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

118 of 999+
In Stock
Eaton xEffect MCB, 2P, 12A Curve C, 240 → 415V AC, 96V DC, 15 kA Breaking Capacity
  • RS stock no. 270-5266
  • Mfr. Part No. 278757 FAZ-C12/2
Each
R 2,919.70(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 2P, 1A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 196-3624
  • Mfr. Part No. 5SY6201-7
Each
R 1,189.72(exc. VAT)
In Stock
Legrand DX3 RCD, 32A, 3+N Pole, 300mA, Type AC
  • RS stock no. 732-0008
  • Mfr. Part No. 4 112 08
Each
R 12,350.49(exc. VAT)
In Stock
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 2P, 1A Curve B, 277V AC
  • RS stock no. 256-6751
  • Mfr. Part No. M9F21201
Each
R 2,317.05(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 150 kA, Fixed Mount
  • RS stock no. 270-3794
  • Mfr. Part No. 3VA2040-8HL42-0AA0
Each
R 22,048.22(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Breaking Capacity 15 kA, Fixed Mount
  • RS stock no. 345-305
  • Mfr. Part No. C10B47E100
Each
R 83,895.60(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Dip LI, 3 channels
  • RS stock no. 259-3099
  • Mfr. Part No. 1SDA070951R1
Each
R 102,955.19(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 800A , DIN Rail
  • RS stock no. 127-494
  • Mfr. Part No. 183352 IZMX16H3-V08W-1
Each
R 105,685.78(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 25A 3VA2, 3 channels
  • RS stock no. 157-257
  • Mfr. Part No. 3VA2125-5HM32-0AA0
Each
R 16,845.82(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 13A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS stock no. 225-8774
  • Mfr. Part No. 5SU1654-6KK13
Each
R 3,447.39(exc. VAT)
Temporarily out of stock
Siemens Busbar Trunking Jointing Device, SIVACON S4 Series
  • RS stock no. 633-405
  • Mfr. Part No. 8PQ3000-1BA72
Each
R 5,283.16(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 7A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 245-971
  • Mfr. Part No. 132700 FAZ-B7/2-NA
Each
R 2,375.37(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS stock no. 225-8820
  • Mfr. Part No. 5SV1316-7LK06
Each
R 6,808.53(exc. VAT)
Temporarily out of stock
Schneider Electric Cross Canalis, 450mm, 2500A, LVS Series
  • RS stock no. 654-056
  • Mfr. Part No. LVS04726
Each
R 114,819.77(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with XT4
  • RS stock no. 236-7292
  • Mfr. Part No. 1SDA067465R1 TMD 16-300 XT4 4p
Each
R 12,360.57(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS stock no. 259-4019
  • Mfr. Part No. 1SDA072079R1
Each
R 159,560.50(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA
  • RS stock no. 209-7036
  • Mfr. Part No. 3VA2010-6HL32-0AA0
Each
R 10,201.20(exc. VAT)
In Stock
Better World
Siemens 5sV3 RCCB, 25A, 4 Pole, 30mA, 400V ac
  • RS stock no. 211-9639
  • Mfr. Part No. 5SV3342-4KK14
Each
R 16,824.07(exc. VAT)
In Stock
Better World
Siemens 3VA91 RCD, 160A, 4 Pole, Type B
  • RS stock no. 218-1795
  • Mfr. Part No. 3VA9114-0RL21
Each
R 28,624.27(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 3 channels
  • RS stock no. 157-403
  • Mfr. Part No. 3VA2140-8HM36-0AA0
Each
R 21,010.28(exc. VAT)
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