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

171 of 999+
Siemens SENTRON Auxiliary Contact for use with 5SP, 5ST3, 5SU1, 5SV
  • RS Stock No. 272-0242
  • Mfr. Part No. 5ST3062
Each
HK$688.20
ABB S802N MCB, 2P, 10A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-133
  • Mfr. Part No. 2CCS892001R0101
Each
HK$3,127.32
SENTRON Wire Connector for use with 3VA57, 3VA67 Series
  • RS Stock No. 263-732
  • Mfr. Part No. 3VA9773-0JJ43
1 Kit
HK$5,601.10
Schneider Electric, PowerPact B Circuit breaker 3P 25A, Breaking Capacity 18 KA, Clip-On
  • RS Stock No. 119-645
  • Mfr. Part No. BDL36025LU
Each
HK$7,686.00
Better World
Schneider Electric Busbar Feed Unit, Canalis KBB Series
  • RS Stock No. 211-0378
  • Mfr. Part No. KBB40ABG4TW
Each
HK$702.90
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3753
  • Mfr. Part No. 3VA2010-5KP32-0AA0
Each
HK$11,905.00
Siemens SENTRON Coding Kit
  • RS Stock No. 277-0713
  • Mfr. Part No. 3WA9111-0AB07
Each
HK$759.00
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA
  • RS Stock No. 209-6939
  • Mfr. Part No. 3VA2216-7MS32-0AA0
Each
HK$11,195.40
ABB S800S MCB, 4P, 25A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-750
  • Mfr. Part No. 2CCS864001R0517
Each
HK$8,859.61
Siemens SENTRON 5SY4 MCB, 3P, 63A, Type A, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-305
  • Mfr. Part No. 5SY4363-5
Each
HK$3,527.31
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 160A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9767
  • Mfr. Part No. 3VA1116-4ED22-0AA0
Each
HK$6,536.50
ABB System Pro M Compact S200 M UC MCB, 3P, 15A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-047
  • Mfr. Part No. 2CDS273061R0458
Each
HK$4,277.00
Better World
Schneider Electric, Compact MCCB 3P 50A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 178-7948
  • Mfr. Part No. LV426741
Each
HK$9,435.56
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 2 Pole 690V ac Voltage Rating Clip-On, 15A
  • RS Stock No. 336-587
  • Mfr. Part No. BJL26015LU
Each
HK$5,217.90
SENTRON for use with 3VA53/54, 3VA63/64 Series
  • RS Stock No. 263-975
  • Mfr. Part No. 3VA9477-0CK72
1 Kit
HK$6,154.80
Schneider Electric Acti9 Acti9 Reflex MCB, 3P, 10A Curve C, 230V AC, 24V DC, 10 KA Breaking Capacity
  • RS Stock No. 205-156
  • Mfr. Part No. A9C62310
Each
HK$7,749.04
ABB S803C MCB, 3P, 10A Curve C, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-145
  • Mfr. Part No. 2CCS883001R0104
Each
HK$3,455.87
ABB F200 RCCB, 125A, 4 Pole, 300mA, 400V ac
  • RS Stock No. 176-9629
  • Mfr. Part No. F204BS-125/0.3
Each
HK$58,190.20
Phoenix Contact 2 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 201-6286
  • Mfr. Part No. 2905351
Each
HK$3,380.70
Hager 3 Phase Busbar
  • RS Stock No. 144-4832
  • Mfr. Part No. KB463A
Each
HK$459.89
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