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

39049 Products showing for Circuit Breakers

86 of 999+
Temporarily out of stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 8A Curve D, 277V AC
  • RS stock no. 256-6817
  • Mfr. Part No. M9F53208
Each
R 3,194.96(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 4A Curve C, 500V DC, 20 kA Breaking Capacity
  • RS stock no. 776-3203
  • Mfr. Part No. A9N61524
Each
R 1,380.01(exc. VAT)
Temporarily out of stock
Schneider Electric Masterpact Controller for use with Compact NS100 → 630, Compact NS630b → 1600,
  • RS stock no. 247-1725
  • Mfr. Part No. 29380
Each
R 37,065.64(exc. VAT)
In Stock
Hager MJT MCB, 2P, 20A Curve C, 240 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 144-4951
  • Mfr. Part No. MJT720
Each
R 669.16(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 63A, Fixed Mount
  • RS stock no. 236-6576
  • Mfr. Part No. 1SDA068053R1 XT3N 250 TMD 63A FF
Each
R 8,756.53(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP3 MCB, 3P, 35A, Type E, 25 kA Breaking Capacity
  • RS stock no. 202-7112
  • Mfr. Part No. 5SP3835-2
Each
R 5,717.20(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 20A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 271-9839
  • Mfr. Part No. 3VA1120-6GE46-0AA0
Each
R 8,276.70(exc. VAT)
Temporarily out of stock
ABB IEC Range Busbar for use with S200C
  • RS stock no. 250-4789
  • Mfr. Part No. 2CDL803141R1111
1 Box of 15
R 45,160.31(exc. VAT)
Temporarily out of stock
Allen Bradley 140MT Three Phase Busbar, 45mm Pitch
  • RS stock no. 273-2320
  • Mfr. Part No. 140MT-C-W453
Each
R 316.49(exc. VAT)
Temporarily out of stock
ABB Tmax XT Plate for use with Circuit Breaker
  • RS stock no. 231-9372
  • Mfr. Part No. 1SDA105123R1 MIR-P x XT5 P/W 400A FP
1 Box of 1
R 2,707.12(exc. VAT)
In Stock
Better World
Schneider Electric iC60 RCD, 63A, 300mA
  • RS stock no. 776-2922
  • Mfr. Part No. A9V35463
Each
R 14,022.34(exc. VAT)
In Stock
Murrelektronik Limited Mico Pro Distribution Block for use with Circuit Breaker
  • RS stock no. 284-8052
  • Mfr. Part No. 9000-41000-0000212
Each
R 1,054.58(exc. VAT)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 16A, 4 Pole, 300mA, 240/415V ac
  • RS stock no. 123-618
  • Mfr. Part No. 170446 FRCMM-16/4/03-S/A
Each
R 7,318.32(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA2 100/160/250
  • RS stock no. 218-1843
  • Mfr. Part No. 3VA9267-0EK23
Each
R 2,773.49(exc. VAT)
Temporarily out of stock
Schneider Electric Connection Unit, PrismaSeT G Series
  • RS stock no. 119-557
  • Mfr. Part No. LVS04024
Each
R 12,415.55(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 125A, 4 Pole, 500mA, Type B, 400V ac
  • RS stock no. 176-9630
  • Mfr. Part No. F204B-125/0.5
Each
R 126,412.08(exc. VAT)
Temporarily out of stock
Hager MCCB 3P 40A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 144-4933
  • Mfr. Part No. HHA040H
Each
R 10,335.64(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY MCB, 3+N, 32A Curve B
  • RS stock no. 232-2325
  • Mfr. Part No. 5SY6632-6
Each
R 2,882.74(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 3P, 50A Curve B
  • RS stock no. 216-4342
  • Mfr. Part No. 5SY7350-6
Each
R 3,043.84(exc. VAT)
In Stock
ETA ESX10 Electronic Circuit breaker 10A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS stock no. 210-2129
  • Mfr. Part No. ESX10-TB-101-DC24V-10A-E
Each
R 2,401.24(exc. VAT)
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