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

35871 Products showing for Circuit Breakers

11 of 999+
Better World
Schneider Electric Linergy Busbar, 690V, 54mm Pitch
  • RS Stock No. 608-8242
  • Mfr. Part No. GV2G454
Each
HK$148.60(exc. GST)
ABB System Pro M Compact S300P MCB, 1+N, 500mA Curve D, 240V AC, 72V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-687
  • Mfr. Part No. 2CDS381103R0981
Each
HK$2,102.77(exc. GST)
Better World
Schneider Electric Acti 9 MCB, 1P, 6A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS Stock No. 200-6155
  • Mfr. Part No. A9PA2606
Each
HK$456.70(exc. GST)
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, System Pro M Compact Range
  • RS Stock No. 201-6953
  • Mfr. Part No. 2CSR255180R1164 DS201 C16 A30
Each
HK$1,350.60(exc. GST)
ABB High Performance S800C MCB, 3P, 100A Curve C, 690V AC, 50 kA Breaking Capacity
  • RS Stock No. 231-9580
  • Mfr. Part No. 2CCG001233R0001
Each
HK$1,671.10(exc. GST)
ABB System Pro M Compact S200 M UC MCB, 2P, 1.6A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-062
  • Mfr. Part No. 2CDS272061R0257
Each
HK$2,657.29(exc. GST)
Better World
ABB, XT3N MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6581
  • Mfr. Part No. 1SDA068066R1 XT3N 250 TMD 250A 3P+N FF
Each
HK$9,134.70(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve B, 440V AC, 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-2118
  • Mfr. Part No. A9F06210
Each
HK$489.10(exc. GST)
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis KS Series
  • RS Stock No. 211-0513
  • Mfr. Part No. KSB63SM48
Each
HK$1,331.20(exc. GST)
Eaton xPole PXL MCB, 3P, 32A Curve C, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 490-315
  • Mfr. Part No. 236429 PXL-C32/3
Each
HK$394.20(exc. GST)
ABB RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6958
  • Mfr. Part No. 2CSR255080R1105 DS201 B10 AC30
Each
HK$928.40(exc. GST)
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 40A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2461
  • Mfr. Part No. M9F43340
Each
HK$1,610.00(exc. GST)
Better World
Schneider Electric, Acti 9, 63A, Energy Sensor, 1VA, Wireless
  • RS Stock No. 134-8660
  • Mfr. Part No. A9MEM1522
Each
HK$1,277.90(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 63A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3405
  • Mfr. Part No. A9F54363
Each
HK$2,129.60(exc. GST)
ABB Opening Solenoid for use with Tmax XT
  • RS Stock No. 237-6280
  • Mfr. Part No. 1SDA067209R1
Each
HK$5,760.12(exc. GST)
ABB AC Switch Disconnectors Accessories Interlock for use with Switch Fuses
  • RS Stock No. 259-9733
  • Mfr. Part No. 1SCA106542R1001
Each
HK$1,823.69(exc. GST)
ABB Tmax XT Rotary Handle for use with SACE Tmax XT
  • RS Stock No. 236-6854
  • Mfr. Part No. 1SDA069054R1 RHD_EM XT2-XT4 F/P EMERG
Each
HK$915.51(exc. GST)
Better World
Schneider Electric 12 → 24V ac/dc Shunt Trip Circuit Trip for use with ARA, ic60 MCB, IDPN Vigi, ild Double
  • RS Stock No. 791-2812
  • Mfr. Part No. A9A26948
Each
HK$732.80(exc. GST)
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 4 channels
  • RS Stock No. 259-4473
  • Mfr. Part No. 1SDA072681R1
Each
HK$32,796.24(exc. GST)
Schneider Electric 34 Way Metal Consumer Unit, 100A, IP2X, IP3X EZ9E
  • RS Stock No. 654-803
  • Mfr. Part No. EZ9E312MCCU
Each
HK$2,202.91(exc. GST)
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