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

177 of 999+
Temporarily out of stock
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 15A Current Rating
  • RS Stock No. 899-3414
  • Mfr. Part No. 2D15UM
Each
HK$352.60
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 3A Current Rating
  • RS Stock No. 899-1904
  • Mfr. Part No. 2G3UM
Each
HK$295.90
Temporarily out of stock
Phoenix Contact Trabtech Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 6A Current Rating
  • RS Stock No. 201-5735
  • Mfr. Part No. 2800885
Each
HK$745.60
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 25A Current Rating
  • RS Stock No. 899-1884
  • Mfr. Part No. 2G25UM
Each
HK$295.90
Temporarily out of stock
Schurter Thermal Circuit Breaker - TA45 2 Pole 60 V dc, 240V ac Voltage Rating Panel Mount, 16A Current Rating
  • RS Stock No. 868-9171
  • Mfr. Part No. 4430.2145
Each (In a Pack of 20)
HK$203.64
Temporarily out of stock
Eaton MSC-DE Electronic Circuit Breaker 16.7A 24V MSC-DEA, DIN Rail
  • RS Stock No. 120-912
  • Mfr. Part No. 167823 MSC-DEA-4-M17-SP(24VDC)
Each
HK$3,482.42
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 50A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-285
  • Mfr. Part No. C11N44V050L
Each
HK$15,580.58
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 5A Current Rating
  • RS Stock No. 217-6371
  • Mfr. Part No. 2800873
Each
HK$745.60
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4107
  • Mfr. Part No. 1SDA072214R1
Each
HK$35,487.25
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - M39019 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 275-0420
  • Mfr. Part No. M39019/02-249
1 Box of 3
HK$24,339.70
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 12A Current Rating
  • RS Stock No. 899-1752
  • Mfr. Part No. 2E12UM
Each
HK$295.90
Temporarily out of stock
Schurter Thermal Circuit Breaker - TA35 2 Pole 60 V dc, 240V ac Voltage Rating Snap In, 5A Current Rating
  • RS Stock No. 868-9358
  • Mfr. Part No. 4435.0039
Each
HK$95.60
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 6A Current Rating
  • RS Stock No. 221-5630
  • Mfr. Part No. 3-128-236
1 Box of 10
HK$1,021.70
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 5A Current Rating
  • RS Stock No. 899-1910
  • Mfr. Part No. 2G5UM
Each
HK$295.90
Temporarily out of stock
Schurter Thermal Magnetic Circuit Breaker - Single Pole 32 V dc, 240V ac Voltage Rating, 8A Current Rating
  • RS Stock No. 173-7866
  • Mfr. Part No. 4404.0003
Each (In a Box of 100)
HK$17.372
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 4 channels
  • RS Stock No. 259-3729
  • Mfr. Part No. 1SDA071704R1
Each
HK$126,619.50
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 0.8A Current Rating
  • RS Stock No. 899-1844
  • Mfr. Part No. 2G08UM
Each
HK$295.90
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 25A Current Rating
  • RS Stock No. 899-1777
  • Mfr. Part No. 2E25UM
Each
HK$295.90
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - M39019 Single Pole Panel Mount, 2A Current Rating
  • RS Stock No. 275-0419
  • Mfr. Part No. M39019/02-219
Each
HK$8,122.90
In Stock
Better World
Siemens SENTRON 5SL6 MCB, 1+N, 10A Curve B, 230V AC
  • RS Stock No. 209-7502
  • Mfr. Part No. 5SL6010-6
Each
HK$348.60
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