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

4 的 999+
有庫存
RS PRO F, T Fuse Kit
  • RS庫存編號 893-8534
个
HK$504.00
暫時缺貨
Better World
ABB SN201 MCB, 2P, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS庫存編號 231-9972
  • 製造零件編號 2CSS255101R0064 SN201-C6 -
毎盒：1 个
HK$354.90
暫時缺貨
ABB RCBO, 40A Current Rating, 4P Poles, Type K
  • RS庫存編號 237-5124
  • 製造零件編號 2CSR254101R1407
个
HK$6,152.84
有庫存
Schurter Non-Resettable Fuse Kit
  • RS庫存編號 122-3327
  • 製造零件編號 0034.9856
个
HK$1,120.10
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
Eaton 4A Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 703-8370
  • 製造零件編號 C10G4
个（每托盘 10 ）
HK$10.47
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
暫時無法供應
RS PRO 125mA T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-734
个（每托盘 10 ）
HK$3.549
有限的庫存
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 7A Current Rating
  • RS庫存編號 405-9135
  • 製造零件編號 2-5700-IG1-P10-DD-000040-7A
个
HK$213.30
有庫存
Europa EUC3P EUC MCB, 3P, 16A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 849-6585
  • 製造零件編號 EUC3P16C
个
HK$217.70
有庫存
Bourns Non Resettable Fuse 750mA, 125V ac
  • RS庫存編號 191-4617
  • 製造零件編號 SF-2410FP075T-2
个
HK$4.28
有庫存
Schurter 16A Panel Mount Fuse Holder for 5 x 20mm Fuse, 1P, 250V ac
  • RS庫存編號 173-9654
  • 製造零件編號 3101.0015
个 (以毎盒：100)
HK$20.116
有庫存
Eaton 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 2P, 690V ac
  • RS庫存編號 765-2945
  • 製造零件編號 CHM2DU
个
HK$98.90
有庫存
Littelfuse PC Board Non Resettable Fuse, Axial 500mA, 125V ac/dc
  • RS庫存編號 541-3259
  • 製造零件編號 0251.500NRT1L
个（每托盘 10 ）
HK$6.60
有庫存
Bourns SMD Non Resettable Fuse 15A, 250V ac
  • RS庫存編號 187-8675
  • 製造零件編號 SF-3812F1500T-2
个（每托盘 10 ）
HK$24.85
有限的庫存
Limitor Thermal Fuse +80°C 2.5 A, 250V ac
  • RS庫存編號 176-9148
  • 製造零件編號 P82 80 05100
个
HK$50.60
暫時缺貨
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS庫存編號 209-5010
  • 製造零件編號 3VA1163-3EF32-0AA0
个
HK$2,999.70
有庫存
SIBA 200A Centred Tag Fuse, NH1, 500V ac
  • RS庫存編號 421-788
  • 製造零件編號 20-003-13/200A
个
HK$218.20
有庫存
ABB System Pro M Compact S200M MCB, 3P, 25A Curve D, 400V AC, 15 kA Breaking Capacity
  • RS庫存編號 746-8181
  • 製造零件編號 2CDS273001R0251 S203M-D25
个
HK$740.90
有庫存
Eaton MCB, 1+N, 2A Curve C
  • RS庫存編號 230-1095
  • 製造零件編號 264690 PLG6-C2/1N
个
HK$138.00
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