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

47102 Products showing for Fuses & Circuit Breakers

1 of 999+
有庫存
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 240 V ac AC, 240 V DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0202
個
TWD309.00(exc. VAT)
暫時缺貨
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 32 A, Type D, 400 V ac AC, 60 V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-645
  • Mfr. Part No. 5SY7132-8
個
TWD2,043.00(exc. VAT)
有庫存
ABB 12 Plastic Consumer Unit, 63 A, IEC 60670, EN 60439-3 IP65 MISTRAL65
  • RS Stock No. 811-1892
  • Mfr. Part No. 1SL1202A00 65P12X12
個
TWD1,177.00(exc. VAT)
有庫存
RS PRO 2 A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-413
個 (每包:10個)
TWD10.50(exc. VAT)
有庫存
RS PRO Non-Resettable Fuse, Radial 1.25 A, 250 V
  • RS Stock No. 767-5204
個 (每包:10個)
TWD13.80(exc. VAT)
有庫存
Siemens 63A Bottle Fuse Holder, 1P, 400V ac
  • RS Stock No. 622-0711
  • Mfr. Part No. 5SG1701
個
TWD392.00(exc. VAT)
有庫存
Eaton 12 A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7049
  • Mfr. Part No. MDA-12-R
個
TWD75.00(exc. VAT)
有庫存
RS PRO Non-Resettable Fuse, Radial 500 mA, 250 V
  • RS Stock No. 767-5207
個 (每包:10個)
TWD5.00(exc. VAT)
有庫存
Mersen 10 A AM Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2785
  • Mfr. Part No. H213102
1 盒 10 套
TWD1,174.00(exc. VAT)
暫時缺貨
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 40 A, Type D, 400 V ac AC, 60 V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-385
  • Mfr. Part No. 5SY7140-8
個
TWD2,475.00(exc. VAT)
暫時缺貨
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 32 A, Type C, 400 V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0301
  • Mfr. Part No. 5SY7132-7
個
TWD1,658.00(exc. VAT)
暫時無法供應
Schurter 2.5 A FF Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 865-0274
  • Mfr. Part No. 0034.0905
個 (每包:10個)
TWD221.20(exc. VAT)
有庫存
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 100 V, 12 V, 133 V, 220 V, 240 V, 60 V
  • RS Stock No. 791-3290
  • Mfr. Part No. A9F54106
個
TWD2,044.00(exc. VAT)
暫時缺貨
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 20 A, Type D, 400 V ac AC, 60 V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-535
  • Mfr. Part No. 5SY7120-8
個
TWD1,622.00(exc. VAT)
暫時缺貨
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 50 A, Type D, 400 V ac AC, 60 V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-536
  • Mfr. Part No. 5SY7150-8
個
TWD3,068.00(exc. VAT)
有庫存
ABB 160A Centred Tag Fuse, NH00, 500V
  • RS Stock No. 779-9980
  • Mfr. Part No. OFAF00H160 1SCA022627R1710
個
TWD288.00(exc. VAT)
有庫存
Littelfuse 40 A Green Car Fuse, 32 V
  • RS Stock No. 431-6696
  • Mfr. Part No. 153.5631.5401
個 (每包:5個)
TWD105.60(exc. VAT)
有庫存
Eaton xEffect xEffect Miniature Circuit Breaker, 3-Pole, 10 A, Type D, 415 V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3481
  • Mfr. Part No. 278892 FAZ-D10/3
個
TWD2,898.00(exc. VAT)
有庫存
Eaton 80A British Standard Fuse, LET, 150 V dc, 240V ac, 41.8mm
  • RS Stock No. 156-8844
  • Mfr. Part No. 80LET
個
TWD573.00(exc. VAT)
有庫存
Eaton xEffect xEffect Miniature Circuit Breaker, 3-Pole, 4 A, Type D, 415 V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3605
  • Mfr. Part No. 278888 FAZ-D4/3
個
TWD3,380.00(exc. VAT)
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