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

47266 產品顯示為 Fuses & Circuit Breakers

9 的 999+
Lovato 32A Rail Mount Fuse Holder, 1P, 690V ac
  • RS庫存編號 188-1613
  • 製造零件編號 FB01B1P
个
HK$46.70
Eaton 20A Rail Mount Fuse Holder for A1 Fuse, 1P, 690V ac
  • RS庫存編號 221-601
  • 製造零件編號 RS20P/G/WHI
个
HK$488.20
Mersen 63A FF Cartridge Fuse, 22 x 58mm
  • RS庫存編號 136-0591
  • 製造零件編號 D1018627 / FR22GR69V63T
个
HK$293.80
Mersen 100A NH Fuse, NH00, 690V ac
  • RS庫存編號 448-3415
  • 製造零件編號 D320163
个
HK$724.87
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type A
  • RS庫存編號 186-3467
  • 製造零件編號 2CSF202124R1630
个
HK$983.60
Eaton xEffect MCB, 4P, 63A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4734
  • 製造零件編號 239224 FAZ6-C63/4
个
HK$1,766.40
Littelfuse 1.6A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-4404
  • 製造零件編號 021701.6MXP
个（每托盘 10 ）
HK$2.10
Eaton 32A Bolted Tag Fuse, F2, 415V ac
  • RS庫存編號 181-8622
  • 製造零件編號 NSD32M40
个
HK$484.30
Littelfuse 4A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-3748
  • 製造零件編號 0217004.MXP
个（每托盘 10 ）
HK$2.58
Eaton 1.6A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-1357
  • 製造零件編號 S506-1.6-R
个（每托盘 10 ）
HK$23.50
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS庫存編號 270-4678
  • 製造零件編號 3VA2140-7MP32-0AA0
个
HK$11,072.30
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 10A Curve C, 400V AC, 12 → 250V DC, 6 kA Breaking Capacity
  • RS庫存編號 734-9169
  • 製造零件編號 A9F77410
个
HK$1,549.40
Eaton xEffect MCB, 3P, 6A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 624-0428
  • 製造零件編號 278867 FAZ-C6/3
个
HK$950.70
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 20A Curve C, 440V AC, 133V DC, 10 kA Breaking Capacity
  • RS庫存編號 776-2360
  • 製造零件編號 A9F07320
个
HK$465.40
Better World
ABB System Pro M Compact S200 MCB, 1+N, 4A Curve C, 253V AC, 72V DC, 20 kA Breaking Capacity
  • RS庫存編號 231-9673
  • 製造零件編號 2CDS251103R0044 S201-C 4 N
毎盒：1 个
HK$469.60
Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 6A Curve D, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS庫存編號 211-2438
  • 製造零件編號 M9F43106
个
HK$464.30
Better World
ABB System Pro M Compact S200M MCB, 2P, 16A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 132-122
  • 製造零件編號 2CDS272001R0164 S202M-C16
个
HK$542.70
Siemens 250A NH Fuse, NH1, 690 / 400V ac/dc
  • RS庫存編號 269-8351
  • 製造零件編號 3ND2144
个（每托盘 3 ）
HK$261.633
ETA Thermal Circuit Breaker - 1410-L Single Pole 250V Voltage Rating PCB Mount, 1A Current Rating
  • RS庫存編號 409-766
  • 製造零件編號 1410-L210-L2F1-S02-1A
个
HK$112.00
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 6A Current Rating
  • RS庫存編號 782-6607
  • 製造零件編號 W28-XQ1A-6
个
HK$29.70
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