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

237 of 999+
Temporarily out of stock
ABB S800S MCB, 3P, 50A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-203
  • Mfr. Part No. 2CCS863001R0501
Each
PHP26,475.68(exc. VAT)
In Stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX160
  • RS Stock No. 260-7717
  • Mfr. Part No. C163TM160
Each
PHP25,750.47(exc. VAT)
In Stock
ABB FH200 RCCB, 40A, 4 Pole, 300mA, Type AC
  • RS Stock No. 183-3637
  • Mfr. Part No. 2CSF204023R3400
Each
PHP12,452.80(exc. VAT)
Temporarily out of stock
Eaton 2A Tag Fuse, 14 x 50mm, 500V
  • RS Stock No. 259-112
  • Mfr. Part No. 2D16R
1 Pack of 10
PHP3,503.74(exc. VAT)
In Stock
Schneider Electric Acti9 A9F MCB, 3P, 40A Curve B, 400V AC, 180V DC, 15 kA Breaking Capacity
  • RS Stock No. 288-7091
  • Mfr. Part No. A9F93340
Each
PHP40,242.59(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 2P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-642
  • Mfr. Part No. 3VA5210-6ED61-0AA0
Each
PHP87,064.53(exc. VAT)
Temporarily out of stock
Eaton Eaton xEffect SASY 60i Busbar
  • RS Stock No. 248-032
  • Mfr. Part No. 107204 BBT-CU-BAR500/720-150
Each (In a Pack of 3)
PHP5,122.00(exc. VAT)
In Stock
Better World
Siemens 5sV3 RCCB, 16A, 2 Pole, 10mA, Type A, 230V ac
  • RS Stock No. 211-9625
  • Mfr. Part No. 5SV3111-6KL
Each
PHP6,317.77(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 346-742
  • Mfr. Part No. C100N35EFM
Each
PHP883,067.91(exc. VAT)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-577
  • Mfr. Part No. 3VA6225-5HM41-0AA0
Each
PHP197,206.32(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact Cover for use with Compact NSX circuit breaker
  • RS Stock No. 211-2657
  • Mfr. Part No. LV432461
Each
PHP2,297.40(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-206
  • Mfr. Part No. 3VA6580-6JQ32-0AA0
Each
PHP542,500.66(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 201-6929
  • Mfr. Part No. 2CSR255080R1164 DS201 C16 AC30
Each
PHP11,725.16(exc. VAT)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 25 kA, Cable Mount
  • RS Stock No. 249-155
  • Mfr. Part No. 3VA6610-5HL46-0AA0
Each
PHP645,135.92(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 10A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-212
  • Mfr. Part No. 102247 FAZ-C10/3-NA
Each
PHP14,882.11(exc. VAT)
In Stock
Schneider Electric RCBO, 6A Current Rating, 1P Poles, Type B, Acti9 Range
  • RS Stock No. 245-088
  • Mfr. Part No. A9D56806
Each
PHP13,479.87(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IULHK11 2 Pole Panel Mount, 7.5A Current Rating
  • RS Stock No. 275-0308
  • Mfr. Part No. IULHK11-1-65-7.50-01
Each
PHP10,441.51(exc. VAT)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - AP17 2 Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0176
  • Mfr. Part No. AP17-1R-65F-103
Each
PHP64,369.14(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 147-963
  • Mfr. Part No. 3VA5212-6ED31-1AA0
Each
PHP110,325.45(exc. VAT)
Temporarily out of stock
Eaton RCCB, 80A, 4 Pole, 300mA, Type A, 230 V ac, 400 V ac
  • RS Stock No. 203-9035
  • Mfr. Part No. 102879 PXF-80/4/03-A
Each
PHP41,990.71(exc. VAT)
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