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

173 of 999+
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3199
  • Mfr. Part No. A9F53210
Each
PHP8,486.41(exc. VAT)
Siemens 230V ac Circuit Trip
  • RS Stock No. 213-2453
  • Mfr. Part No. 5TT4121-0
Each
PHP5,802.88(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4110
  • Mfr. Part No. 3VA2116-7KP36-0AA0
Each
PHP159,601.28(exc. VAT)
Eaton 200A British Standard Fuse, 660 V ac, 350V dc, 81.7mm
  • RS Stock No. 414-960
  • Mfr. Part No. GSGB200
Each
PHP9,492.40(exc. VAT)
Better World
Schneider Electric iID RCCB, 40A, 2 Pole, 30mA
  • RS Stock No. 734-9349
  • Mfr. Part No. A9R11240
Each
PHP11,032.38(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 350A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 243-032
  • Mfr. Part No. 191597 NZMN3-MX350-SVE
Each
PHP179,978.26(exc. VAT)
Eaton 2A Bolted Tag Fuse, 240V ac, 35mm
  • RS Stock No. 181-8576
  • Mfr. Part No. STD2
1 Box of 20
PHP4,203.94(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 272-0197
  • Mfr. Part No. 3VA2116-8JQ42-0AA0
Each
PHP197,136.08(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 240-935
  • Mfr. Part No. 191648 NZMS2-VX160
Each
PHP90,832.21(exc. VAT)
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 230-944
  • Mfr. Part No. 107792 NZMN2-A100-BT-NA
Each
PHP58,722.03(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 7.5 kA, Plug In
  • RS Stock No. 230-363
  • Mfr. Part No. 112757 NZMN1-A40-SVE
Each
PHP36,728.76(exc. VAT)
Eaton 40A Orange Blade Car Fuse, 32V dc No
  • RS Stock No. 852-7358
  • Mfr. Part No. ATC-40
Each
PHP54.27(exc. VAT)
Siemens ALPHA Distribution Board, 4 Way
  • RS Stock No. 211-6073
  • Mfr. Part No. 8GB1371-0
Each
PHP2,082.22(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 6 kA, Plug In
  • RS Stock No. 249-002
  • Mfr. Part No. 191544 NZMS3-4-VX630/VAR-SVE
Each
PHP337,670.01(exc. VAT)
HENSEL ENYMOD Distribution Board
  • RS Stock No. 117-642
  • Mfr. Part No. BE 44
Each
PHP2,082.81(exc. VAT)
Bourns 60A Tag Fuse, 38mm, 170V dc, 24.1mm
  • RS Stock No. 254-4233
  • Mfr. Part No. PF-NT5-60
Each
PHP1,866.72(exc. VAT)
Siemens, SENTRON MCCB 2P 15A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 147-612
  • Mfr. Part No. 3VA5195-4ED21-1AA0
Each
PHP32,537.83(exc. VAT)
Schneider Electric, Powerpact Circuit breaker 2P 15A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 444-300
  • Mfr. Part No. BGL26015LU
Each
PHP50,228.96(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 200A 250V EZC, Fixed
  • RS Stock No. 588-952
  • Mfr. Part No. EZC250H4200
Each
PHP26,360.07(exc. VAT)
Eaton RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBdM Range
  • RS Stock No. 120-977
  • Mfr. Part No. 168201 FRBDM-C6/2/003-G/A
Each
PHP13,707.08(exc. VAT)
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