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

140 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 655-152
  • Mfr. Part No. C11F6TM100L
Each
PHP43,917.86(exc. VAT)
Temporarily out of stock
Eaton xEffect xEffect - FAZ-T MCB, 2P, 25A Curve D, 415V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 129-327
  • Mfr. Part No. 142490 FAZT-D25/2
Each
PHP13,104.54(exc. VAT)
In Stock
Eaton 6A DI Bottle Fuse, E16 Thread Size, gG, 500V ac
  • RS Stock No. 181-8523
  • Mfr. Part No. 6D16
Each (In a Box of 10)
PHP486.512(exc. VAT)
In Stock
Bourns 0.065A Resettable Fuse, 220V
  • RS Stock No. 692-6778P
  • Mfr. Part No. CMF-RL50-0
Each (Supplied in a Bag)
PHP32.01(exc. VAT)
In Stock
ABB System Pro M Compact S300P MCB, 1P, 13A Curve C, 240V AC, 72V DC, 25 kA Breaking Capacity
  • RS Stock No. 201-285
  • Mfr. Part No. 2CDS381001R0134
Each
PHP6,992.64(exc. VAT)
In Stock
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 232-0208
  • Mfr. Part No. 1SDA066668R1 HTC XT3 2PCS
Each
PHP1,774.53(exc. VAT)
Temporarily out of stock
Eaton xComfort KLV Fixing Bracket for use with KLV Distribution Board, KLV Multimedia
  • RS Stock No. 125-111
  • Mfr. Part No. 178916 AVV-KLV
Each
PHP798.86(exc. VAT)
Temporarily out of stock
Lovato Add-on blocks Phase Barrier for use with GL Series Switch Disconnectors
  • RS Stock No. 248-5573
  • Mfr. Part No. GLX903
Each
PHP6,225.45(exc. VAT)
In Stock
Eaton 25A Clear Blade Car Fuse, 32V dc
  • RS Stock No. 852-7354
  • Mfr. Part No. ATC-25
Each
PHP66.39(exc. VAT)
Temporarily out of stock
Phoenix Contact Thermal Magnetic Circuit Breaker - TMC 2 Pole 250V ac Voltage Rating DIN Rail, 5A Current Rating
  • RS Stock No. 135-908
  • Mfr. Part No. 0915030
1 Pack of 3
PHP29,818.36(exc. VAT)
Temporarily out of stock
Mersen 315A Bolted Tag Fuse, B4, 460 V dc, 690V ac, 111mm
  • RS Stock No. 178-1142
  • Mfr. Part No. N1006630 / BTMF69V315M400
Each
PHP9,938.37(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 4P, 10A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 202-970
  • Mfr. Part No. 2CDS274001R0104
Each
PHP26,386.69(exc. VAT)
Temporarily out of stock
Eaton 25A DIN Rail Mount 6.3 x 32mm Fuse Block, 300V
  • RS Stock No. 233-0627
  • Mfr. Part No. BK-S-8301-1X-DIN
1 Box of 198
PHP62,257.40(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 4 kA, Fixed Mount
  • RS Stock No. 232-034
  • Mfr. Part No. 109666 NZMC3-A400
Each
PHP134,892.06(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 127-746
  • Mfr. Part No. 183453 IZMX16H4-P08F-1
Each
PHP709,164.73(exc. VAT)
Temporarily out of stock
ABB Surge Arrester, 20kA
  • RS Stock No. 246-2248
  • Mfr. Part No. 2CCF606000R0001
Each
PHP25,848.92(exc. VAT)
In Stock
Eaton 10A British Standard Fuse, A1, 550V ac, 44.5mm
  • RS Stock No. 414-623
  • Mfr. Part No. NIT10
Each (In a Pack of 5)
PHP437.984(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 20A Curve B, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-978
  • Mfr. Part No. 2CDS271061R0205
Each
PHP10,941.38(exc. VAT)
Temporarily out of stock
Eaton 32A Bolted Tag Fuse, 240V ac, 35mm
  • RS Stock No. 181-8489
  • Mfr. Part No. STD32
1 Box of 20
PHP4,935.16(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4115 MCB, 1P, 2A Curve C, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-833
  • Mfr. Part No. 5SJ4115-7HG41
Each
PHP5,319.11(exc. VAT)
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