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
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39187 Products showing for Circuit Breakers

1878 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 4 channels
  • RS Stock No. 259-3703
  • Mfr. Part No. 1SDA071679R1
Each
€13,776.43(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3594
  • Mfr. Part No. 3VA2010-7KQ32-0AA0
Each
€1,331.15(exc. VAT)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-651
  • Mfr. Part No. 3VA6210-7HM31-0AA0
Each
€1,827.60(exc. VAT)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0895
  • Mfr. Part No. 3WA9111-0BG21
Each
€91.63(exc. VAT)
In Stock
Legrand DX Range DX3 MCB, 3P, 10A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9718
  • Mfr. Part No. 4 078 27
Each
€161.14(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 3 channels
  • RS Stock No. 155-802
  • Mfr. Part No. 3VA2325-8HL32-0AA0
Each
€1,874.00(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3167
  • Mfr. Part No. 1SDA071028R1
Each
€10,092.81(exc. VAT)
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 221-5625
  • Mfr. Part No. 3-128-233
Each
€20.00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-228
  • Mfr. Part No. 3VA6225-7KT31-0AA0
Each
€2,382.28(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 3 channels
  • RS Stock No. 157-106
  • Mfr. Part No. 3VA2140-5HM36-0AA0
Each
€783.37(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4058
  • Mfr. Part No. 1SDA072140R1
Each
€6,937.75(exc. VAT)
Temporarily out of stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 15A Current Rating
  • RS Stock No. 210-2079
  • Mfr. Part No. 3120-N526-P7T1-W01D-15A-A04011511M
Each
€61.76(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 4 channels
  • RS Stock No. 155-811
  • Mfr. Part No. 3VA2325-8JP42-0AA0
Each
€3,007.14(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4731
  • Mfr. Part No. 3VA2163-6KQ46-0AA0
Each
€1,657.55(exc. VAT)
Temporarily out of stock
Eaton NZMH3 Electronic Circuit Breaker 400A 70V , 3 channels , Fixed
  • RS Stock No. 120-672
  • Mfr. Part No. 168914 NZMH3-A400-SVE
Each
€2,590.00(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 630A , Fixed
  • RS Stock No. 127-513
  • Mfr. Part No. 183395 IZMX16B3-V06F-1
Each
€3,793.00(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 1P, 30A Curve K, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 204-332
  • Mfr. Part No. 2CDS271347R0527
Each
€117.78(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 1P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9709
  • Mfr. Part No. 3VA11124ED120AA0
Each
€193.96(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Touch LSI, 4 channels
  • RS Stock No. 259-4755
  • Mfr. Part No. 1SDA073035R1
Each
€11,546.43(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3854
  • Mfr. Part No. 3VA2063-6KQ36-0AA0
Each
€1,268.02(exc. VAT)
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