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

202 of 999+
Better World
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 210-1693
  • Mfr. Part No. 3VA1225-5EF42-0AA0
Each
R 23,339.99(exc. VAT)
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Dip LSI, 3 channels
  • RS stock no. 259-3204
  • Mfr. Part No. 1SDA071072R1
Each
R 212,777.75(exc. VAT)
Europa EUB1 EUB MCB, 1P, 63A Curve B, 230V AC
  • RS stock no. 798-2227
  • Mfr. Part No. EUB163B
Each
R 118.46(exc. VAT)
ABB F200 RCCB, 40A, 2 Pole, 300mA, Type A
  • RS stock no. 488-6432
  • Mfr. Part No. 2CSF202101R3400 - F202A-40/0.3
Each
R 2,924.13(exc. VAT)
Better World
Siemens, SENTRON Circuit breaker 2P 160A, DIN Rail Mount
  • RS stock no. 224-7810
  • Mfr. Part No. 3VA1116-3ED26-0AA0
Each
R 8,749.09(exc. VAT)
ABB, Tmax MCCB 3P 400A, Fixed Mount
  • RS stock no. 237-5965
  • Mfr. Part No. 1SDA054337R1 T5S400 FF PR222-LSI 400A
Each
R 40,187.44(exc. VAT)
Eaton IZMX/INX Terminal Kit for use with INX163 Series, IZMX163 Series
  • RS stock no. 132-424
  • Mfr. Part No. 183972 IZMX-THVL163-1
Each
R 12,826.15(exc. VAT)
Schneider Electric Acti 9 iC60N MCB, 1P, 25A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 776-8983
  • Mfr. Part No. A9F74125
Each
R 113.03(exc. VAT)
ABB S802C MCB, 2P, 16A Curve C, 415V AC, 25 kA Breaking Capacity
  • RS stock no. 141-048
  • Mfr. Part No. 2CCS882001R0164
Each
R 2,434.62(exc. VAT)
Rockwell Automation 1492-SP 1492-SPM MCB, 2P, 500mA Curve C
  • RS stock no. 218-8794
  • Mfr. Part No. 1492-SPM2C005
Each
R 1,172.00(exc. VAT)
Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 10A Curve D, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 211-2439
  • Mfr. Part No. M9F43110
Each
R 969.48(exc. VAT)
Hager BFF Series RCCB, 25A, 3 Pole, 300mA, Type F
  • RS stock no. 597-980
  • Mfr. Part No. BFF325
Each
R 9,467.32(exc. VAT)
Allen Bradley 1492 1492-SPM MCB, 2P, 25A Curve C, 277V AC, 96V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1475
  • Mfr. Part No. 1492-SPM2C250
Each
R 1,209.62(exc. VAT)
Omron Busbar
  • RS stock no. 111-3536
  • Mfr. Part No. PYDN-7.75-030Y
Each
R 32.90(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 1P, 63A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 746-7687
  • Mfr. Part No. 2CDS251001R0634 S201-C63
Each
R 466.11(exc. VAT)
Siemens, SENTRON MCCB 3P 225A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 147-807
  • Mfr. Part No. 3VA5222-6EC31-2AA0
Each
R 24,841.27(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 40A, Fixed Mount
  • RS stock no. 260-7482
  • Mfr. Part No. C10W32D040
Each
R 33,841.86(exc. VAT)
Siemens ALPHA Distribution Board
  • RS stock no. 272-0272
  • Mfr. Part No. 8GK1051-4KK30
Each
R 41,312.29(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 200 kA, Fixed Mount
  • RS stock no. 270-4050
  • Mfr. Part No. 3VA2116-0HL36-0AA0
Each
R 23,014.66(exc. VAT)
Better World
Siemens RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, SENTRON Range
  • RS stock no. 211-9614
  • Mfr. Part No. 5SU1354-4KK40
Each
R 4,173.16(exc. VAT)
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