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

47265 Products showing for Fuses & Circuit Breakers

136 of 999+
  • RS Stock No. 212-1985
  • Mfr. Part No. 3130-F120-P7T1-W02Q-10A
Each
HK$335.30
  • RS Stock No. 282-7070
  • Mfr. Part No. 187456 PFIM-40/4/003-G/F
Each
HK$2,075.40
  • RS Stock No. 266-565
  • Mfr. Part No. 3VW9011-0AL02
1 Kit
HK$759.20
  • RS Stock No. 232-0243
  • Mfr. Part No. 1SDA067391R1 XT1C 160 TMD 25A FF
Each
HK$2,523.28
  • RS Stock No. 637-6404
  • Mfr. Part No. PRCP-R090-0-9-99
Each (In a Pack of 10)
HK$4.967
  • RS Stock No. 429-179
  • Mfr. Part No. C12N34V160B
Each
HK$29,862.97
Better World
  • RS Stock No. 160-136
  • Mfr. Part No. 3RV2341-4FC10
Each
HK$2,834.50
  • RS Stock No. 247-084
  • Mfr. Part No. 100778 NZMH2-VE160-S1
Each
HK$18,564.20
  • RS Stock No. 849-6594
  • Mfr. Part No. EUC3P20C
Each
HK$276.50
  • RS Stock No. 130-910
  • Mfr. Part No. LV432464
Each
HK$47,604.45
  • RS Stock No. 488-7328
  • Mfr. Part No. 2CDS251001R0324 - S201C32
Each
HK$186.50
  • RS Stock No. 250-149
  • Mfr. Part No. 3VA6580-6JQ32-2AA0
Each
HK$68,220.60
  • RS Stock No. 783-3324
  • Mfr. Part No. 70-007-65/5A
Each (In a Pack of 10)
HK$5.89
  • RS Stock No. 703-8752
  • Mfr. Part No. 315NHG03B
Each
HK$104.90
  • RS Stock No. 204-308
  • Mfr. Part No. 2CDS271001R0607
Each
HK$1,361.38
  • RS Stock No. 276-8941
  • Mfr. Part No. R9ERA263
Each
HK$1,760.24
  • RS Stock No. 876-1936P
  • Mfr. Part No. 3404.2469.22
Each (Supplied on a Reel)
HK$9.28
  • RS Stock No. 157-845
  • Mfr. Part No. 3RV1912-1CP0
Each
HK$388.70
Better World
  • RS Stock No. 132-138
  • Mfr. Part No. 2CDS272001R0134 S202M-C13
Each
HK$562.40
  • RS Stock No. 201-5575
  • Mfr. Part No. 2906821
Each
HK$1,018.70
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