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

1760 of 999+
Temporarily out of stock
Schneider Electric Acti9 4 Phase Distribution Board, 160 A
  • RS Stock No. 336-628
  • Mfr. Part No. SEA9BNDM160SD
Each
HK$53,853.70
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 80A, Fixed Mount
  • RS Stock No. 260-7595
  • Mfr. Part No. C11F3TM080B
Each
HK$5,188.64
Temporarily out of stock
Better World
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3350
  • Mfr. Part No. A9DV7640
Each
HK$3,421.94
In Stock
Eaton MEMShield MCB, 1P, 32A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 124-3037
  • Mfr. Part No. EMCH132 EMCH132
Each
HK$195.30
Temporarily out of stock
ABB Tmax XT Shunt Opening Release for use with Circuit Breaker
  • RS Stock No. 231-9365
  • Mfr. Part No. 1SDA104934R1 YO-C XT5-XT6 F/P 110.240Va
Each
HK$1,008.67
Temporarily out of stock
Siemens, SENTRON MCCB 4P 450A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-188
  • Mfr. Part No. 3VA5445-6GC41-0AA0
Each
HK$31,138.70
Temporarily out of stock
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-419
  • Mfr. Part No. 3VA5325-7EF41-2AA0
Each
HK$27,439.00
In Stock
Better World
Schneider Electric Acti9 1 Phase Busbar, 230V, 9mm Pitch
  • RS Stock No. 238-4078
  • Mfr. Part No. A9XPA648
Each (In a Pack of 5)
HK$1,360.12
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 2P, 63A Curve C, 400V AC, 72V DC
  • RS Stock No. 209-7451
  • Mfr. Part No. 5SL4263-7
Each
HK$1,596.80
Temporarily out of stock
ABB Tmax XT Adapter for use with Circuit Breaker
  • RS Stock No. 232-0171
  • Mfr. Part No. 1SDA066311R1 ADP PF XT4 3P
Each
HK$214.04
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 150A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-023
  • Mfr. Part No. 3VA6115-8JQ31-0AA0
Each
HK$26,367.50
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 25A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-888
  • Mfr. Part No. 132745 FAZ-B25/1-RT
Each
HK$340.41
Temporarily out of stock
Eaton NZM DC Link Kit for use with N4-4-(800)(1000)(1250)(1400)-S1(-S15)-DC, N4-4-...-S1(-S15)-PV-NA
  • RS Stock No. 127-214
  • Mfr. Part No. 180019 NZM4-4-XKVI1P
Each
HK$5,965.78
In Stock
Lovato ModuLo P2MB MCB, 4P, 100A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6179
  • Mfr. Part No. P2MB4PC100
Each
HK$2,053.40
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 341-497
  • Mfr. Part No. C100N32AFM
Each
HK$101,427.11
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 10A, Fixed Mount
  • RS Stock No. 236-7438
  • Mfr. Part No. 1SDA067701R1 XT2V 160 TMD 10A FF
Each
HK$9,409.42
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 1P 125A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9724
  • Mfr. Part No. 3VA1112-5ED12-0AA0
Each
HK$3,528.00
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 20A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6090
  • Mfr. Part No. A9P22620
Each
HK$291.60
Temporarily out of stock
ABB S301 MCB, 1P, 32A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 201-293
  • Mfr. Part No. 2CDS381001R0324
Each
HK$742.15
Temporarily out of stock
ABB System Pro M Compact S200 MCB, 1P, 100A Curve B, 230/400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-406
  • Mfr. Part No. 2CDS251001R0825
Each
HK$2,704.01
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