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

305 of 999+
Temporarily out of stock
Lovato ModuLo P1MB MCB, 4P, 4A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 825-5911
  • Mfr. Part No. P1MB4PB04
Each
TWD4,984.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Vertical Distribution Busbar Trunking, 2.5m, 400A, Canalis KS Series
  • RS Stock No. 248-4080
  • Mfr. Part No. KSA400EV4254
Each
TWD92,509.00(exc. GST)
Temporarily out of stock
Legrand DX Range DX3 MCB, 20A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9566
  • Mfr. Part No. 4 077 15
Each
TWD3,758.00(exc. GST)
Temporarily out of stock
Siemens RCBO, 63A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, SENTRON Range
  • RS Stock No. 211-9579
  • Mfr. Part No. 5SM2625-8
Each
TWD10,645.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 50A Curve D, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3492
  • Mfr. Part No. A9F55150
Each
TWD1,124.00(exc. GST)
Temporarily out of stock
Eaton RCCB, 40A, 3+N Pole, 300mA, Type B
  • RS Stock No. 183-3557
  • Mfr. Part No. 167909 FRCDM-40/4/03-S/BFQ
Each
TWD47,593.00(exc. GST)
In Stock
Legrand MCB, 1P, 16A
  • RS Stock No. 293-1417
  • Mfr. Part No. 0 058 11
Each
TWD476.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SV6016 Fire Safety Circuit Breaker, 2P, 20A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 187-5251
  • Mfr. Part No. 5SV6016-7KK20
Each
TWD8,468.00(exc. GST)
Temporarily out of stock
Lovato ModuLo P1MB MCB, 1+N, 25A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 825-5526
  • Mfr. Part No. P1MB1NC25
Each
TWD1,941.00(exc. GST)
In Stock
Europa EUC2P EUC MCB, 2P, 63A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6563
  • Mfr. Part No. EUC2P63C
Each
TWD557.00(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 2P, 2A Curve D, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5744
  • Mfr. Part No. P1MB2PD02
Each
TWD1,987.00(exc. GST)
Temporarily out of stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 4A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3189
  • Mfr. Part No. 5SY4404-8
Each
TWD7,016.00(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 3P, 40A Curve C, 240 → 415V AC, 96V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7134
  • Mfr. Part No. 278979 FAZ-C40/3N
Each
TWD7,505.00(exc. GST)
In Stock
Europa EUC1P EUB MCB, 1P, 16A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6462
  • Mfr. Part No. EUC1P16B
Each
TWD251.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4252
  • Mfr. Part No. 1SDA072377R1
Each
TWD457,638.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 40A Curve C, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 776-3537
  • Mfr. Part No. A9F77640
Each
TWD4,016.00(exc. GST)
Limited stock
Legrand DX Range DNX3 MCB, 1P, 20A Curve C, 250V AC, 12V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 823-4677
  • Mfr. Part No. 4 067 84
Each
TWD1,109.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 50A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3183
  • Mfr. Part No. A9F53150
Each
TWD1,035.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 4kA IZMX/INX Circuit-Breaker, 4 channels , Fixed
  • RS Stock No. 132-754
  • Mfr. Part No. 183909 IZMX40N4-V40F-1
Each
TWD1,407,367.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 4P, 63A Curve B
  • RS Stock No. 219-8286
  • Mfr. Part No. A9N18434
Each
TWD18,509.00(exc. GST)
1
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