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

163 of 999+
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 System Pro M Compact S200 MCB, 2P, 16A Curve C, 400V AC
  • RS Stock No. 455-6327
  • Mfr. Part No. 2CDS252001R0164
Each
HK$537.00
In Stock
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 100mA, Type A, 400V ac
  • RS Stock No. 209-6574
  • Mfr. Part No. 5SV3446-6
Each
HK$1,715.50
Temporarily out of stock
ABB S800S MCB, 3P, 6A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-254
  • Mfr. Part No. 2CCS863001R0065
Each
HK$8,214.32
In Stock
Eaton RCD, 16A, 2 Pole, 30mA, Type B, 230V
  • RS Stock No. 922-8724
  • Mfr. Part No. 236205 PKNM-16/1N/B/003-A-MW
Each
HK$1,081.30
Temporarily out of stock
Better World
Schneider Electric Acti9 iIG40 RCCB, 63A, 1+N Pole, 30mA, Type AC, 220 → 240V ac
  • RS Stock No. 238-3479
  • Mfr. Part No. A9R87663
Each
HK$3,199.69
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-9938
  • Mfr. Part No. 1SDA070801R1
Each
HK$46,082.78
Temporarily out of stock
Better World
Siemens 3VA94 RCD, 630A, 4 Pole, Type A
  • RS Stock No. 218-1855
  • Mfr. Part No. 3VA9424-0RL30
Each
HK$16,926.80
In Stock
Better World
Siemens 3VA911 RCD, 160A, 4 Pole, Type A
  • RS Stock No. 210-9290
  • Mfr. Part No. 3VA9114-0RL20
Each
HK$13,768.20
In Stock
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 300mA, Type A
  • RS Stock No. 124-7743
  • Mfr. Part No. 5SV3646-6
Each
HK$983.60
Temporarily out of stock
ABB S800S MCB, 1P, 20A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-848
  • Mfr. Part No. 2CCS861001R0204
Each
HK$1,536.64
Temporarily out of stock
Hager BTC RCCB, 125A, 3P Pole, Type AC
  • RS Stock No. 602-082
  • Mfr. Part No. BTC380E
Each
HK$6,289.40
Temporarily out of stock
Better World
Siemens RCCB, 25A, 4 Pole, 30mA, Type A, 400V
  • RS Stock No. 269-9759
  • Mfr. Part No. 5SV3342-6KK60
Each
HK$4,466.80
Temporarily out of stock
ABB S204L MCB, 4P, 6A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-083
  • Mfr. Part No. 2CDS244701R0064
Each
HK$2,109.05
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 4P, 500mA, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-269
  • Mfr. Part No. 2CDS254001R0158
Each
HK$3,726.47
Temporarily out of stock
Hager MMN MCB, 2P, 32A, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 597-995
  • Mfr. Part No. MMN232
Each
HK$2,866.70
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 65 kA
  • RS Stock No. 209-7086
  • Mfr. Part No. 3VA5150-6EC31-0AA0
Each
HK$6,373.10
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 100A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-7919
  • Mfr. Part No. LV426707
Each
HK$10,905.30
Temporarily out of stock
Siemens SENTRON 5SY4220 Circuit Breaker, 2P, 20A Curve C, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 153-528
  • Mfr. Part No. 5SY4220-6
Each
HK$554.90
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-529
  • Mfr. Part No. 3VA6580-5HL32-0AA0
Each
HK$36,663.40
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