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 產品顯示為 Fuses & Circuit Breakers

9 的 999+
有限的庫存
Limitor Thermal Fuse +150°C 5 A, 250V ac
  • RS庫存編號 124-5062
  • 製造零件編號 A8-5AF
个（每托盘 5 ）
HK$7.70
有庫存
RS PRO LBC Fuse Kit
  • RS庫存編號 611-8977
个
HK$1,230.10
有庫存
Schurter 1A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 789-7797
  • 製造零件編號 0001.2504
个 (以毎袋：10)
HK$5.93
有庫存
Schurter PC Board Non Resettable Fuse, Radial 500mA, 250V ac
  • RS庫存編號 284-5300
  • 製造零件編號 0034.6612
个（每托盘 10 ）
HK$2.32
正在逐步停售
RS PRO 5A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-532
个（每托盘 10 ）
HK$2.99
有庫存
Siemens 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 1P, 690V ac
  • RS庫存編號 203-2048
  • 製造零件編號 3NW7013
个
HK$80.90
有庫存
Selco Thermal Fuse +240°C 10 A, 250V ac
  • RS庫存編號 111-7813
  • 製造零件編號 SWTC-464-3535
个（每托盘 10 ）
HK$14.27
有庫存
SIBA 1.6A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3305
  • 製造零件編號 70-007-65/1.6A
个（每托盘 10 ）
HK$5.70
有庫存
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
有庫存
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
有庫存
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
暫時缺貨
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
有庫存
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
有庫存
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
暫時缺貨
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS庫存編號 790-9471
  • 製造零件編號 A9D56632
个
HK$1,967.80
暫時缺貨
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
有庫存
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 10A Current Rating
  • RS庫存編號 333-271
  • 製造零件編號 201-10A
个
HK$309.80
有庫存
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
暫時缺貨
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
有庫存
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
1
9
2364
每頁顯示的結果

相关链接