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

206 of 999+
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels Type N
  • RS Stock No. 156-830
  • Mfr. Part No. 3VA2325-0MS32-0AA0
Each
HK$20,123.80
In Stock
Schneider Electric C120 A9N Circuit Breaker, 2P, 80A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7116
  • Mfr. Part No. A9N18383
Each
HK$2,425.00
Temporarily out of stock
Hager BFF RCCB, 63A, 2 Pole, 300mA, Type F
  • RS Stock No. 602-061
  • Mfr. Part No. BFF263
Each
HK$5,653.60
In Stock
Schneider Electric Acti9 Connection Unit for use with iC60 and iK60 Devices
  • RS Stock No. 655-154
  • Mfr. Part No. A9XPCD04
Each
HK$541.31
Temporarily out of stock
Schneider Electric, Vigilohm, POWERTAG, 10W, Wired
  • RS Stock No. 428-713
  • Mfr. Part No. IMDIFL12H
Each
HK$55,705.71
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 70A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-541
  • Mfr. Part No. 3VA5270-7EF31-0AA0
Each
HK$9,877.30
Temporarily out of stock
Siemens SIRIUS Undervoltage Release for use with Motor Circuit Breaker
  • RS Stock No. 157-849
  • Mfr. Part No. 3RV2922-1CV0
Each
HK$373.00
In Stock
Eaton 24V ac/dc Shunt Trip Shunt trip for use with N(S)1(-4) Series, NZM1(-4) Series
  • RS Stock No. 454-8203
  • Mfr. Part No. 259708 NZM1-XA24AC/DC
Each
HK$881.10
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9107
  • Mfr. Part No. DD141MS
Each
HK$871.48
In Stock
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6143
  • Mfr. Part No. 5SU1324-6FP16
Each
HK$2,016.80
Temporarily out of stock
Better World
Siemens RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6171
  • Mfr. Part No. 5SU1324-7FP32
Each
HK$1,378.90
Temporarily out of stock
SENTRON Undervoltage Release for use with 3VA4/5/6 Series
  • RS Stock No. 263-749
  • Mfr. Part No. 3VA9978-0BB24
Each
HK$1,113.40
Temporarily out of stock
Better World
ABB, XT4N MCCB 4P 32A, Fixed Mount
  • RS Stock No. 236-6589
  • Mfr. Part No. 1SDA068096R1 XT4N 160 TMD 32A FF
Each
HK$6,300.50
In Stock
Eaton xEffect MCB, 3+N, 250mA Curve C
  • RS Stock No. 230-0932
  • Mfr. Part No. 177459 FAZ6-C0,25/3N
Each
HK$1,271.29
Temporarily out of stock
Hager RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type A-HI
  • RS Stock No. 251-2021
  • Mfr. Part No. ADH716F
Each
HK$2,683.61
In Stock
Europa EUC3P EUC MCB, 3P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6608
  • Mfr. Part No. EUC3P63C
Each
HK$159.80
Temporarily out of stock
ABB S801S MCB, 1P, 32A, UC-K, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-544
  • Mfr. Part No. 2CCS861001R1537
Each
HK$2,792.59
Limited stock
ABB SN201 MCB, 1+N, 20A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3472
  • Mfr. Part No. 2CSS245102R0204
Each
HK$113.40
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160/250 Circuit Breakers
  • RS Stock No. 260-9363
  • Mfr. Part No. C103TM080
Each
HK$3,298.28
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 4P 400A, Fixed Mount
  • RS Stock No. 232-0099
  • Mfr. Part No. 1SDA054478R1 T5N400 FF TMA 400A
Each
HK$14,517.32
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