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

215 of 999+
Temporarily out of stock
ABB S303 MCB, 3P, 6A Curve K, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 200-937
  • Mfr. Part No. 2CDS383001R0377
Each
R 3,584.62(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 25A
  • RS stock no. 224-7834
  • Mfr. Part No. 3VA1125-5ED22-0AA0
Each
R 4,971.52(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 20A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 271-9565
  • Mfr. Part No. 3VA10203ED420AA0
Each
R 5,435.57(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3293
  • Mfr. Part No. A9DK5616
Each
R 5,271.47(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS stock no. 271-9612
  • Mfr. Part No. 3VA10634ED360AA0
Each
R 5,047.32(exc. VAT)
In Stock
Allen Bradley 140MT Auxiliary Contact for use with Motor Protection Circuit Breaker
  • RS stock no. 273-2274
  • Mfr. Part No. 140MT-C-AFAR01A10
Each
R 348.92(exc. VAT)
Temporarily out of stock
Eaton Eaton xEnergy Basic Busbar
  • RS stock no. 259-301
  • Mfr. Part No. 289863 BPZ-BB/T-32/5/1000
1 Pack of 4
R 23,420.35(exc. VAT)
Temporarily out of stock
ABB S303 MCB, 3P, 50A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 200-945
  • Mfr. Part No. 2CDS383001R0504
Each
R 3,518.45(exc. VAT)
In Stock
ABB S303 MCB, 3P, 6A Curve D, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 203-056
  • Mfr. Part No. 2CDS383001R0061
Each
R 3,382.06(exc. VAT)
Temporarily out of stock
ABB S303 MCB, 3P, 63A Curve K, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS stock no. 201-359
  • Mfr. Part No. 2CDS383001R0607
Each
R 4,788.10(exc. VAT)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure, 2 Way
  • RS stock no. 125-103
  • Mfr. Part No. 178832 KLV-48UPM-F
Each
R 7,323.10(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS stock no. 270-4038
  • Mfr. Part No. 3VA2110-8JQ42-0AA0
Each
R 33,785.76(exc. VAT)
Temporarily out of stock
ABB Tmax XT Changeover Contact for use with Circuit Breaker
  • RS stock no. 232-0188
  • Mfr. Part No. 1SDA066448R1 AUX-C 3Q+1SY 24VDC XT2..4
Each
R 2,833.25(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 50A, Fixed Mount
  • RS stock no. 260-7575
  • Mfr. Part No. C11E4TM050B
Each
R 9,759.59(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 500A, Breaking Capacity 110 kA, Fixed Mount
  • RS stock no. 270-3518
  • Mfr. Part No. 3VA1450-7MH32-0AA0
Each
R 40,269.07(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Vertical Distribution Busbar Trunking, 2.5m, 630A, Canalis KS Series
  • RS stock no. 211-0484
  • Mfr. Part No. KSA630EV4254
Each
R 60,681.72(exc. VAT)
Temporarily out of stock
ABB, Tmax MCCB 3P 1.25kA, Fixed Mount
  • RS stock no. 237-6001
  • Mfr. Part No. 1SDA062038R1 T7D-M 1250A FF
Each
R 64,785.86(exc. VAT)
In Stock
Eaton xPole MCB, 1+N, 16A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 230-1076
  • Mfr. Part No. 264746 PLG4-C16/1N
Each
R 267.85(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3356
  • Mfr. Part No. A9DX2632
Each
R 8,902.45(exc. VAT)
In Stock
Schneider Electric Linergy Busbar, 25mm Pitch
  • RS stock no. 130-813
  • Mfr. Part No. LVS04127
Each
R 10,106.87(exc. VAT)
1
215
1953
Results per page

Related links