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

222 of 999+
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 3P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 211-6002
  • Mfr. Part No. 3VA1125-3ED32-0AA0
Each
HK$2,814.20
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS Stock No. 259-4625
  • Mfr. Part No. 1SDA072894R1
Each
HK$70,907.05
Temporarily out of stock
Siemens, SENTRON MCCB 2P 60A, Breaking Capacity 65 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-715
  • Mfr. Part No. 3VA5160-6ED21-0AA0
Each
HK$2,146.40
Temporarily out of stock
Better World
Siemens, SENTRON Circuit breaker 4P 80A, DIN Rail Mount
  • RS Stock No. 224-7887
  • Mfr. Part No. 3VA1180-4GF42-0AA0
Each
HK$4,851.90
In Stock
ABB SMISSLINE TP S400M MCB, 1P, 16A Curve C, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 246-2479
  • Mfr. Part No. 2CCS571001R0164 S401M-C16
Each
HK$268.90
In Stock
Better World
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS Stock No. 790-9193
  • Mfr. Part No. A9D31806
Each
HK$1,358.30
In Stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 70 kA
  • RS Stock No. 210-1630
  • Mfr. Part No. 3VA1116-6EF32-0AA0
Each
HK$7,726.40
Temporarily out of stock
ABB RCBO, 32A Current Rating, 1P+N Poles
  • RS Stock No. 231-9881
  • Mfr. Part No. 2CSA255901R9325 S-ARC1 B32
Each
HK$1,996.27
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-3924
  • Mfr. Part No. 3VA2110-0HM42-0AA0
Each
HK$17,505.70
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3783
  • Mfr. Part No. 3VA2125-6HL36-0AA0
Each
HK$7,088.10
Temporarily out of stock
ABB Tmax XT Neutral Kit for use with Tmax XT
  • RS Stock No. 236-6865
  • Mfr. Part No. 1SDA069142R1 TA NEUT EXT 63A XT2
Each
HK$1,178.35
Temporarily out of stock
Better World
Siemens 5sV3 RCCB, 80A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 211-9653
  • Mfr. Part No. 5SV3347-6KL
Each
HK$6,547.40
Temporarily out of stock
SENTRON Draw-Out Unit for use with 3VA63/64 Series
  • RS Stock No. 263-656
  • Mfr. Part No. 3VA9343-0KD10
1 Kit
HK$3,297.00
Temporarily out of stock
SENTRON Terminal for use with 3VA51 Series
  • RS Stock No. 263-672
  • Mfr. Part No. 3VA9131-0QE20
Each
HK$191.80
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Dip LI, 4 channels
  • RS Stock No. 259-3678
  • Mfr. Part No. 1SDA071651R1
Each
HK$82,343.49
Temporarily out of stock
Siemens SENTRON Cover Frame for use with 3VA12
  • RS Stock No. 161-961
  • Mfr. Part No. 3VA9254-0SB20
Each
HK$319.10
Temporarily out of stock
Siemens SENTRON Busbar Connector for use with 3VA11
  • RS Stock No. 157-962
  • Mfr. Part No. 3VA9151-0QB00
Each
HK$86.00
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7772
  • Mfr. Part No. 2CDS253001R0324 S203-C32
Each
HK$527.00
In Stock
ABB Tmax XT Rotary Handle for use with SACE Tmax XT
  • RS Stock No. 236-6856
  • Mfr. Part No. 1SDA069057R1 RHE_B XT2-XT4 F/P BASE RH
Each
HK$528.90
Temporarily out of stock
Siemens SENTRON Nut Keeper Kit for use with 3VA2
  • RS Stock No. 269-7131
  • Mfr. Part No. 3VA9224-0QG00
Each (In a Pack of 4)
HK$131.70
1
222
1793
Results per page

Related links