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

35852 Products showing for Circuit Breakers

145 of 999+
SENTRON for use with 3VA53/54, 3VA63/64 Series
  • RS Stock No. 263-607
  • Mfr. Part No. 3VA9477-0CK12
1 Kit
HK$5,740.30
Better World
Siemens SIRIUS Electronic Circuit Breaker 36A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-068
  • Mfr. Part No. 3RV2431-4PA10
Each
HK$3,181.00
Hager 168 Way Plastic Consumer Unit, IP30 FD
  • RS Stock No. 144-4623
  • Mfr. Part No. FD72AN
Each
HK$9,481.66
Schneider Electric, ComPacT new generation Circuit breaker 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 110-316
  • Mfr. Part No. C12B44V160B
Each
HK$28,971.23
ABB S800U MCB, 2P, 80A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-112
  • Mfr. Part No. 2CCS862017R0805
Each
HK$6,349.89
Schneider Electric 3, 3+N Phase Surge Arrester, 65kA, 1.5kV, DIN Rail Mount
  • RS Stock No. 654-689
  • Mfr. Part No. A9L15586
Each
HK$11,042.40
ABB MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 250-4140
  • Mfr. Part No. 1SDA054410R1
Each
HK$44,407.74
ABB System Pro M Compact S200 MCB, 2P, 20A Curve B, 440V AC, 125V DC, 20 kA Breaking Capacity
  • RS Stock No. 488-6886
  • Mfr. Part No. 2CDS252001R0205 - S202B20
Each
HK$463.50
Hager CGC RCD Switch, 63A, 4 Pole, 500mA, Type AC, 230 → 400V
  • RS Stock No. 599-856
  • Mfr. Part No. CGC863F
Each
HK$4,497.00
Siemens SENTRON Adapter for use with For TD400
  • RS Stock No. 265-574
  • Mfr. Part No. 3VW9011-0AT43
Each
HK$2,151.30
Legrand DX3 RCCB, 63A, 1+N Pole, 30mA, Type AC
  • RS Stock No. 732-0109
  • Mfr. Part No. 4 116 33
Each
HK$2,033.53
Hager CEC RCCB, 63A, 1P+N Pole, 100mA, Type AC, 230V ac
  • RS Stock No. 597-966
  • Mfr. Part No. CEC163F
Each
HK$5,118.70
Schneider Electric, ComPacT New Generation MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7812
  • Mfr. Part No. C16N44V100
Each
HK$25,810.77
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-8053
  • Mfr. Part No. C25W42D160
Each
HK$33,145.73
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 25A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 354-359
  • Mfr. Part No. A9C61425
Each
HK$5,290.90
Better World
Siemens Sentron 5SY7 MCB, 1P, 1.6A Curve C, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0244
  • Mfr. Part No. 5SY7115-7
Each
HK$292.30
Hager NRN MCB, 3P, 32A Curve C, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 597-947
  • Mfr. Part No. NRN332
Each
HK$2,300.80
SENTRON for use with 3VA52, 3VA62 Series
  • RS Stock No. 263-934
  • Mfr. Part No. 3VA9278-0DK84
Each
HK$3,055.70
Siemens SENTRON 5SP3316 MCB, 3P, 16A, Type E
  • RS Stock No. 231-8312
  • Mfr. Part No. 5SP3316-3
Each
HK$3,204.40
Lovato 1 Phase Busbar, 18mm Pitch
  • RS Stock No. 825-6122
  • Mfr. Part No. P1X9031
Each
HK$246.50
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