Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here, at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution.

What are the different types of circuit breakers?

RCBO Breakers

RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.

RCCB Breakers

RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.

MCB Breakers

MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.

MCCB Breakers

MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39187 Products showing for Circuit Breakers

1944 of 999+
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 25A 3VA2, 4 channels
  • RS Stock No. 157-394
  • Mfr. Part No. 3VA2125-8HL46-0AA0
Each
€1,137.88(exc. VAT)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2346
  • Mfr. Part No. 2CCF800257R0001
Each
€20.26(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 55 kA
  • RS Stock No. 210-1635
  • Mfr. Part No. 3VA1120-5ED42-0AA0
Each
€302.09(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 320A NZM, 4 channels , Fixed
  • RS Stock No. 120-638
  • Mfr. Part No. 168890 NZMH3-4-A320/200-SVE
Each
€3,398.00(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-4354
  • Mfr. Part No. 1SDA072523R1
Each
€19,970.84(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4239
  • Mfr. Part No. 1SDA072362R1
Each
€7,036.90(exc. VAT)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 129-559
  • Mfr. Part No. 2858548
Each
€348.94(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4L MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-6812
  • Mfr. Part No. 1SDA068557R1 XT4L 160 Ekip I 63A FF
Each
€1,022.69(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Terminal Kit for use with INX40…4…08W, INX40…4…10W, INX40…4…12W, INX40…4…16W, IZMX40…4…08W,
  • RS Stock No. 132-379
  • Mfr. Part No. 184183 IZMX-TF404-1600W-1
Each
€799.00(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3516
  • Mfr. Part No. 1SDA071493R1
Each
€6,597.67(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-850
  • Mfr. Part No. 3VA5225-6GF41-0AA0
Each
€1,573.01(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 3 channels
  • RS Stock No. 259-9899
  • Mfr. Part No. 1SDA070743R1
Each
€4,591.19(exc. VAT)
Temporarily out of stock
Lovato RCBO, 10A Current Rating, 1P + N Poles, 300mA Trip Sensitivity, Type A, P1RE1NC Range
  • RS Stock No. 276-5677
  • Mfr. Part No. P1RE1NC10A300
Each
€142.22(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3+N, 13A Curve C
  • RS Stock No. 237-3264
  • Mfr. Part No. 2CDS253103R0134
Each
€106.95(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 90A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 147-733
  • Mfr. Part No. 3VA5190-5ED31-1AA0
Each
€320.04(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 230V, 35.2mm Pitch
  • RS Stock No. 187-5188
  • Mfr. Part No. 5ST3676-0
Each
€25.16(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4065
  • Mfr. Part No. 3VA2116-0KP42-0AA0
Each
€2,240.10(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-835
  • Mfr. Part No. 3VA5225-5GF41-0AA0
Each
€1,382.06(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels Type N
  • RS Stock No. 157-148
  • Mfr. Part No. 3VA2216-7HK42-0AA0
Each
€1,715.03(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2H MCCB 3P 12.5A, Fixed Mount
  • RS Stock No. 236-7378
  • Mfr. Part No. 1SDA067593R1 XT2H 160 TMD 12.5A FF
Each
€359.66(exc. VAT)
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