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

374 of 999+
In Stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 1P, 5A Curve B, 277V AC
  • RS Stock No. 256-6750
  • Mfr. Part No. M9F21105
Each
€22.16(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 806-7225
  • Mfr. Part No. A9XPH357
Each
€137.94(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 50A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3183
  • Mfr. Part No. A9F53150
Each
€27.08(exc. VAT)
Temporarily out of stock
Eaton Adapter
  • RS Stock No. 121-503
  • Mfr. Part No. 149454 ASNH100BABB100
Each
€49.60(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 6 Way, 125 A
  • RS Stock No. 336-619
  • Mfr. Part No. SEA9APN6
Each
€148.27(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 2P, 50A, Type A, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-571
  • Mfr. Part No. 5SY4250-5
Each
€216.00(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 4A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-197
  • Mfr. Part No. 2CDS273061R0337
Each
€359.81(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 63A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-182
  • Mfr. Part No. 2CDS273001R0607
Each
€190.76(exc. VAT)
Temporarily out of stock
Lovato Single Phase Surge Protector, 60kA, < 1.5kV, DIN Rail Mount
  • RS Stock No. 248-5654
  • Mfr. Part No. SA01NA320R
Each
€206.54(exc. VAT)
In Stock
Phoenix Contact Electronic Circuit breaker 10A 24V CBM, 4 channels , DIN Rail Mount Type E
  • RS Stock No. 890-3796
  • Mfr. Part No. 2905743
Each
€200.38(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 4A Curve D, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 527-9447
  • Mfr. Part No. 2CDS251001R0041 S201-D4
Each
€21.11(exc. VAT)
In Stock
ABB System Pro M Compact SU200M MCB, 3P, 16A Curve C, 400V AC, 400V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9758
  • Mfr. Part No. 2CDS273337R0164 SU203M-C16
1 Box of 1
€158.28(exc. VAT)
In Stock
ABB S800PV MCB, 2P, 16A Curve B, 800V DC, 5 kA Breaking Capacity
  • RS Stock No. 225-5918
  • Mfr. Part No. 2CCF019599R0001 S802PV-SP16 - 5 kA
Each
€221.42(exc. VAT)
Temporarily out of stock
Schneider Electric 12 Way Metal Consumer Unit, 100A, IP3x (with cover), IPxx D (on top) EZ9E12
  • RS Stock No. 245-134
  • Mfr. Part No. EZ9E12MCU
Each
€111.73(exc. VAT)
In Stock
Schneider Electric RCBO, 20A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type AC, Acti9 Range
  • RS Stock No. 276-9126
  • Mfr. Part No. A9D57420
Each
€565.50(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Busbar Tap-Off Unit with Fuse, Canalis Series
  • RS Stock No. 211-0400
  • Mfr. Part No. KBC16DCP1
Each
€103.53(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP3263 MCB, 2P, 63A, Type E
  • RS Stock No. 231-8311
  • Mfr. Part No. 5SP3263-3
Each
€423.14(exc. VAT)
In Stock
Rockwell Automation FB100 Busbar, 1000V
  • RS Stock No. 281-5989
  • Mfr. Part No. FB100544Q1
1 Pack of 2
€79.44(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 25A, 2 Pole, 100mA, 240V ac
  • RS Stock No. 123-589
  • Mfr. Part No. 170331 FRCMM-25/2/01-S/A
Each
€272.00(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 231-348
  • Mfr. Part No. 113531 NZMN3-VE630-T-AVE
Each
€4,061.00(exc. VAT)
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