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

47282 產品顯示為 Fuses & Circuit Breakers

38 的 999+
ABB System Pro M Compact S200L MCB, 2P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 183-3622
  • 製造零件編號 2CDS242701R0164
个
HK$357.10
Eaton MEMShield MCB, 1P, 20A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS庫存編號 124-3036
  • 製造零件編號 EMCH120 EMCH120
个
HK$234.20
Hager NEN MCB, 2P, 6A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 144-4961
  • 製造零件編號 NEN206
个
HK$1,429.55
ABB System Pro M Compact S200L MCB, 1P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 183-3626
  • 製造零件編號 2CDS241701R0164
个
HK$223.14
ABB System Pro M Compact S200L MCB, 2P, 10A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 189-5641
  • 製造零件編號 2CDS242701R0104
个
HK$443.30
Siemens Sentron 5SP4 MCB, 3P, 80A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 196-3606
  • 製造零件編號 5SP4380-8
个
HK$3,446.30
Schneider Electric Acti 9 MCB, 3P, 32A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS庫存編號 200-6174
  • 製造零件編號 A9PA4732
个
HK$1,560.40
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 32A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 209-6513
  • 製造零件編號 5SL4432-8
个
HK$2,041.70
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 20A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 209-6510
  • 製造零件編號 5SL4420-8
个
HK$1,761.80
Eaton xEffect FAZ MCB, 1P, 3A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS庫存編號 245-983
  • 製造零件編號 132734 FAZ-B3/1-RT
个
HK$332.03
ABB High Performance S800N MCB, 3P, 100A Curve D, 400V AC, 36 kA Breaking Capacity
  • RS庫存編號 435-320
  • 製造零件編號 2CCG001245R0001
个
HK$2,739.27
Siemens SENTRON 5SY8 MCB, 2P, 300mA Curve D, 230V AC, 70 kA Breaking Capacity
  • RS庫存編號 610-406
  • 製造零件編號 5SY8514-8
个
HK$1,075.17
ABB System Pro M Compact S200 M UC MCB, 1P, 500mA, Type Z, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS庫存編號 202-879
  • 製造零件編號 2CDS271061R0158
个
HK$1,308.19
ABB S800S MCB, 1P, 50A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS庫存編號 140-462
  • 製造零件編號 2CCS861001R0577
个
HK$2,263.38
ABB S804S MCB, 4P, 40A, UC-B, 1000V DC, 50 kA Breaking Capacity
  • RS庫存編號 140-819
  • 製造零件編號 2CCS864001R1405
个
HK$11,422.99
Eaton 3A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 848-3037
  • 製造零件編號 BK-GMA-3-R
个
HK$5.00
nVent SCHROFF Earthing Kit
  • RS庫存編號 454-9795
  • 製造零件編號 21100490
个
HK$80.00
Better World
ABB System Pro M Compact S200M MCB, 2P, 10A Curve B, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 131-911
  • 製造零件編號 2CDS272001R0105 S202M-B10
个
HK$602.40
ABB S803S MCB, 3P, 63A, UC-K, 750V DC, 50 kA Breaking Capacity
  • RS庫存編號 140-277
  • 製造零件編號 2CCS863001R1597
个
HK$9,944.39
Eaton 32A Rail Mount Fuse Holder for A2 Fuse, 1P, 660V ac
  • RS庫存編號 418-467
  • 製造零件編號 CM32F
个
HK$160.30
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