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

35871 Products showing for Circuit Breakers

16 of 999+
Eaton Moeller Thermal Magnetic Circuit Breaker - 3 Pole 440V ac Voltage Rating DIN Rail, 200A Current Rating
  • RS Stock No. 221-3489
  • Mfr. Part No. 269216 NZMB2-A200-NA
Each
HK$7,945.70(exc. GST)
Better World
Kimberly Clark
  • RS Stock No. 210-3517
  • Mfr. Part No. 3VA9163-0JA12
Each
HK$196.00(exc. GST)
ABB Motor Operator, For Use With XT2, XT4 Circuit Breaker
  • RS Stock No. 192-0893
  • Mfr. Part No. 1SDA066466R1
Each
HK$6,699.59(exc. GST)
Schneider Electric, ComPacT MCCB 3P 400A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 260-8125
  • Mfr. Part No. C40N32D400
Each
HK$31,959.83(exc. GST)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS Stock No. 232-0084
  • Mfr. Part No. 1SDA054317R1 T5N400 FF PR221-LS 400A
Each
HK$9,490.40(exc. GST)
Better World
Schneider Electric Multi 9 C60N MCB, 3P, 20A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 214-2072
  • Mfr. Part No. M9F11320
Each
HK$867.20(exc. GST)
Better World
Schneider Electric Linergy Mounting Plate for use with Busbar
  • RS Stock No. 211-8758
  • Mfr. Part No. AK5PA231
Each
HK$865.80(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9649
  • Mfr. Part No. 3VA11103GD460AA0
Each
HK$5,402.20(exc. GST)
ABB Emax2 Electronic Circuit Breaker 630A Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4487
  • Mfr. Part No. 1SDA072698R1
Each
HK$65,592.68(exc. GST)
Siemens Sentron Cover for use with MCB
  • RS Stock No. 216-3346
  • Mfr. Part No. 5ST3800
Each (In a Pack of 10)
HK$15.32(exc. GST)
Eaton, xEnergy MCCB 3P 50A, Breaking Capacity 25 kA
  • RS Stock No. 454-8045
  • Mfr. Part No. 259076 NZMB1-A50
Each
HK$2,484.50(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160/250
  • RS Stock No. 260-9393
  • Mfr. Part No. C104TM100
Each
HK$4,365.40(exc. GST)
Weidmuller Electronic Circuit breaker 12A 24V AMG OD, 4 channels , DIN Rail Mount
  • RS Stock No. 179-3001
  • Mfr. Part No. 2122910000
1 Box of 10
HK$226.00(exc. GST)
Phoenix Contact TRABTECH Thermal Circuit Breaker - CB TM1 6A M1 P Single Pole, 6A Current Rating
  • RS Stock No. 768-0906
  • Mfr. Part No. 2800852
Each
HK$372.80(exc. GST)
Better World
ABB Compact Home SH200 MCB, 1P, 6A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8201
  • Mfr. Part No. 2CDS211001R0064 SH201-C6
Each
HK$82.20(exc. GST)
Phoenix Contact Electronic Device Circuit Breaker Electronic Circuit breaker 10A 24V CBMC, 1 channels , DIN Rail Mount
  • RS Stock No. 207-2719
  • Mfr. Part No. 2906032
Each
HK$1,061.70(exc. GST)
Siemens SENTRON 3VA9 Mounting Kit for use with 3VA2 100/160/250
  • RS Stock No. 218-1800
  • Mfr. Part No. 3VA9126-0SS10
Each
HK$189.80(exc. GST)
Better World
Siemens RCCB, 63A, 4 Pole, 30mA, Type A, 400V
  • RS Stock No. 269-9763
  • Mfr. Part No. 5SV3346-6KK60
Each
HK$6,758.90(exc. GST)
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 221-5612
  • Mfr. Part No. 3-128-218
Each
HK$156.50(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4177
  • Mfr. Part No. 3VA1112-3EF36-0AA0
Each
HK$3,280.90(exc. GST)
Results per page
1
16
1794

Related links