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

169 of 999+
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6336
  • Mfr. Part No. C1632D160
Each
HK$4,953.30
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6935
  • Mfr. Part No. 2CSR255080R1165 DS201 B16 AC30
Each
HK$928.40
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4508
  • Mfr. Part No. 3VA2125-0KP32-0AA0
Each
HK$18,904.90
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4496
  • Mfr. Part No. 3VA2125-0HL36-0AA0
Each
HK$10,324.60
Better World
ABB System Pro M Compact S200 MCB, 3P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7772
  • Mfr. Part No. 2CDS253001R0324 S203-C32
Each
HK$527.00
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 10A Curve B, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3354
  • Mfr. Part No. A9F76110
Each
HK$529.78
Siemens SENTRON 3 Phase Busbar, 1mm Pitch
  • RS Stock No. 226-0821
  • Mfr. Part No. 5ST3665-2HG
Each (In a Pack of 10)
HK$354.54
Schneider Electric PowerPact Circuit Breaker for use with Distribution
  • RS Stock No. 119-150
  • Mfr. Part No. NHGF36050TW
Each
HK$11,753.73
Hager BTH RCCB, 125A, 3P Pole, Type A-HI
  • RS Stock No. 602-084
  • Mfr. Part No. BTH380E
Each
HK$8,342.10
Better World
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 249-677
  • Mfr. Part No. 3VA6460-0HL31-0AA0
Each
HK$39,509.40
ETA REX12 Electronic Circuit breaker 6A 24V REX12-T, 1 channels , DIN Rail Mount
  • RS Stock No. 175-0367
  • Mfr. Part No. REX12-TA1-107-DC24V-6A
Each
HK$459.40
Better World
Schneider Electric Acti9 iTG40 RCCB, 25A, 1+N Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 238-3495
  • Mfr. Part No. A9Y14625
Each
HK$2,771.15
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis KS Series
  • RS Stock No. 211-0506
  • Mfr. Part No. KSB400DC4
Each
HK$18,808.60
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 90A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-766
  • Mfr. Part No. 3VA5290-6EC31-1AA0
Each
HK$8,621.70
Legrand RCCB, 40A, 2 Pole, 30mA, Type F, 230V
  • RS Stock No. 266-1361
  • Mfr. Part No. 411644
Each
HK$1,506.31
Schneider Electric BGF Thermal Circuit Breaker - PowerPacT 3 Pole 525V ac Voltage Rating Clip-On, 60A Current Rating
  • RS Stock No. 335-096
  • Mfr. Part No. BGF36060
Each
HK$4,176.20
Siemens SENTRON 5SY Circuit Breaker, 1+N, 10A, Type A, 250V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 664-304
  • Mfr. Part No. 5SY4510-5
Each
HK$728.10
Schneider Electric, ComPacT MCCB 3P 1.25kA, Breaking Capacity 42 kA, Fixed Mount
  • RS Stock No. 428-749
  • Mfr. Part No. C125H32AFM
Each
HK$127,511.85
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-8020
  • Mfr. Part No. C25V45E160
Each
HK$39,880.25
ABB System Pro M Compact S200 MCB, 2P, 20A, Type Z, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-092
  • Mfr. Part No. 2CDS252001R0488
Each
HK$1,637.88
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