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

51 of 999+
In Stock
Eaton xPole MCB, 2P, 6A Curve C, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 864-4355
  • Mfr. Part No. 242399 PLSM-C6/2-MW
Each
R 1,689.30(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 25A Curve C, 250V DC, 20 kA Breaking Capacity
  • RS stock no. 776-3171
  • Mfr. Part No. A9N61513
Each
R 657.72(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 63A Curve K, 400V AC, 6 kA Breaking Capacity
  • RS stock no. 746-8012
  • Mfr. Part No. 2CDS252001R0607 S202-K63
Each
R 2,215.30(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40K MCB, 1+N, 2A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 238-3409
  • Mfr. Part No. A9P71602
Each
R 832.79(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
Schneider Electric, ComPacT NSX MCCB 3P 200A, Fixed Mount
  • RS stock no. 254-6360
  • Mfr. Part No. C25N3TM200
Each
R 35,514.91(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA 1SDA07, 3 channels
  • RS stock no. 259-3196
  • Mfr. Part No. 1SDA071062R1
Each
R 173,395.31(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4H MCCB 3P 250A, Fixed Mount
  • RS stock no. 236-6630
  • Mfr. Part No. 1SDA068175R1 XT4H 250 BLOC FF
Each
R 10,531.95(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 6A Curve C, 440V AC, 250V DC, 6 kA Breaking Capacity
  • RS stock no. 776-3521
  • Mfr. Part No. A9F77406
Each
R 1,398.65(exc. VAT)
In Stock
Better World
Siemens, SENTRON Circuit breaker 3P 630A, Breaking Capacity 85 kA, DIN Rail Mount
  • RS stock no. 224-7918
  • Mfr. Part No. 3VA2463-5HL32-0AA0
Each
R 34,132.64(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 6A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3518
  • Mfr. Part No. A9F55206
Each
R 2,099.41(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS stock no. 148-175
  • Mfr. Part No. 3VA5110-6GC41-0AA0
Each
R 10,189.03(exc. VAT)
Temporarily out of stock
Europa 3 Phase Distribution Board, 42 Way, 125 A
  • RS stock no. 849-6424
  • Mfr. Part No. TPN14
Each
R 14,496.42(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 7A Current Rating
  • RS stock no. 782-0927
  • Mfr. Part No. W58-XB1A4A-7
Each
R 188.03(exc. VAT)
In Stock
Eaton xEffect MCB, 3+N, 16A Curve C, 415V AC, 10 kA Breaking Capacity
  • RS stock no. 230-0962
  • Mfr. Part No. 239173 FAZ6-C16/3N
Each
R 910.10(exc. VAT)
Temporarily out of stock
ABB High Performance S800N MCB, 4P, 63A Curve C, 690V AC, 375V DC, 36 kA Breaking Capacity
  • RS stock no. 183-3682
  • Mfr. Part No. 2CCS894001R0634
Each
R 6,922.17(exc. VAT)
Unavailable
Schneider Electric Acti 9 iC60N MCB, 2P, 32A Curve C, 440V AC, 144V DC, 6 kA Breaking Capacity
  • RS stock no. 776-9018
  • Mfr. Part No. A9F74232
Each
R 427.65(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 3P, 10A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 772-1372
  • Mfr. Part No. 5SY4310-7
Each
R 2,022.34(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 1+N, 32A Curve C, 230V AC, 72V DC
  • RS stock no. 212-8877
  • Mfr. Part No. 5SL6532-7
Each
R 1,184.55(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V Voltage Rating DIN Rail Mount, 65A Current
  • RS stock no. 272-937
  • Mfr. Part No. GV3P65
Each
R 6,060.63(exc. VAT)
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