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

37 of 999+
Temporarily out of stock
Siemens 1 Phase Surge Protector, 25kA, DIN Rail Mount
  • RS Stock No. 211-0189
  • Mfr. Part No. 5SD7461-0
Each
€96.17(exc. VAT)
In Stock
Electro PJP AdaBV140 Adapter for use with Screw Terminal Block
  • RS Stock No. 275-3342
  • Mfr. Part No. AdaBV140-R
Each
€4.65(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 5A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-521
  • Mfr. Part No. 102083 FAZ-C5/1-NA
1 Pack of 2
€87.57(exc. VAT)
Temporarily out of stock
ABB, Tmax MCCB 3P 400A, Fixed Mount
  • RS Stock No. 237-6029
  • Mfr. Part No. 1SDA064158R1 T5S630 FF EKIP M-LRIU 400
Each
€2,917.48(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact SU200M MCB, 1P, 15A Curve K, 277V AC, 277V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9719
  • Mfr. Part No. 2CDS271337R0457 SU201M-K15
1 Box of 1
€51.36(exc. VAT)
In Stock
Better World
Siemens 5SV4311 RCCB, 16A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 231-8386
  • Mfr. Part No. 5SV4311-0
Each
€135.36(exc. VAT)
In Stock
Allen Bradley 1492-GH Supplementary Protectors Thermal Circuit Breaker - 1492-GH Single Pole 250V ac Voltage Rating,
  • RS Stock No. 218-8574
  • Mfr. Part No. 1492-GH050
Each
€97.91(exc. VAT)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 2P Poles, 100mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6902
  • Mfr. Part No. 2CSR255180R2064
Each
€160.24(exc. VAT)
In Stock
Phoenix Contact
  • RS Stock No. 332-5835
  • Mfr. Part No. 2966838
Each
€13.05(exc. VAT)
In Stock
Europa EUB1 EUB MCB, 1P, 25A Curve B, 230V AC
  • RS Stock No. 798-2211
  • Mfr. Part No. EUB125B
Each
€4.80(exc. VAT)
Temporarily out of stock
ABB RCBO, 50A Current Rating, 1P Poles, Type C
  • RS Stock No. 237-5236
  • Mfr. Part No. 2CSR275051R2504
Each
€173.39(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Busbar Tap-Off Unit, Canalis KBC Series
  • RS Stock No. 219-8875
  • Mfr. Part No. KBC10DCC211
1 Pack of 10
€226.27(exc. VAT)
In Stock
Eaton PKE System-Protective Circuit-Breaker Electronic Circuit Breaker 4A , Fixed
  • RS Stock No. 120-828
  • Mfr. Part No. 158244 PKE12/AK/XTU-4
Each
€153.00(exc. VAT)
Temporarily out of stock
Eaton RCBO, 20A Current Rating, 3+N Poles, 30mA Trip Sensitivity, Type C, xPole Range
  • RS Stock No. 229-303
  • Mfr. Part No. 120677 mRB4-20/3N/C/003-A
Each
€444.00(exc. VAT)
Temporarily out of stock
ABB S401M MCB, 1P, 10A Curve K, 254V AC, 12V DC, 25 kA Breaking Capacity
  • RS Stock No. 140-787
  • Mfr. Part No. 2CCS571001R0427
Each
€45.78(exc. VAT)
Temporarily out of stock
ABB RCBO, 10A Current Rating, 3P Poles, Type C
  • RS Stock No. 237-5062
  • Mfr. Part No. 2CSR253001R1104
Each
€307.15(exc. VAT)
In Stock
RS PRO MCB, 2P, 10A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0172
Each
€20.04(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9398
  • Mfr. Part No. 3VA1163-5GE42-0AA0
Each
€318.00(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 3P, 4A Curve D, 277V AC, 10 kA Breaking Capacity
  • RS Stock No. 125-1522
  • Mfr. Part No. 1492-SPM3D040
Each
€83.58(exc. VAT)
In Stock
Contactum RCBO, 50A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type B, CCPBR Range
  • RS Stock No. 240-6390
  • Mfr. Part No. CCPBR0650AB
Each
€31.28(exc. VAT)
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