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
Fuses - PCB
Fuses - PCB

50481 Products showing for Fuses & Circuit Breakers

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1 / 999+
In Stock
RS PRO, RS Circuit Breaker 3-Pole 1kA, Breaking Capacity 70 kA, Panel Mount
  • RS Stock No. 683-389
Subtotal (1 unit)
MYR5,751.01
MYR5,751.01/unit
In Stock
RS Better World
ABB, XT2L, 1SDA06 Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 150 kA, Fixed
  • RS Stock No. 236-6625
  • Mfr. Part No. 1SDA068166R1 XT2L 160 BLOC FF
Subtotal (1 unit)
MYR2,491.27
MYR2,491.27/unit
In Stock
L-Com Surge Protector, DIN Rail
  • RS Stock No. 297-413
  • Mfr. Part No. ELPD-CAT6
Subtotal (1 unit)
MYR634.64
MYR634.64/unit
In Stock
Mersen 6A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 247-2906
  • Mfr. Part No. T218195
Subtotal (1 box of 10 units)
MYR220.95
MYR220.95/box
Stocked by manufacturer
RS Better World
Schneider Electric Surge Protector
  • RS Stock No. 822-7966
  • Mfr. Part No. LV429407
Subtotal (1 unit)
MYR1,550.47
MYR1,550.47/unit
In Stock
nVent ERIFLEX Brass ERIFLEX 56866 Busbar
  • RS Stock No. 277-6178
  • Mfr. Part No. 568662
Subtotal (1 unit)
MYR154.04
MYR154.04/unit
In Stock
RS Better World
Siemens, SENTRON, SENTRON Molded Case Circuit Breaker 3-Pole 32A, Breaking Capacity 25 kA, Fixed
  • RS Stock No. 874-4269
  • Mfr. Part No. 3VA1132-3EE36-0AA0
Subtotal (1 unit)
MYR2,310.36
MYR2,310.36/unit
In Stock
ABB, SACE Tmax XT, XT2S Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 85 kA, Fixed
  • RS Stock No. 232-0263
  • Mfr. Part No. 1SDA067560R1 XT2S 160 TMA 160A FF
Subtotal (1 unit)
MYR2,869.52
MYR2,869.52/unit
In Stock
ABB System Pro M Compact S300P Miniature Circuit Breaker, 1-Pole, 1A, Type Z, 240V ac AC, 72 V dc DC, 100 kA Breaking
  • RS Stock No. 204-442
  • Mfr. Part No. 2CDS381001R0218
Subtotal (1 unit)
MYR829.91
MYR829.91/unit
In Stock
ABB, SACE Tmax XT, XT5N Molded Case Circuit Breaker 3-Pole 400A, Breaking Capacity 70 kA, Fixed
  • RS Stock No. 231-9327
  • Mfr. Part No. 1SDA100345R1 XT5N 400 TMA 400-4000 3pFF
Subtotal (1 unit)
MYR5,917.01
MYR5,917.01/unit
In Stock
ABB 50A Centred Tag Fuse NH000 500V
  • RS Stock No. 779-9962
  • Mfr. Part No. OFAF000H50 1SCA022627R1210
Subtotal (1 unit)
MYR32.70
MYR32.70/unit
In Stock
Europa EUC2P EUC2P Miniature Circuit Breaker, 2-Pole, 4A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6535
  • Mfr. Part No. EUC2P4C
Subtotal (1 unit)
MYR77.26
MYR77.26/unit
In Stock
TE Connectivity 30A Rail Mount Fuse Holder
  • RS Stock No. 299-068
  • Mfr. Part No. 1SNF100023R0000
Subtotal (1 pack of 5 units)
MYR116.20
MYR116.20/pack
In Stock
Legrand 1A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 180-6113
  • Mfr. Part No. 0 133 01
Subtotal (1 box of 10 units)
MYR189.80
MYR18.98/unit
In Stock
RS Better World
ABB System Pro M Compact System Pro M Compact Miniature Circuit Breaker, 1-Pole, 32A, Type D, 253V ac AC, 72 V dc DC, 6
  • RS Stock No. 527-9504
  • Mfr. Part No. 2CDS251001R0321 S201-D32
Subtotal (1 unit)
MYR116.64
MYR116.64/unit
In Stock
Littelfuse 80mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4268
  • Mfr. Part No. 0217.080MXP
Subtotal (1 pack of 10 units)
MYR52.19
MYR5.219/unit
In Stock
ABB 20A Centred Tag Fuse NH000 500V
  • RS Stock No. 779-9959
  • Mfr. Part No. OFAF000H20 1SCA022627R0740
Subtotal (1 unit)
MYR33.11
MYR33.11/unit
In Stock
ABB F200 Series Residual Current Circuit Breaker, 40A, 2-Pole, 30 mA, Type A 230V ac
  • RS Stock No. 231-9899
  • Mfr. Part No. 2CSF202101R1400 F202 A-40/0.03
Subtotal (1 box of 1 unit)
MYR1,231.78
MYR1,231.78/box
In Stock
Eaton 16A gG/gL Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-265
  • Mfr. Part No. C10G16 CYLINDRICAL FUSE 10 x 38 16A GG 500V AC
Subtotal (1 pack of 10 units)
MYR109.00
MYR109.00/pack
In Stock
RS PRO Residual Current Circuit Breaker, 25A, 2-Pole, 300 mA, Type A 230V ac
  • RS Stock No. 284-2368
Subtotal (1 unit)
MYR351.70
MYR351.70/unit
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