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

35871 Products showing for Circuit Breakers

4 of 999+
Better World
Schneider Electric Easy 9 EZ9 MCB, 1P, 20A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 850-8631
  • Mfr. Part No. EZ9F66120
Each
HK$22.60(exc. GST)
Better World
Schneider Electric Multi 9 M9F4 MCB, 1P, 8A, Type Z, 415V AC, 60V DC, 20 kA, 3 kA Breaking Capacity
  • RS Stock No. 211-2676
  • Mfr. Part No. M9F44108
Each
HK$304.40(exc. GST)
Better World
Siemens 3VA911 RCD, 160A, 3 Pole, Type A
  • RS Stock No. 210-9286
  • Mfr. Part No. 3VA9113-0RS20
Each
HK$11,924.70(exc. GST)
Contactum 8 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9140
  • Mfr. Part No. DS0818MS
Each
HK$1,039.72(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4678
  • Mfr. Part No. 3VA2140-7MP32-0AA0
Each
HK$11,072.30(exc. GST)
Better World
Siemens SENTRON 5SY MCB, 1P, 2A, Type A
  • RS Stock No. 232-2282
  • Mfr. Part No. 5SY4102-5
Each
HK$385.00(exc. GST)
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(exc. GST)
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(exc. GST)
ABB Tmax T Shunt Opening Release for use with MCCB
  • RS Stock No. 232-0106
  • Mfr. Part No. 1SDA054870R1 SOR-C 24VAC/DC T4-6
Each
HK$982.80(exc. GST)
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6710
  • Mfr. Part No. 1SDA068356R1 XT4H 160 TMA 160A 3P+N FF
Each
HK$10,190.90(exc. GST)
Schurter Thermal Magnetic Circuit Breaker - Single Pole 240 V ac, 32V dc Voltage Rating, 5A Current Rating
  • RS Stock No. 539-3701
  • Mfr. Part No. 4404.0007
Each
HK$27.10(exc. GST)
Schneider Electric Acti9 iID RCCB, 80A, 4 Pole, 30mA, Type A-SI, 380 → 415V ac
  • RS Stock No. 130-793
  • Mfr. Part No. A9R31480
Each
HK$11,897.97(exc. GST)
Eaton xEffect RCCB, 63A, 4 Pole, 100mA, Type B, 240V ac
  • RS Stock No. 248-947
  • Mfr. Part No. 187805 FRCMM-63/4/01-B
Each
HK$11,224.70(exc. GST)
ABB System Pro M Compact S200 MCB, 1P, 6A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 488-6296
  • Mfr. Part No. 2CDS251001R0064 S201-C6
Each
HK$237.90(exc. GST)
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(exc. GST)
Hager Electronic Circuit Breaker 10A MFS, 1 channels
  • RS Stock No. 251-2067
  • Mfr. Part No. MFS710
Each (In a Pack of 12)
HK$206.762(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40K MCB, 3P, 32A Curve C, 400V AC
  • RS Stock No. 239-9977
  • Mfr. Part No. A9P71732
Each
HK$1,136.60(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 55 kA
  • RS Stock No. 210-1614
  • Mfr. Part No. 3VA1110-5EF46-0AA0
Each
HK$6,342.20(exc. GST)
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2711
  • Mfr. Part No. A9XPH106
Each
HK$89.10(exc. GST)
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(exc. GST)
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