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

33502 Products showing for Fuses & Circuit Breakers

208 of 999+
Temporarily out of stock
Schneider Electric Canalis 1 Phase Busbar, 230-400V
  • RS Stock No. 212-276
  • Mfr. Part No. KBA40ED2203W
1 Pack of 6
PHP56,484.53(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 8A, 250V ac
  • RS Stock No. 767-5077
Each (In a Pack of 10)
PHP41.675(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1+N, 63A Curve D, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 229-735
  • Mfr. Part No. 115379 FAZ-D63/1N
Each
PHP6,480.68(exc. VAT)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 2m, 630A, Canalis Series
  • RS Stock No. 335-018
  • Mfr. Part No. KSA630EV4203
Each
PHP122,549.43(exc. VAT)
Temporarily out of stock
Eaton Eaton Distribution Parts 1+N Phase Busbar Connector
  • RS Stock No. 254-501
  • Mfr. Part No. 263941 ZV-L1/N-10
1 Pack of 10
PHP802.62(exc. VAT)
Temporarily out of stock
Siemens Surge Arrester
  • RS Stock No. 226-1629
  • Mfr. Part No. 5SD7481-1
Each
PHP30,217.05(exc. VAT)
Temporarily out of stock
Eaton IZMX Electronic Circuit Breaker 3.2kA IZMX/INX, 3 channels , Withdrawable
  • RS Stock No. 132-878
  • Mfr. Part No. 183748 IZMX40H3-V32W-1
Each
PHP1,526,965.02(exc. VAT)
In Stock
Eaton RCCB, 40A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 230-1065
  • Mfr. Part No. 109274 PFGCM-40/2/003-A
Each
PHP5,016.12(exc. VAT)
In Stock
ABB PS4 4 Phase Busbar, 400V
  • RS Stock No. 231-9647
  • Mfr. Part No. 2CDL240101R1660 PS4/60/16
1 Box of 1
PHP11,027.13(exc. VAT)
Temporarily out of stock
Schneider Electric Horizontal Distribution Length, 1.5m, 630A, Canalis Series
  • RS Stock No. 119-271
  • Mfr. Part No. KSA630ED4154
Each
PHP137,808.08(exc. VAT)
Temporarily out of stock
Hager CEC RCCB, 63A, 1P+N Pole, 100mA, Type AC, 230V ac
  • RS Stock No. 597-966
  • Mfr. Part No. CEC163F
Each
PHP37,887.30(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 13A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-611
  • Mfr. Part No. 102168 FAZ-C13/2-NA
Each
PHP10,556.77(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 20A Curve B, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 244-268
  • Mfr. Part No. 176070 FAZ-B20/1-DC
Each
PHP8,430.75(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 25A, 2 Pole, 300mA, Type A, 110V
  • RS Stock No. 127-424
  • Mfr. Part No. 180606 FRCMM-25/2/03-A-110
Each
PHP10,743.35(exc. VAT)
In Stock
Better World
Schneider Electric, ComPact MCCB, Fixed Mount
  • RS Stock No. 221-0947
  • Mfr. Part No. LV429408
Each
PHP15,041.77(exc. VAT)
Temporarily out of stock
Mersen Surge Protector
  • RS Stock No. 251-3638
  • Mfr. Part No. 83020184 / STPT2-40K275V-2P-TE-M GROUND MONITORING
Each
PHP9,896.86(exc. VAT)
In Stock
Panasonic SMD Non Resettable Fuse 2A, 32V dc
  • RS Stock No. 759-4785P
  • Mfr. Part No. ERBRE2R00V
Each (Supplied on a Reel)
PHP14.801(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3 Phase Busbar, 400V, 18mm Pitch
  • RS Stock No. 328-508
  • Mfr. Part No. 5ST3783-1KL
Each
PHP2,646.52(exc. VAT)
Temporarily out of stock
Siemens 500A size NH3 Square Body Fuse, aR, 440V
  • RS Stock No. 230-2975
  • Mfr. Part No. 3NC3434-6U
Each (In a Pack of 3)
PHP22,120.00(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2821
  • Mfr. Part No. A9XPE110
Each
PHP473.53(exc. VAT)
1
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