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

33483 Products showing for Fuses & Circuit Breakers

8 of 999+
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 160A, Fixed Mount
  • RS Stock No. 232-0258
  • Mfr. Part No. 1SDA067428R1 XT1N 160 TMD 160A FF
Each
PHP50,792.88(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 32A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-924
  • Mfr. Part No. A9K12332
Each
PHP2,066.70(exc. VAT)
Europa 3 Phase Distribution Board, 30 Way, 125 A
  • RS Stock No. 849-6412
  • Mfr. Part No. TPN10
Each
PHP37,140.04(exc. VAT)
Better World
Schneider Electric, NSX Range MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 849-3964
  • Mfr. Part No. LV429632
Each
PHP16,393.43(exc. VAT)
Schneider Electric Compact Undervoltage Release for use with NS630b
  • RS Stock No. 354-356
  • Mfr. Part No. 33822
Each
PHP31,523.69(exc. VAT)
ABB, Tmax XT MCCB 3P 100A, Breaking Capacity 36 kA, Panel Mount
  • RS Stock No. 831-9172
  • Mfr. Part No. 1SDA067416R1 XT1N 160 TMD 100-1000 3p F F
Each
PHP20,403.07(exc. VAT)
Eaton RCD, 10A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8715
  • Mfr. Part No. 236082 PKNM-10/1N/C/003-A-MW
Each
PHP9,697.86(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 200A, Breaking Capacity 14 kA, DIN Rail Mount
  • RS Stock No. 432-912
  • Mfr. Part No. NJDF36200TW
Each
PHP223,887.82(exc. VAT)
Schneider Electric Masterpact Control Unit for use with Masterpact NT/NW Series Circuit Breaker
  • RS Stock No. 247-1888
  • Mfr. Part No. 47280
Each
PHP210,978.54(exc. VAT)
ABB F200 RCCB, 40A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 537-7361
  • Mfr. Part No. 2CSF202001R1400 F202 AC-40/0,03
Each
PHP12,266.84(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 100A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9718
  • Mfr. Part No. LV510307
Each
PHP26,407.01(exc. VAT)
Siemens ALPHA Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Each
PHP2,071.93(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 200A, Fixed Mount
  • RS Stock No. 254-6360
  • Mfr. Part No. C25N3TM200
Each
PHP131,699.65(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 20A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Each
PHP1,621.75(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 232-0216
  • Mfr. Part No. 1SDA066807R1 XT1B 160 TMD 100A FF
Each
PHP18,828.69(exc. VAT)
Better World
Schneider Electric, Compact Nsx, 630A, POWERTAG, 500VA
  • RS Stock No. 221-1276
  • Mfr. Part No. LV432652
Each
PHP180,522.70(exc. VAT)
L-Com Surge Protector, DIN Rail Mount
  • RS Stock No. 297-413
  • Mfr. Part No. ELPD-CAT6
Each
PHP7,945.14(exc. VAT)
Better World
Schneider Electric Surge Arrester, 40kA, 800V ac, DIN Rail Mount
  • RS Stock No. 219-8275
  • Mfr. Part No. A9L40271
Each
PHP15,018.20(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 4A Curve C, 240V AC, 72V DC, 50 kA Breaking Capacity
  • RS Stock No. 776-3449
  • Mfr. Part No. A9F74104
Each
PHP4,981.47(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV3P 3 Pole 690V ac Voltage Rating DIN Rail Mount, 73A Current Rating
  • RS Stock No. 188-4747
  • Mfr. Part No. GV3P73
Each
PHP15,189.27(exc. VAT)
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