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

104 of 999+
Temporarily out of stock
Siemens SENTRON Terminal for use with 3VA5 250
  • RS Stock No. 269-7157
  • Mfr. Part No. 3VA9234-0JH11
Each (In a Pack of 4)
HK$230.075
Temporarily out of stock
Phoenix Contact Plug In Bridge for use with TMCP Circuit Breaker
  • RS Stock No. 801-7104
  • Mfr. Part No. 0916615
Each (In a Pack of 20)
HK$114.175
Temporarily out of stock
Eaton IZMX/INX Terminal Kit for use with INX40…3…32F, IZMX40…3…32F
  • RS Stock No. 132-612
  • Mfr. Part No. 184176 IZMX-TF403-3200F-1
Each
HK$13,774.70
Temporarily out of stock
Better World
Siemens SENTRON Terminal for use with 3VA4/5 125
  • RS Stock No. 269-7095
  • Mfr. Part No. 3VA9134-0JA11
Each (In a Pack of 4)
HK$105.975
Temporarily out of stock
Siemens SENTRON Motor Operator for use with 3VA20/21/22
  • RS Stock No. 155-948
  • Mfr. Part No. 3VA9267-0HC15
Each
HK$18,839.30
Temporarily out of stock
Siemens SENTRON Auxiliary Switch Kit for use with Circuit Breaker 3VA1
  • RS Stock No. 272-0225
  • Mfr. Part No. 3VA9467-0GX10
Each
HK$757.50
Temporarily out of stock
SENTRON Plug In Unit for use with 3VA61/62 Series
  • RS Stock No. 263-880
  • Mfr. Part No. 3VA9143-0KP10
1 Kit
HK$1,620.50
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0891
  • Mfr. Part No. 3WA9111-0BG02
Each
HK$1,556.10
Temporarily out of stock
Siemens SENTRON Adapter for use with 3VA15/25/26
  • RS Stock No. 161-885
  • Mfr. Part No. 3VA9670-0LF20
Each
HK$1,104.00
Temporarily out of stock
Siemens SENTRON Adapter for use with Rotary Operator
  • RS Stock No. 272-0233
  • Mfr. Part No. 3VA9970-0LF20
Each
HK$1,190.60
Temporarily out of stock
Siemens SENTRON 3VA9 Wire Connector for use with 3VA1 100/160
  • RS Stock No. 218-1790
  • Mfr. Part No. 3VA9114-0KP00
Each
HK$3,586.90
Temporarily out of stock
Eaton AKP1600 Enclosure for use with Double T Profile, Feeder Circuits
  • RS Stock No. 244-775
  • Mfr. Part No. 138367 AKP1600
1 Pack of 3
HK$3,793.60
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 63A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3580
  • Mfr. Part No. A9F55363
Each
HK$1,154.50
In Stock
ABB F200 RCCB, 40A, 4 Pole, 100mA, Type A, 230/400V ac
  • RS Stock No. 177-5087
  • Mfr. Part No. 2CSF204201R2400 F204 A S-40/0,1
Each
HK$1,608.40
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-277
  • Mfr. Part No. 3VA6210-6KT41-2AA0
Each
HK$27,773.70
Temporarily out of stock
Eaton Busbar, 149 Series
  • RS Stock No. 121-831
  • Mfr. Part No. 149461 ASNH185RK
Each
HK$2,866.30
Temporarily out of stock
Eaton Labelling Plate, Eaton xEnergy Series
  • RS Stock No. 247-749
  • Mfr. Part No. 155400 XANP-MC-EMPTY
1 Pack of 10
HK$350.50
Temporarily out of stock
Siemens Connecting Terminals, 5SH Series
  • RS Stock No. 300-089
  • Mfr. Part No. 5SH3535
Each
HK$1,156.40
Temporarily out of stock
Hager BTC Electronic Circuit breaker, 125A, 2 Pole, 1 A, 300 mA, 500 mA, Type AC, 500V
  • RS Stock No. 599-859
  • Mfr. Part No. BTC280E
Each
HK$6,035.00
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 160A, Breaking Capacity 25 kA, Panel Mount
  • RS Stock No. 654-808
  • Mfr. Part No. IL0633P25
Each
HK$3,285.07
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