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

16 of 999+
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 6A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Each
HK$273.40
In Stock
ABB S203L MCB, 3P, 32A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-702
  • Mfr. Part No. 2CDS243701R0321
Each
HK$1,803.63
Temporarily out of stock
Siemens RCCB, 40A, 4 Pole, 30mA, Type F, 400V
  • RS Stock No. 269-9760
  • Mfr. Part No. 5SV3344-3KK60
Each
HK$6,516.40
In Stock
Dold Remote Switch Control Station Switch
  • RS Stock No. 240-9241
  • Mfr. Part No. IK8800.11 AC50Hz 230V
Each
HK$465.90
Temporarily out of stock
ABB OS Interlock for use with Switch Fuses
  • RS Stock No. 259-9731
  • Mfr. Part No. 1SCA106535R1001
Each
HK$1,326.79
Temporarily out of stock
Schneider Electric ComPact Interlock for use with ComPact NS Circuit Breaker, ComPact NSX Circuit Breaker
  • RS Stock No. 247-1720
  • Mfr. Part No. 29350
Each
HK$13,174.16
In Stock
Phoenix Contact CLIPLINE Electronic Circuit breaker 2A 24V PTCB E1, 1 channels
  • RS Stock No. 220-5802
  • Mfr. Part No. 1135749
Each
HK$358.60
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-9936
  • Mfr. Part No. 1SDA070799R1
Each
HK$79,215.64
In Stock
Better World
Schneider Electric Linergy Busbar, 690V, 54mm Pitch
  • RS Stock No. 608-8242
  • Mfr. Part No. GV2G454
Each
HK$178.30
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 25A, 2 Pole, 30mA, Type A, 240/415V ac
  • RS Stock No. 120-287
  • Mfr. Part No. 167113 FRCMM-25/2/003-A-NA
Each
HK$1,834.20
In Stock
Eaton Moeller Thermal Magnetic Circuit Breaker - 3 Pole 440V ac Voltage Rating DIN Rail, 200A Current Rating
  • RS Stock No. 221-3489
  • Mfr. Part No. 269216 NZMB2-A200-NA
Each
HK$7,945.70
Temporarily out of stock
Better World
Kimberly Clark
  • RS Stock No. 210-3517
  • Mfr. Part No. 3VA9163-0JA12
Each
HK$196.00
Temporarily out of stock
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Each
HK$1,590.30
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 400A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 260-8125
  • Mfr. Part No. C40N32D400
Each
HK$31,959.83
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS Stock No. 232-0084
  • Mfr. Part No. 1SDA054317R1 T5N400 FF PR221-LS 400A
Each
HK$9,490.40
In Stock
Better World
Schneider Electric Multi 9 C60N MCB, 3P, 20A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2072
  • Mfr. Part No. M9F11320
Each
HK$867.20
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 1A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3234
  • Mfr. Part No. A9F84201
Each
HK$2,030.60
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip G Touch LSIG, 4 channels
  • RS Stock No. 259-3462
  • Mfr. Part No. 1SDA071417R1
Each
HK$85,774.55
In Stock
Better World
Schneider Electric Linergy Mounting Plate for use with Busbar
  • RS Stock No. 211-8758
  • Mfr. Part No. AK5PA231
Each
HK$865.80
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4487
  • Mfr. Part No. 1SDA072698R1
Each
HK$65,592.68
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