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

1664 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Touch LI, 4 / f channels
  • RS Stock No. 259-3917
  • Mfr. Part No. 1SDA071954R1
Each
HK$266,003.50
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 25A, Fixed Mount
  • RS Stock No. 236-6685
  • Mfr. Part No. 1SDA068315R1 XT4S 160 TMD 25A FF
Each
HK$6,576.40
Temporarily out of stock
ABB S803N MCB, 3P, 13A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-008
  • Mfr. Part No. 2CCS893001R0131
Each
HK$4,973.77
In Stock
Better World
Siemens SENTRON 5SL MCB, 1+N, 16A Curve C
  • RS Stock No. 232-2277
  • Mfr. Part No. 5SL6016-7
Each
HK$506.20
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Fixed Mount
  • RS Stock No. 260-8212
  • Mfr. Part No. C63H32D630
Each
HK$47,294.40
Temporarily out of stock
Hager NSN MCB, 2P, 20A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-953
  • Mfr. Part No. NSN220
Each
HK$2,058.00
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-046
  • Mfr. Part No. 3VA6580-6KL32-0AA0
Each
HK$55,915.80
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-394
  • Mfr. Part No. 3VA6140-7KQ31-0AA0
Each
HK$15,402.40
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-604
  • Mfr. Part No. 3VA6115-5KT41-0AA0
Each
HK$24,107.40
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 80A, Fixed Mount
  • RS Stock No. 260-9537
  • Mfr. Part No. C10R3TM080
Each
HK$9,835.18
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 63A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2382
  • Mfr. Part No. M9F22463
Each
HK$707.00
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 4P, 16A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-396
  • Mfr. Part No. 5SY7416-8
Each
HK$2,131.47
In Stock
ABB High Performance S800C MCB, 3P, 50A Curve C, 400 V, 415 V AC, 25 kA Breaking Capacity
  • RS Stock No. 231-9577
  • Mfr. Part No. 2CCS883001R0504 S803C C 50A - 25 KA
Each
HK$1,709.47
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LSI, 4 channels
  • RS Stock No. 259-4698
  • Mfr. Part No. 1SDA072975R1
Each
HK$79,597.29
Temporarily out of stock
Eaton Eaton Moeller Enclosure for use with PKZM0
  • RS Stock No. 272-2326
  • Mfr. Part No. 262683 CI-K2-PKZ0-NA-GRV
Each
HK$295.62
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 500A, Fixed Mount
  • RS Stock No. 232-0098
  • Mfr. Part No. 1SDA054456R1 T5N630 FF TMA 500A
Each
HK$16,092.26
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3P, 13A Curve B, 400V AC, 72V DC
  • RS Stock No. 209-7458
  • Mfr. Part No. 5SL4313-6
Each
HK$730.40
In Stock
ABB F200 RCCB, 40A, 2 Pole, 30mA, Type A, 110V ac
  • RS Stock No. 177-5065
  • Mfr. Part No. 2CSF202199R1400 F202 A-40/0,03 110V
Each
HK$1,012.60
In Stock
Eaton xEffect MCB, 1P, 13A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 769-4554
  • Mfr. Part No. 239036 FAZ6-C13/1
Each
HK$196.60
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Fixed
  • RS Stock No. 122-410
  • Mfr. Part No. LV510845P
Each
HK$1,071.93
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