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

39184 Products showing for Circuit Breakers

1771 of 999+
Temporarily out of stock
Eaton RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBmM Range
  • RS Stock No. 123-694
  • Mfr. Part No. 170879 FRBMM-B10/2/003-A
Each
€125.00(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 A9V2 MCB, 2P, 63A, Type A, 230-415V AC
  • RS Stock No. 212-251
  • Mfr. Part No. A9V25263
Each
€316.00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 55 kA
  • RS Stock No. 209-6819
  • Mfr. Part No. 3VA1140-5EE36-0AA0
Each
€263.41(exc. VAT)
In Stock
Murrelektronik Limited Mico Pro Distribution Block for use with Circuit Breaker
  • RS Stock No. 284-8052
  • Mfr. Part No. 9000-41000-0000212
Each
€50.37(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 249-784
  • Mfr. Part No. 3VA6440-8HM31-0AA0
Each
€3,455.18(exc. VAT)
Temporarily out of stock
Eaton xEnergy Basic Distribution Board Enclosure
  • RS Stock No. 251-426
  • Mfr. Part No. 193188 BPM-O-1100/8-P-EP-W
Each
€951.00(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with N(S)4(-4), NZM4(-4)
  • RS Stock No. 255-618
  • Mfr. Part No. 266588 NZM4-XUV
Each
€242.00(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 4P 100A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 346-819
  • Mfr. Part No. BJF46100
Each
€1,742.91(exc. VAT)
In Stock
ABB F202 RCCB, 63A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 232-0341
  • Mfr. Part No. 2CSF202101R1630 F202 A-63/0.03
Each
€225.75(exc. VAT)
Temporarily out of stock
Hager Hager NRN Circuit Breaker, 2P, 63A Curve C, 415V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-705
  • Mfr. Part No. NRN263
Each
€222.40(exc. VAT)
In Stock
Eaton xEffect MCB, 4P, 10A Curve D
  • RS Stock No. 230-1007
  • Mfr. Part No. 168089 FAZ6-D10/4
Each
€113.23(exc. VAT)
Unavailable
Schneider Electric, Compact MCCB Molded Case Circuit Breaker 80 A, Breaking Capacity 50 kA, Screw
  • RS Stock No. 178-7739
  • Mfr. Part No. LV426456
Each
€319.00(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEG1 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0190
  • Mfr. Part No. IEG1-1-72-10.0-A-21-V
Each
€35.39(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 2P 450A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-187
  • Mfr. Part No. 3VA5445-6EC61-0AA0
Each
€1,863.98(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 400A NZM, 3 channels , Fixed
  • RS Stock No. 121-015
  • Mfr. Part No. 168455 NZMC3-S400-SVE
Each
€2,098.00(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-539
  • Mfr. Part No. 3VA6115-5KQ31-2AA0
Each
€2,182.19(exc. VAT)
Temporarily out of stock
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 243-079
  • Mfr. Part No. 192277 NZMN3-4-PX250/VAR
Each
€3,301.00(exc. VAT)
Temporarily out of stock
Siemens SENTRON Mounting Kit for use with 3VA11
  • RS Stock No. 152-462
  • Mfr. Part No. 3VA9111-0SS10
Each
€13.04(exc. VAT)
In Stock
ABB SMISSLINE TP MCB, 1P, 63A Curve D, 230V AC
  • RS Stock No. 246-2498
  • Mfr. Part No. 2CCS571001R0631 S401M-D63
Each
€55.70(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3061
  • Mfr. Part No. 1SDA070917R1
Each
€9,448.58(exc. VAT)
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