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

53 of 999+
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB Mini Circuit Breaker, 1P, 50A Curve B, 500V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 599-661
  • Mfr. Part No. A9F93150
1 Pack of 12
HK$9,775.90
Temporarily out of stock
Lovato 3 Phase Surge Protector, 50kA
  • RS Stock No. 216-8304
  • Mfr. Part No. SG23PA300
Each
HK$2,138.56
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 600A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 341-448
  • Mfr. Part No. NLJL36600U31X
Each
HK$93,504.87
Temporarily out of stock
Eaton xEffect MCB, 2P, 6A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4700
  • Mfr. Part No. 239059 FAZ6-C6/1N
Each
HK$579.60
In Stock
Europa RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type AC, EUC7R Range
  • RS Stock No. 210-4737
  • Mfr. Part No. EUC7RC.10/1CA
Each
HK$632.26
Temporarily out of stock
Siemens SENTRON Mounting Frame for use with 3VA1 100/160, 3VA9113-0RL20
  • RS Stock No. 210-9277
  • Mfr. Part No. 3VA9053-0SB10
Each
HK$185.10
In Stock
Hager NEN MCB, 4P, 50A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4704
  • Mfr. Part No. NEN450
Each
HK$4,406.44
Temporarily out of stock
Better World
Schneider Electric Flexible Elbow Busbar Trunking, 63A, Canalis KN Series
  • RS Stock No. 211-0419
  • Mfr. Part No. KNA63DL4
Each
HK$2,081.50
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1P, 500mA Curve D, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-971
  • Mfr. Part No. 2CDS271001R0981
Each
HK$931.40
Temporarily out of stock
Schneider Electric Busbar Tap-Off Unit, 278 → 632mm, 250A, Canalis Series
  • RS Stock No. 335-076
  • Mfr. Part No. KSB250SM428
Each
HK$19,456.80
Temporarily out of stock
Siemens SENTRON Busbar
  • RS Stock No. 266-505
  • Mfr. Part No. 8US1313-4AM04
Each
HK$2,841.10
Temporarily out of stock
ABB RCBO, 6A Current Rating, 2P Poles, 100mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6904
  • Mfr. Part No. 2CSR255080R2064
Each
HK$1,414.69
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 4P 25A, Breaking Capacity 85 KA, Fixed Mount
  • RS Stock No. 119-468
  • Mfr. Part No. C11F44V025B
Each
HK$25,747.43
In Stock
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 0.5A Current Rating
  • RS Stock No. 458-8661
  • Mfr. Part No. 1180-01-0.5A
Each
HK$134.60
Temporarily out of stock
Phoenix Contact Surge Protector, On Base Element Mount
  • RS Stock No. 201-6289
  • Mfr. Part No. 2907840
Each
HK$1,154.80
In Stock
Schurter TA11 Thermal Circuit Breaker - T11-211 Single Pole 240V ac Voltage Rating Universal Mount, 6A Current Rating
  • RS Stock No. 269-3820
  • Mfr. Part No. 4400.0050
Each
HK$71.20
Temporarily out of stock
Schneider Electric, PowerPact MCCB 4P 100A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 346-819
  • Mfr. Part No. BJF46100
Each
HK$16,210.28
Temporarily out of stock
ABB End Cap, S800 Series
  • RS Stock No. 141-089
  • Mfr. Part No. 2CCS800900R0081
Each
HK$610.95
Temporarily out of stock
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 181-4373
  • Mfr. Part No. 2CSA255103R1164 DS-ARC1 C16 A30
Each
HK$2,687.98
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 2.5A, Fixed Mount
  • RS Stock No. 260-9492
  • Mfr. Part No. C10N3MA003
Each
HK$5,927.48
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