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

1711 of 999+
ABB Change Over Switch Circuit Trip
  • RS Stock No. 186-3449
  • Mfr. Part No. 2CCA703040R0001
Each
HK$207.90
Better World
Schneider Electric Multi 9 C60N MCB, 4P, 32A Curve B, 40 kA Breaking Capacity
  • RS Stock No. 214-2053
  • Mfr. Part No. M9F10432
Each
HK$2,009.13
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4PEM 3 Pole 690V ac Voltage Rating, 12.5A Current Rating
  • RS Stock No. 175-1575
  • Mfr. Part No. GV4PEM12N6
Each
HK$5,918.00
Eaton RCCB, 10A, 2 Pole, 10mA, Type AC, 230V ac
  • RS Stock No. 227-0688
  • Mfr. Part No. 264265 PFGM-16/2/001
Each
HK$2,100.52
Eaton B3.0/4-PKZ4 3 Phase Busbar, 690V
  • RS Stock No. 272-2294
  • Mfr. Part No. 220222 B3.0/4-PKZ4
Each
HK$462.66
ABB High Performance S800N MCB, 2P, 100A Curve C, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 435-572
  • Mfr. Part No. 2CCG001230R0001
Each
HK$1,207.60
Eaton xEffect MCB, 2P, 2A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7197
  • Mfr. Part No. 279134 FAZ-C2/2-DC
Each
HK$1,295.40
Lovato ModuLo P1MB MCB, 1P, 4A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5542
  • Mfr. Part No. P1MB1PB04
Each
HK$241.22
Phoenix Contact 1 Phase Surge Protector, 2kV, DIN Rail Mount
  • RS Stock No. 890-3702
  • Mfr. Part No. 2905415
Each
HK$5,030.80
Better World
Siemens SENTRON 5SL6 MCB, 3+N, 32A Curve C
  • RS Stock No. 216-4326
  • Mfr. Part No. 5SL6432-7
Each
HK$1,450.60
Eaton MCB, 2P, 8A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 244-000
  • Mfr. Part No. 101290 PLI-B8/2
Each
HK$659.42
Schneider Electric IKQ RCD, 100A, 4 Pole, 300mA, 400V ac
  • RS Stock No. 339-380
  • Mfr. Part No. SED100304S
Each
HK$4,831.33
Sensata Airpax Airpax Thermal Circuit Breaker - IUGN1 Single Pole Panel Mount, 30A Current Rating
  • RS Stock No. 275-0277
  • Mfr. Part No. IUGN1-1-72-30.0
1 Box of 5
HK$2,796.10
ABB Copper Copper Bar for Use with TriLine
  • RS Stock No. 237-6610
  • Mfr. Part No. 2CPX061429R9999
1 Box of 1
HK$14,416.30
Schneider Electric Acti9 3, 3+N Phase Busbar, 230/400V ac, 9mm Pitch
  • RS Stock No. 654-802
  • Mfr. Part No. A9XPC724
Each
HK$667.10
Better World
Schneider Electric Multi 9 C60BP MCB, 2P, 8A Curve C, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2418
  • Mfr. Part No. M9F42208
Each
HK$1,639.30
Schneider Electric, PowerPact MCCB 3P 150A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 340-915
  • Mfr. Part No. NHLL36000S15
Each
HK$8,648.80
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 260-519
  • Mfr. Part No. 3VA6325-8KL41-0AA0
Each
HK$43,862.10
Sensata Airpax Airpax Thermal Circuit Breaker - PR21 2 Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0439
  • Mfr. Part No. PR21-1-5.00A-XX-V
Each
HK$383.10
xEffect MCB, 1P, 80A Curve D, 230V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 252-811
  • Mfr. Part No. 211822 AZ-D80
Each
HK$1,813.64
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