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

172 of 999+
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 6 kA, Fixed Mount
  • RS Stock No. 243-054
  • Mfr. Part No. 191660 NZMS2-4-VX160
Each
PHP127,341.03(exc. VAT)
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 90A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 231-200
  • Mfr. Part No. 107642 NZMN2-AF90-BT-NA
Each
PHP58,722.03(exc. VAT)
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-822
  • Mfr. Part No. KV 2624
Each
PHP7,685.12(exc. VAT)
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 247-084
  • Mfr. Part No. 100778 NZMH2-VE160-S1
Each
PHP146,328.56(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 231-334
  • Mfr. Part No. 113023 NZMB2-A63-KCU-NA
Each
PHP40,980.79(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 230-381
  • Mfr. Part No. 113336 NZMH2-A250-SVE
Each
PHP128,367.39(exc. VAT)
Siemens, SENTRON MCCB 3P 15A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-603
  • Mfr. Part No. 3VA5195-1MU31-0AA0
Each
PHP34,278.32(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 80A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 358-465
  • Mfr. Part No. NHDF36080TW
Each
PHP112,773.42(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 80A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9416
  • Mfr. Part No. 3VA1180-3GF46-0AA0
Each
PHP45,508.22(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 16A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9444
  • Mfr. Part No. 3VA1196-3ED22-0AA0
Each
PHP17,925.06(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 230-780
  • Mfr. Part No. 115260 NZMB2-M125-BT
Each
PHP60,188.25(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 18.5 kA, Plug In
  • RS Stock No. 229-542
  • Mfr. Part No. 113216 NZMB2-4-A250/160-SVE
Each
PHP132,179.55(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7872
  • Mfr. Part No. C25B44V160
Each
PHP229,849.24(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 237-6290
  • Mfr. Part No. 1SDA067234R1
Each
PHP16,455.12(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5168
  • Mfr. Part No. 3VA2163-5KP32-0AA0
Each
PHP83,291.82(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7446
  • Mfr. Part No. C10S4D
Each
PHP35,725.02(exc. VAT)
Hager NGN MCB, 2P, 10A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4761
  • Mfr. Part No. NGN210
Each
PHP8,658.64(exc. VAT)
Better World
Schneider Electric Surge Suppressor Unit, 127 → 240V ac
  • RS Stock No. 210-9822
  • Mfr. Part No. LA4FRCP
Each
PHP7,757.10(exc. VAT)
Siemens SENTRON 5SY4 MCB, 3P, 1.6A, Type A, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-302
  • Mfr. Part No. 5SY4315-5
Each
PHP13,647.51(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 63A, Fixed Mount
  • RS Stock No. 232-0239
  • Mfr. Part No. 1SDA067069R1 XT2N 160 Ekip LSI 63A FF
Each
PHP84,310.62(exc. VAT)
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