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

131 of 999+
ABB Cover for use with ABB Tmax XT1
  • RS Stock No. 831-9208
  • Mfr. Part No. 1SDA066655R1 LTC XT1 3p TERMINAL COVERS LOW 2pcs
Each (In a Pack of 2)
HK$123.75
Schneider Electric ComPacT Trip Unit for use with ComPacT NSX100
  • RS Stock No. 655-150
  • Mfr. Part No. C103MG080
Each
HK$2,120.94
Hager NSN MCB, 4P, 6A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-909
  • Mfr. Part No. NSN406
Each
HK$4,647.90
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 148-003
  • Mfr. Part No. 3VA5217-5EF31-0AA0
Each
HK$12,641.20
Schneider Electric Multi9 M9F1 MCB, 2P, 16A Curve D, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-129
  • Mfr. Part No. M9F12216
Each
HK$853.48
Better World
ABB System Pro M Compact S200 MCB, 2P, 63A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7885
  • Mfr. Part No. 2CDS252001R0631 S202-D63
Each
HK$578.60
ABB F200 RCCB, 100A, 4 Pole, Type A, 277 V ac, 480 V ac
  • RS Stock No. 177-5101
  • Mfr. Part No. 2CSF204201R5900
Each
HK$3,248.48
Better World
Schneider Electric 100 → 415 V ac, 110 → 130V dc Shunt Trip Shunt trip for use with ARA, ic60 MCB, IDPN
  • RS Stock No. 791-2806
  • Mfr. Part No. A9A26476
Each
HK$783.30
ABB F404 RCCB, 40A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 246-2243
  • Mfr. Part No. 2CCF544130E0400 F404A40/0.3
Each
HK$2,203.50
Phoenix Contact 1 Phase Surge Protector, 100kA, DIN Rail Mount
  • RS Stock No. 207-2714
  • Mfr. Part No. 2905471
Each
HK$2,072.80
Better World
Siemens SENTRON 5SV3xxx RCCB, 63A, 4 Pole, 500mA, Type B, 400V ac
  • RS Stock No. 241-4450
  • Mfr. Part No. 5SV3746-5
Each
HK$12,238.80
Phoenix Contact Thermal Circuit Breaker - TCP 20/DC32V Single Pole 32V dc Voltage Rating On Base Element, 20A Current
  • RS Stock No. 652-3414
  • Mfr. Part No. 0700020
Each (In a Pack of 5)
HK$104.12
HENSEL ENYBOARD Distribution Board, 101 A
  • RS Stock No. 117-250
  • Mfr. Part No. FC PN 10
Each
HK$96.90
Acti9 Acti9 iDT40 MCB Mini Circuit Breaker, 1P + N, 25A, Type A-SI, 230V AC
  • RS Stock No. 585-484
  • Mfr. Part No. A9Y6E625
Each
HK$5,306.33
SENTRON Wire Connector for use with 3VA51 Series
  • RS Stock No. 263-542
  • Mfr. Part No. 3VA9134-0JC12
1 Kit
HK$1,448.40
Hager CGC RCD Switch, 63A, 4 Pole, 500mA, Type AC, 230 → 400V
  • RS Stock No. 599-856
  • Mfr. Part No. CGC863F
Each
HK$4,497.00
Hager BF3 RCCB, 40A, 3 Pole, 300mA, Type AC, 230 → 400V ac
  • RS Stock No. 597-978
  • Mfr. Part No. BF343
Each
HK$3,161.20
ETA Thermal Circuit Breaker - 3120-N 5 Pole 50 V DC, 240 V AC Voltage Rating, 1A Current Rating
  • RS Stock No. 210-2087
  • Mfr. Part No. 3120-N551-H7T1-W02D-1A
Each
HK$285.70
ABB RCBO, 63A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5187
  • Mfr. Part No. 2CSR273101R1635
Each
HK$3,696.43
Schneider Electric Acti9 Acti9 Reflex MCB, 4P, 25A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 354-359
  • Mfr. Part No. A9C61425
Each
HK$5,290.90
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