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

236 of 999+
In Stock
SIBA 500A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1839
  • Mfr. Part No. 9005805.500
Each
PHP566.58(exc. VAT)
In Stock
Eaton 315A Centred Tag Fuse, NH00, 690V
  • RS Stock No. 182-1833
  • Mfr. Part No. 170M1572D
Each
PHP7,363.88(exc. VAT)
In Stock
Panasonic SMD Non Resettable Fuse 2A, 32V dc
  • RS Stock No. 759-4785
  • Mfr. Part No. ERBRE2R00V
Each (In a Pack of 10)
PHP14.801(exc. VAT)
Temporarily out of stock
ABB 250A Tag Fuse, 125 x 40 x 60mm, 500V
  • RS Stock No. 251-3502
  • Mfr. Part No. 1SCA022629R5310
1 Box of 3
PHP4,134.94(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4206 MCB, 2P, 6A Curve D, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-666
  • Mfr. Part No. 5SJ4206-8HG41
Each
PHP13,049.34(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 1.5A, 63V
  • RS Stock No. 252-2184
Each (On a Tape of 4000)
PHP8.503(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 8A, 63V
  • RS Stock No. 252-2182
Each (On a Tape of 4000)
PHP9.826(exc. VAT)
In Stock
Siemens 63A NH Fuse, NH00, 500V ac
  • RS Stock No. 396-089
  • Mfr. Part No. 3NA3822-7
Each (In a Pack of 3)
PHP503.973(exc. VAT)
Temporarily out of stock
Hager MCCB 4P 125A, Breaking Capacity 2 kA, DIN Rail Mount
  • RS Stock No. 144-4931
  • Mfr. Part No. HCA126H
Each
PHP40,466.35(exc. VAT)
Temporarily out of stock
SENTRON Motor Operator for use with 3VA13/14, 3VA23/24 Series
  • RS Stock No. 263-824
  • Mfr. Part No. 3VA9467-0HC30
Each
PHP101,902.15(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 2P, 20A Curve D, 400V AC, 72V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-480
  • Mfr. Part No. 5SY8220-8BB08
Each
PHP5,789.18(exc. VAT)
Temporarily out of stock
ABB RCBO, 50A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5185
  • Mfr. Part No. 2CSR273101R1505
Each
PHP31,343.53(exc. VAT)
Temporarily out of stock
ABB RCBO, 32A Current Rating, 2P Poles, 100mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6912
  • Mfr. Part No. 2CSR275080R2324
Each
PHP9,751.65(exc. VAT)
Temporarily out of stock
Eaton 1 Phase Industrial Surge Protection, 15kA, 277V ac, Flange Mount Mount
  • RS Stock No. 236-5201
  • Mfr. Part No. LS15K-KP30-277V-P
Each (In a Box of 5)
PHP2,604.496(exc. VAT)
Temporarily out of stock
ABB Tmax XT Auxiliary Contact for use with Tamx XT
  • RS Stock No. 236-6882
  • Mfr. Part No. 1SDA104815R1 AUP-I XT5-6 P/W 3 250V
Each
PHP8,603.72(exc. VAT)
In Stock
Littelfuse SMD Non Resettable Fuse 750mA, 125V ac/dc
  • RS Stock No. 541-3366
  • Mfr. Part No. 0451.750HL
Each (In a Pack of 10)
PHP23.885(exc. VAT)
In Stock
Eaton 25A DII Bottle Fuse, E27 Thread Size, gG, 500V ac
  • RS Stock No. 181-8474
  • Mfr. Part No. 25D27
1 Box of 25
PHP3,286.65(exc. VAT)
Temporarily out of stock
Siemens Support
  • RS Stock No. 231-3158
  • Mfr. Part No. 8WH9143-0AF01
Each (In a Pack of 50)
PHP30.754(exc. VAT)
Temporarily out of stock
Schneider Electric K Residual Current Circuit Breaker, 63A, 2P Pole, 100mA, Type AC, 220 → 240V ac
  • RS Stock No. 588-938
  • Mfr. Part No. A9KR15263
Each
PHP2,419.03(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4216 MCB, 2P, 16A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-805
  • Mfr. Part No. 5SJ4216-8HG42
Each
PHP11,436.50(exc. VAT)
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