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

3 的 999+
有庫存
Better World
ABB System Pro M Compact S200 MCB, 2P, 25A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7876
  • 製造零件編號 2CDS252001R0251 S202-D25
个
HK$534.00
有庫存
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS庫存編號 123-306
  • 製造零件編號 170802 FRBM6-C40/2/003-LIA
个
HK$1,655.58
有庫存
ABB RCBO, 40A Current Rating, 4P Poles, Type C
  • RS庫存編號 237-5215
  • 製造零件編號 2CSR274101R1404
个
HK$3,881.50
有限的庫存
ABB SN201 MCB, 1+N, 2A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS庫存編號 191-9456
  • 製造零件編號 2CSS245102R0024 SN201 L C2-L
个
HK$151.30
有庫存
Littelfuse 3A Purple Blade Car Fuse, 32V dc
  • RS庫存編號 787-4142
  • 製造零件編號 0287003.PXCN
个（每托盘 10 ）
HK$2.02
有庫存
Eaton Bussmann Series 4A Bolted Tag Fuse, 240V ac, 35mm
  • RS庫存編號 181-8884
  • 製造零件編號 LST4
个
HK$70.42
有庫存
SIBA 16A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3337
  • 製造零件編號 70-007-65/16A
个（每托盘 10 ）
HK$6.81
有庫存
Eaton 125mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-8645
  • 製造零件編號 S500-125-R
个（每托盘 10 ）
HK$24.93
有庫存
Schurter Non-Resettable Wire Ended Fuse 2A, 250V ac
  • RS庫存編號 703-2629
  • 製造零件編號 8020.0517.PT
个（每托盘 10 ）
HK$3.37
有庫存
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
有庫存
Schurter 3.15A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 167-8092
  • 製造零件編號 0034.3122
个（每托盘 10 ）
HK$3.20
有庫存
SIB Copper Earth Bar L. 115mm x W. 35mm x H. 46mm 8 Ways
  • RS庫存編號 270-5240
  • 製造零件編號 P04351
毎盒：5 个
HK$313.50
暫時缺貨
Better World
Siemens SENTRON 5SY6 MCB, 3P, 40A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS庫存編號 209-6021
  • 製造零件編號 5SY6340-7
个
HK$1,249.30
有庫存
SIBA 10A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3330
  • 製造零件編號 70-007-65/10A
个（每托盘 10 ）
HK$4.87
有庫存
Schurter Surface Mount Fuse 3A, 125V ac
  • RS庫存編號 270-7973
  • 製造零件編號 7010.9850.63
个
HK$8.70
有庫存
Socomec 4A F Cartridge Fuse, 10 x 38mm
  • RS庫存編號 223-2789
  • 製造零件編號 60130004
个（每托盘 10 ）
HK$10.02
有庫存
Better World
Siemens RCBO, 16A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS庫存編號 243-6210
  • 製造零件編號 5SU1336-7FP16
个
HK$2,219.00
有庫存
Better World
Schneider Electric RCBO, 40A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3354
  • 製造零件編號 A9DV7740
个
HK$5,525.90
有庫存
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7854
  • 製造零件編號 2CDS252001R0061 S202-D6
个
HK$537.30
有庫存
RS PRO F, T Fuse Kit
  • RS庫存編號 893-8530
个
HK$684.70
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