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

171 of 999+
Temporarily out of stock
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 232-0203
  • Mfr. Part No. 1SDA066664R1 HTC XT1 2PCS
Each
€21.71(exc. VAT)
In Stock
Europa EUR1 RCCB, 63A, 2 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 210-4754
  • Mfr. Part No. EUR163.100/2A
Each
€49.80(exc. VAT)
Temporarily out of stock
Hager Electronic Circuit Breaker 50A NGN, 3 channels
  • RS Stock No. 251-2079
  • Mfr. Part No. NGN350
Each
€325.32(exc. VAT)
In Stock
ABB SD200 MCB, 2P, 40A, 462V AC, 131V DC
  • RS Stock No. 191-9453
  • Mfr. Part No. 2CDD282101R0040 SD202/40
Each
€25.43(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 2P, 6A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 204-339
  • Mfr. Part No. 2CDS272001R0377
Each
€88.66(exc. VAT)
Temporarily out of stock
ABB RCBO, 63A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5074
  • Mfr. Part No. 2CSR253001R1635
Each
€373.79(exc. VAT)
Temporarily out of stock
Siemens Single Phase Industrial Surge Protection, 2A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9578
  • Mfr. Part No. 5SY1702-4
Each
€32.69(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 3P, 80A Curve B
  • RS Stock No. 221-0882
  • Mfr. Part No. A9N18424
Each
€578.91(exc. VAT)
In Stock
Allen Bradley, 140UT MCCB 3P 3A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 273-2419
  • Mfr. Part No. 140UT-D7D3-B30
Each
€237.27(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 4 channels
  • RS Stock No. 156-739
  • Mfr. Part No. 3VA2340-5JP42-0AA0
Each
€2,387.80(exc. VAT)
Temporarily out of stock
Allen Bradley 30 V dc, 230V ac Auxiliary Release Circuit Trip for use with 1492-D DC Circuit Breaker, 188 Regional
  • RS Stock No. 125-1539
  • Mfr. Part No. 189-AB01
Each
€22.09(exc. VAT)
Temporarily out of stock
Eaton RCCB, 63A, 4 Pole, 30mA, Type B, 230 V ac, 400 V ac
  • RS Stock No. 203-9041
  • Mfr. Part No. 300302 PXF-63/4/003-B
Each
€834.98(exc. VAT)
Temporarily out of stock
ABB AC Switch Disconnectors Accessories Switch Disconnector for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9710
  • Mfr. Part No. 1SCA104998R1001
Each
€8.85(exc. VAT)
Temporarily out of stock
ABB OS Switch Disconnector for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9765
  • Mfr. Part No. 1SCA114770R1001
Each
€58.61(exc. VAT)
Temporarily out of stock
Hager BFH RCCB, 63A, 4 Pole, 300mA
  • RS Stock No. 602-077
  • Mfr. Part No. BFH866
Each
€573.90(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-3910
  • Mfr. Part No. 1SDA071938R1
Each
€56,228.92(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 240-948
  • Mfr. Part No. 191691 NZMH2-4-VX160/VAR
Each
€1,910.00(exc. VAT)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2350
  • Mfr. Part No. 2CCF800261R0001
Each
€22.11(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-GS 1492-GS MCB, 1P, 200mA, Type G
  • RS Stock No. 218-8578
  • Mfr. Part No. 1492-GS1G002
Each
€104.51(exc. VAT)
In Stock
Legrand Protective Cap
  • RS Stock No. 266-3049
  • Mfr. Part No. 0 016 91
1 Box of 5
€72.87(exc. VAT)
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