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

39184 Products showing for Circuit Breakers

303 of 999+
Temporarily out of stock
ABB S800C MCB, 4P, 16A Curve C, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-982
  • Mfr. Part No. 2CCS884001R0164
Each
€239.30(exc. VAT)
Temporarily out of stock
Allen Bradley, 140G MCCB 3P 125A, Module Frame Mount
  • RS Stock No. 261-2855
  • Mfr. Part No. 140G-G6C3-C40
Each
€465.91(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with Switch Disconnector
  • RS Stock No. 629-366
  • Mfr. Part No. 8GK6430-4KK23
Each
€228.95(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SV60 MCB, 1P + N, 25A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 328-477
  • Mfr. Part No. 5SV6016-6KP25
Each
€227.33(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Cassette for use with INX40…4-…W, IZMX40…4-…W
  • RS Stock No. 132-950
  • Mfr. Part No. 183960 IZMX-CAS404-2500-1
Each
€4,450.00(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 3P, 40A Curve K, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-217
  • Mfr. Part No. 2CDS273347R0557
Each
€534.98(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7862
  • Mfr. Part No. C25B34V250
Each
€3,710.30(exc. VAT)
In Stock
Siemens Busbar
  • RS Stock No. 210-1772
  • Mfr. Part No. 8US1921-2BC00
1 Pack of 50
€390.88(exc. VAT)
Temporarily out of stock
Siemens SENTRON Cable for use with COM060, COM800
  • RS Stock No. 210-9421
  • Mfr. Part No. 3VA9987-0TC40
Each
€38.42(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 1P, 20A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5602
  • Mfr. Part No. P1MB1PC20
Each
€20.06(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.25kA , Fixed
  • RS Stock No. 127-700
  • Mfr. Part No. 183334 IZMX16N3-V12F-1
Each
€5,621.00(exc. VAT)
Temporarily out of stock
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 239-773
  • Mfr. Part No. 192318 NZMS3-4-PX630/VAR-TAZ-AVE
Each
€7,865.00(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 25A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7813
  • Mfr. Part No. 2CDS254001R0254 S204-C25
Each
€186.70(exc. VAT)
In Stock
ifm electronic Circuit Breaker
  • RS Stock No. 100-569
  • Mfr. Part No. DF1216
Each
€64.78(exc. VAT)
Temporarily out of stock
Siemens SENTRON Undervoltage Release for use with 3VA1 and 3VA20-26
  • RS Stock No. 157-830
  • Mfr. Part No. 3VA9908-0BB15
Each
€93.30(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4S MCCB 4P 100A, Fixed Mount
  • RS Stock No. 236-6775
  • Mfr. Part No. 1SDA068498R1 XT4S 160 Ekip I 100A FF
Each
€1,142.88(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4758
  • Mfr. Part No. 3VA2163-7KP42-0AA0
Each
€1,539.38(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 40A Current Rating
  • RS Stock No. 405-9270
  • Mfr. Part No. 8340-F410-P1M1-A3H0-40A
Each
€72.12(exc. VAT)
Temporarily out of stock
NG125 MCB, 3P, 40 A, Curve C
  • RS Stock No. 510-6759
  • Mfr. Part No. 18637
Each
€404.97(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-7452
  • Mfr. Part No. 1SDA067714R1 XT2V 160 TMA 125A FF
Each
€1,090.24(exc. VAT)
1
303
1960
Results per page

Related links