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

35822 Products showing for Circuit Breakers

1 of 999+
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 1-Pole, 3 A, Type D, 230 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 746-7823
  • Mfr. Part No. 2CDS251001R0031 S201-D3
Subtotal (1 unit)
HK$197.90
In Stock
Sensata / Airpax Airpax IEG1 Thermal Circuit Breaker - 1-Pole, 15 A Current Rating
  • RS Stock No. 275-0192
  • Mfr. Part No. IEG1-1-72-15.0-A-21-V
Subtotal (1 unit)
HK$365.86
In Stock
Better World
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9305
  • Mfr. Part No. A9D11820
Subtotal (1 unit)
HK$1,562.30
In Stock
Legrand DX DX3 Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9727
  • Mfr. Part No. 4 078 29
Subtotal (1 unit)
HK$1,578.30
In Stock
ABB 24 Plastic Consumer Unit, 125 A, EN60439-3, IEC60670 IP65 MISTRAL65
  • RS Stock No. 811-1906
  • Mfr. Part No. 1SL1204A00 65P12X22
Subtotal (1 unit)
HK$518.50
In Stock
Better World
Schneider Electric Busbar Tap-Off Unit with Without Protection, Canalis KBC Series
  • RS Stock No. 219-8879
  • Mfr. Part No. KBC16DCB40
Subtotal (1 unit)
HK$804.05
In Stock
Schneider Electric Multi9 C60SP Miniature Circuit Breaker, 2-Pole, 16 A, Type D, 440 V ac AC, 125 V dc DC, 14 kA
  • RS Stock No. 211-2396
  • Mfr. Part No. M9F23216
Subtotal (1 unit)
HK$304.20
In Stock
Schneider Electric 220V ac, 240 V ac DIN Rail Undervoltage Release Circuit Trip for use with ARA, iC40, ic60 MCB, iC65,
  • RS Stock No. 791-2799
  • Mfr. Part No. A9A26960
Subtotal (1 unit)
HK$1,357.60
In Stock
Better World
Siemens, 0AA0, 0AA0 Molded Case Circuit Breaker 4-Pole 100 A, Breaking Capacity 10 kA, Fixed
  • RS Stock No. 211-5973
  • Mfr. Part No. 3VA1110-5ED42-0AA0
Subtotal (1 unit)
HK$5,167.60
In Stock
ABB F200 Series Residual Current Circuit Breaker, 25 A, 2-Pole, 30 mA, Type A, 1 kA 277 V ac
  • RS Stock No. 177-5063
  • Mfr. Part No. 2CSF202199R1250 F202 A-25/0,03 110V
Subtotal (1 unit)
HK$1,541.30
In Stock
Schneider Electric Multi9 M9F Miniature Circuit Breaker, 2-Pole, 8 A, Type D, 240 V ac AC, 125 V dc DC, 14 kA Breaking
  • RS Stock No. 288-1399
  • Mfr. Part No. M9F23208
Subtotal (1 unit)
HK$1,767.90
In Stock
ABB 24V ac/dc DIN Rail Shunt Trip for use with S800N, S800HV, S800U Series, S800S, S800C, S800PV, S800B
  • RS Stock No. 435-532
  • Mfr. Part No. 2CCS800900R0191 S800-SOR24
Subtotal (1 unit)
HK$811.10
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 400 V ac AC, 72 V dc DC, 15 kA Breaking
  • RS Stock No. 776-2269
  • Mfr. Part No. A9F07110
Subtotal (1 unit)
HK$305.50
In Stock
Eaton xEffect xEffect Miniature Circuit Breaker, 3-Pole, 16 A, Type C, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4573
  • Mfr. Part No. 239148 FAZ6-C16/3
Subtotal (1 unit)
HK$700.50
In Stock
ABB System Pro M Compact S200M Miniature Circuit Breaker, 2-Pole, 16 A, Type K, 440 V ac AC, 125 V dc DC, 15 kA Breaking
  • RS Stock No. 231-9729
  • Mfr. Part No. 2CDS272001R0467 S202M K 16A - 15 KA
Subtotal (1 box of 1 unit)
HK$574.60
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 4-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 231-9957
  • Mfr. Part No. 2CSR256140R1164 DS203NC C16 A30
Subtotal (1 unit)
HK$1,857.70
Temporarily out of stock
Hager BDH Series Residual Current Device, 125 A, 3-Pole, 30 mA, Type A-HI
  • RS Stock No. 599-886
  • Mfr. Part No. BDH380E
Subtotal (1 unit)
HK$10,095.30
Temporarily out of stock
Siemens SENTRON 5SY Miniature Circuit Breaker, 4-Pole, 2 A, Type C, 400 V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 232-2306
  • Mfr. Part No. 5SY4402-7
Subtotal (1 unit)
HK$1,480.20
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 1 A, Type C, 240 V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3275
  • Mfr. Part No. A9F54101
Subtotal (1 unit)
HK$289.50
In Stock
Better World
Schneider Electric Acti9 Acti9 1 Phase Busbar, 415 V ac, 18 mm Pitch
  • RS Stock No. 776-2718
  • Mfr. Part No. A9XPH124
Subtotal (1 unit)
HK$264.80
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