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

3 of 999+
Siemens RCBO, 40A Current Rating, 4P Poles, 300mA Trip Sensitivity, Type AC, Sentron Range
  • RS Stock No. 196-3604
  • Mfr. Part No. 5SM26420
Each
HK$610.00
ABB S803N MCB, 3P, 6A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-018
  • Mfr. Part No. 2CCS893001R0061
Each
HK$5,410.40
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9291
  • Mfr. Part No. A9D19816
Each
HK$1,518.90
Better World
Schneider Electric iID RCCB, 80A, 4 Pole, 30mA, Type B-SI, 400V ac
  • RS Stock No. 248-3721
  • Mfr. Part No. A9Z61480
Each
HK$25,117.30
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 6A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2330
  • Mfr. Part No. M9F21106
Each
HK$171.80
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2764
  • Mfr. Part No. A9XAH357
Each
HK$965.60
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 4A Curve D, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2384
  • Mfr. Part No. M9F23104
Each
HK$144.50
Better World
Siemens Sentron 5SY4 MCB, 4P, 40A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3205
  • Mfr. Part No. 5SY4440-7
Each
HK$1,486.40
ABB System Pro M Compact S200 M UC MCB, 2P, 8A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-359
  • Mfr. Part No. 2CDS272061R0408
Each
HK$3,465.86
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 6A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2373
  • Mfr. Part No. M9F22306
Each
HK$458.30
Better World
Schneider Electric iID RCCB, 25A, 4 Pole, 30mA
  • RS Stock No. 734-9129
  • Mfr. Part No. A9R11425
Each
HK$2,235.70
ABB S803N MCB, 3P, 20A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-913
  • Mfr. Part No. 2CCS893001R0204
Each
HK$4,485.94
Better World
Siemens 5SV3 RCCB, 40A, 4 Pole, 30mA, Type A
  • RS Stock No. 124-7722
  • Mfr. Part No. 5SV3344-6KK01
Each
HK$1,237.40
Schneider Electric Multi 9 C68N MCB, 2P, 16A, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 729-9052
  • Mfr. Part No. C68N 2P 16A (HK)
Each
HK$206.08
ABB, Protecta MCCB 3P 160A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 831-9175
  • Mfr. Part No. 1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
Each
HK$3,024.30
Eaton, xEnergy MCCB 3P 250A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5589
  • Mfr. Part No. 259124 NZMN2-VE250
Each
HK$9,626.30
Better World
Schneider Electric, Compact MCCB 4P 80A, Breaking Capacity 50 kA, Clip-On
  • RS Stock No. 178-7760
  • Mfr. Part No. LV426476
Each
HK$5,104.61
ETA Thermal Magnetic Circuit Breaker - 2210 Single Pole DIN Rail Mount, 2A Current Rating
  • RS Stock No. 282-6523
  • Mfr. Part No. 2210-T210-K0M1-H121-2A
Each
HK$398.90
Better World
Siemens 5SV3 RCCB, 16A, 2 Pole, 10mA, Type A
  • RS Stock No. 124-7725
  • Mfr. Part No. 5SV3111-6
Each
HK$947.00
Better World
Schneider Electric Surge Protector, 200A, <3.9kV, DIN Rail Mount
  • RS Stock No. 219-8276
  • Mfr. Part No. A9L40281
Each
HK$1,337.50
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