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

88 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 269-873
  • Mfr. Part No. 3VA6110-5HL31-2AA0
Each
R 13,510.05(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 147-841
  • Mfr. Part No. 3VA5225-6ED31-1AA0
Each
R 23,653.04(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 630A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 272-0170
  • Mfr. Part No. 3VA1563-5EF32-0AA0
Each
R 37,803.04(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 63A, 4 Pole, 500mA, 400V ac
  • RS stock no. 176-9624
  • Mfr. Part No. F204BS-63/0.5
Each
R 36,474.52(exc. VAT)
In Stock
ABB System Pro M Compact S200M MCB, 1P, 6A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 535-4138
  • Mfr. Part No. 2CDS271001R0064 S201M-C6
Each
R 537.14(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 500A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 209-5236
  • Mfr. Part No. 3VA2450-5KP32-0AA0
Each
R 52,036.65(exc. VAT)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS stock no. 277-0823
  • Mfr. Part No. 3WA9111-0AV24
Each
R 1,688.67(exc. VAT)
Temporarily out of stock
Schneider Electric, Compact MCCB 3P 630A, Breaking Capacity 200 kA, Fixed Mount
  • RS stock no. 212-0277
  • Mfr. Part No. LV433707
Each
R 111,627.84(exc. VAT)
In Stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 20A Current Rating
  • RS stock no. 221-5636
  • Mfr. Part No. 3-128-240
1 Box of 10
R 4,036.94(exc. VAT)
Temporarily out of stock
Allen Bradley 1492-SP 1492-SPM MCB, 1P, 13A Curve D
  • RS stock no. 218-8767
  • Mfr. Part No. 1492-SPM1D130
Each (In a Pack of 2)
R 517.10(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 70 kA
  • RS stock no. 209-6970
  • Mfr. Part No. 3VA1112-6EE36-0AA0
Each
R 9,463.93(exc. VAT)
In Stock
ABB Tmax XT Changeover Contact for use with Circuit Breaker
  • RS stock no. 232-0183
  • Mfr. Part No. 1SDA066431R1 AUX-C 1Q+1SY 250V XT1..XT4
Each
R 1,341.10(exc. VAT)
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 63A, 2 Pole, 300mA, Type F, 230V ac
  • RS stock no. 211-9679
  • Mfr. Part No. 5SV3616-3
Each
R 9,902.80(exc. VAT)
Temporarily out of stock
ABB S800U MCB, 4P, 100A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS stock no. 140-832
  • Mfr. Part No. 2CCS864017R0825
Each
R 12,582.11(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2kA IZMX, 4 channels
  • RS stock no. 132-717
  • Mfr. Part No. 183775 IZMX40H4-P20F-1
Each
R 413,285.66(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 4P, 32A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS stock no. 825-6006
  • Mfr. Part No. P1MB4PD32
Each
R 2,795.38(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 6A Curve C, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9239
  • Mfr. Part No. A9F77206
Each
R 905.87(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 36 kA
  • RS stock no. 209-6814
  • Mfr. Part No. 3VA1140-4ED32-0AA0
Each
R 4,741.85(exc. VAT)
In Stock
Schurter CBE Thermal Circuit Breaker - TA45 2 Pole 240V ac Voltage Rating Snap-In, 15A Current Rating
  • RS stock no. 269-3822
  • Mfr. Part No. 4430.0031
Each
R 434.22(exc. VAT)
Temporarily out of stock
Schneider Electric C120 RCD, 125A, 300mA
  • RS stock no. 776-2847
  • Mfr. Part No. A9N18567
Each
R 8,738.44(exc. VAT)
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