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

1735 of 999+
ABB System Pro M Compact S200M MCB, 1P, 10A, Type Z, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 204-304
  • Mfr. Part No. 2CDS271001R0428
Each
HK$843.01
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3528
  • Mfr. Part No. 1SDA071504R1
Each
HK$59,537.85
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7903
  • Mfr. Part No. C25H32D100
Each
HK$16,057.10
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 4 channels
  • RS Stock No. 155-912
  • Mfr. Part No. 3VA2440-5JQ42-0AA0
Each
HK$39,733.80
Better World
ABB S200C MCB, 2P, 16A Curve C, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1611
  • Mfr. Part No. 2CDS251281R0164
Each
HK$423.90
ABB F200 RCCB, 100A, 2 Pole, 300mA, Type A, 277V ac
  • RS Stock No. 177-5080
  • Mfr. Part No. 2CSF202201R3900 F202 A S-100/0,3
Each
HK$2,415.71
Better World
Siemens 5SV3 RCCB, 25A, 4 Pole, 300mA, Type A, 500V ac
  • RS Stock No. 211-9719
  • Mfr. Part No. 5SV3652-6
Each
HK$2,201.10
Better World
Siemens SENTRON 5SY5 MCB, 2P, 6A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 203-2201
  • Mfr. Part No. 5SY5206-6
Each
HK$1,203.80
Schneider Electric Acti 9 1 Phase Busbar, 230V ac, 9mm Pitch
  • RS Stock No. 191-9522
  • Mfr. Part No. A9XPN612
Each
HK$194.10
Legrand DX3 RCD, 10A, 1+N Pole, 300mA, Type C
  • RS Stock No. 731-9904
  • Mfr. Part No. 4 108 12
Each
HK$3,362.49
Siemens SENTRON 5SJ4208 MCB, 2P, 8A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-959
  • Mfr. Part No. 5SJ4208-8HG42
Each
HK$1,608.40
Eaton xEffect MCB, 1P, 3A Curve D
  • RS Stock No. 230-1037
  • Mfr. Part No. 177486 FAZ6-D3/1
Each
HK$288.46
Eaton PFGM RCCB, 63A, 4 Pole, 300mA, Type A, 230 V ac, 400 V ac
  • RS Stock No. 227-0753
  • Mfr. Part No. 267463 PFGM-63/4/03-A
Each
HK$1,024.40
ABB SMISSLINE TP MCB, 1P, 25A Curve B, 230V AC
  • RS Stock No. 246-2532
  • Mfr. Part No. 2CCS571103R8255
Each
HK$670.05
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 16A Curve C, 400V AC, 12 → 144V DC, 10 kA Breaking Capacity
  • RS Stock No. 734-9419
  • Mfr. Part No. A9F94216
Each
HK$1,300.80
Better World
Schneider Electric, ComPacT NSX MCCB 4P 100A, Fixed Mount
  • RS Stock No. 254-6309
  • Mfr. Part No. C11B44V100L
Each
HK$13,665.30
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4392
  • Mfr. Part No. 1SDA072574R1
Each
HK$245,233.19
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 231-455
  • Mfr. Part No. 107662 NZMB2-S80-BT-CNA
Each
HK$5,673.43
Schneider Electric Acti9 Acti9 C120 MCB, 2P, 63A Curve C, 380 → 415V AC, 250V DC, 20 kA Breaking Capacity
  • RS Stock No. 130-969
  • Mfr. Part No. A9N18360
Each
HK$4,850.17
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3793
  • Mfr. Part No. 3VA2163-5MN32-0AA0
Each
HK$5,621.40
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