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

33 of 999+
In Stock
ETA ESX10 Electronic Circuit breaker 1A 12V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2149
  • Mfr. Part No. ESX10-TC-124-DC12V-1A-E
Each
€56.62(exc. VAT)
In Stock
Schneider Electric Acti9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 212-255
  • Mfr. Part No. A9XPH416
Each
€36.10(exc. VAT)
Limited stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 20A Current Rating
  • RS Stock No. 210-2071
  • Mfr. Part No. 3120-N521-H7T1-W01D-20A
Each
€33.11(exc. VAT)
Temporarily out of stock
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 5A Current Rating
  • RS Stock No. 210-2099
  • Mfr. Part No. 3120-N551-H7T1-W14DR4-5A
Each
€30.75(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 254-843
  • Mfr. Part No. 265728 NZMB1-S63
Each
€337.00(exc. VAT)
In Stock
ABB PS3 3 Phase Busbar, 400V
  • RS Stock No. 231-9642
  • Mfr. Part No. 2CDL230001R1612 PS3/12/16
1 Box of 1
€25.84(exc. VAT)
In Stock
ABB, Tmax MCCB 3P 400A, Fixed Mount
  • RS Stock No. 237-5962
  • Mfr. Part No. 1SDA054323R1 T5N400 FF PR222-LSIG 400A
Each
€2,080.28(exc. VAT)
In Stock
Lovato P1RD Residual Current Circuit Breaker, 25A, 4 Pole, 30mA, Type AC, 230 V ac, 400 V ac
  • RS Stock No. 277-5045
  • Mfr. Part No. P1RD4P25AC030
Each
€194.66(exc. VAT)
In Stock
Better World
Schneider Electric RCD, 32A Current Rating, 1P+N Poles, Type AB, Easy9 Range
  • RS Stock No. 850-8669
  • Mfr. Part No. EZ9D16832
Each
€43.39(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 257-945
  • Mfr. Part No. 284378 NZMH1-A32
Each
€436.00(exc. VAT)
Temporarily out of stock
Eaton AFDD, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, AFDD+ Range
  • RS Stock No. 146-2816
  • Mfr. Part No. 187168 AFDD-10/2/B/003-A
Each
€225.43(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 65 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-729
  • Mfr. Part No. 3VA5110-1BB31-0AA0
Each
€343.37(exc. VAT)
In Stock
ABB, Tmax MCCB 4P 320A, Fixed Mount
  • RS Stock No. 237-5954
  • Mfr. Part No. 1SDA054121R1 T4N320 FF PR221-LS 320A
Each
€1,583.79(exc. VAT)
Currently unavailable
Finder 1 Phase Surge Arrester, 40kA
  • RS Stock No. 223-7760
  • Mfr. Part No. 7P.22.8.275.0020
Each
€64.21(exc. VAT)
Temporarily out of stock
Eaton Single Phase Surge Protector, 40kA, 1.6kV, DIN Rail Mount
  • RS Stock No. 120-852
  • Mfr. Part No. 167621 SPCT2-335-1+NPE
Each
€99.80(exc. VAT)
In Stock
Lovato RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, P1 Range
  • RS Stock No. 277-5051
  • Mfr. Part No. P1RE1NC06AC030
Each
€120.04(exc. VAT)
In Stock
Eaton RCCB, 40A, 1+N Pole, 100mA, Type AC
  • RS Stock No. 667-0611
  • Mfr. Part No. 235395 PFIM-40/2/01-MW
Each
€142.44(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 15A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1459
  • Mfr. Part No. 1492-SPM1C150
Each
€22.91(exc. VAT)
Temporarily out of stock
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 117-829
  • Mfr. Part No. KV 9224 M
Each
€134.59(exc. VAT)
In Stock
Contactum MCB, 1P, 16A Curve C, 250V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9031
  • Mfr. Part No. CPB1016C
Each
€5.99(exc. VAT)
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