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

170 of 999+
Lovato ModuLo P1MB MCB, 1P, 16A Curve D, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5637
  • Mfr. Part No. P1MB1PD16
Each
HK$139.40
RS PRO RC Suppressor Circuit for use with Contactors
  • RS Stock No. 277-8527
Each
HK$83.02
Eaton Eaton Distribution Parts 1 Phase Busbar, 690V
  • RS Stock No. 248-484
  • Mfr. Part No. 104894 Z-SV/UL-16/1P-1TE/18
Each
HK$255.90
Siemens 5SV33 RCCB, 25A, 2 Pole, 30mA, Type B, 250V
  • RS Stock No. 328-460
  • Mfr. Part No. 5SV3322-4KK60
Each
HK$6,538.39
Schneider Electric Acti9 A9F76 MCB, 4P, 10A, 440V AC, 250V DC, 6000 A Breaking Capacity
  • RS Stock No. 276-8721
  • Mfr. Part No. A9F76410
Each
HK$2,025.28
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9705
  • Mfr. Part No. 3VA11123GE420AA0
Each
HK$7,610.60
Better World
ABB, XT4L MCCB 3P 10A, Fixed Mount
  • RS Stock No. 236-6754
  • Mfr. Part No. 1SDA068451R1 XT4L 160 MA 10 FF
Each
HK$6,767.40
ABB System Pro M Compact S300P MCB, 1+N, 10A Curve D, 240V AC, 72V DC, 25 kA Breaking Capacity
  • RS Stock No. 204-216
  • Mfr. Part No. 2CDS381103R0101
Each
HK$1,588.97
ABB SU200 M MCB, 2P, 500mA Curve C, 440V AC, 96V DC, 15 kA Breaking Capacity
  • RS Stock No. 203-878
  • Mfr. Part No. 2CDS272337R0984
Each
HK$1,994.87
ABB SU200 M MCB, 1P, 5A Curve C, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-119
  • Mfr. Part No. 2CDS271337R0054
Each
HK$830.93
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 10A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6078
  • Mfr. Part No. A9P12610
Each
HK$425.80
Schneider Electric Acti 9 Acti9 iDT40N XA MCB, 3+N, 20A Curve C, 400V AC
  • RS Stock No. 238-3437
  • Mfr. Part No. A9PA4720
Each
HK$1,361.68
Lovato ModuLo P1MB MCB, 3P, 10A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5794
  • Mfr. Part No. P1MB3PB10
Each
HK$643.90
Hager NEN MCB, 1P, 40A, 230V AC, 10 Breaking Capacity
  • RS Stock No. 602-149
  • Mfr. Part No. NEN140
Each
HK$689.00
Schneider Electric A9R RCCB, 63A, 2 Pole, 30mA, Type AC, 220 → 240V ac
  • RS Stock No. 654-561
  • Mfr. Part No. A9R41263
Each
HK$3,293.90
Phoenix Contact Electronic Circuit breaker
  • RS Stock No. 801-6930
  • Mfr. Part No. 0903028
Each
HK$791.70
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-280
  • Mfr. Part No. 3VA6210-7HM31-2AA0
Each
HK$17,629.20
Contactum MCB, 3P, 16A Curve C, 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 184-9032
  • Mfr. Part No. CPB1016C3
Each
HK$133.00
Schneider Electric, ComPacT New Generation MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 207-154
  • Mfr. Part No. C12F44V160L
Each
HK$18,448.40
Eaton RCBO, 10A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, Type B, FRBdM Range
  • RS Stock No. 121-246
  • Mfr. Part No. 168249 FRBDM-B10/1N/001-G/A
Each
HK$1,712.66
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