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

79 of 999+
Eaton xEffect MCB, 1P, 4A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6894
  • Mfr. Part No. 102082 FAZ-C4/1-NA
Each
€42.22(exc. VAT)
Schneider Electric Acti 9 IC40N MCB, 1P, 10A Curve C
  • RS Stock No. 209-1336
  • Mfr. Part No. A9P54610
Each
€53.12(exc. VAT)
Contactum Contactum 3 Phase Distribution Board, 8 Way, 125 A
  • RS Stock No. 201-0751
  • Mfr. Part No. DDB125PIR08
Each
€234.98(exc. VAT)
Schneider Electric Vigi iC60 RCD, 25A, 4 Pole, 30mA
  • RS Stock No. 209-1342
  • Mfr. Part No. A9Q41425
Each
€331.00(exc. VAT)
Schneider Electric Acti 9 IC60N MCB, 4P, 63A Curve C
  • RS Stock No. 209-1322
  • Mfr. Part No. A9F79463
Each
€209.07(exc. VAT)
Allen Bradley 1492 1492-SPM MCB, 3P, 2A Curve C, 277V AC, 10 kA Breaking Capacity
  • RS Stock No. 125-1480
  • Mfr. Part No. 1492-SPM3C020
Each
€76.33(exc. VAT)
ABB System Pro M Compact SU200M MCB, 3P, 16A Curve K, 400V AC, 400V DC, 15 kA Breaking Capacity
  • RS Stock No. 231-9761
  • Mfr. Part No. 2CDS273337R0467 SU203M-K16
1 Box of 1
€178.95(exc. VAT)
Eaton IZMX/INX Door Sealing Frame for use with INX40…WIZMX40…W
  • RS Stock No. 132-395
  • Mfr. Part No. 184139 IZMX-DEG40-W-1
Each
€178.00(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 2P, 4A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6623
  • Mfr. Part No. 5SL4204-7
Each
€71.46(exc. VAT)
ABB SMISSLINE TP MCB, 1P, 25A Curve D, 230V AC
  • RS Stock No. 246-2482
  • Mfr. Part No. 2CCS571001R0251 S401M-D25
Each
€30.80(exc. VAT)
Allen Bradley 1492-RCDA RCD, 40A, 3+N Pole, 30mA, Type A
  • RS Stock No. 136-8590
  • Mfr. Part No. 1492-RCDA4A40
Each
€191.47(exc. VAT)
Legrand DX3 RCD, 32A, 3+N Pole, 300mA, Type AC
  • RS Stock No. 732-0008
  • Mfr. Part No. 4 112 08
Each
€584.46(exc. VAT)
Better World
Siemens SENTRON 5SY7 MCB, 2P, 16A Curve C, 400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 209-6041
  • Mfr. Part No. 5SY7216-7
Each
€77.29(exc. VAT)
Siemens SIRIUS Cover for use with 3RV2
  • RS Stock No. 216-5983
  • Mfr. Part No. 3RV2901-0H
1 Pack of 10
€53.69(exc. VAT)
nVent ERICO Neutral Busbar Busbar
  • RS Stock No. 646-805
  • Mfr. Part No. 568678
Each
€11.20(exc. VAT)
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-811
  • Mfr. Part No. 568718
Each
€5.59(exc. VAT)
Allen Bradley 1492 1492-SPM MCB, 2P, 40A Curve C, 277V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 125-1477
  • Mfr. Part No. 1492-SPM2C400
Each
€62.57(exc. VAT)
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2764
  • Mfr. Part No. A9XAH357
Each
€158.20(exc. VAT)
Better World
Siemens SENTRON 5SV3xxx RCCB, 63A, 4 Pole, 500mA, Type B, 400V ac
  • RS Stock No. 241-4450
  • Mfr. Part No. 5SV3746-5
Each
€1,138.10(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 1+N, 32A Curve D
  • RS Stock No. 231-9675
  • Mfr. Part No. 2CDS251103R0321 S201-D32 N
1 Box of 1
€112.07(exc. VAT)
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