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

138 of 999+
Eaton xEffect FAZ MCB, 1+N, 4A Curve B, 230V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS stock no. 254-183
  • Mfr. Part No. 240997 FAZT-B4/1N
Each
R 1,689.55(exc. VAT)
Schneider Electric Motor Mechanism for use with ComPacT NSX New Generation
  • RS stock no. 130-994
  • Mfr. Part No. LV429441
Each
R 25,566.92(exc. VAT)
Schneider Electric Mureva Enclosure for Plug and Socket
  • RS stock no. 119-363
  • Mfr. Part No. 13153M
Each
R 2,441.66(exc. VAT)
Legrand DX3 RCCB, 63A, 3+N Pole, 300mA, Type AC
  • RS stock no. 732-0089
  • Mfr. Part No. 4 116 66
Each
R 7,632.30(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Plug In
  • RS stock no. 231-654
  • Mfr. Part No. 110841 NZMN3-AE400-AVE
Each
R 57,975.44(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 25A Curve C, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3323
  • Mfr. Part No. A9F87425
Each
R 1,997.55(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS stock no. 270-3779
  • Mfr. Part No. 3VA2040-7JQ32-0AA0
Each
R 28,099.36(exc. VAT)
Siemens SENTRON Nut Keeper Kit for use with 3VA1
  • RS stock no. 269-7068
  • Mfr. Part No. 3VA9113-0QG00
Each (In a Pack of 3)
R 237.287(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 32A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 271-9880
  • Mfr. Part No. 3VA1132-3GD42-0AA0
Each
R 5,735.47(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSIG, 4 channels
  • RS stock no. 259-4617
  • Mfr. Part No. 1SDA072886R1
Each
R 159,166.09(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating Panel Mount, 10A Current
  • RS stock no. 170-9405
  • Mfr. Part No. W28-XQ1A-10
Each (In a Bag of 100)
R 62.948(exc. VAT)
Better World
Schneider Electric Junction Box, IP55
  • RS stock no. 219-8955
  • Mfr. Part No. KSB50SF4
Each
R 6,420.26(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS stock no. 270-4096
  • Mfr. Part No. 3VA2116-7HN32-0AA0
Each
R 22,525.85(exc. VAT)
Better World
Siemens 5sV3 RCCB, 40A, 4 Pole, 30mA, 400V ac
  • RS stock no. 211-9642
  • Mfr. Part No. 5SV3344-4KK14
Each
R 17,338.41(exc. VAT)
Better World
Siemens SENTRON Fire Safety Circuit Breaker, 1+N, 20A Curve C, 230V AC
  • RS stock no. 238-3214
  • Mfr. Part No. 5SV6016-7MC20
Each
R 6,949.73(exc. VAT)
Schneider Electric PowerPact Electronic Circuit Breaker 600A PowerPacT, Fixed Type C
  • RS stock no. 341-450
  • Mfr. Part No. NLLF36000S60XTW
Each
R 87,207.78(exc. VAT)
ABB S204L MCB, 4P, 16A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS stock no. 201-396
  • Mfr. Part No. 2CDS244701R0161
Each
R 2,115.41(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 2.5A, Fixed Mount
  • RS stock no. 260-9455
  • Mfr. Part No. C10H3MA003
Each
R 15,846.50(exc. VAT)
ABB S800S MCB, 4P, 25A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS stock no. 140-718
  • Mfr. Part No. 2CCS864001R0254
Each
R 8,110.78(exc. VAT)
Siemens ALPHA Assembly Kit for use with ALPHA DIN Installation Distributor
  • RS stock no. 272-0349
  • Mfr. Part No. 8GK4500-1KK22
Each
R 12,075.11(exc. VAT)
1
138
1953
Results per page

Related links