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

194 of 999+
In Stock
Better World
Siemens SENTRON 5SY5 MCB, 2P, 6A Curve B, 10 kA Breaking Capacity
  • RS stock no. 203-2201
  • Mfr. Part No. 5SY5206-6
Each
R 2,649.54(exc. VAT)
In Stock
Eaton Busbar Adapter, 690V
  • RS stock no. 250-9761
  • Mfr. Part No. 142528 BBA0K-32
Each
R 969.68(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS stock no. 249-240
  • Mfr. Part No. 3VA6440-7JQ31-2AA0
Each
R 79,752.47(exc. VAT)
In Stock
Eaton xEffect MCB, 1P, 6A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 922-7033
  • Mfr. Part No. 278578 FAZ-D6/1
Each
R 669.81(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 500A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 270-3507
  • Mfr. Part No. 3VA1450-5GF42-0AA0
Each
R 38,963.28(exc. VAT)
Temporarily out of stock
ABB MCCB 4P 100A, Breaking Capacity 15 kA
  • RS stock no. 192-0827
  • Mfr. Part No. 1SDA067962R1
Each
R 33,300.05(exc. VAT)
Temporarily out of stock
Eaton Moeller IZMX Electronic Circuit Breaker 5kA IZM63, Withdrawable
  • RS stock no. 263-094
  • Mfr. Part No. 303678 IZM63H4-P50W-1
Each
R 1,347,037.95(exc. VAT)
Temporarily out of stock
Hager NQN MCB, 2P, 50A Curve B, 415V AC, 15 kA Breaking Capacity
  • RS stock no. 597-865
  • Mfr. Part No. NQN250
Each
R 4,917.71(exc. VAT)
Temporarily out of stock
Eaton Moeller IZMX Electronic Circuit Breaker 5kA IZM63, Withdrawable
  • RS stock no. 262-847
  • Mfr. Part No. 303675 IZM63N4-P50W-1
Each
R 1,260,327.23(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS stock no. 254-015
  • Mfr. Part No. 266663 NZM1-XSM-L
Each
R 4,894.42(exc. VAT)
Temporarily out of stock
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels
  • RS stock no. 157-350
  • Mfr. Part No. 3VA2225-6KQ32-0KA0
Each
R 40,428.69(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 8A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 271-9638
  • Mfr. Part No. 3VA11086MG360AA0
Each
R 6,722.41(exc. VAT)
Temporarily out of stock
Lovato P1 MCB, 3P, 13A Curve C, 230V AC, 80V DC
  • RS stock no. 248-5621
  • Mfr. Part No. P1MB3PC13
Each
R 1,801.55(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4LE 3 Pole 690V ac Voltage Rating, 2A Current Rating
  • RS stock no. 175-1451
  • Mfr. Part No. GV4LE02N6
Each
R 8,862.67(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3P, 500mA Curve D
  • RS stock no. 230-0987
  • Mfr. Part No. 177408 FAZ6-D0,5/3
Each
R 2,904.88(exc. VAT)
Temporarily out of stock
Hager BF RCD, 25A, 2 Pole, 300mA, Type AC
  • RS stock no. 144-4862
  • Mfr. Part No. BF226
Each
R 5,501.73(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip G Hi-Touch LSIG, 4 channels
  • RS stock no. 259-4750
  • Mfr. Part No. 1SDA073030R1
Each
R 295,244.54(exc. VAT)
Temporarily out of stock
RS PRO MCB, 1P, 10A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 265-0195
Each
R 231.72(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Dip LI, 3 channels
  • RS stock no. 259-9952
  • Mfr. Part No. 1SDA070831R1
Each
R 88,425.71(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 32A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 211-3734
  • Mfr. Part No. 3VA1132-6EF46-0AA0
Each
R 9,101.85(exc. VAT)
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