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

35874 Products showing for Circuit Breakers

27 of 999+
Eaton xEffect MCB, 1P, 16A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7181
  • Mfr. Part No. 279128 FAZ-C16/1-DC
Each
TWD2,585.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 110A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-195
  • Mfr. Part No. 3VA5111-4GC41-0AA0
Each
TWD26,540.00(exc. GST)
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 6A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2454
  • Mfr. Part No. M9F43306
Each
TWD10,993.00(exc. GST)
Better World
Schneider Electric RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9965
  • Mfr. Part No. A9DX3625
Each
TWD11,971.00(exc. GST)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-660
  • Mfr. Part No. 110858 NZMN3-A320-AVE
Each
TWD97,166.00(exc. GST)
Siemens, SENTRON MCCB 2P 225A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-799
  • Mfr. Part No. 3VA5222-5ED61-0AA0
Each
TWD50,101.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 2A, Type Z
  • RS Stock No. 237-3240
  • Mfr. Part No. 2CDS253001R0278 S203 Z 2A - 10 KA
Each
TWD5,691.00(exc. GST)
Better World
Siemens SENTRON 5SL4 MCB, 4P, 13A Curve C, 400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6638
  • Mfr. Part No. 5SL4413-7
Each
TWD5,956.00(exc. GST)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 20A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 336-610
  • Mfr. Part No. SE10C320
Each
TWD4,474.00(exc. GST)
Eaton RCBO, 13A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, PXK Range
  • RS Stock No. 183-3539
  • Mfr. Part No. 236947 PXK-B13/1N/003-A
Each
TWD2,484.00(exc. GST)
Schneider Electric RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Resi9 Range
  • RS Stock No. 130-504
  • Mfr. Part No. R9PDCS20
Each
TWD23,237.00(exc. GST)
ABB, SACE FORMULA MCCB Molded Case Circuit Breaker 1P 20A, Fixed Mount
  • RS Stock No. 231-9291
  • Mfr. Part No. 1SDA066686R1 / A1N 125 TMF 20-400 1p F F
Each
TWD5,464.00(exc. GST)
Hager Thermal Circuit Breaker - HAD 4P Pole Fixed, 30A Current Rating
  • RS Stock No. 602-099
  • Mfr. Part No. HDA430
Each
TWD10,213.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 246-850
  • Mfr. Part No. 191593 NZMN3-VX250-SVE
Each
TWD95,595.00(exc. GST)
Schneider Electric, 250 → 750mm, Canalis Series
  • RS Stock No. 357-777
  • Mfr. Part No. KSA250DLF4AM
Each
TWD177,944.00(exc. GST)
Siemens, SENTRON MCCB 4P 15A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-634
  • Mfr. Part No. 3VA5195-5EF41-0AA0
Each
TWD21,665.00(exc. GST)
Legrand Key Lock for use with DRIVIA cabinets
  • RS Stock No. 786-5671
  • Mfr. Part No. 4 013 91
Each
TWD1,082.00(exc. GST)
Schneider Electric PowerPact 3 Phase Distribution Board, 18 Way, 800 A
  • RS Stock No. 339-295
  • Mfr. Part No. MG8C18T
Each
TWD350,616.00(exc. GST)
Schneider Electric Acti9 1 Phase Distribution Board, 24 Way, 125 A
  • RS Stock No. 207-329
  • Mfr. Part No. SE125A24
Each
TWD14,878.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 50A
  • RS Stock No. 224-7867
  • Mfr. Part No. 3VA1150-5ED26-0AA0
Each
TWD15,600.00(exc. GST)
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