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

34 的 999+
Better World
Schneider Electric Multi 9 C60BPR MCB, 2P, 15A Curve D, 10 kA Breaking Capacity
  • RS庫存編號 214-2090
  • 製造零件編號 M9F53215
个
HK$1,477.20
Better World
Siemens Sentron 5SY4 MCB, 1+N, 3A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 124-3214
  • 製造零件編號 5SY4503-7
个
HK$613.50
RS PRO 1A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 610-9765
个（每托盘 10 ）
HK$3.79
RS PRO 6.3A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 610-9822
个（每托盘 10 ）
HK$4.59
Eaton 3.2A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 852-7140
  • 製造零件編號 MDL-3-2-10-R
个
HK$9.70
Legrand 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 180-6114
  • 製造零件編號 0 133 02
个 (以毎盒：10)
HK$20.69
ABB S803S MCB, 3P, 80A, UC-B, 750V DC, 50 kA Breaking Capacity
  • RS庫存編號 140-768
  • 製造零件編號 2CCS863001R1805
个
HK$9,209.37
RS PRO 3.5A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 177-8132
个（每托盘 20 ）
HK$3.445
Mersen 500mA FF Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 188-6726
  • 製造零件編號 J084303
个（每托盘 10 ）
HK$30.96
RS PRO 12.5A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 209-9305
个（每托盘 10 ）
HK$16.70
Better World
Siemens SENTRON 5SY MCB, 1P, 2A, Type A
  • RS庫存編號 232-2282
  • 製造零件編號 5SY4102-5
个
HK$385.00
Legrand 8A Ceramic Cartridge Fuse, 8 x 32mm
  • RS庫存編號 266-3090
  • 製造零件編號 0 124 08
毎盒：10 个
HK$374.70
SIBA 5A F Ceramic Cartridge Fuse, 5 x 25mm
  • RS庫存編號 267-3436
  • 製造零件編號 70-010-04/5A
个（每托盘 5 ）
HK$22.42
Schurter 12A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 269-3863
  • 製造零件編號 8020.0603
个
HK$8.90
Eaton 800mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-1228
  • 製造零件編號 S500-800-R
个（每托盘 10 ）
HK$2.26
Legrand 500mA M Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 266-3098
  • 製造零件編號 0 130 95
毎盒：10 个
HK$324.53
Wurth Elektronik 10A PCB Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS庫存編號 893-0599
  • 製造零件編號 696108003002
个（每托盘 10 ）
HK$4.87
Mersen 50A FF Cartridge Fuse, 14 x 51mm
  • RS庫存編號 136-0613
  • 製造零件編號 K1017207 / FR14GR69V50
个
HK$177.80
ABB F200 RCCB, 125A, 4 Pole, 300mA, Type B, 400V ac
  • RS庫存編號 176-9628
  • 製造零件編號 F204B-125/0.3
个
HK$52,365.25
Schneider Electric IID RCCB, 40A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS庫存編號 230-6688
  • 製造零件編號 A9R51440
个
HK$858.21
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