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

39047 Products showing for Circuit Breakers

1510 of 999+
Temporarily out of stock
ABB ZLS728 Spare Parts for use with ZLS728
  • RS stock no. 141-045
  • Mfr. Part No. 2CCS400900R0101
Each
R 632.25(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 32A Curve C, 400V AC
  • RS stock no. 238-3366
  • Mfr. Part No. A9P22332
Each
R 2,859.26(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 175A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 147-490
  • Mfr. Part No. 3VA5217-6EF41-2AA0
Each
R 29,987.88(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 2m, 160A, KNA Series
  • RS stock no. 219-8891
  • Mfr. Part No. KNA160ED4204
Each
R 9,276.60(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40K XA MCB, 1+N, 20A Curve C, 230V AC
  • RS stock no. 238-3444
  • Mfr. Part No. A9PK1620
Each
R 1,063.38(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 2P, 1.5A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3229
  • Mfr. Part No. 102159 FAZ-C1,5/2-NA
Each
R 2,329.06(exc. VAT)
Temporarily out of stock
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS stock no. 240-917
  • Mfr. Part No. 191481 NZMN3-4-VX630-T
Each
R 103,955.95(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • RS stock no. 155-913
  • Mfr. Part No. 3VA2440-5KQ32-0AA0
Each
R 50,586.31(exc. VAT)
In Stock
Mersen Surge Protector, 50kA, 1800V (Volts), DIN Rail Mount
  • RS stock no. 361-609
  • Mfr. Part No. 44020400
Each
R 2,871.74(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1.6kA, Breaking Capacity 42 kA, Fixed Mount
  • RS stock no. 428-759
  • Mfr. Part No. C160H32AFM
Each
R 291,432.90(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 3A Curve C
  • RS stock no. 237-3314
  • Mfr. Part No. 2CDS254001R0034 S204 C 3A - 10 KA
Each
R 4,356.93(exc. VAT)
In Stock
Eaton xEffect MCB, 1+N, 10A Curve D
  • RS stock no. 230-1005
  • Mfr. Part No. 177529 FAZ6-D10/1N
Each
R 733.85(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB, 4P, 63A, Type AC, 500V AC, 30 mA Breaking Capacity
  • RS stock no. 341-114
  • Mfr. Part No. A9V81463
Each
R 22,147.31(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VT Molded Case Circuit Breakers
  • RS stock no. 629-196
  • Mfr. Part No. 8GK4710-4KK10
Each
R 3,548.75(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS stock no. 257-494
  • Mfr. Part No. 3VA5580-6EC36-1AA0
Each
R 90,086.60(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 5A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS stock no. 211-2453
  • Mfr. Part No. M9F43305
Each
R 6,353.69(exc. VAT)
In Stock
ABB High Performance S800N MCB, 2P, 63A Curve C, 400V AC, 36 kA Breaking Capacity
  • RS stock no. 435-566
  • Mfr. Part No. 2CCS892001R0634 S802N-C63
Each
R 3,560.19(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 40A, Fixed Mount
  • RS stock no. 236-6621
  • Mfr. Part No. 1SDA068158R1 XT4N 160 Ekip LSIG 40A FF
Each
R 41,029.27(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 4P, 750mA Curve C
  • RS stock no. 230-0941
  • Mfr. Part No. 177434 FAZ6-C0,75/4
Each
R 3,368.84(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS stock no. 254-6326
  • Mfr. Part No. C12B34V160L
Each
R 30,723.71(exc. VAT)
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