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

94 of 999+
Schneider Electric A9R RCCB, 100A, 2 Pole, 240V
  • RS Stock No. 245-094
  • Mfr. Part No. A9R24291
Each
HK$3,926.80
Schneider Electric Resi9 R9F2 MCB, 3P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 212-088
  • Mfr. Part No. R9F28332
Each
HK$1,616.56
ABB S800S MCB, 2P, 20A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-240
  • Mfr. Part No. 2CCS862001R0487
Each
HK$4,044.84
ABB S804S MCB, 4P, 10A, UC-K, 1000V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-286
  • Mfr. Part No. 2CCS864001R1427
Each
HK$10,193.40
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 25A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-315
  • Mfr. Part No. 3VA5125-5ED11-1AA0
Each
HK$1,243.30
Eaton MCB, 1P, 13A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-535
  • Mfr. Part No. 101271 PLI-B13/1N
Each
HK$471.55
HENSEL ENYSTAR Distribution Board
  • RS Stock No. 117-148
  • Mfr. Part No. DP 9026
Each
HK$116.02
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7866
  • Mfr. Part No. C25B3TM250
Each
HK$14,198.69
Schneider Electric Altivar Process Modular Busbar, 380 → 480V
  • RS Stock No. 578-334
  • Mfr. Part No. VW3A98ABMDCE
Each
HK$2,091.20
Hager CFH RCCB, 63A, 3P+N Pole, 300mA, Type A-HI, 230 → 400V ac
  • RS Stock No. 597-935
  • Mfr. Part No. CFH863F
Each
HK$5,210.10
Schneider Electric Thermal Circuit Breaker - GB2 1P + N Pole 250V ac Voltage Rating DIN Rail Mount, 10A Current Rating
  • RS Stock No. 610-0910
  • Mfr. Part No. GB2CD16
Each
HK$301.30
Better World
Siemens RCBO, 10A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6219
  • Mfr. Part No. 5SU1346-7FP10
Each
HK$3,113.70
Schneider Electric, Powerpact4 MCCB 1P 63A, Breaking Capacity 25 kA, Panel Mount
  • RS Stock No. 517-4819
  • Mfr. Part No. MGP0631L1
Each
HK$1,537.39
Schneider Electric Trunking Unit, KTA25 Series
  • RS Stock No. 244-995
  • Mfr. Part No. KTA2500ER51
Each
HK$20,600.64
Siemens SIRIUS Undervoltage Release for use with Motor Circuit Breaker
  • RS Stock No. 157-845
  • Mfr. Part No. 3RV1912-1CP0
Each
HK$388.70
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-989
  • Mfr. Part No. 3VA5217-5EC31-0AA0
Each
HK$11,915.90
ABB System Pro M Compact S200 MCB, 1P, 10A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 488-6836
  • Mfr. Part No. 2CDS251001R0104 - S201C10
Each
HK$186.50
Siemens SENTRON Adapter for use with For TD400
  • RS Stock No. 265-574
  • Mfr. Part No. 3VW9011-0AT43
Each
HK$2,151.30
Legrand DX3 RCCB, 63A, 1+N Pole, 30mA, Type AC
  • RS Stock No. 732-0109
  • Mfr. Part No. 4 116 33
Each
HK$2,033.53
ABB System Pro M Compact S200 M UC MCB, 2P, 5A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 201-016
  • Mfr. Part No. 2CDS272061R0358
Each
HK$3,003.35
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