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

109 of 999+
Better World
Schneider Electric Acti 9 iC60L MCB, 3P, 32A, Type Z, 15 kA Breaking Capacity
  • RS Stock No. 219-9248
  • Mfr. Part No. A9F92332
Each
TWD14,517.00(exc. GST)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS Stock No. 232-0085
  • Mfr. Part No. 1SDA054325R1 T5N400 FF PR221-LS 400A
Each
TWD59,190.00(exc. GST)
Better World
Siemens SIRIUS Electronic Circuit Breaker 22A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-710
  • Mfr. Part No. 3RV2321-4CC20
Each
TWD5,191.00(exc. GST)
Better World
Schneider Electric Busbar End Feed Unit, Canalis Series
  • RS Stock No. 248-4073
  • Mfr. Part No. KNA63AB4
Each
TWD4,497.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - TMC M1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 3A
  • RS Stock No. 801-7034
  • Mfr. Part No. 0914471
Each
TWD2,711.00(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 100/160/250 Circuit Breakers
  • RS Stock No. 260-9367
  • Mfr. Part No. C1042D040
Each
TWD26,314.00(exc. GST)
Eaton xEffect MCB, 4P, 63A Curve C, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7169
  • Mfr. Part No. 279067 FAZ-C63/4
Each
TWD8,587.00(exc. GST)
Better World
Siemens SENTRON 5SY5 MCB, 2P, 6A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-2356
  • Mfr. Part No. 5SY5206-7
Each
TWD5,810.00(exc. GST)
Schneider Electric Multi9 M9F MCB, 2P, 32A Curve D, 240V AC, 125V DC, 20 kA Breaking Capacity
  • RS Stock No. 288-1397
  • Mfr. Part No. M9F12232
Each
TWD7,196.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 3P, 13A Curve C, 277V AC
  • RS Stock No. 256-6763
  • Mfr. Part No. M9F22313
Each
TWD10,171.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 3P, 20A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 383-2080
  • Mfr. Part No. 5SY4320-6
Each
TWD2,726.00(exc. GST)
Eaton xEffect FAZ MCB, 1+N, 25A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-932
  • Mfr. Part No. 278650 FAZ-B25/1N
Each
TWD2,268.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 3P, 2A Curve D, 277V AC
  • RS Stock No. 256-6820
  • Mfr. Part No. M9F53302
Each
TWD13,398.00(exc. GST)
Better World
Schneider Electric Multi 9 MCB, 3P, 10A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 219-9113
  • Mfr. Part No. M9F21310
Each
TWD9,934.00(exc. GST)
Better World
Siemens SENTRON 3VA1 MCB, 2P, 32A
  • RS Stock No. 224-7842
  • Mfr. Part No. 3VA1132-4ED26-0AA0
Each
TWD13,472.00(exc. GST)
Hager Hager NRN Circuit Breaker, 2P, 32A Curve C, 415V AC, 20 kA Breaking Capacity
  • RS Stock No. 599-703
  • Mfr. Part No. NRN232
Each
TWD5,993.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 4P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3193
  • Mfr. Part No. 5SY4410-6
Each
TWD3,500.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 2P, 32A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1344
  • Mfr. Part No. 5SY4232-6
Each
TWD2,690.00(exc. GST)
Hager MMN MCB, 2P, 1.6A, 400V AC, 25 kA Breaking Capacity
  • RS Stock No. 602-259
  • Mfr. Part No. MMN202
Each
TWD11,696.00(exc. GST)
Hager MMN MCB, 4P, 40A, 400V AC, 20 kA Breaking Capacity
  • RS Stock No. 602-138
  • Mfr. Part No. MMN440
Each
TWD25,222.00(exc. GST)
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