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

39047 Products showing for Circuit Breakers

234 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 209-4986
  • Mfr. Part No. 3VA1140-5EE42-0AA0
Each
R 7,092.47(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Multi 9 C60SP MCB, 4P, 8A Curve C, 440V AC, 15 kA Breaking Capacity
  • RS stock no. 211-2378
  • Mfr. Part No. M9F22408
Each
R 4,842.76(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS stock no. 746-7766
  • Mfr. Part No. 2CDS253001R0164 S203-C16
Each
R 1,591.85(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Busbar Centre Feed Unit, Canalis KN Series
  • RS stock no. 211-0407
  • Mfr. Part No. KNA100ABT4
Each
R 14,492.15(exc. VAT)
Temporarily out of stock
Siemens 5SM23 RCCB, 40A, 2 Pole, 30mA, Type A, 230V
  • RS stock no. 328-465
  • Mfr. Part No. 5SM2322-6KK01
Each
R 4,065.20(exc. VAT)
Temporarily out of stock
Phoenix Contact EC-E4 10A Electronic Circuit Breaker 10A 24V EC-E, 1 channels , DIN Rail
  • RS stock no. 131-323
  • Mfr. Part No. 0903038
Each (In a Pack of 6)
R 2,573.758(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 6A Curve K, 15 kA Breaking Capacity
  • RS stock no. 219-9298
  • Mfr. Part No. A9F95206
Each
R 5,431.51(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1kA IZMX/INX Circuit-Breaker, Withdrawable
  • RS stock no. 132-631
  • Mfr. Part No. 183571 IZMX16H4-V10W-1
Each
R 161,804.30(exc. VAT)
Temporarily out of stock
Eaton Busbar, 149 Series
  • RS stock no. 121-831
  • Mfr. Part No. 149461 ASNH185RK
Each
R 6,104.14(exc. VAT)
In Stock
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 10A Current Rating
  • RS stock no. 333-271
  • Mfr. Part No. 201-10A
Each
R 978.84(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 1P, 16A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 209-6457
  • Mfr. Part No. 5SL4116-8
Each
R 527.19(exc. VAT)
In Stock
Better World
Siemens 5sV3 RCCB, 16A, 2 Pole, 30mA, Type A, 230V ac
  • RS stock no. 211-9628
  • Mfr. Part No. 5SV3311-6KL
Each
R 3,082.01(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA2 Molded Case Circuit Breakers
  • RS stock no. 629-334
  • Mfr. Part No. 8GK6720-4KK33
Each
R 5,876.13(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 210-1736
  • Mfr. Part No. 3VA2340-5KP42-0AA0
Each
R 48,460.37(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 105 Single Pole 240V Voltage Rating Snap In, 10A Current Rating
  • RS stock no. 728-8632
  • Mfr. Part No. 105-P10-10A
Each
R 320.24(exc. VAT)
Temporarily out of stock
Phoenix Contact Protective Plug for use with PT Series
  • RS stock no. 768-1198
  • Mfr. Part No. 2838322
Each
R 5,111.85(exc. VAT)
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 2A Curve C, 253V AC, 6 kA Breaking Capacity
  • RS stock no. 231-9651
  • Mfr. Part No. 2CDS211001R0024 SH201-C 2
1 Box of 1
R 407.48(exc. VAT)
In Stock
Eaton xPole MCB, 3P, 32A Curve C, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 864-4409
  • Mfr. Part No. 242477 PLSM-C32/3-MW
Each
R 2,190.90(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 4A Curve D, 500V AC, 1000 A Breaking Capacity
  • RS stock no. 428-820
  • Mfr. Part No. A9F85104
Each
R 1,323.79(exc. VAT)
In Stock
Legrand DX Range DX3 MCB, 3P, 32A Curve C, 10 kA Breaking Capacity
  • RS stock no. 731-9733
  • Mfr. Part No. 4 078 32
Each
R 3,491.68(exc. VAT)
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