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

1757 of 999+
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-138
  • Mfr. Part No. 3VA6580-6HL46-2AA0
Each
HK$67,467.30
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 156-745
  • Mfr. Part No. 3VA2440-7MP32-0AA0
Each
HK$30,656.70
ABB System Pro M Compact S200M MCB, 3P, 13A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 201-198
  • Mfr. Part No. 2CDS273001R0447
Each
HK$3,134.94
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-435
  • Mfr. Part No. LV516454
Each
HK$1,296.56
Eaton xEffect - FRCmM RCCB, 25A, 4 Pole, 300mA, 240/415V ac
  • RS Stock No. 123-619
  • Mfr. Part No. 170447 FRCMM-25/4/03-S/A
Each
HK$2,616.57
ABB F200 RCCB, 80A, 4 Pole, 30mA, Type B, 400V ac
  • RS Stock No. 176-9625
  • Mfr. Part No. F204B-80/0.03
Each
HK$25,126.05
Lovato MCB, 2P, 63A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 188-1668
  • Mfr. Part No. P1MBUL2PC63
Each
HK$1,352.25
ABB S301 MCB, 1P, 1A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-259
  • Mfr. Part No. 2CDS381001R0014
Each
HK$913.42
Eaton xEffect MCB, 3P, 63A Curve B, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3197
  • Mfr. Part No. 278853 FAZ-B63/3
Each
HK$1,427.70
Lovato ModuLo P2MB MCB, 3P, 80A Curve C, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-6169
  • Mfr. Part No. P2MB3PC080
Each
HK$1,217.20
Eaton xEffect MCB, 4P, 25A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4788
  • Mfr. Part No. 168092 FAZ6-D25/4
Each
HK$1,265.20
Legrand DX Range DX3 MCB, 1P, 20A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9663
  • Mfr. Part No. 4 076 55
Each
HK$369.10
Eaton xEffect MCB, 3P, 12A Curve B
  • RS Stock No. 230-0877
  • Mfr. Part No. 177587 FAZ6-B12/3
Each
HK$766.57
Schneider Electric Panelset Busbar
  • RS Stock No. 444-371
  • Mfr. Part No. NSYTBCN3105
Each
HK$17,414.82
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7228
  • Mfr. Part No. 1SDA067268R1 TMG 100-300 XT2 3p
Each
HK$1,940.60
Eaton xEffect MCB, 3+N, 15A Curve B
  • RS Stock No. 230-0883
  • Mfr. Part No. 177457 FAZ6-B15/3N
Each
HK$531.78
Schneider Electric PowerPact Trip Unit for use with Circuit Breaker
  • RS Stock No. 654-717
  • Mfr. Part No. LA11021
Each
HK$5,054.80
Schneider Electric, PowerPact MCCB 3P 30A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 341-432
  • Mfr. Part No. NHGL36030
Each
HK$12,813.95
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-676
  • Mfr. Part No. 3VA5560-5EC32-1AA0
Each
HK$25,195.60
Phoenix Contact PTCB Electronic Circuit Breaker 630mA 24V PTCB E1, 1 channels , DIN Rail
  • RS Stock No. 518-985
  • Mfr. Part No. 1464486
Each
HK$311.70
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