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

91 of 999+
Temporarily out of stock
Siemens SIVACON S4 Busbar, 80mm Pitch
  • RS stock no. 626-511
  • Mfr. Part No. 8PQ4000-2BA26
1 Set
R 7,611.72(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3+N, 25A, Type Z, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS stock no. 201-072
  • Mfr. Part No. 2CDS273103R0518
Each
R 3,882.33(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 36 kA, Fixed Mount
  • RS stock no. 209-5075
  • Mfr. Part No. 3VA1220-4EF32-0AA0
Each
R 12,028.89(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY7 MCB, 1+N, 32A Curve C
  • RS stock no. 216-5944
  • Mfr. Part No. 5SY7532-7
Each
R 1,696.30(exc. VAT)
Temporarily out of stock
ABB S800S MCB, 3P, 13A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS stock no. 141-080
  • Mfr. Part No. 2CCS863001R0134
Each
R 6,059.66(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS stock no. 914-4055
  • Mfr. Part No. 2CSR255051R1205 DSE201 B20 AC30 - N Blue
Each
R 1,749.58(exc. VAT)
In Stock
Contactum MCB, 3P, 50A Curve C, 415V AC, 10 kA Breaking Capacity
  • RS stock no. 184-9051
  • Mfr. Part No. CPB1050C3
Each
R 493.27(exc. VAT)
Temporarily out of stock
Hager GAMMA 1 Phase Distribution Board, 4 Way, 63 A
  • RS stock no. 252-2609
  • Mfr. Part No. GD418A
Each
R 4,225.75(exc. VAT)
Temporarily out of stock
ABB, T6D MCCB 3P 800A, Fixed Mount
  • RS stock no. 237-5995
  • Mfr. Part No. 1SDA060345R1 T6D 800 FF
Each
R 49,707.95(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 32A Curve K, 15 kA Breaking Capacity
  • RS stock no. 219-9312
  • Mfr. Part No. A9F95432
Each
R 10,124.87(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 1P, 63A Curve B, 400V AC, 72V DC
  • RS stock no. 212-9000
  • Mfr. Part No. 5SL6163-6
Each
R 493.34(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 63A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3243
  • Mfr. Part No. A9F53363
Each
R 3,604.93(exc. VAT)
In Stock
Eaton xEffect MCB, 1+N, 32A Curve B
  • RS stock no. 230-0909
  • Mfr. Part No. 239050 FAZ6-B32/1N
Each
R 867.06(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 160A NZM, 3 channels , Fixed
  • RS stock no. 120-723
  • Mfr. Part No. 169028 NZML2-4-VE160-SVE
Each
R 46,574.72(exc. VAT)
In Stock
Schneider Electric Resi9 Busbar, 230V ac, 18mm Pitch
  • RS stock no. 466-502
  • Mfr. Part No. R9PXH218
1 Pack of 5
R 1,043.60(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 250 DC
  • RS stock no. 260-7853
  • Mfr. Part No. C254TM250D
Each
R 15,525.03(exc. VAT)
In Stock
Eaton RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBm6 Range
  • RS stock no. 123-306
  • Mfr. Part No. 170802 FRBM6-C40/2/003-LIA
Each
R 3,835.14(exc. VAT)
Temporarily out of stock
Hager BD Series RCCB, 40A, 2 Pole, 30mA, Type AC, 230/400V
  • RS stock no. 597-893
  • Mfr. Part No. BD246
Each
R 5,628.53(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W57 Single Pole 250V ac Voltage Rating, 15A Current Rating
  • RS stock no. 782-7922
  • Mfr. Part No. W57-XB1A7A10-15
Each
R 81.17(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 63A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 271-9609
  • Mfr. Part No. 3VA10633ED360AA0
Each
R 4,612.83(exc. VAT)
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