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

33502 Products showing for Fuses & Circuit Breakers

176 of 999+
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS Stock No. 629-390
  • Mfr. Part No. 8GK4730-2KK22
Each
PHP9,758.70(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4131
  • Mfr. Part No. 3VA2116-8JP32-0AA0
Each
PHP143,169.08(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 8A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-542
  • Mfr. Part No. 102146 FAZ-D8/1-RT
Each
PHP4,816.53(exc. VAT)
Temporarily out of stock
ABB Tmax T Cover for use with Tmax T
  • RS Stock No. 232-0117
  • Mfr. Part No. 1SDA054958R1 HTC T4 F
Each
PHP3,446.36(exc. VAT)
In Stock
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 130-871
  • Mfr. Part No. A9D50210
Each
PHP44,141.43(exc. VAT)
Temporarily out of stock
ABB Tmax XT 3 Changeover Contact for use with Tmax XT
  • RS Stock No. 237-6070
  • Mfr. Part No. 1SDA066426R1 AUX-C 3Q 250V GAUCHE XT1
Each
PHP9,096.27(exc. VAT)
In Stock
ABB Connecting Terminals for use with DS941, DS951, SN201
  • RS Stock No. 231-9916
  • Mfr. Part No. 2CSL980001R2515 FEED-IN 25/15 1P
Each
PHP370.86(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller Undervoltage Release for use with Motor Protective Circuit Breaker
  • RS Stock No. 272-2284
  • Mfr. Part No. 219219 U-PKZ0(24V60HZ)
Each
PHP3,425.67(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 3P, 25A, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-721
  • Mfr. Part No. 2CDS253001R0518
Each
PHP22,956.93(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 100A, 2 Pole, 500mA, Type A, 277V ac
  • RS Stock No. 177-5083
  • Mfr. Part No. 2CSF202201R4900 F202 A S-100/0,5
Each
PHP21,079.40(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 35A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-605
  • Mfr. Part No. 3VA5135-6ED31-1AA0
Each
PHP32,778.14(exc. VAT)
In Stock
ABB 25A Centred Tag Fuse, NH000, 500V
  • RS Stock No. 779-9952
  • Mfr. Part No. OFAF000H25 1SCA022627R0820
Each
PHP414.71(exc. VAT)
In Stock
ABB RCBO, 8A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6954
  • Mfr. Part No. 2CSR255180R1084 DS201 C8 A30
Each
PHP13,810.12(exc. VAT)
Temporarily out of stock
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS Stock No. 232-0024
  • Mfr. Part No. GJI2320072R0017 SZ-KLB 16
1 Box of 1
PHP1,131.34(exc. VAT)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 75 A
  • RS Stock No. 117-267
  • Mfr. Part No. FP 1218
Each
PHP16,302.24(exc. VAT)
Temporarily out of stock
Siemens SENTRON Busbar
  • RS Stock No. 266-505
  • Mfr. Part No. 8US1313-4AM04
Each
PHP25,014.54(exc. VAT)
Temporarily out of stock
Siemens SENTRON Busbar Connector, 450V
  • RS Stock No. 211-3831
  • Mfr. Part No. 5ST3781-2
Each (In a Pack of 10)
PHP737.826(exc. VAT)
In Stock
Eaton Eaton Moeller 1 Phase Busbar, 1000V, 17.6mm Pitch
  • RS Stock No. 123-035
  • Mfr. Part No. 171131 Z-BB/UL25/1P1MU/57
Each
PHP1,316.16(exc. VAT)
Temporarily out of stock
Schneider Electric A9F Acti9 iC60 MCB, 1P, 32A Curve B, 500V AC, 60V DC, 230 V ac Breaking Capacity
  • RS Stock No. 335-058
  • Mfr. Part No. A9F93132
Each
PHP4,720.49(exc. VAT)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 32A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-677
  • Mfr. Part No. SE10C332
Each
PHP8,858.39(exc. VAT)
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