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

39059 Products showing for Circuit Breakers

15 of 999+
In Stock
Hager MJT MCB, 2P, 16A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 144-4950
  • Mfr. Part No. MJT716
Each
R 643.85(exc. VAT)
In Stock
Schneider Electric, ComPacT New Generation MCCB 3P 150A, Fixed Mount
  • RS stock no. 260-7779
  • Mfr. Part No. C16H3MA150
Each
R 23,502.78(exc. VAT)
Temporarily out of stock
Phoenix Contact 2 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS stock no. 201-6714
  • Mfr. Part No. 2905338
Each
R 5,114.79(exc. VAT)
In Stock
Carling Technologies Thermal Circuit Breaker - C Single Pole 240V Voltage Rating Panel Mount, 30A Current Rating
  • RS stock no. 881-0830
  • Mfr. Part No. CA1-B0-34-630-121-C
Each
R 607.71(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 1P, 10A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 488-6836
  • Mfr. Part No. 2CDS251001R0104 - S201C10
Each
R 430.02(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 160A, Fixed Mount
  • RS stock no. 254-6341
  • Mfr. Part No. C16B42D160
Each
R 21,139.05(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 1P, 16A Curve C, 15 kA Breaking Capacity
  • RS stock no. 219-9266
  • Mfr. Part No. A9F94116
Each
R 1,301.99(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve C, 400V AC, 12 → 144V DC, 10 kA Breaking Capacity
  • RS stock no. 734-9286
  • Mfr. Part No. A9F87210
Each
R 1,268.17(exc. VAT)
Limited stock
Legrand HX 1 Phase Busbar, 400V, 17.7mm Pitch
  • RS stock no. 731-9433
  • Mfr. Part No. 4 049 26
Each
R 181.71(exc. VAT)
In Stock
Weidmuller 1 Phase Surge Protector, 16A, DIN Rail Mount
  • RS stock no. 249-3334
  • Mfr. Part No. 1351650000
Each
R 2,170.80(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 150A, Fixed Mount
  • RS stock no. 260-7757
  • Mfr. Part No. C16F3MA150
Each
R 17,544.70(exc. VAT)
In Stock
Hager CDS RCD Switch, 40A, 2 Pole, 30mA, Type A, 230V
  • RS stock no. 251-2032
  • Mfr. Part No. CDS743F
Each
R 2,967.34(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 6A Curve C, 100 → 130V AC, 12 → 144V DC, 10 kA Breaking Capacity
  • RS stock no. 734-9282
  • Mfr. Part No. A9F87206
Each
R 1,268.17(exc. VAT)
New product - Preorder today
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 50 kA, Fixed Mount
  • RS stock no. 655-144
  • Mfr. Part No. C080N320FM
Each
R 65,912.08(exc. VAT)
Temporarily out of stock
Legrand 39 Way High Impact Polystyrene Consumer Unit, 90A, IP30 Drivia
  • RS stock no. 786-5630
  • Mfr. Part No. 4 012 13
Each
R 3,116.36(exc. VAT)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 2A Current Rating
  • RS stock no. 284-6072
  • Mfr. Part No. 4410.0126
Each
R 467.76(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 2P, 6A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 196-3628
  • Mfr. Part No. 5SY6206-7
Each
R 1,188.07(exc. VAT)
Temporarily out of stock
Eaton Single Phase Surge Protector, 40kA, 1.8kV, DIN Rail Mount
  • RS stock no. 121-149
  • Mfr. Part No. 167623 SPCT2-385-1+NPE
Each
R 2,905.57(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS stock no. 157-166
  • Mfr. Part No. 3VA2216-7MN32-0AA0
Each
R 19,403.93(exc. VAT)
Temporarily out of stock
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type A
  • RS stock no. 186-3467
  • Mfr. Part No. 2CSF202124R1630
Each
R 2,275.90(exc. VAT)
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