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

54 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-402
  • Mfr. Part No. 3VA6225-7JQ41-0AA0
Each
€2,918.72(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 50A Curve B, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2347
  • Mfr. Part No. M9F21350
Each
€92.31(exc. VAT)
In Stock
Better World
Schneider Electric Acti9 Cover for use with Comb Busbar
  • RS Stock No. 237-5595
  • Mfr. Part No. A9X21095
1 Pack of 40
€23.80(exc. VAT)
Temporarily out of stock
Siemens Auxiliary Switch
  • RS Stock No. 223-7681
  • Mfr. Part No. 5TT4931
Each
€55.34(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 10A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3161
  • Mfr. Part No. A9F53110
Each
€23.14(exc. VAT)
In Stock
Contactum MCB, 1P, 250V AC
  • RS Stock No. 184-9064
  • Mfr. Part No. CPBBL
Each
€1.20(exc. VAT)
Temporarily out of stock
Rockwell Automation FB243 Busbar, 1000V
  • RS Stock No. 281-6005
  • Mfr. Part No. FB243736Q1
Each
€122.63(exc. VAT)
Temporarily out of stock
Hager MCCB 4P 160A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 144-4936
  • Mfr. Part No. HHA161H
Each
€1,309.11(exc. VAT)
In Stock
Eaton RCCB, 20A, 2 Pole, 30mA, Type B, 230V ac
  • RS Stock No. 922-8730
  • Mfr. Part No. 236239 PKNM-20/1N/B/003-A-MW
Each
€159.96(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9388
  • Mfr. Part No. 3VA1163-4GD42-0AA0
Each
€274.74(exc. VAT)
Temporarily out of stock
ABB Tmax XT Motor Operator for use with MCCB
  • RS Stock No. 231-9361
  • Mfr. Part No. 1SDA104885R1 MOE XT5 220...250V AC/DC
Each
€1,149.00(exc. VAT)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 40A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8324
  • Mfr. Part No. 2CDS213001R0405 SH203-B40
Each
€68.25(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3 Phase Busbar, 230V, 18mm Pitch
  • RS Stock No. 328-435
  • Mfr. Part No. 5ST3673-4
Each
€57.92(exc. VAT)
In Stock
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-081
  • Mfr. Part No. R9D01620
Each
€130.50(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 20A Curve C, 12 → 440V AC, 220 → 250V DC, 6 kA Breaking Capacity
  • RS Stock No. 806-7357
  • Mfr. Part No. A9F44420
Each
€174.05(exc. VAT)
In Stock
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-021
  • Mfr. Part No. R9D01606
Each
€133.00(exc. VAT)
In Stock
Lovato ModuLo P2MB MCB, 3P, 80A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6169
  • Mfr. Part No. P2MB3PC080
Each
€175.17(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, Type AC
  • RS Stock No. 231-9948
  • Mfr. Part No. 2CSR255170R1164 DSH201 C16 A30
1 Box of 1
€85.47(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 4 Pole, 500mA, Type AC, 230/400V ac
  • RS Stock No. 922-8620
  • Mfr. Part No. 235413 PFIM-40/4/05-MW
Each
€196.98(exc. VAT)
Temporarily out of stock
Eaton RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-666
  • Mfr. Part No. 170800 FRBMM-C25/2/003-LIA
Each
€164.00(exc. VAT)
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