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

44 of 999+
Temporarily out of stock
ABB S-ARC1 M MCB, 1+N, 10A Curve C, 240V AC, 10 kA Breaking Capacity
  • RS Stock No. 175-9934
  • Mfr. Part No. 2CSA275901R9104 S-ARC1 M C10
Each
HK$2,078.78
Temporarily out of stock
ABB Tmax XT Shunt Opening Release for use with Tmax XT
  • RS Stock No. 237-6053
  • Mfr. Part No. 1SDA066333R1 SOR-C XT2-XT4 W 380-440VAC
Each
HK$932.80
In Stock
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 300mA, Type A
  • RS Stock No. 124-7744
  • Mfr. Part No. 5SV3646-6KK12
Each
HK$1,773.10
In Stock
ETA Cover for use with 9510
  • RS Stock No. 723-4840
  • Mfr. Part No. X200.801.08 M12 CLEAR COVER+PLATED NUT
Each
HK$123.00
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 25A Current Rating
  • RS Stock No. 782-7994
  • Mfr. Part No. W58-XC4C12A-25
Each
HK$53.30
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 3A Curve D, 50 kA Breaking Capacity
  • RS Stock No. 130-442
  • Mfr. Part No. A9F75103
Each
HK$1,207.62
In Stock
Better World
Schneider Electric Mounting Plate for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1178
  • Mfr. Part No. LV429283
Each
HK$1,068.84
Temporarily out of stock
Schneider Electric Terminal for use with Compact INS, Compact INSE Circuit Breaker
  • RS Stock No. 247-1718
  • Mfr. Part No. 28948
Each
HK$453.20
In Stock
Contactum MCB, 1P, 10A Curve C, 250V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9028
  • Mfr. Part No. CPB1010C
Each
HK$44.90
In Stock
Phoenix Contact Busbar
  • RS Stock No. 290-1258
  • Mfr. Part No. 0402174
Each
HK$197.60
In Stock
ABB F200 RCCB, 100A, 4 Pole, 300mA, Type A, 230V ac
  • RS Stock No. 225-6136
  • Mfr. Part No. 2CSF204101R3900 F204 A-100/0,3
Each
HK$2,535.40
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 400A, Fixed
  • RS Stock No. 122-446
  • Mfr. Part No. LV540336
Each
HK$7,199.99
In Stock
RS PRO Residential RCCBs, 25A, 4 Pole, 30mA, Type A, 400V
  • RS Stock No. 284-2372
Each
HK$539.74
In Stock
Omron Busbar
  • RS Stock No. 111-3543
  • Mfr. Part No. PYDN-15.5-080R
Each
HK$22.90
In Stock
Eaton MEMShield MCB, 1P, 40A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 124-3027
  • Mfr. Part No. EMBH140 EMBH140
Each
HK$229.70
Temporarily out of stock
Legrand DX3 RCD, 20A, 1+N Pole, 30mA, Type C
  • RS Stock No. 731-9893
  • Mfr. Part No. 4 108 02
Each
HK$3,515.32
In Stock
Europa EUC1P EUB MCB, 1P, 10A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6468
  • Mfr. Part No. EUC1P10B
Each
HK$64.50
Temporarily out of stock
Better World
Siemens Sentron 5SV6 MCB, 2P, 6A, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 209-7508
  • Mfr. Part No. 5SV6016-6GV06
Each (In a Pack of 12)
HK$1,553.933
Temporarily out of stock
ABB AC Switch Disconnectors Accessories Phase Barrier for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9697
  • Mfr. Part No. 1SCA100768R1001
Each
HK$792.07
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 36 kA
  • RS Stock No. 209-6756
  • Mfr. Part No. 3VA1112-4EF46-0AA0
Each
HK$9,114.40
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