, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 287-6393
  • Mfr. Part No. 2CDS273337R0104
Each
PHP9,452.40(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Axial 5A, 125V ac/dc
  • RS Stock No. 541-3300P
  • Mfr. Part No. 0251005.NRT1L
Each (Supplied in a Bag)
PHP45.346(exc. VAT)
In Stock
Mersen 6A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 377-0235
  • Mfr. Part No. B215695
Each (In a Pack of 5)
PHP143.214(exc. VAT)
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