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

39067 Products showing for Circuit Breakers

4 of 999+
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS stock no. 254-6342
  • Mfr. Part No. C16F3
Each
R 8,650.43(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 36 kA, Fixed Mount
  • RS stock no. 211-3751
  • Mfr. Part No. 3VA1340-4EF32-0AA0
Each
R 20,982.32(exc. VAT)
Better World
Siemens SENTRON 5SL60 MCB, 1P + N, 32A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS stock no. 328-548
  • Mfr. Part No. 5SL6032-7KL
Each
R 1,436.34(exc. VAT)
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS stock no. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Each
R 123.64(exc. VAT)
nVent ERIFLEX ERIFLEX Busbar, 18mm Pitch
  • RS stock no. 277-6092
  • Mfr. Part No. 550200
Each (In a Pack of 10)
R 837.73(exc. VAT)
ETA Thermal Circuit Breaker - 1140-E Single Pole 250V Voltage Rating Integral Mount, 10A Current Rating
  • RS stock no. 728-8673
  • Mfr. Part No. 1140-E211-P1M1-10A
Each
R 311.79(exc. VAT)
Eaton xEffect MCB, 1P, 16A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 769-4560
  • Mfr. Part No. 239037 FAZ6-C16/1
Each
R 534.98(exc. VAT)
Better World
Schneider Electric Surge Protector, 20kA, DIN Rail Mount
  • RS stock no. 219-8279
  • Mfr. Part No. A9L65601
Each
R 23,708.01(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 232-0095
  • Mfr. Part No. 1SDA054437R1 T5N400 FF TMA 400A
Each
R 27,650.50(exc. VAT)
Better World
Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis Series
  • RS stock no. 406-344
  • Mfr. Part No. KNB32CM55
Each
R 2,302.06(exc. VAT)
Eaton Eaton Distribution Parts 1 Phase Busbar, 415V, 17.8mm Pitch
  • RS stock no. 259-043
  • Mfr. Part No. 270339 Z-GV-10/1P-1TE
Each
R 423.71(exc. VAT)
Better World
Schneider Electric RCBO, 40A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3264
  • Mfr. Part No. A9DA3740
Each
R 9,692.58(exc. VAT)
Eaton xEffect MCB, 1P, 30A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 922-6911
  • Mfr. Part No. 102093 FAZ-C30/1-NA
Each
R 947.38(exc. VAT)
Contactum T2C RCD, 32A, Type C
  • RS stock no. 188-1754
  • Mfr. Part No. T2C4011KIT
Each
R 1,397.58(exc. VAT)
Eaton RCD, 25A, 2 Pole, 30mA, Type B, 230V
  • RS stock no. 922-8746
  • Mfr. Part No. 236269 PKNM-25/1N/B/003-A-MW
Each
R 2,823.91(exc. VAT)
Eaton xEffect MCB, 3P, 15A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3279
  • Mfr. Part No. 278872 FAZ-C15/3
Each
R 2,175.89(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 250A, Fixed Mount
  • RS stock no. 254-6353
  • Mfr. Part No. C25F32D250
Each
R 39,224.62(exc. VAT)
Better World
Siemens, Sentron Circuit breaker 3P 150A, DIN Rail Mount
  • RS stock no. 196-3581
  • Mfr. Part No. 3VA61701MS310AA0
Each
R 11,346.51(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 20A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3458
  • Mfr. Part No. A9F77120
Each
R 272.22(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 10A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3446
  • Mfr. Part No. A9F77110
Each
R 272.22(exc. VAT)
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