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

39187 Products showing for Circuit Breakers

116 of 999+
Temporarily out of stock
Contactum 18 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9110
  • Mfr. Part No. DD181MS
Each
€120.23(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Plug In
  • RS Stock No. 122-349
  • Mfr. Part No. LV510473P
Each
€156.55(exc. VAT)
Temporarily out of stock
Europa 3 Phase Distribution Board, 30 Way, 125 A
  • RS Stock No. 849-6412
  • Mfr. Part No. TPN10
Each
€471.94(exc. VAT)
In Stock
ETA REX12 Electronic Circuit breaker 4A 24V REX12D-T, DIN Rail Mount
  • RS Stock No. 175-0379
  • Mfr. Part No. REX12D-TA2-100-DC24V-4A/4A
Each
€67.47(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 2P, 40A Curve D, 230V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-674
  • Mfr. Part No. 5SY8540-8
Each
€162.00(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 1kA, Breaking Capacity 31 kA, Fixed Mount
  • RS Stock No. 341-492
  • Mfr. Part No. C100H42AFM
Each
€13,115.02(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 1.6A Curve C, 440V AC, 125V DC, 20 kA Breaking Capacity
  • RS Stock No. 231-9678
  • Mfr. Part No. 2CDS252001R0974 S202-C 1,6
1 Box of 1
€68.39(exc. VAT)
In Stock
Better World
ABB S200C MCB, 2P, 25A Curve C, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1630
  • Mfr. Part No. 2CDS252280R0254
Each
€48.04(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 50A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-7957
  • Mfr. Part No. LV426751
Each
€728.63(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY5 MCB, 1P, 13A Curve B, 400V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-7520
  • Mfr. Part No. 5SY5113-6
Each
€45.38(exc. VAT)
Temporarily out of stock
Siemens SENTRON Undervoltage Release for use with 3VA1 and 3VA20-26
  • RS Stock No. 157-842
  • Mfr. Part No. 3VA9908-0BB13
Each
€93.30(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 5SY4 MCB, 1P, 20A, Type A, 5 kA Breaking Capacity
  • RS Stock No. 213-2595
  • Mfr. Part No. 5SY4120-5
Each
€39.36(exc. VAT)
In Stock
ABB F200 RCCB, 40A, 2 Pole, 30mA, Type B, 230V
  • RS Stock No. 289-1618
  • Mfr. Part No. 2CSF202568R1400
Each
€453.37(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 40A Curve B, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4466
  • Mfr. Part No. 239117 FAZ6-B40/3
Each
€111.89(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)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 914-4055
  • Mfr. Part No. 2CSR255051R1205 DSE201 B20 AC30 - N Blue
Each
€83.66(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 1A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3540
  • Mfr. Part No. A9F55301
Each
€116.58(exc. VAT)
In Stock
Eaton xEffect MCB, 1P, 40A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4677
  • Mfr. Part No. 239041 FAZ6-C40/1
Each
€26.86(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 231-9295
  • Mfr. Part No. 1SDA066809R1 XT1B 160 TMD 160A FF
Each
€395.98(exc. VAT)
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