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

1710 of 999+
Schneider Electric, PowerPact Circuit breaker 1P 125A, Breaking Capacity 35 kA, DIN Rail Mount
  • RS Stock No. 357-683
  • Mfr. Part No. BGF16125
Each
HK$8,530.60
Schneider Electric Multi9 M9F1 MCB, 1P, 2A Curve B, 415V AC, 72V DC, 3 kA Breaking Capacity
  • RS Stock No. 212-190
  • Mfr. Part No. M9F10102
Each
HK$197.43
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LI, 4 channels
  • RS Stock No. 259-3410
  • Mfr. Part No. 1SDA071344R1
Each
HK$48,605.49
Siemens SENTRON 5SY6 MCB, 3P, 15A Curve C, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-519
  • Mfr. Part No. 5SY6318-7
Each
HK$1,216.64
Eaton xEffect - FRCmM RCCB, 40A, 2 Pole, 30mA, Type A, 110V
  • RS Stock No. 127-425
  • Mfr. Part No. 180607 FRCMM-40/2/003-A-110
Each
HK$1,377.80
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-1714
  • Mfr. Part No. 3VA2110-5KP32-0AA0
Each
HK$11,905.00
ABB S800S MCB, 4P, 40A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-255
  • Mfr. Part No. 2CCS864001R0401
Each
HK$8,771.60
Better World
Schneider Electric Acti 9 IC60L MCB, 4P, 32A, Type Z, 400V AC, 250V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0132
  • Mfr. Part No. A9F92432
Each
HK$3,237.40
BB-EV 3 Phase Busbar, 690V, 27mm Pitch
  • RS Stock No. 247-516
  • Mfr. Part No. 168870 BB-EVP-10/3P-1,5MU
Each
HK$669.70
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 125-092
  • Mfr. Part No. 178824 KLV-24HWS-F
Each
HK$1,446.25
Schneider Electric RCBO, 10A Current Rating, 1P Poles, Type C, Acti9 Range
  • RS Stock No. 245-019
  • Mfr. Part No. A9D01810
Each
HK$2,021.40
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 246-853
  • Mfr. Part No. 191604 NZMN3-VX630
Each
HK$27,483.57
Eaton IZMX/INX Electronic Circuit Breaker 2.5kA , 3 channels , Withdrawable
  • RS Stock No. 132-705
  • Mfr. Part No. 183739 IZMX40N3-V25W-1
Each
HK$160,781.09
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels Type N
  • RS Stock No. 157-150
  • Mfr. Part No. 3VA2216-7HL42-0AA0
Each
HK$20,209.40
ABB RCBO, 25A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5086
  • Mfr. Part No. 2CSR253101R1255
Each
HK$2,843.13
Siemens, SENTRON MCCB 2P 80A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 147-577
  • Mfr. Part No. 3VA5180-6ED21-1AA0
Each
HK$4,217.20
Schneider Electric, ComPacT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 260-9467
  • Mfr. Part No. C10H3TM063
Each
HK$6,958.66
Better World
ABB, XT2L MCCB 4P 10A, Fixed Mount
  • RS Stock No. 236-6507
  • Mfr. Part No. 1SDA067965R1 XT2L 160 Ekip LSIG 10A FF
Each
HK$14,581.80
Murrelektronik Limited MICO Circuit Breaker Bridge for use with Circuit Breakers
  • RS Stock No. 270-9600
  • Mfr. Part No. 9000-41034-0000002
Each
HK$77.80
Better World
Schneider Electric Acti9 iDT40 RCCB, 40A, 3+N Pole, 300mA, Type A, 400V ac
  • RS Stock No. 238-3516
  • Mfr. Part No. A9Y65740
Each
HK$3,445.67
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