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

39059 Products showing for Circuit Breakers

30 of 999+
Limited stock
ETA REX12 Electronic Circuit breaker 10A 24V REX12-T, DIN Rail Mount
  • RS stock no. 175-0369
  • Mfr. Part No. REX12-TA1-107-DC24V-10A
Each
R 967.00(exc. VAT)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 6A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS stock no. 247-890
  • Mfr. Part No. 132756 FAZ-B6/2-RT
Each
R 2,480.60(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS stock no. 250-4134
  • Mfr. Part No. 1SDA054401R1
Each
R 60,659.35(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 231-9327
  • Mfr. Part No. 1SDA100345R1 XT5N 400 TMA 400-4000 3pFF
Each
R 20,767.48(exc. VAT)
Limited stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 4A Curve C, 400V AC, 125V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9220
  • Mfr. Part No. A9F74204
Each
R 1,112.32(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Hi-Touch LSI, 3 channels
  • RS stock no. 259-3219
  • Mfr. Part No. 1SDA071088R1
Each
R 286,420.30(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS stock no. 231-9348
  • Mfr. Part No. 1SDA100718R1 XT6N 800 TMA 800-8000 3pFF
Each
R 40,800.32(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 2P, 125A Curve C, 440V AC, 250V DC, 10 kA Breaking Capacity
  • RS stock no. 219-8297
  • Mfr. Part No. A9N18459
Each
R 4,929.12(exc. VAT)
Temporarily out of stock
Schneider Electric Acti 9 MCB, 3P, 10A Curve C, 230V AC, 7.5 kA Breaking Capacity
  • RS stock no. 200-6156
  • Mfr. Part No. A9PA2710
Each
R 4,314.21(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX MCCB 3P 250A, Fixed Mount
  • RS stock no. 254-6352
  • Mfr. Part No. C25F3
Each
R 10,746.80(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 2P, 2A Curve C, 277V AC, 96V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1468
  • Mfr. Part No. 1492-SPM2C020
Each
R 1,145.42(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 15 kA, Fixed Mount
  • RS stock no. 255-697
  • Mfr. Part No. 259099 NZMH2-A100
Each
R 13,961.95(exc. VAT)
Unavailable
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 100A, Fixed Mount
  • RS stock no. 221-1077
  • Mfr. Part No. LV438018
Each
R 9,025.42(exc. VAT)
In Stock
Schneider Electric ComPacT NSX Rotary Handle for use with NSX630
  • RS stock no. 272-7477
  • Mfr. Part No. LV432598T
Each
R 4,854.74(exc. VAT)
Unavailable
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 500A, Fixed Mount
  • RS stock no. 221-1056
  • Mfr. Part No. LV433722
Each
R 87,655.45(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 63A Curve C, 400V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9276
  • Mfr. Part No. A9F77263
Each
R 1,103.01(exc. VAT)
In Stock
RS PRO MCB, 2P, 10A Curve B, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 265-0159
Each
R 486.26(exc. VAT)
Temporarily out of stock
F Lutze Ltd Copper Bus Bar Interconnection Strip, 1 Piece pieces
  • RS stock no. 891-8962
  • Mfr. Part No. 716426
Each (In a Pack of 5)
R 677.256(exc. VAT)
Limited stock
ABB SN201 MCB, 1+N, 1A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 191-9454
  • Mfr. Part No. 2CSS245102R0014
Each
R 491.34(exc. VAT)
In Stock
ETA ESX10 Electronic Circuit breaker 1A 24V ESX10-T, 1 channels , Slide Switch DIN Rail
  • RS stock no. 210-2131
  • Mfr. Part No. ESX10-TB-101-DC24V-1A-E
Each
R 2,082.43(exc. VAT)
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