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

82 of 999+
Temporarily out of stock
Siemens SENTRON Cable Cage for use with Circuit Breaker 3VA2
  • RS Stock No. 272-0205
  • Mfr. Part No. 3VA9167-0KB02
Each
HK$91.60
Temporarily out of stock
Siemens SENTRON Auxiliary Switch Kit for use with Circuit Breaker 3VA1
  • RS Stock No. 272-0226
  • Mfr. Part No. 3VA9467-0GX20
Each
HK$703.90
Temporarily out of stock
Siemens SENTRON Terminal Cover for use with 3VA11
  • RS Stock No. 159-467
  • Mfr. Part No. 3VA9153-0KB03
Each
HK$121.90
Temporarily out of stock
SENTRON Cable for use with 3VA51/52, 3VA61/62 Series
  • RS Stock No. 263-812
  • Mfr. Part No. 3VA9278-0CC40
Each
HK$2,103.10
Temporarily out of stock
Siemens SENTRON Busbar Connector for use with 3VA4/5 125
  • RS Stock No. 272-0199
  • Mfr. Part No. 3VA9131-0QB00
Each
HK$101.40
In Stock
Better World
ABB System Pro M Compact S200M MCB, 2P, 13A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-138
  • Mfr. Part No. 2CDS272001R0134 S202M-C13
Each
HK$562.40
Temporarily out of stock
Siemens SENTRON Fixing Bracket for use with 3VA52/53/54, 3VA61 - 3VA64 Series
  • RS Stock No. 263-890
  • Mfr. Part No. 3VA9477-0GA80
Each
HK$315.50
In Stock
ABB System Pro M Compact S200M MCB, 1P, 3A Curve D, 230/400V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 202-863
  • Mfr. Part No. 2CDS271001R0031
Each
HK$931.40
Temporarily out of stock
Phoenix Contact 2 Phase Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 201-5575
  • Mfr. Part No. 2906821
Each
HK$1,018.70
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA15/25 1000
  • RS Stock No. 269-7211
  • Mfr. Part No. 3VA9503-0JG23
Each (In a Pack of 3)
HK$489.467
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 63A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-027
  • Mfr. Part No. 2CDS272061R0607
Each
HK$3,692.22
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1555
  • Mfr. Part No. GV4PE80S6
Each
HK$9,572.79
Temporarily out of stock
SENTRON Wire Connector for use with 3VA51 Series
  • RS Stock No. 263-834
  • Mfr. Part No. 3VA9133-0JC18
1 Kit
HK$946.40
Temporarily out of stock
Siemens 3SX5601 Cable Gland for use with Safety Switch
  • RS Stock No. 271-9536
  • Mfr. Part No. 3SX56011A
Each
HK$59.80
Temporarily out of stock
SENTRON Wire Connector for use with 3VA52 Series
  • RS Stock No. 263-874
  • Mfr. Part No. 3VA9234-0JJ22
1 Kit
HK$1,088.70
In Stock
Schneider Electric Acti9 A9F MCB, 4P, 50A Curve B, 440V AC, 250V DC, 30 kA Breaking Capacity
  • RS Stock No. 288-7093
  • Mfr. Part No. A9F93450
Each
HK$8,045.66
Temporarily out of stock
SENTRON Terminal Cover for use with 3VA51 Series
  • RS Stock No. 263-954
  • Mfr. Part No. 3VA9131-0WF31
Each
HK$293.80
Temporarily out of stock
Siemens SENTRON Withdrawable Unit for use with Circuit Breaker
  • RS Stock No. 157-797
  • Mfr. Part No. 3VA9443-0KD00
Each
HK$10,763.10
Temporarily out of stock
Phoenix Contact SOL-SC Wall Box, 40 A
  • RS Stock No. 239-5018
  • Mfr. Part No. 1022360
Each (In a Pack of 10)
HK$6,323.62
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 63A Curve C, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3458
  • Mfr. Part No. A9F54463
Each
HK$1,886.70
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