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

5 of 999+
Schneider Electric, ComPacT MCCB 3P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS stock no. 260-8223
  • Mfr. Part No. C63N32D630
Each
R 102,696.27(exc. VAT)
Eaton xEffect MCB, 2P, 10A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3241
  • Mfr. Part No. 278756 FAZ-C10/2
Each
R 1,508.68(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)
Miniature circuit breaker, 2 A, 1p
  • RS stock no. 611-260
  • Mfr. Part No. PLSM-C2-Q-MW
Each
R 793.45(exc. VAT)
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)2(-4), NZM2(-4), PN2(-4)
  • RS stock no. 255-620
  • Mfr. Part No. 266627 NZM2-XHB
Each
R 2,599.52(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)
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS stock no. 776-2730
  • Mfr. Part No. A9XPH324
Each
R 856.94(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)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 4A Curve C, 240V AC, 72V DC, 50 kA Breaking Capacity
  • RS stock no. 776-3449
  • Mfr. Part No. A9F74104
Each
R 388.71(exc. VAT)
Allen Bradley 140MT Auxiliary Contact for use with Motor Protection Circuit Breaker
  • RS stock no. 273-2272
  • Mfr. Part No. 140MT-C-AFA11
Each
R 234.38(exc. VAT)
Better World
Siemens SENTRON 5SY8 MCB, 2P, 6A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS stock no. 209-6718
  • Mfr. Part No. 5SY8206-7
Each
R 2,527.90(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS stock no. 260-7865
  • Mfr. Part No. C25B3TM200
Each
R 29,517.42(exc. VAT)
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)
Eaton RCD, 32A, 2 Pole, 30mA, Type C
  • RS stock no. 922-8752
  • Mfr. Part No. 236305 PKNM-32/1N/C/003-MW
Each
R 3,375.08(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 9 kA, Fixed Mount
  • RS stock no. 229-459
  • Mfr. Part No. 109684 NZMH3-S250
Each
R 48,754.66(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 4 kA, Plug In
  • RS stock no. 229-913
  • Mfr. Part No. 113233 NZMC2-4-A160-SVE
Each
R 29,265.11(exc. VAT)
RS PRO Residential RCCBs, 25A, 2 Pole, 30mA, Type A, 230V
  • RS stock no. 284-2367
Each
R 711.84(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 150A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 357-931
  • Mfr. Part No. NHDL36150U31X
Each
R 46,930.75(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)
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 6A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS stock no. 125-1421
  • Mfr. Part No. 1492-SPM1B060
Each
R 436.68(exc. VAT)
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