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

1732 of 999+
Temporarily out of stock
Eaton xEffect MCB, 3+N, 6A Curve B, 415V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 230-0922
  • Mfr. Part No. 239155 FAZ6-B6/3N
Each
HK$472.00
In Stock
ABB System Pro M Compact S200 MCB, 4P, 40A Curve C, 440V AC, 10 kA Breaking Capacity
  • RS Stock No. 183-3646
  • Mfr. Part No. 2CDS254001R0404
Each
HK$1,620.86
In Stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 13A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7807
  • Mfr. Part No. 2CDS254001R0134 S204-C13
Each
HK$775.20
Temporarily out of stock
Better World
Siemens SENTRON 5SY4 MCB, 1+N, 1.6A Curve C, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 209-6666
  • Mfr. Part No. 5SY4515-7
Each
HK$626.90
Temporarily out of stock
Better World
Siemens SENTRON 5SY MCB, 1P, 8A Curve B
  • RS Stock No. 232-2285
  • Mfr. Part No. 5SY4108-6
Each
HK$184.90
In Stock
Eaton PKZ Circuit Breaker, 2P, 20A, 900V AC
  • RS Stock No. 273-6432
  • Mfr. Part No. 120938 PKZ-SOL20
Each
HK$1,336.35
Temporarily out of stock
ABB S302 MCB, 2P, 500mA Curve K, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-748
  • Mfr. Part No. 2CDS382001R0157
Each
HK$2,521.42
In Stock
Eaton RCD, 25A, 2 Pole, 300mA, Type A
  • RS Stock No. 922-8651
  • Mfr. Part No. 235426 PFIM-25/2/03-A-MW
Each
HK$1,035.90
Temporarily out of stock
Eaton RCCB, 63A, 4 Pole, 30mA, Type B, 240/415V ac
  • RS Stock No. 183-3549
  • Mfr. Part No. 167894 FRCDM-63/4/003-G/B
Each
HK$10,218.68
Temporarily out of stock
Eaton Eaton Moeller Series NZM Fixing Screws for use with N4-4, NZM4-4
  • RS Stock No. 244-306
  • Mfr. Part No. 127737 NZM4-4-XKS
Each
HK$445.50
Temporarily out of stock
ABB S800PV MCB, 4P, 63A, 1500V DC, 5 kA Breaking Capacity
  • RS Stock No. 225-5961
  • Mfr. Part No. 2CCF019641R0001 S804PV-SD63
Each
HK$3,956.94
In Stock
ABB FH200 RCCB, 40A, 4 Pole, 30mA, Type A
  • RS Stock No. 183-3639
  • Mfr. Part No. 2CSF204123R1400
Each
HK$1,866.51
Temporarily out of stock
Better World
ABB, XT2V MCCB 4P 63A, Fixed Mount
  • RS Stock No. 236-7447
  • Mfr. Part No. 1SDA067709R1 XT2V 160 TMA 63A FF
Each
HK$9,409.42
In Stock
Better World
Schneider Electric 250V ac Push Button Push Button
  • RS Stock No. 790-9187
  • Mfr. Part No. A9E18038
Each
HK$342.10
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 63A, 2 Pole, 30mA, Type A, 110V
  • RS Stock No. 127-428
  • Mfr. Part No. 180609 FRCMM-63/2/003-A-110
Each
HK$3,160.40
Temporarily out of stock
Lovato P1RD MCCB, 40A, 4 Pole, 300mA, Type A, 230 or 400V ac
  • RS Stock No. 276-5671
  • Mfr. Part No. P1RD4P40A300
Each
HK$2,405.15
In Stock
Legrand DX3 RCCB, 63A, 3+N Pole, 300mA, Type AC
  • RS Stock No. 732-0089
  • Mfr. Part No. 4 116 66
Each
HK$3,116.59
In Stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 16A Curve C, 500V DC
  • RS Stock No. 772-1530
  • Mfr. Part No. A9N61531
Each
HK$1,279.60
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA , DIN Rail
  • RS Stock No. 132-644
  • Mfr. Part No. 183606 IZMX40H3-P16W-1
Each
HK$147,098.81
Temporarily out of stock
Siemens SENTRON Motor Operator for use with 3VA51
  • RS Stock No. 152-455
  • Mfr. Part No. 3VA9137-0HA10
Each
HK$6,169.20
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