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

1749 of 999+
Eaton xEffect MCB, 3+N, 1.6A Curve C
  • RS Stock No. 230-0948
  • Mfr. Part No. 177462 FAZ6-C1,6/3N
Each
HK$1,158.28
ABB SU200 M MCB, 4P, 25A, Type Z, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 200-867
  • Mfr. Part No. 2CDS274337R0518
Each
HK$4,900.79
Better World
Schneider Electric MCCB 4P 16 → 160A
  • RS Stock No. 178-7876
  • Mfr. Part No. LV426913
Each
HK$283.20
Hager NFT MCB, 3+N, 6A, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4747
  • Mfr. Part No. NFT806
Each
HK$1,880.35
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis KS Series
  • RS Stock No. 211-0501
  • Mfr. Part No. KSB250DC5
Each
HK$14,757.10
Phoenix Contact Surge Protector, 20kA, On Base Element Mount
  • RS Stock No. 201-4035
  • Mfr. Part No. 2909596
Each
HK$588.80
Schneider Electric, ComPacT MCCB 3P 32A, Fixed Mount
  • RS Stock No. 260-7588
  • Mfr. Part No. C11F3TM032B
Each
HK$4,789.27
ABB F200 RCCB, 40A, 4 Pole, 30mA, Type A, 110V ac
  • RS Stock No. 177-5071
  • Mfr. Part No. 2CSF204199R1400 F204 A-40/0,03 110V
Each
HK$1,872.72
Better World
Schneider Electric Acti 9 Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 806-7212
  • Mfr. Part No. A9XPH157
Each
HK$448.20
Eaton xEffect - FBSmV RCCB, 40A, 3 Pole, 100mA, Type A, 240/415V ac
  • RS Stock No. 123-525
  • Mfr. Part No. 170219 FBSMV-40/3/01-A
Each
HK$1,079.00
Better World
Siemens RCBO, 125A Current Rating, 4P Poles, 300mA Trip Sensitivity, Type C, Sentron Range
  • RS Stock No. 243-6253
  • Mfr. Part No. 5SU1674-7DK82
Each
HK$32,661.30
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3315
  • Mfr. Part No. 1SDA071223R1
Each
HK$240,004.88
Better World
Siemens SENTRON 5SL4 MCB, 2P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6474
  • Mfr. Part No. 5SL4225-8
Each
HK$875.00
Siemens Surge Protector, Plug In Mount
  • RS Stock No. 213-1324
  • Mfr. Part No. 5SD7468-1
Each
HK$770.30
ABB System Pro M Compact S300P MCB, 3P, 750mA Curve K, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 200-313
  • Mfr. Part No. 2CDS383001R0187
Each
HK$3,910.58
ABB S-ARC1 MCB, 1+N, 16A Curve B, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 175-9929
  • Mfr. Part No. 2CSA255901R9165 S-ARC1 B16
Each
HK$1,810.84
Better World
Schneider Electric Busbar Feed Unit, Canalis KBB Series
  • RS Stock No. 219-8864
  • Mfr. Part No. KBB40ABG44W
Each
HK$1,673.43
BB-EV 1 Phase Busbar, 690V, 27mm Pitch
  • RS Stock No. 247-513
  • Mfr. Part No. 168859 BB-EVP-16/N-1,5MU
Each
HK$462.90
ABB System Pro M Compact S200 M UC MCB, 2P, 16A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-911
  • Mfr. Part No. 2CDS272061R0164
Each
HK$1,813.14
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX630 Circuit Breakers
  • RS Stock No. 260-8187
  • Mfr. Part No. C6342D630
Each
HK$21,510.91
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