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

1770 of 999+
Better World
Siemens RCBO, 16A Current Rating, 4P Poles, 300mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6242
  • Mfr. Part No. 5SU1646-6FP16
Each
HK$2,425.50
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 150-4176
  • Mfr. Part No. 5SU1354-6KK10
Each
HK$1,047.60
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 2A Curve C, 240 → 415V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 219-9114
  • Mfr. Part No. M9F22102
Each
HK$141.80
Schneider Electric, ComPacT MCCB 3P 40A, Fixed Mount
  • RS Stock No. 260-9498
  • Mfr. Part No. C10N3TM040
Each
HK$6,142.08
Better World
Schneider Electric Multi 9 MCB, 2P, 10A Curve D, 10 kA Breaking Capacity
  • RS Stock No. 219-9166
  • Mfr. Part No. M9F43210
Each
HK$1,544.10
ABB Tmax XT Trip Unit for use with XT4
  • RS Stock No. 236-7275
  • Mfr. Part No. 1SDA067381R1 TMA 40-400 XT4 3p
Each
HK$4,124.96
Sensata Airpax Airpax Thermal Circuit Breaker - 219 3 Pole 480V ac Voltage Rating Panel Mount, 50A Current Rating
  • RS Stock No. 275-0067
  • Mfr. Part No. 219-3-1-65-8-9-50
Each
HK$2,131.30
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9378
  • Mfr. Part No. 3VA1163-3ED46-0AA0
Each
HK$4,031.80
Schneider Electric, ComPacT MCCB 4P 630A, Fixed Mount
  • RS Stock No. 260-8263
  • Mfr. Part No. C63W42D630
Each
HK$62,102.72
Better World
Schneider Electric Circuit Trip
  • RS Stock No. 212-0253
  • Mfr. Part No. LV432093
Each
HK$13,525.83
ABB Emax2 Electronic Circuit Breaker 6.3kA 1SDA07, 4 channels
  • RS Stock No. 259-3911
  • Mfr. Part No. 1SDA071939R1
Each
HK$561,536.25
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5169
  • Mfr. Part No. 3VA2163-5KP36-0AA0
Each
HK$11,826.20
Eaton xEffect - FBSmV RCCB, 40A, 2 Pole, 300mA, Type A, 240/415V ac
  • RS Stock No. 123-192
  • Mfr. Part No. 170211 FBSMV-40/2/03-A
Each
HK$931.70
Eaton RCCB, 40A, 2 Pole, 300mA, Type A, 230V ac
  • RS Stock No. 227-0719
  • Mfr. Part No. 267446 PFGM-40/2/03-A
Each
HK$799.51
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1593
  • Mfr. Part No. GV4PEM80N6
Each
HK$8,848.60
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1513
  • Mfr. Part No. GV4P80N
Each
HK$5,178.66
ABB SMISSLINE TP MCB, 4P, 4A Curve K, 415V AC
  • RS Stock No. 246-2679
  • Mfr. Part No. 2CCS573103R8337
Each
HK$2,399.65
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 4A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3467
  • Mfr. Part No. A9F55104
Each
HK$248.50
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 3A Curve C, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3313
  • Mfr. Part No. A9F84403
Each
HK$6,676.70
Allen Bradley MCB, 3P, 4A Curve D
  • RS Stock No. 254-6248
  • Mfr. Part No. 188-J3D040
Each
HK$562.73
1
1770
1793
Results per page

Related links