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

46963 產品顯示為 Fuses & Circuit Breakers

1 的 999+
有庫存
Siemens 5SV3 RCCB, 40A, 2 Pole, 30mA, Type A
  • RS庫存編號 124-7729
  • 製造零件編號 5SV3314-6
个
HK$751.10
有庫存
Mersen 1A FF Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 188-6732
  • 製造零件編號 K084304
个（每托盘 10 ）
HK$39.671
有庫存
SIBA 4A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3315
  • 製造零件編號 70-007-65/4A
个（每托盘 10 ）
HK$7.09
有庫存
Littelfuse 20A Base Mount Fuse Holder for 6.3 x 32mm Fuse, 1P, 300V ac
  • RS庫存編號 787-4316
  • 製造零件編號 03540821ZXBL
个（每托盘 5 ）
HK$9.14
有庫存
Schurter 10A Panel Mount Fuse Holder for 5 x 20mm Fuse, 1P
  • RS庫存編號 789-7854
  • 製造零件編號 4301.1407
个
HK$27.50
暫時缺貨
Eaton FAZ Miniature Circuit Breaker, 3-Pole, 25 A, Type C, 415 V ac AC, 60 V DC, 15 kA Breaking Capacity
  • RS庫存編號 230-1341
  • 製造零件編號 278977 FAZ-C25/3N
个
HK$1,360.60
有庫存
Eaton 100A British Standard Fuse, A4, 415V ac, 94mm
  • RS庫存編號 156-8658
  • 製造零件編號 CEO100M160
个
HK$304.70
有庫存
Mersen 100A German Standard Fuse, NH00, 690V ac, 77mm
  • RS庫存編號 287-0889
  • 製造零件編號 E330238
个
HK$606.20
有庫存
Lovato Modulo Modulo Miniature Circuit Breaker, 3-Pole, 63 A, Type C, 400 V AC, 10 kA Breaking Capacity
  • RS庫存編號 825-5860
  • 製造零件編號 P1MB3PC63
个
HK$734.10
暫時缺貨
Schurter 500mA T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 269-3865
  • 製造零件編號 8020.5008
个
HK$5.50
有庫存
Schurter 16A PCB Mount Fuse Holder for 6.3 x 32mm Fuse, 400V ac
  • RS庫存編號 866-4750
  • 製造零件編號 0031.3822
个（每托盘 10 ）
HK$30.64
有庫存
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
有庫存
RS PRO 12.5A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 209-9282
个（每托盘 10 ）
HK$8.15
有庫存
Schurter SMD Non Resettable Fuse 1A, 125V ac/dc
  • RS庫存編號 782-3737
  • 製造零件編號 7010.9810.63
个（每托盘 10 ）
HK$16.15
有庫存
Schurter SMD Non Resettable Fuse 63mA, 125V ac/dc
  • RS庫存編號 173-9900
  • 製造零件編號 3404.0003.11
个 (以毎袋：100)
HK$6.234
有庫存
Schneider Electric Acti9 Acti9 Miniature Circuit Breaker, 1-Pole, 10 A, Type B, 230 V ac AC, 4.5 kA Breaking Capacity
  • RS庫存編號 191-6078
  • 製造零件編號 A9P12610
个
HK$425.80
有庫存
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 25 A, Type D, 400 V ac AC, 125 V DC, 6 kA Breaking
  • RS庫存編號 746-7876
  • 製造零件編號 2CDS252001R0251 S202-D25
个
HK$534.00
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
Siemens SENTRON 5SY4 Miniature Circuit Breaker, 1-Pole, 3 A, Type C, 400 V AC, 60 V DC
  • RS庫存編號 622-0020
  • 製造零件編號 5SY4103-7
个
HK$409.80
有庫存
Eaton 16A Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 703-8399P
  • 製造零件編號 C10G16
个 (以每盒裝提供)
HK$15.19
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